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6 lines
18 KiB
JavaScript
6 lines
18 KiB
JavaScript
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/*!
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* perfect-scrollbar v1.4.0
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* (c) 2018 Hyunje Jun
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* @license MIT
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*/
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!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.PerfectScrollbar=e()}(this,function(){"use strict";function t(t){return getComputedStyle(t)}function e(t,e){for(var i in e){var r=e[i];"number"==typeof r&&(r+="px"),t.style[i]=r}return t}function i(t){var e=document.createElement("div");return e.className=t,e}function r(t,e){if(!v)throw new Error("No element matching method supported");return v.call(t,e)}function l(t){t.remove?t.remove():t.parentNode&&t.parentNode.removeChild(t)}function n(t,e){return Array.prototype.filter.call(t.children,function(t){return r(t,e)})}function o(t,e){var i=t.element.classList,r=m.state.scrolling(e);i.contains(r)?clearTimeout(Y[e]):i.add(r)}function s(t,e){Y[e]=setTimeout(function(){return t.isAlive&&t.element.classList.remove(m.state.scrolling(e))},t.settings.scrollingThreshold)}function a(t,e){o(t,e),s(t,e)}function c(t){if("function"==typeof window.CustomEvent)return new CustomEvent(t);var e=document.createEvent("CustomEvent");return e.initCustomEvent(t,!1,!1,void 0),e}function h(t,e,i,r,l){var n=i[0],o=i[1],s=i[2],h=i[3],u=i[4],d=i[5];void 0===r&&(r=!0),void 0===l&&(l=!1);var f=t.element;t.reach[h]=null,f[s]<1&&(t.reach[h]="start"),f[s]>t[n]-t[o]-1&&(t.reach[h]="end"),e&&(f.dispatchEvent(c("ps-scroll-"+h)),e<0?f.dispatchEvent(c("ps-scroll-"+u)):e>0&&f.dispatchEvent(c("ps-scroll-"+d)),r&&a(t,h)),t.reach[h]&&(e||l)&&f.dispatchEvent(c("ps-"+h+"-reach-"+t.reach[h]))}function u(t){return parseInt(t,10)||0}function d(t){return r(t,"input,[contenteditable]")||r(t,"select,[contenteditable]")||r(t,"textarea,[contenteditable]")||r(t,"button,[contenteditable]")}function f(e){var i=t(e);return u(i.width)+u(i.paddingLeft)+u(i.paddingRight)+u(i.borderLeftWidth)+u(i.borderRightWidth)}function p(t,e){return t.settings.minScrollbarLength&&(e=Math.max(e,t.settings.minScrollbarLength)),t.settings.maxScrollbarLength&&(e=Math.min(e,t.settings.maxScrollbarLength)),e}function b(t,i){var r={width:i.railXWidth},l=Math.floor(t.scrollTop);i.isRtl?r.left=i.negativeScrollAdjustment+t.scrollLeft+i.containerWidth-i.contentWidth:r.left=t.scrollLeft,i.isScrollbarXUsingBottom?r.bottom=i.scrollbarXBottom-l:r.top=i.scrollbarXTop+l,e(i.scrollbarXRail,r);var n={top:l,height:i.railYHeight};i.isScrollbarYUsingRight?i.isRtl?n.right=i.contentWidth-(i.negativeScrollAdjustment+t.scrollLeft)-i.scrollbarYRight-i.scrollbarYOuterWidth:n.right=i.scrollbarYRight-t.scrollLeft:i.isRtl?n.left=i.negativeScrollAdjustment+t.scrollLeft+2*i.containerWidth-i.contentWidth-i.scrollbarYLeft-i.scrollbarYOuterWidth:n.left=i.scrollbarYLeft+t.scrollLeft,e(i.scrollbarYRail,n),e(i.scrollbarX,{left:i.scrollbarXLeft,width:i.scrollbarXWidth-i.railBorderXWidth}),e(i.scrollbarY,{top:i.scrollbarYTop,height:i.scrollbarYHeight-i.railBorderYWidth})}function g(t,e){function i(e){b[d]=g+Y*(e[a]-v),o(t,f),R(t),e.stopPropagation(),e.preventDefault()}function r(){s(t,f),t[p].classList.remove(m.state.clicking),t.event.unbind(t.ownerDocument,"mousemove",i)}var l=e[0],n=e[1],a=e[2],c=e[3],h=e[4],u=e[5],d=e[6],f=e[7],p=e[8],b=t.element,g=null,v=null,Y=null;t.event.bind(t[h],"mousedown",function(e){g=b[d],v=e[a],Y=(t[n]-t[l])/(t[c]-t[u]),t.event.bind(t.ownerDocument,"mousemove",i),t.event.once(t.ownerDocument,"mouseup",r),t[p].classList.add(m.state.clicking),e.stopPropagation(),e.preventDefault()})}var v="undefined"!=typeof Element&&(Element.prototype.matches||Element.prototype.webkitMatchesSelector||Element.prototype.mozMatchesSelector||Element.prototype.msMatchesSelector),m={main:"ps",element:{thumb:function(t){return"ps__thumb-"+t},rail:function(t){return"ps__rail-"+t},consuming:"ps__child--consume"},state:{focus:"ps--focus",clicking:"ps--clicking",active:function(t){return"ps--active-"+t},scrolling:function(t){return"ps--scrolling-"+t}}},Y={x:null,y:null},X=function(t){this.element=t,this.handlers={}},w={isEmpty:{configurable:!0}};X.prototype.bind=function(t,e){void 0===this.handlers[t]&&(this.handlers[t]=[]),this.handlers[t].push(e),this.element.addEventListener(t,e,!1)},X.prototy
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