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292 lines
11 KiB
JavaScript
292 lines
11 KiB
JavaScript
import {DOMUtils, ComposerExtension, RegExpUtils} from 'nylas-exports';
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import emoji from 'node-emoji';
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import EmojiStore from './emoji-store';
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import EmojiActions from './emoji-actions';
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import EmojiPicker from './emoji-picker';
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class EmojiComposerExtension extends ComposerExtension {
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static selState = null;
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static onContentChanged = ({editor}) => {
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const sel = editor.currentSelection()
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const {emojiOptions, triggerWord} = EmojiComposerExtension._findEmojiOptions(sel);
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if (sel.anchorNode && sel.isCollapsed) {
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if (emojiOptions.length > 0) {
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const offset = sel.anchorOffset;
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if (!DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
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const anchorOffset = Math.max(sel.anchorOffset - triggerWord.length - 1, 0);
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editor.select(sel.anchorNode,
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anchorOffset,
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sel.focusNode,
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sel.focusOffset)
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editor.wrapSelection("n1-emoji-autocomplete");
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editor.select(sel.anchorNode,
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offset,
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sel.anchorNode,
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offset);
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}
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} else {
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if (DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
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editor.unwrapNodeAndSelectAll(DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete"));
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editor.select(sel.anchorNode,
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sel.anchorOffset + triggerWord.length + 1,
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sel.focusNode,
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sel.focusOffset + triggerWord.length + 1);
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}
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}
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} else {
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if (DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
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editor.unwrapNodeAndSelectAll(DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete"));
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editor.select(sel.anchorNode,
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sel.anchorOffset + triggerWord.length,
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sel.focusNode,
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sel.focusOffset + triggerWord.length);
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}
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}
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};
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static onBlur = ({editor}) => {
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EmojiComposerExtension.selState = editor.currentSelection().exportSelection();
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};
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static onFocus = ({editor}) => {
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if (EmojiComposerExtension.selState) {
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editor.select(EmojiComposerExtension.selState);
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EmojiComposerExtension.selState = null;
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}
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};
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static toolbarComponentConfig = ({toolbarState}) => {
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const sel = toolbarState.selectionSnapshot;
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if (sel) {
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const {emojiOptions} = EmojiComposerExtension._findEmojiOptions(sel);
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if (emojiOptions.length > 0 && !toolbarState.dragging && !toolbarState.doubleDown) {
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const locationRefNode = DOMUtils.closest(sel.anchorNode,
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"n1-emoji-autocomplete");
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if (!locationRefNode) return null;
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const selectedEmoji = locationRefNode.getAttribute("selectedEmoji");
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return {
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component: EmojiPicker,
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props: {emojiOptions,
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selectedEmoji},
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locationRefNode: locationRefNode,
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width: EmojiComposerExtension._emojiPickerWidth(emojiOptions),
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height: EmojiComposerExtension._emojiPickerHeight(emojiOptions),
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hidePointer: true,
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}
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}
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}
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return null;
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};
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static editingActions = () => {
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return [{
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action: EmojiActions.selectEmoji,
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callback: EmojiComposerExtension._onSelectEmoji,
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}]
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};
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static onKeyDown = ({editor, event}) => {
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const sel = editor.currentSelection()
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const {emojiOptions} = EmojiComposerExtension._findEmojiOptions(sel);
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if (emojiOptions.length > 0) {
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if (event.key === "ArrowDown" || event.key === "ArrowRight" ||
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event.key === "ArrowUp" || event.key === "ArrowLeft") {
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event.preventDefault();
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const moveToNext = (event.key === "ArrowDown" || event.key === "ArrowRight");
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const emojiNameNode = DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete");
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if (!emojiNameNode) return null;
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const selectedEmoji = emojiNameNode.getAttribute("selectedEmoji");
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if (selectedEmoji) {
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const emojiIndex = emojiOptions.indexOf(selectedEmoji);
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if (emojiIndex < emojiOptions.length - 1 && moveToNext) {
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emojiNameNode.setAttribute("selectedEmoji", emojiOptions[emojiIndex + 1]);
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} else if (emojiIndex > 0 && !moveToNext) {
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emojiNameNode.setAttribute("selectedEmoji", emojiOptions[emojiIndex - 1]);
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} else {
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const index = moveToNext ? 0 : emojiOptions.length - 1;
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emojiNameNode.setAttribute("selectedEmoji", emojiOptions[index]);
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}
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} else {
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const index = moveToNext ? 1 : emojiOptions.length - 1;
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emojiNameNode.setAttribute("selectedEmoji", emojiOptions[index]);
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}
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} else if (event.key === "Enter" || event.key === "Tab") {
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event.preventDefault();
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const emojiNameNode = DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete");
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if (!emojiNameNode) return null;
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let selectedEmoji = emojiNameNode.getAttribute("selectedEmoji");
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if (!selectedEmoji) selectedEmoji = emojiOptions[0];
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const args = {
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editor: editor,
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actionArg: {
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emojiName: selectedEmoji,
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replaceSelection: true,
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},
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};
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EmojiComposerExtension._onSelectEmoji(args);
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}
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}
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return null;
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};
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static applyTransformsForSending = ({draftBodyRootNode}) => {
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const imgs = draftBodyRootNode.querySelectorAll('img')
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for (const imgEl of Array.from(imgs)) {
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const names = imgEl.className.split(' ');
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if (names[0] === 'emoji') {
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const emojiChar = emoji.get(names[1]);
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if (emojiChar) {
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imgEl.parentNode.replaceChild(document.createTextNode(emojiChar), imgEl);
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}
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}
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}
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}
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static unapplyTransformsForSending = ({draftBodyRootNode}) => {
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const treeWalker = document.createTreeWalker(draftBodyRootNode, NodeFilter.SHOW_TEXT);
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while (treeWalker.nextNode()) {
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const textNode = treeWalker.currentNode;
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const match = RegExpUtils.emojiRegex().exec(textNode.textContent);
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if (match) {
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const emojiPlusTrailingEl = textNode.splitText(match.index);
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emojiPlusTrailingEl.splitText(match.length);
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const emojiEl = emojiPlusTrailingEl;
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const imgEl = document.createElement('img');
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const emojiName = emoji.which(match[0])
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imgEl.className = `emoji ${emojiName}`;
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imgEl.src = EmojiStore.getImagePath(emojiName);
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imgEl.width = '14';
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imgEl.height = '14';
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imgEl.style.marginTop = '-5px';
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emojiEl.parentNode.replaceChild(imgEl, emojiEl);
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}
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}
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}
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static _findEmojiOptions(sel) {
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if (sel.anchorNode &&
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sel.anchorNode.nodeValue &&
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sel.anchorNode.nodeValue.length > 0 &&
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sel.isCollapsed) {
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const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset);
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let index = words.lastIndexOf(":");
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let lastWord = "";
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if (index !== -1 && words.lastIndexOf(" ") < index) {
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lastWord = words.substring(index + 1, sel.anchorOffset);
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} else {
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const {text} = EmojiComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
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index = text.lastIndexOf(":");
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if (index !== -1 && text.lastIndexOf(" ") < index) {
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lastWord = text.substring(index + 1);
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} else {
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return {triggerWord: "", emojiOptions: []};
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}
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}
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if (lastWord.length > 0) {
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return {triggerWord: lastWord, emojiOptions: EmojiComposerExtension._findMatches(lastWord)};
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}
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return {triggerWord: lastWord, emojiOptions: []};
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}
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return {triggerWord: "", emojiOptions: []};
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}
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static _onSelectEmoji = ({editor, actionArg}) => {
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const {emojiName, replaceSelection} = actionArg;
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if (!emojiName) return null;
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if (replaceSelection) {
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const sel = editor.currentSelection();
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if (sel.anchorNode &&
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sel.anchorNode.nodeValue &&
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sel.anchorNode.nodeValue.length > 0 &&
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sel.isCollapsed) {
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const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset);
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let index = words.lastIndexOf(":");
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let lastWord = words.substring(index + 1, sel.anchorOffset);
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if (index !== -1 && words.lastIndexOf(" ") < index) {
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editor.select(sel.anchorNode,
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sel.anchorOffset - lastWord.length - 1,
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sel.focusNode,
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sel.focusOffset);
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} else {
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const {text, textNode} = EmojiComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
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index = text.lastIndexOf(":");
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lastWord = text.substring(index + 1);
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const offset = textNode.nodeValue.lastIndexOf(":");
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editor.select(textNode,
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offset,
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sel.focusNode,
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sel.focusOffset);
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editor.delete();
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}
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}
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}
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const emojiChar = emoji.get(emojiName);
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const html = `<img
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class="emoji ${emojiName}"
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src="${EmojiStore.getImagePath(emojiName)}"
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width="14"
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height="14"
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style="margin-top: -5px;">`;
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editor.insertHTML(html, {selectInsertion: false});
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EmojiActions.useEmoji({emojiName: emojiName, emojiChar: emojiChar});
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return null;
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};
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static _emojiPickerWidth(emojiOptions) {
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let maxLength = 0;
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for (const emojiOption of emojiOptions) {
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if (emojiOption.length > maxLength) {
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maxLength = emojiOption.length;
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}
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}
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// TODO: Calculate width of words more accurately for a closer fit.
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const WIDTH_PER_CHAR = 8;
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return (maxLength + 10) * WIDTH_PER_CHAR;
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}
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static _emojiPickerHeight(emojiOptions) {
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const HEIGHT_PER_EMOJI = 25;
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if (emojiOptions.length < 5) {
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return emojiOptions.length * HEIGHT_PER_EMOJI + 20;
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}
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return 5 * HEIGHT_PER_EMOJI + 23;
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}
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static _getTextUntilSpace(node, offset) {
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let text = node.nodeValue.substring(0, offset);
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let prevTextNode = DOMUtils.previousTextNode(node);
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if (!prevTextNode) return {text: text, textNode: node};
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while (prevTextNode) {
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if (prevTextNode.nodeValue.indexOf(" ") === -1 &&
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prevTextNode.nodeValue.indexOf(":") === -1) {
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text = prevTextNode.nodeValue + text;
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prevTextNode = DOMUtils.previousTextNode(prevTextNode);
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} else if (prevTextNode.nextSibling &&
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prevTextNode.nextSibling.nodeName !== "DIV") {
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text = prevTextNode.nodeValue.trim() + text;
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break;
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} else {
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break;
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}
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}
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return {text: text, textNode: prevTextNode};
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}
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static _findMatches(word) {
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const emojiOptions = []
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const emojiNames = Object.keys(emoji.emoji).sort();
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for (const emojiName of emojiNames) {
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if (word === emojiName.substring(0, word.length)) {
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emojiOptions.push(emojiName);
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}
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}
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return emojiOptions;
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}
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}
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export default EmojiComposerExtension;
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