Mailspring/internal_packages/composer-emoji/lib/emoji-composer-extension.jsx

275 lines
10 KiB
JavaScript

import {DOMUtils, ComposerExtension, RegExpUtils} from 'nylas-exports';
import EmojiStore from './emoji-store';
import EmojiActions from './emoji-actions';
import EmojiPicker from './emoji-picker';
import emoji from 'node-emoji';
class EmojiComposerExtension extends ComposerExtension {
static selState = null;
static onContentChanged = ({editor}) => {
const sel = editor.currentSelection()
const {emojiOptions, triggerWord} = EmojiComposerExtension._findEmojiOptions(sel);
if (sel.anchorNode && sel.isCollapsed) {
if (emojiOptions.length > 0) {
const offset = sel.anchorOffset;
if (!DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
const anchorOffset = Math.max(sel.anchorOffset - triggerWord.length - 1, 0);
editor.select(sel.anchorNode,
anchorOffset,
sel.focusNode,
sel.focusOffset)
editor.wrapSelection("n1-emoji-autocomplete");
editor.select(sel.anchorNode,
offset,
sel.anchorNode,
offset);
}
} else {
if (DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
editor.unwrapNodeAndSelectAll(DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete"));
editor.select(sel.anchorNode,
sel.anchorOffset + triggerWord.length + 1,
sel.focusNode,
sel.focusOffset + triggerWord.length + 1);
}
}
} else {
if (DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete")) {
editor.unwrapNodeAndSelectAll(DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete"));
editor.select(sel.anchorNode,
sel.anchorOffset + triggerWord.length,
sel.focusNode,
sel.focusOffset + triggerWord.length);
}
}
};
static onBlur = ({editor}) => {
EmojiComposerExtension.selState = editor.currentSelection().exportSelection();
};
static onFocus = ({editor}) => {
if (EmojiComposerExtension.selState) {
editor.select(EmojiComposerExtension.selState);
EmojiComposerExtension.selState = null;
}
};
static toolbarComponentConfig = ({toolbarState}) => {
const sel = toolbarState.selectionSnapshot;
if (sel) {
const {emojiOptions} = EmojiComposerExtension._findEmojiOptions(sel);
if (emojiOptions.length > 0 && !toolbarState.dragging && !toolbarState.doubleDown) {
const locationRefNode = DOMUtils.closest(sel.anchorNode,
"n1-emoji-autocomplete");
if (!locationRefNode) return null;
const selectedEmoji = locationRefNode.getAttribute("selectedEmoji");
return {
component: EmojiPicker,
props: {emojiOptions,
selectedEmoji},
locationRefNode: locationRefNode,
width: EmojiComposerExtension._emojiPickerWidth(emojiOptions),
height: EmojiComposerExtension._emojiPickerHeight(emojiOptions),
hidePointer: true,
}
}
}
return null;
};
static editingActions = () => {
return [{
action: EmojiActions.selectEmoji,
callback: EmojiComposerExtension._onSelectEmoji,
}]
};
static onKeyDown = ({editor, event}) => {
const sel = editor.currentSelection()
const {emojiOptions} = EmojiComposerExtension._findEmojiOptions(sel);
if (emojiOptions.length > 0) {
if (event.key === "ArrowDown" || event.key === "ArrowRight" ||
event.key === "ArrowUp" || event.key === "ArrowLeft") {
event.preventDefault();
const moveToNext = (event.key === "ArrowDown" || event.key === "ArrowRight");
const emojiNameNode = DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete");
if (!emojiNameNode) return null;
const selectedEmoji = emojiNameNode.getAttribute("selectedEmoji");
if (selectedEmoji) {
const emojiIndex = emojiOptions.indexOf(selectedEmoji);
if (emojiIndex < emojiOptions.length - 1 && moveToNext) {
emojiNameNode.setAttribute("selectedEmoji", emojiOptions[emojiIndex + 1]);
} else if (emojiIndex > 0 && !moveToNext) {
emojiNameNode.setAttribute("selectedEmoji", emojiOptions[emojiIndex - 1]);
} else {
const index = moveToNext ? 0 : emojiOptions.length - 1;
emojiNameNode.setAttribute("selectedEmoji", emojiOptions[index]);
}
} else {
const index = moveToNext ? 1 : emojiOptions.length - 1;
emojiNameNode.setAttribute("selectedEmoji", emojiOptions[index]);
}
} else if (event.key === "Enter" || event.key === "Tab") {
event.preventDefault();
const emojiNameNode = DOMUtils.closest(sel.anchorNode, "n1-emoji-autocomplete");
if (!emojiNameNode) return null;
let selectedEmoji = emojiNameNode.getAttribute("selectedEmoji");
if (!selectedEmoji) selectedEmoji = emojiOptions[0];
const args = {
editor: editor,
actionArg: {
emojiName: selectedEmoji,
replaceSelection: true,
},
};
EmojiComposerExtension._onSelectEmoji(args);
}
}
return null;
};
static applyTransformsToDraft = ({draft}) => {
const nextDraft = draft.clone();
nextDraft.body = nextDraft.body.replace(/<img class="emoji ([a-zA-Z0-9-_]*)" [^<]+>/g, (match, emojiName) =>
emoji.get(emojiName)
);
return nextDraft;
}
static unapplyTransformsToDraft = ({draft}) => {
const nextDraft = draft.clone();
nextDraft.body = nextDraft.body.replace(RegExpUtils.emojiRegex(), (match) =>
`<img class="emoji ${emoji.which(match)}" src="${EmojiStore.getImagePath(emoji.which(match))}" width="14" height="14" style="margin-top: -5px;">`
);
return nextDraft;
}
static _findEmojiOptions(sel) {
if (sel.anchorNode &&
sel.anchorNode.nodeValue &&
sel.anchorNode.nodeValue.length > 0 &&
sel.isCollapsed) {
const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset);
let index = words.lastIndexOf(":");
let lastWord = "";
if (index !== -1 && words.lastIndexOf(" ") < index) {
lastWord = words.substring(index + 1, sel.anchorOffset);
} else {
const {text} = EmojiComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
index = text.lastIndexOf(":");
if (index !== -1 && text.lastIndexOf(" ") < index) {
lastWord = text.substring(index + 1);
} else {
return {triggerWord: "", emojiOptions: []};
}
}
if (lastWord.length > 0) {
return {triggerWord: lastWord, emojiOptions: EmojiComposerExtension._findMatches(lastWord)};
}
return {triggerWord: lastWord, emojiOptions: []};
}
return {triggerWord: "", emojiOptions: []};
}
static _onSelectEmoji = ({editor, actionArg}) => {
const {emojiName, replaceSelection} = actionArg;
if (!emojiName) return null;
if (replaceSelection) {
const sel = editor.currentSelection();
if (sel.anchorNode &&
sel.anchorNode.nodeValue &&
sel.anchorNode.nodeValue.length > 0 &&
sel.isCollapsed) {
const words = sel.anchorNode.nodeValue.substring(0, sel.anchorOffset);
let index = words.lastIndexOf(":");
let lastWord = words.substring(index + 1, sel.anchorOffset);
if (index !== -1 && words.lastIndexOf(" ") < index) {
editor.select(sel.anchorNode,
sel.anchorOffset - lastWord.length - 1,
sel.focusNode,
sel.focusOffset);
} else {
const {text, textNode} = EmojiComposerExtension._getTextUntilSpace(sel.anchorNode, sel.anchorOffset);
index = text.lastIndexOf(":");
lastWord = text.substring(index + 1);
const offset = textNode.nodeValue.lastIndexOf(":");
editor.select(textNode,
offset,
sel.focusNode,
sel.focusOffset);
editor.delete();
}
}
}
const emojiChar = emoji.get(emojiName);
const html = `<img
class="emoji ${emojiName}"
src="${EmojiStore.getImagePath(emojiName)}"
width="14"
height="14"
style="margin-top: -5px;">`;
editor.insertHTML(html, {selectInsertion: false});
EmojiActions.useEmoji({emojiName: emojiName, emojiChar: emojiChar});
return null;
};
static _emojiPickerWidth(emojiOptions) {
let maxLength = 0;
for (const emojiOption of emojiOptions) {
if (emojiOption.length > maxLength) {
maxLength = emojiOption.length;
}
}
// TODO: Calculate width of words more accurately for a closer fit.
const WIDTH_PER_CHAR = 8;
return (maxLength + 10) * WIDTH_PER_CHAR;
}
static _emojiPickerHeight(emojiOptions) {
const HEIGHT_PER_EMOJI = 25;
if (emojiOptions.length < 5) {
return emojiOptions.length * HEIGHT_PER_EMOJI + 20;
}
return 5 * HEIGHT_PER_EMOJI + 23;
}
static _getTextUntilSpace(node, offset) {
let text = node.nodeValue.substring(0, offset);
let prevTextNode = DOMUtils.previousTextNode(node);
if (!prevTextNode) return {text: text, textNode: node};
while (prevTextNode) {
if (prevTextNode.nodeValue.indexOf(" ") === -1 &&
prevTextNode.nodeValue.indexOf(":") === -1) {
text = prevTextNode.nodeValue + text;
prevTextNode = DOMUtils.previousTextNode(prevTextNode);
} else if (prevTextNode.nextSibling &&
prevTextNode.nextSibling.nodeName !== "DIV") {
text = prevTextNode.nodeValue.trim() + text;
break;
} else {
break;
}
}
return {text: text, textNode: prevTextNode};
}
static _findMatches(word) {
const emojiOptions = []
const emojiNames = Object.keys(emoji.emoji).sort();
for (const emojiName of emojiNames) {
if (word === emojiName.substring(0, word.length)) {
emojiOptions.push(emojiName);
}
}
return emojiOptions;
}
}
export default EmojiComposerExtension;