121 lines
2.9 KiB
TypeScript
121 lines
2.9 KiB
TypeScript
// Copyright 2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type Quill from 'quill';
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import Delta from 'quill-delta';
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import type { EmojiData } from '../../components/emoji/lib';
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import {
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convertShortName,
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convertShortNameToData,
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} from '../../components/emoji/lib';
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type AutoSubstituteAsciiEmojisOptions = {
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skinTone: number;
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};
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const emojiMap: Record<string, string> = {
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':-)': 'slightly_smiling_face',
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':-(': 'slightly_frowning_face',
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':-D': 'grinning',
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':-*': 'kissing_heart',
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':-P': 'stuck_out_tongue',
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':-p': 'stuck_out_tongue',
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":'(": 'cry',
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':-\\': 'confused',
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':-|': 'neutral_face',
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';-)': 'wink',
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'(Y)': '+1',
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'(N)': '-1',
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'(y)': '+1',
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'(n)': '-1',
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'<3': 'heart',
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'^_^': 'grin',
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'>_<': 'laughing',
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};
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function buildRegexp(obj: Record<string, string>): RegExp {
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const sanitizedKeys = Object.keys(obj).map(x =>
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x.replace(/([^a-zA-Z0-9])/g, '\\$1')
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);
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return new RegExp(`(${sanitizedKeys.join('|')})$`);
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}
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const EMOJI_REGEXP = buildRegexp(emojiMap);
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export class AutoSubstituteAsciiEmojis {
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options: AutoSubstituteAsciiEmojisOptions;
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quill: Quill;
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constructor(quill: Quill, options: AutoSubstituteAsciiEmojisOptions) {
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this.options = options;
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this.quill = quill;
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this.quill.on('text-change', (_now, _before, source) => {
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if (source !== 'user') {
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return;
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}
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// When pasting - Quill first updates contents with "user" source and only
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// then updates the selection with "silent" source. This means that unless
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// we wrap `onTextChange` with setTimeout - we are not going to see the
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// updated cursor position.
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setTimeout(() => this.onTextChange(), 0);
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});
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}
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onTextChange(): void {
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if (!window.storage.get('autoConvertEmoji', true)) {
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return;
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}
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const range = this.quill.getSelection();
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if (!range) {
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return;
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}
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const [blot, index] = this.quill.getLeaf(range.index);
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if (blot?.text == null) {
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return;
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}
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const textBeforeCursor = blot.text.slice(0, index);
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const match = textBeforeCursor.match(EMOJI_REGEXP);
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if (match == null) {
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return;
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}
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const [, textEmoji] = match;
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const emojiName = emojiMap[textEmoji];
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const emojiData = convertShortNameToData(emojiName, this.options.skinTone);
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if (emojiData) {
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this.insertEmoji(
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emojiData,
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range.index - textEmoji.length,
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textEmoji.length,
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textEmoji
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);
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}
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}
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insertEmoji(
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emojiData: EmojiData,
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index: number,
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range: number,
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source: string
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): void {
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const emoji = convertShortName(emojiData.short_name, this.options.skinTone);
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const delta = new Delta()
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.retain(index)
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.delete(range)
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.insert({
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emoji: { value: emoji, source },
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});
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this.quill.updateContents(delta, 'api');
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this.quill.setSelection(index + 1, 0);
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}
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}
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