140 lines
5.2 KiB
JavaScript
140 lines
5.2 KiB
JavaScript
/*
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Copyright 2016 Aviral Dasgupta
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Copyright 2017 Vector Creations Ltd
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Copyright 2017, 2018 New Vector Ltd
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Copyright 2019 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from 'react';
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import { _t } from '../languageHandler';
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import AutocompleteProvider from './AutocompleteProvider';
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import QueryMatcher from './QueryMatcher';
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import {PillCompletion} from './Components';
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import type {Completion, SelectionRange} from './Autocompleter';
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import _uniq from 'lodash/uniq';
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import _sortBy from 'lodash/sortBy';
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import SettingsStore from "../settings/SettingsStore";
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import { shortcodeToUnicode } from '../HtmlUtils';
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import EMOTICON_REGEX from 'emojibase-regex/emoticon';
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import EMOJIBASE from 'emojibase-data/en/compact.json';
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const LIMIT = 20;
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// Match for ascii-style ";-)" emoticons or ":wink:" shortcodes provided by emojibase
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const EMOJI_REGEX = new RegExp('(' + EMOTICON_REGEX.source + '|:[+-\\w]*:?)$', 'g');
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// XXX: it's very unclear why we bother with this generated emojidata file.
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// all it means is that we end up bloating the bundle with precomputed stuff
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// which would be trivial to calculate and cache on demand.
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const EMOJI_SHORTNAMES = EMOJIBASE.sort((a, b) => {
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if (a.group === b.group) {
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return a.order - b.order;
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}
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return a.group - b.group;
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}).map((emoji, index) => {
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return {
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emoji,
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shortname: `:${emoji.shortcodes[0]}:`,
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// Include the index so that we can preserve the original order
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_orderBy: index,
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};
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});
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function score(query, space) {
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const index = space.indexOf(query);
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if (index === -1) {
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return Infinity;
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} else {
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return index;
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}
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}
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export default class EmojiProvider extends AutocompleteProvider {
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constructor() {
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super(EMOJI_REGEX);
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this.matcher = new QueryMatcher(EMOJI_SHORTNAMES, {
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keys: ['emoji.emoticon', 'shortname'],
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funcs: [
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(o) => o.emoji.shortcodes.length > 1 ? o.emoji.shortcodes.slice(1).map(s => `:${s}:`).join(" ") : "", // aliases
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],
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// For matching against ascii equivalents
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shouldMatchWordsOnly: false,
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});
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this.nameMatcher = new QueryMatcher(EMOJI_SHORTNAMES, {
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keys: ['emoji.annotation'],
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// For removing punctuation
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shouldMatchWordsOnly: true,
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});
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}
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async getCompletions(query: string, selection: SelectionRange, force?: boolean): Array<Completion> {
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if (!SettingsStore.getValue("MessageComposerInput.suggestEmoji")) {
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return []; // don't give any suggestions if the user doesn't want them
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}
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let completions = [];
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const {command, range} = this.getCurrentCommand(query, selection);
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if (command) {
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const matchedString = command[0];
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completions = this.matcher.match(matchedString);
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// Do second match with shouldMatchWordsOnly in order to match against 'name'
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completions = completions.concat(this.nameMatcher.match(matchedString));
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const sorters = [];
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// make sure that emoticons come first
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sorters.push((c) => score(matchedString, c.emoji.emoticon || ""));
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// then sort by score (Infinity if matchedString not in shortname)
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sorters.push((c) => score(matchedString, c.shortname));
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// If the matchedString is not empty, sort by length of shortname. Example:
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// matchedString = ":bookmark"
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// completions = [":bookmark:", ":bookmark_tabs:", ...]
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if (matchedString.length > 1) {
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sorters.push((c) => c.shortname.length);
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}
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// Finally, sort by original ordering
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sorters.push((c) => c._orderBy);
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completions = _sortBy(_uniq(completions), sorters);
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completions = completions.map(({shortname}) => {
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const unicode = shortcodeToUnicode(shortname);
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return {
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completion: unicode,
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component: (
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<PillCompletion title={shortname} aria-label={unicode} initialComponent={
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<span style={{maxWidth: '1em'}}>{ unicode }</span>
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} />
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),
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range,
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};
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}).slice(0, LIMIT);
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}
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return completions;
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}
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getName() {
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return '😃 ' + _t('Emoji');
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}
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renderCompletions(completions: [React.Component]): ?React.Component {
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return (
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<div className="mx_Autocomplete_Completion_container_pill" role="listbox" aria-label={_t("Emoji Autocomplete")}>
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{ completions }
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</div>
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);
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}
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}
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