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forked from mirror/misskey
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syuilo 2024-08-23 12:56:12 +09:00
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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
export const unicodeEmojiCategories = ['face', 'people', 'animals_and_nature', 'food_and_drink', 'activity', 'travel_and_places', 'objects', 'symbols', 'flags'] as const;
export type UnicodeEmojiDef = {
name: string;
char: string;
category: typeof unicodeEmojiCategories[number];
}
// initial converted from https://github.com/muan/emojilib/commit/242fe68be86ed6536843b83f7e32f376468b38fb
import _emojilist from './emojilist.json';
export const emojilist: UnicodeEmojiDef[] = _emojilist.map(x => ({
name: x[1] as string,
char: x[0] as string,
category: unicodeEmojiCategories[x[2]],
}));
const unicodeEmojisMap = new Map<string, UnicodeEmojiDef>(
emojilist.map(x => [x.char, x]),
);
const _indexByChar = new Map<string, number>();
const _charGroupByCategory = new Map<string, string[]>();
for (let i = 0; i < emojilist.length; i++) {
const emo = emojilist[i];
_indexByChar.set(emo.char, i);
if (_charGroupByCategory.has(emo.category)) {
_charGroupByCategory.get(emo.category)?.push(emo.char);
} else {
_charGroupByCategory.set(emo.category, [emo.char]);
}
}
export const emojiCharByCategory = _charGroupByCategory;
export function getUnicodeEmoji(char: string): UnicodeEmojiDef | string {
// Colorize it because emojilist.json assumes that
return unicodeEmojisMap.get(colorizeEmoji(char))
// カラースタイル絵文字がjsonに無い場合はテキストスタイル絵文字にフォールバックする
?? unicodeEmojisMap.get(char)
// それでも見つからない場合はそのまま返す絵文字情報がjsonに無い場合、このフォールバックが無いとレンダリングに失敗する
?? char;
}
export function getEmojiName(char: string): string {
// Colorize it because emojilist.json assumes that
const idx = _indexByChar.get(colorizeEmoji(char)) ?? _indexByChar.get(char);
if (idx === undefined) {
// 絵文字情報がjsonに無い場合は名前の取得が出来ないのでそのまま返すしか無い
return char;
} else {
return emojilist[idx].name;
}
}
/**
* U+260Eなどの1文字で表現される絵文字VS16:U+FE0Fを付与
*/
export function colorizeEmoji(char: string) {
return char.length === 1 ? `${char}\uFE0F` : char;
}
export interface CustomEmojiFolderTree {
value: string;
category: string;
children: CustomEmojiFolderTree[];
}