mizzkey/packages/frontend-shared/js/emojilist.ts
2024-08-29 18:38:32 +09:00

74 lines
2.5 KiB
TypeScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* 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] as number],
}));
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;
}
}
/**
* テキストスタイル絵文字U+260Eなどの1文字で表現される絵文字をカラースタイル絵文字に変換します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[];
}