56 lines
1.6 KiB
TypeScript
56 lines
1.6 KiB
TypeScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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import {Client4} from '@mm-redux/client';
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import {Emoji, SystemEmoji, CustomEmoji} from '@mm-redux/types/emojis';
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export function isSystemEmoji(emoji: Emoji): emoji is SystemEmoji {
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return 'batch' in emoji;
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}
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export function isCustomEmoji(emoji: Emoji): emoji is CustomEmoji {
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return 'id' in emoji;
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}
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export function getEmojiImageUrl(emoji: Emoji): string {
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if (isCustomEmoji(emoji)) {
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return Client4.getEmojiRoute(emoji.id) + '/image';
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}
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const filename = emoji.filename || emoji.aliases[0];
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return Client4.getSystemEmojiImageUrl(filename);
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}
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export function parseNeededCustomEmojisFromText(text: string, systemEmojis: Set<string>, customEmojisByName: Map<string, CustomEmoji>, nonExistentEmoji: Set<string>): Set<string> {
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if (!text.includes(':')) {
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return new Set();
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}
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const pattern = /:([A-Za-z0-9_-]+):/gi;
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const customEmojis = new Set<string>();
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let match;
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while ((match = pattern.exec(text)) !== null) {
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if (!match) {
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continue;
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}
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if (systemEmojis.has(match[1])) {
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// It's a system emoji, go the next match
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continue;
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}
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if (nonExistentEmoji.has(match[1])) {
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// We've previously confirmed this is not a custom emoji
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continue;
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}
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if (customEmojisByName.has(match[1])) {
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// We have the emoji, go to the next match
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continue;
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}
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customEmojis.add(match[1]);
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}
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return customEmojis;
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}
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