94 lines
2.7 KiB
JavaScript
94 lines
2.7 KiB
JavaScript
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import Instance from './instance.js';
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const EMOJI_REGEX = /:[a-z0-9_\-]+:/g;
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let emoji_cache = [];
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export default class Emoji {
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name;
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host;
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url;
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width;
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height;
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static parse(data, host) {
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const instance = Instance.get_instance();
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let emoji = null;
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switch (instance.type) {
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case Instance.types.ICESHRIMP:
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emoji = Emoji.#parse_iceshrimp(data);
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break;
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case Instance.types.MASTODON:
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emoji = Emoji.#parse_mastodon(data);
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break;
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default:
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break;
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}
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if (emoji !== null) emoji_cache.push(emoji);
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return emoji;
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}
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static #parse_iceshrimp(data, host) {
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let emoji = new Emoji()
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emoji.name = data.name.substring(1, data.name.search('@'));
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emoji.host = host;
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emoji.url = data.url;
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emoji.width = data.width;
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emoji.height = data.height;
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return emoji;
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}
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static #parse_mastodon(data, host) {
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let emoji = new Emoji()
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emoji.name = data.shortcode;
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emoji.host = host;
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emoji.url = data.url;
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emoji.width = data.width;
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emoji.height = data.height;
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return emoji;
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}
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get id() {
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return this.name + '@' + this.host;
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}
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}
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export function parse_text(text, ignore_instance) {
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if (!text) return text;
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let index = text.search(EMOJI_REGEX);
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if (index === -1) return text;
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index++;
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// find the emoji name
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let length = 0;
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while (index + length < text.length && text[index + length] !== ':') length++;
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let emoji_name = ':' + text.substring(index, index + length) + ':';
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// does this emoji exist?
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let emoji;
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for (let cached in emoji_cache) {
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if (cached.id === emoji_name) {
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emoji = cached;
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break;
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}
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}
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if (!emoji) return text.substring(0, index + length) + parse_text(text.substring(index + length));
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// replace emoji code with <img>
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const img = `<img src="${emoji.url}" class="emoji" width="26" height="26" title=":${emoji_name}:" alt="${emoji_name}">`;
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return text.substring(0, index - 1) + img +
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parse(text.substring(index + length + 1), emojis, ignore_instance);
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}
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export function parse_one(reaction, emojis) {
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if (reaction == '❤') return '❤️'; // stupid heart unicode
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if (!reaction.startsWith(':') || !reaction.endsWith(':')) return reaction;
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for (let i = 0; i < emojis.length; i++) {
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if (emojis[i].name == reaction.substring(1, reaction.length - 1))
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return `<img src="${emojis[i].url}" class="emoji" width="26" height="26" title="${reaction}" alt="${emojis[i].name}">`;
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}
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return reaction;
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}
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