126 lines
3.4 KiB
JavaScript
126 lines
3.4 KiB
JavaScript
import { emojis, aliases, translations, tonableEmojis } from 'pretty-text/emoji/data';
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// bump up this number to expire all emojis
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export const IMAGE_VERSION = "5";
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const extendedEmoji = {};
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export function registerEmoji(code, url) {
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code = code.toLowerCase();
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extendedEmoji[code] = url;
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}
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export function emojiList() {
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const result = emojis.slice(0);
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_.each(extendedEmoji, (v,k) => result.push(k));
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return result;
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}
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const emojiHash = {};
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// add all default emojis
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emojis.forEach(code => emojiHash[code] = true);
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// and their aliases
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const aliasHash = {};
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Object.keys(aliases).forEach(name => {
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aliases[name].forEach(alias => aliasHash[alias] = name);
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});
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export function performEmojiUnescape(string, opts) {
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// this can be further improved by supporting matches of emoticons that don't begin with a colon
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if (string.indexOf(":") >= 0) {
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return string.replace(/\B:[^\s:]+(?::t\d)?:?\B/g, m => {
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const isEmoticon = !!translations[m];
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const emojiVal = isEmoticon ? translations[m] : m.slice(1, m.length - 1);
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const hasEndingColon = m.lastIndexOf(":") === m.length - 1;
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const url = buildEmojiUrl(emojiVal, opts);
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const classes = isCustomEmoji(emojiVal, opts) ? "emoji emoji-custom" : "emoji";
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return url && (isEmoticon || hasEndingColon) ?
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`<img src='${url}' ${opts.skipTitle ? '' : `title='${emojiVal}'`} alt='${emojiVal}' class='${classes}'>` : m;
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});
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}
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return string;
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}
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export function isCustomEmoji(code, opts) {
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code = code.toLowerCase();
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if (extendedEmoji.hasOwnProperty(code)) return true;
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if (opts && opts.customEmoji && opts.customEmoji.hasOwnProperty(code)) return true;
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return false;
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}
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export function buildEmojiUrl(code, opts) {
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let url;
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code = code.toLowerCase();
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if (extendedEmoji.hasOwnProperty(code)) {
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url = extendedEmoji[code];
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}
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if (opts && opts.customEmoji && opts.customEmoji[code]) {
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url = opts.customEmoji[code];
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}
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const noToneMatch = code.match(/(.?[\w-]*)?:?/);
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if (noToneMatch && !url && (emojiHash.hasOwnProperty(noToneMatch[1]) || aliasHash.hasOwnProperty(noToneMatch[1]))) {
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url = opts.getURL(`/images/emoji/${opts.emojiSet}/${code.replace(/:t/, '/')}.png`);
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}
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if (url) {
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url = url + "?v=" + IMAGE_VERSION;
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}
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return url;
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}
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export function emojiExists(code) {
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code = code.toLowerCase();
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return !!(extendedEmoji.hasOwnProperty(code) || emojiHash.hasOwnProperty(code) || aliasHash.hasOwnProperty(code));
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};
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let toSearch;
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export function emojiSearch(term, options) {
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const maxResults = (options && options["maxResults"]) || -1;
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if (maxResults === 0) { return []; }
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toSearch = toSearch || _.union(_.keys(emojiHash), _.keys(extendedEmoji), _.keys(aliasHash)).sort();
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const results = [];
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function addResult(t) {
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const val = aliasHash[t] || t;
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if (results.indexOf(val) === -1) {
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results.push(val);
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}
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return maxResults > 0 && results.length >= maxResults;
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}
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for (let i=0; i<toSearch.length; i++) {
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const item = toSearch[i];
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if (item.indexOf(term) === 0 && addResult(item)) {
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return results;
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}
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}
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for (let i=0; i<toSearch.length; i++) {
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const item = toSearch[i];
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if (item.indexOf(term) > 0 && addResult(item)) {
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return results;
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}
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}
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return results;
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};
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export function isSkinTonableEmoji(term) {
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let match = term.match(/^:?(.*?):?$/);
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if (match) {
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return tonableEmojis.indexOf(match[1]) !== -1;
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} else {
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return tonableEmojis.indexOf(term) !== -1;
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}
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}
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