hometown/app/javascript/mastodon/features/emoji/emoji_utils.js

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// This code is largely borrowed from:
// https://github.com/missive/emoji-mart/blob/bbd4fbe/src/utils/index.js
import data from './emoji_mart_data_light';
const COLONS_REGEX = /^(?:\:([^\:]+)\:)(?:\:skin-tone-(\d)\:)?$/;
function buildSearch(thisData) {
const search = [];
let addToSearch = (strings, split) => {
if (!strings) {
return;
}
(Array.isArray(strings) ? strings : [strings]).forEach((string) => {
(split ? string.split(/[-|_|\s]+/) : [string]).forEach((s) => {
s = s.toLowerCase();
if (search.indexOf(s) === -1) {
search.push(s);
}
});
});
};
addToSearch(thisData.short_names, true);
addToSearch(thisData.name, true);
addToSearch(thisData.keywords, false);
addToSearch(thisData.emoticons, false);
return search;
}
function unifiedToNative(unified) {
let unicodes = unified.split('-'),
codePoints = unicodes.map((u) => `0x${u}`);
return String.fromCodePoint(...codePoints);
}
function sanitize(emoji) {
let { name, short_names, skin_tone, skin_variations, emoticons, unified, custom, imageUrl } = emoji,
id = emoji.id || short_names[0],
colons = `:${id}:`;
if (custom) {
return {
id,
name,
colons,
emoticons,
custom,
imageUrl,
};
}
if (skin_tone) {
colons += `:skin-tone-${skin_tone}:`;
}
return {
id,
name,
colons,
emoticons,
unified: unified.toLowerCase(),
skin: skin_tone || (skin_variations ? 1 : null),
native: unifiedToNative(unified),
};
}
function getSanitizedData(emoji) {
return sanitize(getData(emoji));
}
function getData(emoji) {
let emojiData = {};
if (typeof emoji === 'string') {
let matches = emoji.match(COLONS_REGEX);
if (matches) {
emoji = matches[1];
}
if (data.short_names.hasOwnProperty(emoji)) {
emoji = data.short_names[emoji];
}
if (data.emojis.hasOwnProperty(emoji)) {
emojiData = data.emojis[emoji];
}
} else if (emoji.custom) {
emojiData = emoji;
emojiData.search = buildSearch({
short_names: emoji.short_names,
name: emoji.name,
keywords: emoji.keywords,
emoticons: emoji.emoticons,
});
emojiData.search = emojiData.search.join(',');
} else if (emoji.id) {
if (data.short_names.hasOwnProperty(emoji.id)) {
emoji.id = data.short_names[emoji.id];
}
if (data.emojis.hasOwnProperty(emoji.id)) {
emojiData = data.emojis[emoji.id];
}
}
emojiData.emoticons = emojiData.emoticons || [];
emojiData.variations = emojiData.variations || [];
if (emojiData.variations && emojiData.variations.length) {
emojiData = JSON.parse(JSON.stringify(emojiData));
emojiData.unified = emojiData.variations.shift();
}
return emojiData;
}
function intersect(a, b) {
let set;
let list;
if (a.length < b.length) {
set = new Set(a);
list = b;
} else {
set = new Set(b);
list = a;
}
return Array.from(new Set(list.filter(x => set.has(x))));
}
export { getData, getSanitizedData, intersect };