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import _ from 'underscore';
import emojiMap from 'emojis/digests.json';
import emojiAliases from 'emojis/aliases.json';
export const validEmojiNames = [...Object.keys(emojiMap), ...Object.keys(emojiAliases)];
export function normalizeEmojiName(name) {
return Object.prototype.hasOwnProperty.call(emojiAliases, name) ? emojiAliases[name] : name;
}
export function isEmojiNameValid(name) {
return validEmojiNames.indexOf(name) >= 0;
}
export function filterEmojiNames(filter) {
const match = filter.toLowerCase();
return validEmojiNames.filter(name => name.indexOf(match) >= 0);
}
export function filterEmojiNamesByAlias(filter) {
return _.uniq(filterEmojiNames(filter).map(name => normalizeEmojiName(name)));
}
let emojiCategoryMap;
export function getEmojiCategoryMap() {
if (!emojiCategoryMap) {
emojiCategoryMap = {
activity: [],
people: [],
nature: [],
food: [],
travel: [],
objects: [],
symbols: [],
flags: [],
};
Object.keys(emojiMap).forEach(name => {
const emoji = emojiMap[name];
if (emojiCategoryMap[emoji.category]) {
emojiCategoryMap[emoji.category].push(name);
}
});
}
return emojiCategoryMap;
}
export function getEmojiInfo(query) {
let name = normalizeEmojiName(query);
let emojiInfo = emojiMap[name];
// Fallback to question mark for unknown emojis
if (!emojiInfo) {
name = 'grey_question';
emojiInfo = emojiMap[name];
}
return { ...emojiInfo, name };
}
export function emojiFallbackImageSrc(inputName) {
const { name, digest } = getEmojiInfo(inputName);
return `${gon.asset_host || ''}${gon.relative_url_root || ''}/assets/emoji/${name}-${digest}.png`;
}
export function emojiImageTag(name, src) {
return `<img class="emoji" title=":${name}:" alt=":${name}:" src="${src}" width="20" height="20" align="absmiddle" />`;
}
export function glEmojiTag(inputName, options) {
const opts = { sprite: false, forceFallback: false, ...options };
const { name, ...emojiInfo } = getEmojiInfo(inputName);
const fallbackImageSrc = emojiFallbackImageSrc(name);
const fallbackSpriteClass = `emoji-${name}`;
const classList = [];
if (opts.forceFallback && opts.sprite) {
classList.push('emoji-icon');
classList.push(fallbackSpriteClass);
}
const classAttribute = classList.length > 0 ? `class="${classList.join(' ')}"` : '';
const fallbackSpriteAttribute = opts.sprite
? `data-fallback-sprite-class="${fallbackSpriteClass}"`
: '';
let contents = emojiInfo.moji;
if (opts.forceFallback && !opts.sprite) {
contents = emojiImageTag(name, fallbackImageSrc);
}
return `
<gl-emoji
${classAttribute}
data-name="${name}"
data-fallback-src="${fallbackImageSrc}"
${fallbackSpriteAttribute}
data-unicode-version="${emojiInfo.unicodeVersion}"
title="${emojiInfo.description}"
>
${contents}
</gl-emoji>
`;
}
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