2017-10-02 01:22:24 -04:00
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// This code is largely borrowed from:
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2017-10-07 06:17:02 -04:00
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// https://github.com/missive/emoji-mart/blob/5f2ffcc/src/utils/emoji-index.js
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2017-10-02 01:22:24 -04:00
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2017-10-05 21:42:34 -04:00
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import data from './emoji_mart_data_light';
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2017-10-02 01:22:24 -04:00
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import { getData, getSanitizedData, intersect } from './emoji_utils';
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2017-10-07 06:17:02 -04:00
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let originalPool = {};
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2017-10-02 01:22:24 -04:00
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let index = {};
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let emojisList = {};
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let emoticonsList = {};
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for (let emoji in data.emojis) {
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2017-10-07 06:17:02 -04:00
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let emojiData = data.emojis[emoji];
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let { short_names, emoticons } = emojiData;
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let id = short_names[0];
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if (emoticons) {
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emoticons.forEach(emoticon => {
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if (emoticonsList[emoticon]) {
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return;
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}
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2017-10-02 01:22:24 -04:00
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emoticonsList[emoticon] = id;
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2017-10-07 06:17:02 -04:00
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});
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2017-10-02 01:22:24 -04:00
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}
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emojisList[id] = getSanitizedData(id);
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2017-10-07 06:17:02 -04:00
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originalPool[id] = emojiData;
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}
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function addCustomToPool(custom, pool) {
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custom.forEach((emoji) => {
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let emojiId = emoji.id || emoji.short_names[0];
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if (emojiId && !pool[emojiId]) {
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pool[emojiId] = getData(emoji);
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emojisList[emojiId] = getSanitizedData(emoji);
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}
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});
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2017-10-02 01:22:24 -04:00
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}
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function search(value, { emojisToShowFilter, maxResults, include, exclude, custom = [] } = {}) {
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2017-10-07 06:17:02 -04:00
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addCustomToPool(custom, originalPool);
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2017-10-02 01:22:24 -04:00
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maxResults = maxResults || 75;
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include = include || [];
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exclude = exclude || [];
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2017-10-07 06:17:02 -04:00
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let results = null,
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pool = originalPool;
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2017-10-02 01:22:24 -04:00
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if (value.length) {
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if (value === '-' || value === '-1') {
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return [emojisList['-1']];
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}
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2017-10-07 06:17:02 -04:00
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let values = value.toLowerCase().split(/[\s|,|\-|_]+/),
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allResults = [];
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if (values.length > 2) {
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values = [values[0], values[1]];
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}
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if (include.length || exclude.length) {
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pool = {};
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2017-10-07 06:17:02 -04:00
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data.categories.forEach(category => {
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let isIncluded = include && include.length ? include.indexOf(category.name.toLowerCase()) > -1 : true;
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let isExcluded = exclude && exclude.length ? exclude.indexOf(category.name.toLowerCase()) > -1 : false;
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if (!isIncluded || isExcluded) {
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2017-10-07 06:17:02 -04:00
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return;
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2017-10-02 01:22:24 -04:00
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}
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2017-10-07 06:17:02 -04:00
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category.emojis.forEach(emojiId => pool[emojiId] = data.emojis[emojiId]);
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});
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if (custom.length) {
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let customIsIncluded = include && include.length ? include.indexOf('custom') > -1 : true;
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let customIsExcluded = exclude && exclude.length ? exclude.indexOf('custom') > -1 : false;
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if (customIsIncluded && !customIsExcluded) {
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addCustomToPool(custom, pool);
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2017-10-02 01:22:24 -04:00
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}
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}
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}
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2017-10-07 06:17:02 -04:00
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allResults = values.map((value) => {
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let aPool = pool,
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aIndex = index,
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length = 0;
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2017-10-02 01:22:24 -04:00
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2017-10-07 06:17:02 -04:00
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for (let charIndex = 0; charIndex < value.length; charIndex++) {
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const char = value[charIndex];
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length++;
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aIndex[char] = aIndex[char] || {};
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aIndex = aIndex[char];
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if (!aIndex.results) {
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let scores = {};
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aIndex.results = [];
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aIndex.pool = {};
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for (let id in aPool) {
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let emoji = aPool[id],
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{ search } = emoji,
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sub = value.substr(0, length),
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subIndex = search.indexOf(sub);
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if (subIndex !== -1) {
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let score = subIndex + 1;
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2017-10-07 06:17:02 -04:00
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if (sub === id) score = 0;
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2017-10-02 01:22:24 -04:00
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aIndex.results.push(emojisList[id]);
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aIndex.pool[id] = emoji;
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scores[id] = score;
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}
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}
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aIndex.results.sort((a, b) => {
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let aScore = scores[a.id],
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bScore = scores[b.id];
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return aScore - bScore;
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});
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}
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aPool = aIndex.pool;
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}
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return aIndex.results;
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}).filter(a => a);
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if (allResults.length > 1) {
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2017-10-07 06:17:02 -04:00
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results = intersect.apply(null, allResults);
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2017-10-02 01:22:24 -04:00
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} else if (allResults.length) {
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results = allResults[0];
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} else {
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results = [];
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}
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}
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if (results) {
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if (emojisToShowFilter) {
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results = results.filter((result) => emojisToShowFilter(data.emojis[result.id].unified));
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}
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if (results && results.length > maxResults) {
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results = results.slice(0, maxResults);
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}
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}
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return results;
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}
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export { search };
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