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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import React from 'react';
import EmojiStore from 'stores/emoji_store.jsx';
import * as Emoticons from 'utils/emoticons.jsx';
import SuggestionStore from 'stores/suggestion_store.jsx';
import Suggestion from './suggestion.jsx';
const MIN_EMOTICON_LENGTH = 2;
class EmoticonSuggestion extends Suggestion {
render() {
const text = this.props.term;
const emoji = this.props.item.emoji;
let className = 'emoticon-suggestion';
if (this.props.isSelection) {
className += ' suggestion--selected';
}
return (
<div
className={className}
onClick={this.handleClick}
>
<div className='pull-left'>
<img
alt={text}
className='emoticon-suggestion__image'
src={EmojiStore.getEmojiImageUrl(emoji)}
title={text}
/>
</div>
<div className='pull-left'>
{text}
</div>
</div>
);
}
}
export default class EmoticonProvider {
handlePretextChanged(suggestionId, pretext) {
let hasSuggestions = false;
// look for the potential emoticons at the start of the text, after whitespace, and at the start of emoji reaction commands
const captured = (/(^|\s|^\+|^-)(:([^:\s]*))$/g).exec(pretext);
if (captured) {
const prefix = captured[1];
const text = captured[2];
const partialName = captured[3];
if (partialName.length < MIN_EMOTICON_LENGTH) {
SuggestionStore.clearSuggestions(suggestionId);
return false;
}
const matched = [];
// check for text emoticons if this isn't for an emoji reaction
if (prefix !== '-' && prefix !== '+') {
for (const emoticon of Object.keys(Emoticons.emoticonPatterns)) {
if (Emoticons.emoticonPatterns[emoticon].test(text)) {
SuggestionStore.addSuggestion(suggestionId, text, EmojiStore.get(emoticon), EmoticonSuggestion, text);
hasSuggestions = true;
}
}
}
// check for named emoji
for (const [name, emoji] of EmojiStore.getEmojis()) {
if (emoji.aliases) {
// This is a system emoji so it may have multiple names
for (const alias of emoji.aliases) {
if (alias.indexOf(partialName) !== -1) {
matched.push({name: alias, emoji});
break;
}
}
} else if (name.indexOf(partialName) !== -1) {
// This is a custom emoji so it only has one name
matched.push({name, emoji});
}
}
// sort the emoticons so that emoticons starting with the entered text come first
matched.sort((a, b) => {
const aName = a.name;
const bName = b.name;
const aPrefix = aName.startsWith(partialName);
const bPrefix = bName.startsWith(partialName);
if (aPrefix === bPrefix) {
return aName.localeCompare(bName);
} else if (aPrefix) {
return -1;
}
return 1;
});
const terms = matched.map((item) => ':' + item.name + ':');
SuggestionStore.clearSuggestions(suggestionId);
if (terms.length > 0) {
SuggestionStore.addSuggestions(suggestionId, terms, matched, EmoticonSuggestion, text);
hasSuggestions = true;
}
}
if (hasSuggestions) {
// force the selection to be cleared since the order of elements may have changed
SuggestionStore.clearSelection(suggestionId);
return true;
}
return false;
}
}
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