David Baker
ec3ff529e7
Emojione's regex for detecting emoji is *enourmous* and we were running it on every display name, room name, message etc every time those components mounted. Add a much simpler regex to rule out the majority of strings that contain no emoji and fast-path them. Makes room switching about 10% faster (in my tests with all the profiling turned on).
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
/*
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Copyright 2016 Aviral Dasgupta
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from 'react';
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import {emojifyText, containsEmoji} from '../../../HtmlUtils';
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export default function EmojiText(props) {
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const {element, children, ...restProps} = props;
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// fast path: simple regex to detect strings that don't contain
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// emoji and just return them
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if (containsEmoji(children)) {
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restProps.dangerouslySetInnerHTML = emojifyText(children);
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return React.createElement(element, restProps);
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} else {
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return React.createElement(element, restProps, children);
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}
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}
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EmojiText.propTypes = {
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element: React.PropTypes.string,
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children: React.PropTypes.string.isRequired,
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};
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EmojiText.defaultProps = {
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element: 'span',
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};
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