53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
/*
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Copyright 2017 Michael Telatynski <7t3chguy@gmail.com>
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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 PropTypes from 'prop-types';
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import {highlightBlock} from 'highlight.js';
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export default class SyntaxHighlight extends React.Component {
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static propTypes = {
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className: PropTypes.string,
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children: PropTypes.node,
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};
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constructor(props, context) {
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super(props, context);
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this._ref = this._ref.bind(this);
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}
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// componentDidUpdate used here for reusability
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// componentWillReceiveProps fires too early to call highlightBlock on.
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componentDidUpdate() {
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if (this._el) highlightBlock(this._el);
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}
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// call componentDidUpdate because _ref is fired on initial render
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// which does not fire componentDidUpdate
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_ref(el) {
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this._el = el;
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this.componentDidUpdate();
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}
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render() {
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const { className, children } = this.props;
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return <pre className={`${className} mx_SyntaxHighlight`} ref={this._ref}>
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<code>{ children }</code>
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</pre>;
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}
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}
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