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import React from 'react';
import PropTypes from 'prop-types';
import createDOMPurify from 'dompurify';
class Schedule extends React.Component {
static propTypes = {
htmlStr: PropTypes.string.isRequired,
};
constructor(props) {
super(props);
this.updateScaling = this.updateScaling.bind(this);
}
componentDidMount() {
window.addEventListener('resize', this.updateScaling);
this.updateScaling();
}
componentDidUpdate() {
this.updateScaling();
}
componentWillUnmount() {
window.removeEventListener('resize', this.updateScaling);
}
updateScaling() {
const windowWidth = document.body.clientWidth;
const tableNode = this.scheduleDiv.querySelector('table');
if (!tableNode) return;
// We want a 16px margin on both sides, this marging will be scaled with
// the entire schedule.
const tableWidth = tableNode.offsetWidth + 32;
let scale = windowWidth / tableWidth;
if (scale > 1) {
scale = 1;
}
this.scheduleDiv.style.transform = `scale(${scale})`;
this.scheduleDiv.style.transformOrigin = 'left top';
this.scheduleDiv.style.margin = `${16 * scale}px`;
}
render() {
const DOMPurify = createDOMPurify(window);
const cleanHTML = DOMPurify.sanitize(this.props.htmlStr, {
ADD_ATTR: ['rules'],
});
return (
<div
// eslint-disable-next-line react/no-danger
dangerouslySetInnerHTML={{ __html: cleanHTML }}
ref={(div) => { this.scheduleDiv = div; }}
/>
);
}
}
export default Schedule;
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