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mastodon/app/javascript/flavours/glitch/components/column.js

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import React from 'react';
import PropTypes from 'prop-types';
import detectPassiveEvents from 'detect-passive-events';
2017-12-04 07:26:40 +00:00
import { scrollTop } from 'flavours/glitch/util/scroll';
export default class Column extends React.PureComponent {
static propTypes = {
children: PropTypes.node,
extraClasses: PropTypes.string,
name: PropTypes.string,
};
scrollTop () {
const scrollable = this.node.querySelector('.scrollable');
if (!scrollable) {
return;
}
this._interruptScrollAnimation = scrollTop(scrollable);
}
handleWheel = () => {
if (typeof this._interruptScrollAnimation !== 'function') {
return;
}
this._interruptScrollAnimation();
}
setRef = c => {
this.node = c;
}
componentDidMount () {
this.node.addEventListener('wheel', this.handleWheel, detectPassiveEvents.hasSupport ? { passive: true } : false);
}
componentWillUnmount () {
this.node.removeEventListener('wheel', this.handleWheel);
}
render () {
const { children, extraClasses, name } = this.props;
return (
<div role='region' data-column={name} className={`column ${extraClasses || ''}`} ref={this.setRef}>
{children}
</div>
);
}
}