forked from treehouse/mastodon
63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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import { supportsPassiveEvents } from 'detect-passive-events';
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import { scrollTop } from '../scroll';
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export default class Column extends React.PureComponent {
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static propTypes = {
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children: PropTypes.node,
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label: PropTypes.string,
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bindToDocument: PropTypes.bool,
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};
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scrollTop () {
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const scrollable = this.props.bindToDocument ? document.scrollingElement : this.node.querySelector('.scrollable');
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if (!scrollable) {
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return;
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}
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this._interruptScrollAnimation = scrollTop(scrollable);
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}
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handleWheel = () => {
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if (typeof this._interruptScrollAnimation !== 'function') {
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return;
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}
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this._interruptScrollAnimation();
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}
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setRef = c => {
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this.node = c;
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}
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componentDidMount () {
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if (this.props.bindToDocument) {
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document.addEventListener('wheel', this.handleWheel, supportsPassiveEvents ? { passive: true } : false);
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} else {
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this.node.addEventListener('wheel', this.handleWheel, supportsPassiveEvents ? { passive: true } : false);
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}
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}
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componentWillUnmount () {
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if (this.props.bindToDocument) {
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document.removeEventListener('wheel', this.handleWheel);
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} else {
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this.node.removeEventListener('wheel', this.handleWheel);
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}
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}
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render () {
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const { label, children } = this.props;
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return (
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<div role='region' aria-label={label} className='column' ref={this.setRef}>
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{children}
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</div>
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);
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}
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}
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