53 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			53 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import React from 'react';
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import PropTypes from 'prop-types';
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import detectPassiveEvents 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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  };
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  scrollTop () {
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    const scrollable = 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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    this.node.addEventListener('wheel', this.handleWheel,  detectPassiveEvents.hasSupport ? { passive: true } : false);
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  }
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  componentWillUnmount () {
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    this.node.removeEventListener('wheel', this.handleWheel);
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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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