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George Gillams
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Feb 7, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| import React, { Component } from 'react'; | ||
| import PropTypes from 'prop-types'; | ||
| import { cssModules } from '../helpers/cssModules'; | ||
| import STYLES from './blur-effect.scss'; | ||
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| const getClassName = cssModules(STYLES); | ||
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| class BlurEffectView extends Component { | ||
| constructor(props) { | ||
| super(props); | ||
| this.myRef = React.createRef(); | ||
| this.mainScrollElement; | ||
| this.mainScrollElementClone; | ||
| } | ||
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|
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| static propTypes = { | ||
| className: PropTypes.string, | ||
| }; | ||
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| static defaultProps = { | ||
| className: null, | ||
| }; | ||
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| adjustCloneScroll = () => { | ||
| if (!this.mainScrollElement || !this.mainScrollElementClone) { | ||
| return; | ||
| } | ||
| const yValue = this.mainScrollElement.offsetTop - window.pageYOffset; | ||
| this.mainScrollElementClone.style.transform = `translatey(${yValue}px)`; | ||
| }; | ||
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| recreateBlurClone = () => { | ||
| if (!this.mainScrollElement || !this.myRef || !this.myRef.current) { | ||
| return; | ||
| } | ||
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| const newMainScrollElementClone = this.mainScrollElement.cloneNode(true); | ||
| newMainScrollElementClone.style.filter = 'blur(10px)'; | ||
| newMainScrollElementClone.id += `_clone${Math.random(0, 10)}`; | ||
| if (this.mainScrollElementClone) { | ||
| this.myRef.current.removeChild(this.mainScrollElementClone); | ||
| } | ||
| this.mainScrollElementClone = newMainScrollElementClone; | ||
| this.myRef.current.append(this.mainScrollElementClone); | ||
| this.adjustCloneScroll(); | ||
| }; | ||
|
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| componentDidMount() { | ||
| this.mainScrollElement = document.getElementById('mainScrollView'); | ||
| this.recreateBlurClone(); | ||
| this.interval = setInterval(this.recreateBlurClone, 2000); | ||
| window.addEventListener('scroll', e => { | ||
| this.adjustCloneScroll(); | ||
| }); | ||
| } | ||
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| render() { | ||
| const { className, ...rest } = this.props; | ||
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| return ( | ||
| <div | ||
| ref={this.myRef} | ||
| aria-hidden="true" | ||
| className={getClassName('blur-effect__outer', className)} | ||
| /> | ||
| ); | ||
| } | ||
| } | ||
|
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| export default BlurEffectView; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| @import '~bpk-mixins'; | ||
| @import '../Tokens/common'; | ||
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| .blur-effect { | ||
| &__outer { | ||
| position: absolute; | ||
| left: 0; | ||
| top: 0; | ||
| width: 100%; | ||
| height: 100%; | ||
| z-index: -1; | ||
| overflow: hidden; | ||
| pointer-events: none; | ||
| } | ||
| } |
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