A Pen by Dhilip kumar on CodePen.
Created
May 30, 2019 11:53
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| <div id="app"> | |
| </div> |
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| const {React} = window; | |
| const {ReactDOM} = window; | |
| const styleRipple = { | |
| position: 'relative', | |
| overflow: 'hidden' | |
| }; | |
| const styleRippleContainer = { | |
| position: 'absolute', | |
| top: '0', | |
| right: '0', | |
| bottom: '0', | |
| left: '0' | |
| } | |
| const styleSpan = { | |
| transform: 'scale(0)', | |
| borderRadius: '100%', | |
| position: 'absolute', | |
| opacity: '0.75', | |
| backgroundColor: '#ffffff', | |
| animation: 'ripple 850ms' | |
| } | |
| class Ripple extends React.Component { | |
| initializeState = () => { | |
| return { | |
| spanStyles: {}, | |
| count: 0 | |
| } | |
| } | |
| state = this.initializeState(); | |
| /* Debounce Code to call the Ripple removing function */ | |
| callCleanUp = (cleanup, delay) => { | |
| return function() { | |
| clearTimeout(this.bounce); | |
| this.bounce = setTimeout(() => { | |
| cleanup(); | |
| }, delay); | |
| } | |
| } | |
| showRipple = (e) => { | |
| const rippleContainer = e.currentTarget; | |
| const size = rippleContainer.offsetWidth; | |
| const pos = rippleContainer.getBoundingClientRect(); | |
| const x = e.pageX - pos.x - (size / 2); | |
| const y = e.pageY - pos.y - (size / 2); | |
| const spanStyles = { top: y + 'px', left: x + 'px', height: size + 'px', width: size + 'px' }; | |
| const count = this.state.count + 1; | |
| this.setState({ | |
| spanStyles: {...this.state.spanStyles, [count] : spanStyles}, | |
| count: count | |
| }); | |
| } | |
| cleanUp = () =>{ | |
| const initialState = this.initializeState(); | |
| this.setState({ ...initialState }); | |
| } | |
| renderRippleSpan = () => { | |
| const {showRipple = false, spanStyles = {}} = this.state; | |
| const spanArray = Object.keys(spanStyles); | |
| if (spanArray && spanArray.length > 0) { | |
| return ( | |
| spanArray.map((key, index) => { | |
| return <span key={'spanCount_' + index} className="" style={{ ...spanStyles[key]}}></span> | |
| }) | |
| ) | |
| } else { | |
| return null; | |
| } | |
| } | |
| render() { | |
| const {children= null, classes = "", onClickHandler = null} = this.props; | |
| return ( | |
| <div ref="targetElement" className={'ripple ' + classes} onClick={onClickHandler}> | |
| {children} | |
| <div className="rippleContainer" onMouseDown={this.showRipple} onMouseUp={this.callCleanUp(this.cleanUp, 2000)}> | |
| {this.renderRippleSpan()} | |
| </div> | |
| </div> | |
| ); | |
| } | |
| } | |
| const App = ( | |
| <div className="center"> | |
| <h1 className="demo"></h1> | |
| <Ripple classes="btn">Click Me</Ripple> | |
| </div> | |
| ); | |
| ReactDOM.render( | |
| App, | |
| document.getElementById("app") | |
| ); | |
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| <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.7.0/umd/react.production.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.7.0/umd/react-dom.production.min.js"></script> |
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| .btn { | |
| margin: 50px auto; | |
| border-radius: 25px; | |
| background-color: #5300e8; | |
| box-shadow: 0 2px 4px 0 #888888; | |
| display: inline-block; | |
| padding: 15px 50px; | |
| color: #ffffff; | |
| } | |
| .center { | |
| text-align: center | |
| } | |
| /* ripple */ | |
| .ripple { | |
| position: relative; | |
| overflow: hidden; | |
| } | |
| .ripple .rippleContainer { | |
| position: absolute; | |
| top: 0; | |
| right: 0; | |
| bottom: 0; | |
| left: 0; | |
| } | |
| .ripple .rippleContainer span { | |
| transform: scale(0); | |
| border-radius: 100%; | |
| position: absolute; | |
| opacity: 0.75; | |
| background-color: #ffffff; | |
| animation: ripple 850ms; | |
| } | |
| @keyframes ripple { | |
| to { | |
| opacity: 0; | |
| transform: scale(2); | |
| } | |
| } |
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