68 lines
1.9 KiB
JavaScript
68 lines
1.9 KiB
JavaScript
import React from 'react';
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import ReactDOM from 'react-dom';
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import style from './style.scss';
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class Ripple extends React.Component {
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static propTypes = {
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centered: React.PropTypes.bool,
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className: React.PropTypes.string,
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loading: React.PropTypes.bool,
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spread: React.PropTypes.number
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};
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static defaultProps = {
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centered: false,
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className: '',
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loading: false,
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spread: 2
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};
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state = {
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active: false,
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restarting: false,
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top: null,
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left: null,
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width: null
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};
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start = ({ pageX, pageY }) => {
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document.addEventListener('mouseup', this.handleEnd);
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const {top, left, width} = this._getDescriptor(pageX, pageY);
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this.setState({active: false, restarting: true, width: 0}, () => {
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this.refs.ripple.offsetWidth; //eslint-disable-line no-unused-expressions
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this.setState({active: true, restarting: false, top: top, left: left, width: width});
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});
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};
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handleEnd = () => {
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document.removeEventListener('mouseup', this.handleEnd);
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this.setState({active: false});
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};
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_getDescriptor (pageX, pageY) {
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let { left, top, height, width } = ReactDOM.findDOMNode(this).getBoundingClientRect();
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return {
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left: this.props.centered ? width / 2 : pageX - left,
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top: this.props.centered ? height / 2 : pageY - top,
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width: width * this.props.spread
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};
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}
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render () {
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let { left, top, width } = this.state;
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let rippleStyle = {left: left, top: top, width: width, height: width};
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let className = style[this.props.loading ? 'loading' : 'normal'];
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if (this.state.active) className += ` ${style.active}`;
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if (this.state.restarting) className += ` ${style.restarting}`;
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if (this.props.className) className += ` ${this.props.className}`;
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return (
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<span data-react-toolbox='ripple' className={style.wrapper}>
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<span ref="ripple" role='ripple' className={className} style={rippleStyle} />
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</span>
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);
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}
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}
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export default Ripple;
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