113 lines
2.2 KiB
Plaintext
113 lines
2.2 KiB
Plaintext
// @flow weak
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import React from 'react';
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import classNames from 'classnames';
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import Transition from 'react-transition-group/Transition';
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type ProvidedProps = {
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classes: Object,
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};
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export type Props = {
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/**
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* Useful to extend the style applied to components.
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*/
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classes?: Object,
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/**
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* @ignore
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*/
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className?: string,
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/**
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* If `true`, the ripple pulsates, typically indicating the keyboard focus state of an element.
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*/
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pulsate?: boolean,
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/**
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* Diameter of the ripple.
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*/
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rippleSize: number,
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/**
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* Horizontal position of the ripple center.
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*/
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rippleX: number,
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/**
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* Vertical position of the ripple center.
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*/
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rippleY: number,
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};
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type State = { rippleVisible: boolean, rippleLeaving: boolean };
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/**
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* @ignore - internal component.
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*/
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class Ripple extends React.Component<ProvidedProps & Props, State> {
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static defaultProps = {
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pulsate: false,
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};
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state = {
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rippleVisible: false,
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rippleLeaving: false,
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};
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getRippleStyles = props => {
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const { rippleSize, rippleX, rippleY } = props;
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return {
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width: rippleSize,
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height: rippleSize,
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top: -(rippleSize / 2) + rippleY,
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left: -(rippleSize / 2) + rippleX,
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};
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};
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handleEnter = () => {
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this.setState({
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rippleVisible: true,
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});
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};
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handleExit = () => {
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this.setState({
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rippleLeaving: true,
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});
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};
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render() {
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const {
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classes,
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className: classNameProp,
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pulsate,
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rippleX,
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rippleY,
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rippleSize,
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...other
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} = this.props;
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const { rippleVisible, rippleLeaving } = this.state;
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const className = classNames(
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classes.wrapper,
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{
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[classes.wrapperLeaving]: rippleLeaving,
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[classes.wrapperPulsating]: pulsate,
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},
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classNameProp,
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);
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const rippleClassName = classNames(classes.ripple, {
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[classes.rippleVisible]: rippleVisible,
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[classes.rippleFast]: pulsate,
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});
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return (
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<Transition onEnter={this.handleEnter} onExit={this.handleExit} {...other}>
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<span className={className}>
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<span className={rippleClassName} style={this.getRippleStyles(this.props)} />
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</span>
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</Transition>
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);
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}
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}
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export default Ripple;
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