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import PropTypes from 'prop-types';
import React from 'react';
import bindAll from 'lodash.bindall';
import PlayButtonComponent from '../components/play-button/play-button.jsx';
class PlayButton extends React.Component {
constructor (props) {
super(props);
bindAll(this, [
'handleClick',
'handleMouseDown',
'handleMouseEnter',
'handleMouseLeave',
'handleTouchStart',
'setButtonRef'
]);
this.state = {
touchStarted: false
};
}
getDerivedStateFromProps (props, state) {
// if touchStarted is true and it's not playing, the sound must have ended.
// reset the touchStarted state to allow the sound to be replayed
if (state.touchStarted && !props.isPlaying) {
return {
touchStarted: false
};
}
return null; // nothing changed
}
componentDidMount () {
// Touch start
this.buttonRef.addEventListener('touchstart', this.handleTouchStart);
}
componentWillUnmount () {
this.buttonRef.removeEventListener('touchstart', this.handleTouchStart);
}
handleClick (e) {
// stop the click from propagating out of the button
e.stopPropagation();
}
handleMouseDown (e) {
// prevent default (focus) on mouseDown
e.preventDefault();
if (this.props.isPlaying) {
// stop sound and reset touch state
this.props.onStop();
if (this.state.touchstarted) this.setState({touchStarted: false});
} else {
this.props.onPlay();
if (this.state.touchstarted) {
// started on touch, but now clicked mouse
this.setState({touchStarted: false});
}
}
}
handleTouchStart (e) {
if (this.props.isPlaying) {
// If playing, stop sound, and reset touch state
e.preventDefault();
this.setState({touchStarted: false});
this.props.onStop();
} else {
// otherwise start playing, and set touch state
e.preventDefault();
this.setState({touchStarted: true});
this.props.onPlay();
}
}
handleMouseEnter (e) {
// start the sound if it's not already playing
e.preventDefault();
if (!this.props.isPlaying) {
this.props.onPlay();
}
}
handleMouseLeave () {
// stop the sound unless it was started by touch
if (this.props.isPlaying && !this.state.touchstarted) {
this.props.onStop();
}
}
setButtonRef (ref) {
this.buttonRef = ref;
}
render () {
const {
className,
isPlaying,
onPlay, // eslint-disable-line no-unused-vars
onStop // eslint-disable-line no-unused-vars
} = this.props;
return (
<PlayButtonComponent
className={className}
isPlaying={isPlaying}
onClick={this.handleClick}
onMouseDown={this.handleMouseDown}
onMouseEnter={this.handleMouseEnter}
onMouseLeave={this.handleMouseLeave}
setButtonRef={this.setButtonRef}
/>
);
}
}
PlayButton.propTypes = {
className: PropTypes.string,
isPlaying: PropTypes.bool.isRequired,
onPlay: PropTypes.func.isRequired,
onStop: PropTypes.func.isRequired
};
export default PlayButton;
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