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import React from 'react'; | ||
import PropTypes from 'prop-types'; | ||
import WaveSurfer from 'wavesurfer.js'; | ||
import { defineMessages, injectIntl } from 'react-intl'; | ||
import { formatTime } from 'mastodon/features/video'; | ||
import Icon from 'mastodon/components/icon'; | ||
import classNames from 'classnames'; | ||
import { throttle } from 'lodash'; | ||
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const messages = defineMessages({ | ||
play: { id: 'video.play', defaultMessage: 'Play' }, | ||
pause: { id: 'video.pause', defaultMessage: 'Pause' }, | ||
mute: { id: 'video.mute', defaultMessage: 'Mute sound' }, | ||
unmute: { id: 'video.unmute', defaultMessage: 'Unmute sound' }, | ||
}); | ||
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const arrayOf = (length, fill) => (new Array(length)).fill(fill); | ||
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export default @injectIntl | ||
class Audio extends React.PureComponent { | ||
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static propTypes = { | ||
src: PropTypes.string.isRequired, | ||
alt: PropTypes.string, | ||
duration: PropTypes.number, | ||
height: PropTypes.number, | ||
preload: PropTypes.bool, | ||
editable: PropTypes.bool, | ||
intl: PropTypes.object.isRequired, | ||
}; | ||
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state = { | ||
currentTime: 0, | ||
duration: null, | ||
paused: true, | ||
muted: false, | ||
volume: 0.5, | ||
}; | ||
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// hard coded in components.scss | ||
// any way to get ::before values programatically? | ||
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volWidth = 50; | ||
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volOffset = 70; | ||
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volHandleOffset = v => { | ||
const offset = v * this.volWidth + this.volOffset; | ||
return (offset > 110) ? 110 : offset; | ||
} | ||
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setVolumeRef = c => { | ||
this.volume = c; | ||
} | ||
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setWaveformRef = c => { | ||
this.waveform = c; | ||
} | ||
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componentDidMount () { | ||
if (this.waveform) { | ||
this._updateWaveform(); | ||
} | ||
} | ||
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componentDidUpdate (prevProps) { | ||
if (this.waveform && prevProps.src !== this.props.src) { | ||
this._updateWaveform(); | ||
} | ||
} | ||
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componentWillUnmount () { | ||
if (this.wavesurfer) { | ||
this.wavesurfer.destroy(); | ||
this.wavesurfer = null; | ||
} | ||
} | ||
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_updateWaveform () { | ||
const { src, height, duration, preload } = this.props; | ||
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const progressColor = window.getComputedStyle(document.querySelector('.audio-player__progress-placeholder')).getPropertyValue('background-color'); | ||
const waveColor = window.getComputedStyle(document.querySelector('.audio-player__wave-placeholder')).getPropertyValue('background-color'); | ||
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if (this.wavesurfer) { | ||
this.wavesurfer.destroy(); | ||
} | ||
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const wavesurfer = WaveSurfer.create({ | ||
container: this.waveform, | ||
height, | ||
barWidth: 3, | ||
cursorWidth: 0, | ||
progressColor, | ||
waveColor, | ||
forceDecode: true, | ||
}); | ||
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wavesurfer.setVolume(this.state.volume); | ||
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if (preload) { | ||
wavesurfer.load(src); | ||
} else { | ||
wavesurfer.load(src, arrayOf(1, 0.5), null, duration); | ||
} | ||
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wavesurfer.on('ready', () => this.setState({ duration: Math.floor(wavesurfer.getDuration()) })); | ||
wavesurfer.on('audioprocess', () => this.setState({ currentTime: Math.floor(wavesurfer.getCurrentTime()) })); | ||
wavesurfer.on('pause', () => this.setState({ paused: true })); | ||
wavesurfer.on('play', () => this.setState({ paused: false })); | ||
wavesurfer.on('volume', volume => this.setState({ volume })); | ||
wavesurfer.on('mute', muted => this.setState({ muted })); | ||
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this.wavesurfer = wavesurfer; | ||
} | ||
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togglePlay = () => { | ||
if (this.state.paused) { | ||
if (!this.props.preload) { | ||
this.wavesurfer.createBackend(); | ||
this.wavesurfer.createPeakCache(); | ||
this.wavesurfer.load(this.props.src); | ||
} | ||
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this.wavesurfer.play(); | ||
} else { | ||
this.wavesurfer.pause(); | ||
} | ||
} | ||
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toggleMute = () => { | ||
this.wavesurfer.setMute(!this.state.muted); | ||
} | ||
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handleVolumeMouseDown = e => { | ||
document.addEventListener('mousemove', this.handleMouseVolSlide, true); | ||
document.addEventListener('mouseup', this.handleVolumeMouseUp, true); | ||
document.addEventListener('touchmove', this.handleMouseVolSlide, true); | ||
document.addEventListener('touchend', this.handleVolumeMouseUp, true); | ||
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this.handleMouseVolSlide(e); | ||
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e.preventDefault(); | ||
e.stopPropagation(); | ||
} | ||
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handleVolumeMouseUp = () => { | ||
document.removeEventListener('mousemove', this.handleMouseVolSlide, true); | ||
document.removeEventListener('mouseup', this.handleVolumeMouseUp, true); | ||
document.removeEventListener('touchmove', this.handleMouseVolSlide, true); | ||
document.removeEventListener('touchend', this.handleVolumeMouseUp, true); | ||
} | ||
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handleMouseVolSlide = throttle(e => { | ||
const rect = this.volume.getBoundingClientRect(); | ||
const x = (e.clientX - rect.left) / this.volWidth; // x position within the element. | ||
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if(!isNaN(x)) { | ||
let slideamt = x; | ||
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if (x > 1) { | ||
slideamt = 1; | ||
} else if(x < 0) { | ||
slideamt = 0; | ||
} | ||
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this.wavesurfer.setVolume(slideamt); | ||
} | ||
}, 60); | ||
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render () { | ||
const { height, intl, alt, editable } = this.props; | ||
const { paused, muted, volume, currentTime } = this.state; | ||
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const volumeWidth = muted ? 0 : volume * this.volWidth; | ||
const volumeHandleLoc = muted ? this.volHandleOffset(0) : this.volHandleOffset(volume); | ||
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return ( | ||
<div className={classNames('audio-player', { editable })}> | ||
<div className='audio-player__progress-placeholder' style={{ display: 'none' }} /> | ||
<div className='audio-player__wave-placeholder' style={{ display: 'none' }} /> | ||
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<div | ||
className='audio-player__waveform' | ||
aria-label={alt} | ||
title={alt} | ||
style={{ height }} | ||
ref={this.setWaveformRef} | ||
/> | ||
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<div className='video-player__controls active'> | ||
<div className='video-player__buttons-bar'> | ||
<div className='video-player__buttons left'> | ||
<button type='button' aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay}><Icon id={paused ? 'play' : 'pause'} fixedWidth /></button> | ||
<button type='button' aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><Icon id={muted ? 'volume-off' : 'volume-up'} fixedWidth /></button> | ||
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<div className='video-player__volume' onMouseDown={this.handleVolumeMouseDown} ref={this.setVolumeRef}> | ||
<div className='video-player__volume__current' style={{ width: `${volumeWidth}px` }} /> | ||
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<span | ||
className={classNames('video-player__volume__handle')} | ||
tabIndex='0' | ||
style={{ left: `${volumeHandleLoc}px` }} | ||
/> | ||
</div> | ||
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<span> | ||
<span className='video-player__time-current'>{formatTime(currentTime)}</span> | ||
<span className='video-player__time-sep'>/</span> | ||
<span className='video-player__time-total'>{formatTime(this.state.duration || Math.floor(this.props.duration))}</span> | ||
</span> | ||
</div> | ||
</div> | ||
</div> | ||
</div> | ||
); | ||
} | ||
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} |
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