Add audio player (#11644)
Eugen Rochko
5 years ago
committed by
GitHub
parent
73ca0bb925
commit
4190e31626
@ -0,0 +1,219 @@
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import React from 'react';
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import PropTypes from 'prop-types';
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import WaveSurfer from 'wavesurfer.js';
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import { defineMessages, injectIntl } from 'react-intl';
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import { formatTime } from 'mastodon/features/video';
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import Icon from 'mastodon/components/icon';
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import classNames from 'classnames';
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import { throttle } from 'lodash';
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const messages = defineMessages({
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play: { id: 'video.play', defaultMessage: 'Play' },
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pause: { id: 'video.pause', defaultMessage: 'Pause' },
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mute: { id: 'video.mute', defaultMessage: 'Mute sound' },
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unmute: { id: 'video.unmute', defaultMessage: 'Unmute sound' },
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});
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const arrayOf = (length, fill) => (new Array(length)).fill(fill);
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export default @injectIntl
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class Audio extends React.PureComponent {
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static propTypes = {
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src: PropTypes.string.isRequired,
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alt: PropTypes.string,
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duration: PropTypes.number,
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height: PropTypes.number,
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preload: PropTypes.bool,
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editable: PropTypes.bool,
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intl: PropTypes.object.isRequired,
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};
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state = {
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currentTime: 0,
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duration: null,
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paused: true,
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muted: false,
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volume: 0.5,
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};
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// hard coded in components.scss
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// 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 => {
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const offset = v * this.volWidth + this.volOffset;
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return (offset > 110) ? 110 : offset;
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}
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setVolumeRef = c => {
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this.volume = c;
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}
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setWaveformRef = c => {
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this.waveform = c;
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}
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componentDidMount () {
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if (this.waveform) {
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this._updateWaveform();
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}
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}
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componentDidUpdate (prevProps) {
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if (this.waveform && prevProps.src !== this.props.src) {
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this._updateWaveform();
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}
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}
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componentWillUnmount () {
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if (this.wavesurfer) {
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this.wavesurfer.destroy();
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this.wavesurfer = null;
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}
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}
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_updateWaveform () {
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const { src, height, duration, preload } = this.props;
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const progressColor = window.getComputedStyle(document.querySelector('.audio-player__progress-placeholder')).getPropertyValue('background-color');
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const waveColor = window.getComputedStyle(document.querySelector('.audio-player__wave-placeholder')).getPropertyValue('background-color');
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if (this.wavesurfer) {
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this.wavesurfer.destroy();
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}
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const wavesurfer = WaveSurfer.create({
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container: this.waveform,
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height,
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barWidth: 3,
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cursorWidth: 0,
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progressColor,
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waveColor,
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forceDecode: true,
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});
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wavesurfer.setVolume(this.state.volume);
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if (preload) {
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wavesurfer.load(src);
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} else {
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wavesurfer.load(src, arrayOf(1, 0.5), null, duration);
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}
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wavesurfer.on('ready', () => this.setState({ duration: Math.floor(wavesurfer.getDuration()) }));
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wavesurfer.on('audioprocess', () => this.setState({ currentTime: Math.floor(wavesurfer.getCurrentTime()) }));
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wavesurfer.on('pause', () => this.setState({ paused: true }));
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wavesurfer.on('play', () => this.setState({ paused: false }));
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wavesurfer.on('volume', volume => this.setState({ volume }));
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wavesurfer.on('mute', muted => this.setState({ muted }));
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this.wavesurfer = wavesurfer;
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}
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togglePlay = () => {
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if (this.state.paused) {
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if (!this.props.preload) {
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this.wavesurfer.createBackend();
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this.wavesurfer.createPeakCache();
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this.wavesurfer.load(this.props.src);
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}
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this.wavesurfer.play();
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} else {
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this.wavesurfer.pause();
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}
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}
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toggleMute = () => {
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this.wavesurfer.setMute(!this.state.muted);
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}
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handleVolumeMouseDown = e => {
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document.addEventListener('mousemove', this.handleMouseVolSlide, true);
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document.addEventListener('mouseup', this.handleVolumeMouseUp, true);
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document.addEventListener('touchmove', this.handleMouseVolSlide, true);
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document.addEventListener('touchend', this.handleVolumeMouseUp, true);
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this.handleMouseVolSlide(e);
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e.preventDefault();
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e.stopPropagation();
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}
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handleVolumeMouseUp = () => {
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document.removeEventListener('mousemove', this.handleMouseVolSlide, true);
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document.removeEventListener('mouseup', this.handleVolumeMouseUp, true);
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document.removeEventListener('touchmove', this.handleMouseVolSlide, true);
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document.removeEventListener('touchend', this.handleVolumeMouseUp, true);
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}
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handleMouseVolSlide = throttle(e => {
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const rect = this.volume.getBoundingClientRect();
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const x = (e.clientX - rect.left) / this.volWidth; // x position within the element.
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if(!isNaN(x)) {
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let slideamt = x;
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if (x > 1) {
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slideamt = 1;
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} else if(x < 0) {
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slideamt = 0;
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}
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this.wavesurfer.setVolume(slideamt);
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}
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}, 60);
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render () {
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const { height, intl, alt, editable } = this.props;
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const { paused, muted, volume, currentTime } = this.state;
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const volumeWidth = muted ? 0 : volume * this.volWidth;
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const volumeHandleLoc = muted ? this.volHandleOffset(0) : this.volHandleOffset(volume);
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return (
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<div className={classNames('audio-player', { editable })}>
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<div className='audio-player__progress-placeholder' style={{ display: 'none' }} />
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<div className='audio-player__wave-placeholder' style={{ display: 'none' }} />
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<div
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className='audio-player__waveform'
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aria-label={alt}
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title={alt}
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style={{ height }}
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ref={this.setWaveformRef}
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/>
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<div className='video-player__controls active'>
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<div className='video-player__buttons-bar'>
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<div className='video-player__buttons left'>
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<button type='button' aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay}><Icon id={paused ? 'play' : 'pause'} fixedWidth /></button>
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<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}>
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<div className='video-player__volume__current' style={{ width: `${volumeWidth}px` }} />
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<span
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className={classNames('video-player__volume__handle')}
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tabIndex='0'
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style={{ left: `${volumeHandleLoc}px` }}
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/>
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</div>
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<span>
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<span className='video-player__time-current'>{formatTime(currentTime)}</span>
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<span className='video-player__time-sep'>/</span>
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<span className='video-player__time-total'>{formatTime(this.state.duration || Math.floor(this.props.duration))}</span>
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</span>
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</div>
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</div>
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</div>
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</div>
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);
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}
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}
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