diff options
Diffstat (limited to 'app/javascript/flavours/glitch/features/audio/index.js')
| -rw-r--r-- | app/javascript/flavours/glitch/features/audio/index.js | 527 |
1 files changed, 527 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/features/audio/index.js b/app/javascript/flavours/glitch/features/audio/index.js new file mode 100644 index 000000000..ac0468f70 --- /dev/null +++ b/app/javascript/flavours/glitch/features/audio/index.js @@ -0,0 +1,527 @@ +import React from 'react'; +import PropTypes from 'prop-types'; +import { defineMessages, injectIntl } from 'react-intl'; +import { formatTime } from 'flavours/glitch/features/video'; +import Icon from 'flavours/glitch/components/icon'; +import classNames from 'classnames'; +import { throttle } from 'lodash'; +import { getPointerPosition, fileNameFromURL } from 'flavours/glitch/features/video'; +import { debounce } from 'lodash'; +import Visualizer from './visualizer'; + +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' }, + download: { id: 'video.download', defaultMessage: 'Download file' }, +}); + +const TICK_SIZE = 10; +const PADDING = 180; + +export default @injectIntl +class Audio extends React.PureComponent { + + static propTypes = { + src: PropTypes.string.isRequired, + alt: PropTypes.string, + poster: PropTypes.string, + duration: PropTypes.number, + width: PropTypes.number, + height: PropTypes.number, + editable: PropTypes.bool, + fullscreen: PropTypes.bool, + intl: PropTypes.object.isRequired, + cacheWidth: PropTypes.func, + backgroundColor: PropTypes.string, + foregroundColor: PropTypes.string, + accentColor: PropTypes.string, + currentTime: PropTypes.number, + autoPlay: PropTypes.bool, + volume: PropTypes.number, + muted: PropTypes.bool, + deployPictureInPicture: PropTypes.func, + }; + + state = { + width: this.props.width, + currentTime: 0, + buffer: 0, + duration: null, + paused: true, + muted: false, + volume: 0.5, + dragging: false, + }; + + constructor (props) { + super(props); + this.visualizer = new Visualizer(TICK_SIZE); + } + + setPlayerRef = c => { + this.player = c; + + if (this.player) { + this._setDimensions(); + } + } + + _pack() { + return { + src: this.props.src, + volume: this.audio.volume, + muted: this.audio.muted, + currentTime: this.audio.currentTime, + poster: this.props.poster, + backgroundColor: this.props.backgroundColor, + foregroundColor: this.props.foregroundColor, + accentColor: this.props.accentColor, + }; + } + + _setDimensions () { + const width = this.player.offsetWidth; + const height = this.props.fullscreen ? this.player.offsetHeight : (width / (16/9)); + + if (width && width != this.state.containerWidth) { + if (this.props.cacheWidth) { + this.props.cacheWidth(width); + } + + this.setState({ width, height }); + } + } + + setSeekRef = c => { + this.seek = c; + } + + setVolumeRef = c => { + this.volume = c; + } + + setAudioRef = c => { + this.audio = c; + + if (this.audio) { + this.setState({ volume: this.audio.volume, muted: this.audio.muted }); + } + } + + setCanvasRef = c => { + this.canvas = c; + + this.visualizer.setCanvas(c); + } + + componentDidMount () { + window.addEventListener('scroll', this.handleScroll); + window.addEventListener('resize', this.handleResize, { passive: true }); + } + + componentDidUpdate (prevProps, prevState) { + if (this.player) { + this._setDimensions(); + } + + if (prevProps.src !== this.props.src || this.state.width !== prevState.width || this.state.height !== prevState.height || prevProps.accentColor !== this.props.accentColor) { + this._clear(); + this._draw(); + } + } + + componentWillUnmount () { + window.removeEventListener('scroll', this.handleScroll); + window.removeEventListener('resize', this.handleResize); + + if (!this.state.paused && this.audio && this.props.deployPictureInPicture) { + this.props.deployPictureInPicture('audio', this._pack()); + } + } + + togglePlay = () => { + if (!this.audioContext) { + this._initAudioContext(); + } + + if (this.state.paused) { + this.setState({ paused: false }, () => this.audio.play()); + } else { + this.setState({ paused: true }, () => this.audio.pause()); + } + } + + handleResize = debounce(() => { + if (this.player) { + this._setDimensions(); + } + }, 250, { + trailing: true, + }); + + handlePlay = () => { + this.setState({ paused: false }); + + if (this.audioContext && this.audioContext.state === 'suspended') { + this.audioContext.resume(); + } + + this._renderCanvas(); + } + + handlePause = () => { + this.setState({ paused: true }); + + if (this.audioContext) { + this.audioContext.suspend(); + } + } + + handleProgress = () => { + const lastTimeRange = this.audio.buffered.length - 1; + + if (lastTimeRange > -1) { + this.setState({ buffer: Math.ceil(this.audio.buffered.end(lastTimeRange) / this.audio.duration * 100) }); + } + } + + toggleMute = () => { + const muted = !this.state.muted; + + this.setState({ muted }, () => { + this.audio.muted = muted; + }); + } + + 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); + + this.handleMouseVolSlide(e); + + e.preventDefault(); + e.stopPropagation(); + } + + 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); + } + + handleMouseDown = e => { + document.addEventListener('mousemove', this.handleMouseMove, true); + document.addEventListener('mouseup', this.handleMouseUp, true); + document.addEventListener('touchmove', this.handleMouseMove, true); + document.addEventListener('touchend', this.handleMouseUp, true); + + this.setState({ dragging: true }); + this.audio.pause(); + this.handleMouseMove(e); + + e.preventDefault(); + e.stopPropagation(); + } + + handleMouseUp = () => { + document.removeEventListener('mousemove', this.handleMouseMove, true); + document.removeEventListener('mouseup', this.handleMouseUp, true); + document.removeEventListener('touchmove', this.handleMouseMove, true); + document.removeEventListener('touchend', this.handleMouseUp, true); + + this.setState({ dragging: false }); + this.audio.play(); + } + + handleMouseMove = throttle(e => { + const { x } = getPointerPosition(this.seek, e); + const currentTime = this.audio.duration * x; + + if (!isNaN(currentTime)) { + this.setState({ currentTime }, () => { + this.audio.currentTime = currentTime; + }); + } + }, 15); + + handleTimeUpdate = () => { + this.setState({ + currentTime: this.audio.currentTime, + duration: this.audio.duration, + }); + } + + handleMouseVolSlide = throttle(e => { + const { x } = getPointerPosition(this.volume, e); + + if(!isNaN(x)) { + this.setState({ volume: x }, () => { + this.audio.volume = x; + }); + } + }, 15); + + handleScroll = throttle(() => { + if (!this.canvas || !this.audio) { + return; + } + + const { top, height } = this.canvas.getBoundingClientRect(); + const inView = (top <= (window.innerHeight || document.documentElement.clientHeight)) && (top + height >= 0); + + if (!this.state.paused && !inView) { + this.audio.pause(); + + if (this.props.deployPictureInPicture) { + this.props.deployPictureInPicture('audio', this._pack()); + } + + this.setState({ paused: true }); + } + }, 150, { trailing: true }); + + handleMouseEnter = () => { + this.setState({ hovered: true }); + } + + handleMouseLeave = () => { + this.setState({ hovered: false }); + } + + handleLoadedData = () => { + const { autoPlay, currentTime, volume, muted } = this.props; + + if (currentTime) { + this.audio.currentTime = currentTime; + } + + if (volume !== undefined) { + this.audio.volume = volume; + } + + if (muted !== undefined) { + this.audio.muted = muted; + } + + if (autoPlay) { + this.togglePlay(); + } + } + + _initAudioContext () { + const AudioContext = window.AudioContext || window.webkitAudioContext; + const context = new AudioContext(); + const source = context.createMediaElementSource(this.audio); + + this.visualizer.setAudioContext(context, source); + source.connect(context.destination); + + this.audioContext = context; + } + + handleDownload = () => { + fetch(this.props.src).then(res => res.blob()).then(blob => { + const element = document.createElement('a'); + const objectURL = URL.createObjectURL(blob); + + element.setAttribute('href', objectURL); + element.setAttribute('download', fileNameFromURL(this.props.src)); + + document.body.appendChild(element); + element.click(); + document.body.removeChild(element); + + URL.revokeObjectURL(objectURL); + }).catch(err => { + console.error(err); + }); + } + + _renderCanvas () { + requestAnimationFrame(() => { + if (!this.audio) return; + + this.handleTimeUpdate(); + this._clear(); + this._draw(); + + if (!this.state.paused) { + this._renderCanvas(); + } + }); + } + + _clear() { + this.visualizer.clear(this.state.width, this.state.height); + } + + _draw() { + this.visualizer.draw(this._getCX(), this._getCY(), this._getAccentColor(), this._getRadius(), this._getScaleCoefficient()); + } + + _getRadius () { + return parseInt(((this.state.height || this.props.height) - (PADDING * this._getScaleCoefficient()) * 2) / 2); + } + + _getScaleCoefficient () { + return (this.state.height || this.props.height) / 982; + } + + _getCX() { + return Math.floor(this.state.width / 2); + } + + _getCY() { + return Math.floor(this._getRadius() + (PADDING * this._getScaleCoefficient())); + } + + _getAccentColor () { + return this.props.accentColor || '#ffffff'; + } + + _getBackgroundColor () { + return this.props.backgroundColor || '#000000'; + } + + _getForegroundColor () { + return this.props.foregroundColor || '#ffffff'; + } + + seekBy (time) { + const currentTime = this.audio.currentTime + time; + + if (!isNaN(currentTime)) { + this.setState({ currentTime }, () => { + this.audio.currentTime = currentTime; + }); + } + } + + handleAudioKeyDown = e => { + // On the audio element or the seek bar, we can safely use the space bar + // for playback control because there are no buttons to press + + if (e.key === ' ') { + e.preventDefault(); + e.stopPropagation(); + this.togglePlay(); + } + } + + handleKeyDown = e => { + switch(e.key) { + case 'k': + e.preventDefault(); + e.stopPropagation(); + this.togglePlay(); + break; + case 'm': + e.preventDefault(); + e.stopPropagation(); + this.toggleMute(); + break; + case 'j': + e.preventDefault(); + e.stopPropagation(); + this.seekBy(-10); + break; + case 'l': + e.preventDefault(); + e.stopPropagation(); + this.seekBy(10); + break; + } + } + + render () { + const { src, intl, alt, editable, autoPlay } = this.props; + const { paused, muted, volume, currentTime, duration, buffer, dragging } = this.state; + const progress = Math.min((currentTime / duration) * 100, 100); + + return ( + <div className={classNames('audio-player', { editable })} ref={this.setPlayerRef} style={{ backgroundColor: this._getBackgroundColor(), color: this._getForegroundColor(), width: '100%', height: this.props.fullscreen ? '100%' : (this.state.height || this.props.height) }} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave} tabIndex='0' onKeyDown={this.handleKeyDown}> + <audio + src={src} + ref={this.setAudioRef} + preload={autoPlay ? 'auto' : 'none'} + onPlay={this.handlePlay} + onPause={this.handlePause} + onProgress={this.handleProgress} + onLoadedData={this.handleLoadedData} + crossOrigin='anonymous' + /> + + <canvas + role='button' + tabIndex='0' + className='audio-player__canvas' + width={this.state.width} + height={this.state.height} + style={{ width: '100%', position: 'absolute', top: 0, left: 0 }} + ref={this.setCanvasRef} + onClick={this.togglePlay} + onKeyDown={this.handleAudioKeyDown} + title={alt} + aria-label={alt} + /> + + <img + src={this.props.poster} + alt='' + width={(this._getRadius() - TICK_SIZE) * 2} + height={(this._getRadius() - TICK_SIZE) * 2} + style={{ position: 'absolute', left: this._getCX(), top: this._getCY(), transform: 'translate(-50%, -50%)', borderRadius: '50%', pointerEvents: 'none' }} + /> + + <div className='video-player__seek' onMouseDown={this.handleMouseDown} ref={this.setSeekRef}> + <div className='video-player__seek__buffer' style={{ width: `${buffer}%` }} /> + <div className='video-player__seek__progress' style={{ width: `${progress}%`, backgroundColor: this._getAccentColor() }} /> + + <span + className={classNames('video-player__seek__handle', { active: dragging })} + tabIndex='0' + style={{ left: `${progress}%`, backgroundColor: this._getAccentColor() }} + onKeyDown={this.handleAudioKeyDown} + /> + </div> + + <div className='video-player__controls active'> + <div className='video-player__buttons-bar'> + <div className='video-player__buttons left'> + <button type='button' title={intl.formatMessage(paused ? messages.play : messages.pause)} aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} className='player-button' onClick={this.togglePlay}><Icon id={paused ? 'play' : 'pause'} fixedWidth /></button> + <button type='button' title={intl.formatMessage(muted ? messages.unmute : messages.mute)} aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} className='player-button' onClick={this.toggleMute}><Icon id={muted ? 'volume-off' : 'volume-up'} fixedWidth /></button> + + <div className={classNames('video-player__volume', { active: this.state.hovered })} ref={this.setVolumeRef} onMouseDown={this.handleVolumeMouseDown}> + <div className='video-player__volume__current' style={{ width: `${volume * 100}%`, backgroundColor: this._getAccentColor() }} /> + + <span + className='video-player__volume__handle' + tabIndex='0' + style={{ left: `${volume * 100}%`, backgroundColor: this._getAccentColor() }} + /> + </div> + + <span className='video-player__time'> + <span className='video-player__time-current'>{formatTime(Math.floor(currentTime))}</span> + <span className='video-player__time-sep'>/</span> + <span className='video-player__time-total'>{formatTime(Math.floor(this.state.duration || this.props.duration))}</span> + </span> + </div> + + <div className='video-player__buttons right'> + <a title={intl.formatMessage(messages.download)} aria-label={intl.formatMessage(messages.download)} className='video-player__download__icon player-button' href={this.props.src} download> + <Icon id={'download'} fixedWidth /> + </a> + </div> + </div> + </div> + </div> + ); + } + +} |