- import React from 'react';
- import PropTypes from 'prop-types';
- 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';
- import { getPointerPosition, fileNameFromURL } from 'mastodon/features/video';
- import { debounce } from 'lodash';
-
- const hex2rgba = (hex, alpha = 1) => {
- const [r, g, b] = hex.match(/\w\w/g).map(x => parseInt(x, 16));
- return `rgba(${r}, ${g}, ${b}, ${alpha})`;
- };
-
- 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,
- };
-
- state = {
- width: this.props.width,
- currentTime: 0,
- buffer: 0,
- duration: null,
- paused: true,
- muted: false,
- volume: 0.5,
- dragging: false,
- };
-
- setPlayerRef = c => {
- this.player = c;
-
- if (this.player) {
- this._setDimensions();
- }
- }
-
- _setDimensions () {
- const width = this.player.offsetWidth;
- const height = this.props.fullscreen ? this.player.offsetHeight : (width / (16/9));
-
- 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;
-
- if (c) {
- this.canvasContext = c.getContext('2d');
- }
- }
-
- componentDidMount () {
- window.addEventListener('scroll', this.handleScroll);
- window.addEventListener('resize', this.handleResize, { passive: true });
- }
-
- componentDidUpdate (prevProps, prevState) {
- if (prevProps.src !== this.props.src || this.state.width !== prevState.width || this.state.height !== prevState.height) {
- this._clear();
- this._draw();
- }
- }
-
- componentWillUnmount () {
- window.removeEventListener('scroll', this.handleScroll);
- window.removeEventListener('resize', this.handleResize);
- }
-
- togglePlay = () => {
- 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.canvas && !this.audioContext) {
- this._initAudioContext();
- }
-
- 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: Math.floor(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.setState({ paused: true }, () => this.audio.pause());
- }
- }, 150, { trailing: true });
-
- handleMouseEnter = () => {
- this.setState({ hovered: true });
- }
-
- handleMouseLeave = () => {
- this.setState({ hovered: false });
- }
-
- _initAudioContext () {
- const context = new AudioContext();
- const analyser = context.createAnalyser();
- const source = context.createMediaElementSource(this.audio);
-
- analyser.smoothingTimeConstant = 0.6;
- analyser.fftSize = 2048;
-
- source.connect(analyser);
- source.connect(context.destination);
-
- this.audioContext = context;
- this.analyser = analyser;
- }
-
- 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(() => {
- this.handleTimeUpdate();
- this._clear();
- this._draw();
-
- if (!this.state.paused) {
- this._renderCanvas();
- }
- });
- }
-
- _clear () {
- this.canvasContext.clearRect(0, 0, this.state.width, this.state.height);
- }
-
- _draw () {
- this.canvasContext.save();
-
- const ticks = this._getTicks(360 * this._getScaleCoefficient(), TICK_SIZE);
-
- ticks.forEach(tick => {
- this._drawTick(tick.x1, tick.y1, tick.x2, tick.y2);
- });
-
- this.canvasContext.restore();
- }
-
- _getRadius () {
- return parseInt(((this.state.height || this.props.height) - (PADDING * this._getScaleCoefficient()) * 2) / 2);
- }
-
- _getScaleCoefficient () {
- return (this.state.height || this.props.height) / 982;
- }
-
- _getTicks (count, size, animationParams = [0, 90]) {
- const radius = this._getRadius();
- const ticks = this._getTickPoints(count);
- const lesser = 200;
- const m = [];
- const bufferLength = this.analyser ? this.analyser.frequencyBinCount : 0;
- const frequencyData = new Uint8Array(bufferLength);
- const allScales = [];
- const scaleCoefficient = this._getScaleCoefficient();
-
- if (this.analyser) {
- this.analyser.getByteFrequencyData(frequencyData);
- }
-
- ticks.forEach((tick, i) => {
- const coef = 1 - i / (ticks.length * 2.5);
-
- let delta = ((frequencyData[i] || 0) - lesser * coef) * scaleCoefficient;
-
- if (delta < 0) {
- delta = 0;
- }
-
- let k;
-
- if (animationParams[0] <= tick.angle && tick.angle <= animationParams[1]) {
- k = radius / (radius - this._getSize(tick.angle, animationParams[0], animationParams[1]) - delta);
- } else {
- k = radius / (radius - (size + delta));
- }
-
- const x1 = tick.x * (radius - size);
- const y1 = tick.y * (radius - size);
- const x2 = x1 * k;
- const y2 = y1 * k;
-
- m.push({ x1, y1, x2, y2 });
-
- if (i < 20) {
- let scale = delta / (200 * scaleCoefficient);
- scale = scale < 1 ? 1 : scale;
- allScales.push(scale);
- }
- });
-
- const scale = allScales.reduce((pv, cv) => pv + cv, 0) / allScales.length;
-
- return m.map(({ x1, y1, x2, y2 }) => ({
- x1: x1,
- y1: y1,
- x2: x2 * scale,
- y2: y2 * scale,
- }));
- }
-
- _getSize (angle, l, r) {
- const scaleCoefficient = this._getScaleCoefficient();
- const maxTickSize = TICK_SIZE * 9 * scaleCoefficient;
- const m = (r - l) / 2;
- const x = (angle - l);
-
- let h;
-
- if (x === m) {
- return maxTickSize;
- }
-
- const d = Math.abs(m - x);
- const v = 40 * Math.sqrt(1 / d);
-
- if (v > maxTickSize) {
- h = maxTickSize;
- } else {
- h = Math.max(TICK_SIZE, v);
- }
-
- return h;
- }
-
- _getTickPoints (count) {
- const PI = 360;
- const coords = [];
- const step = PI / count;
-
- let rad;
-
- for(let deg = 0; deg < PI; deg += step) {
- rad = deg * Math.PI / (PI / 2);
- coords.push({ x: Math.cos(rad), y: -Math.sin(rad), angle: deg });
- }
-
- return coords;
- }
-
- _drawTick (x1, y1, x2, y2) {
- const cx = this._getCX();
- const cy = this._getCY();
-
- const dx1 = Math.ceil(cx + x1);
- const dy1 = Math.ceil(cy + y1);
- const dx2 = Math.ceil(cx + x2);
- const dy2 = Math.ceil(cy + y2);
-
- const gradient = this.canvasContext.createLinearGradient(dx1, dy1, dx2, dy2);
-
- const mainColor = this._getAccentColor();
- const lastColor = hex2rgba(mainColor, 0);
-
- gradient.addColorStop(0, mainColor);
- gradient.addColorStop(0.6, mainColor);
- gradient.addColorStop(1, lastColor);
-
- this.canvasContext.beginPath();
- this.canvasContext.strokeStyle = gradient;
- this.canvasContext.lineWidth = 2;
- this.canvasContext.moveTo(dx1, dy1);
- this.canvasContext.lineTo(dx2, dy2);
- this.canvasContext.stroke();
- }
-
- _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';
- }
-
- render () {
- const { src, intl, alt, editable } = this.props;
- const { paused, muted, volume, currentTime, duration, buffer, dragging } = this.state;
- const progress = (currentTime / duration) * 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}>
- <audio
- src={src}
- ref={this.setAudioRef}
- preload='none'
- onPlay={this.handlePlay}
- onPause={this.handlePause}
- onProgress={this.handleProgress}
- crossOrigin='anonymous'
- />
-
- <canvas
- role='button'
- 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}
- 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() }}
- />
- </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)} 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)} 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: `${volume * 100}%`, backgroundColor: this._getAccentColor() }} />
-
- <span
- className={classNames('video-player__volume__handle')}
- tabIndex='0'
- style={{ left: `${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(this.state.duration || Math.floor(this.props.duration))}</span>
- </span>
- </div>
-
- <div className='video-player__buttons right'>
- <button type='button' title={intl.formatMessage(messages.download)} aria-label={intl.formatMessage(messages.download)} onClick={this.handleDownload}><Icon id='download' fixedWidth /></button>
- </div>
- </div>
- </div>
- </div>
- );
- }
-
- }
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