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538 lines
15 KiB
JavaScript
538 lines
15 KiB
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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import { defineMessages, injectIntl } from 'react-intl';
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import { formatTime } from 'flavours/glitch/features/video';
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import Icon from 'flavours/glitch/components/icon';
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import classNames from 'classnames';
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import { throttle } from 'lodash';
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import { getPointerPosition, fileNameFromURL } from 'flavours/glitch/features/video';
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import { debounce } from 'lodash';
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const hex2rgba = (hex, alpha = 1) => {
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const [r, g, b] = hex.match(/\w\w/g).map(x => parseInt(x, 16));
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return `rgba(${r}, ${g}, ${b}, ${alpha})`;
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};
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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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download: { id: 'video.download', defaultMessage: 'Download file' },
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});
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const TICK_SIZE = 10;
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const PADDING = 180;
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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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poster: PropTypes.string,
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duration: PropTypes.number,
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width: PropTypes.number,
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height: PropTypes.number,
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editable: PropTypes.bool,
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fullscreen: PropTypes.bool,
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intl: PropTypes.object.isRequired,
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cacheWidth: PropTypes.func,
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backgroundColor: PropTypes.string,
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foregroundColor: PropTypes.string,
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accentColor: PropTypes.string,
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};
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state = {
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width: this.props.width,
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currentTime: 0,
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buffer: 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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dragging: false,
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};
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setPlayerRef = c => {
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this.player = c;
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if (this.player) {
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this._setDimensions();
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}
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}
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_setDimensions () {
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const width = this.player.offsetWidth;
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const height = this.props.fullscreen ? this.player.offsetHeight : (width / (16/9));
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if (this.props.cacheWidth) {
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this.props.cacheWidth(width);
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}
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this.setState({ width, height });
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}
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setSeekRef = c => {
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this.seek = c;
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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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setAudioRef = c => {
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this.audio = c;
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if (this.audio) {
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this.setState({ volume: this.audio.volume, muted: this.audio.muted });
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}
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}
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setCanvasRef = c => {
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this.canvas = c;
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if (c) {
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this.canvasContext = c.getContext('2d');
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}
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}
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componentDidMount () {
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window.addEventListener('resize', this.handleResize, { passive: true });
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}
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componentDidUpdate (prevProps, prevState) {
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if (prevProps.src !== this.props.src || this.state.width !== prevState.width || this.state.height !== prevState.height) {
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this._clear();
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this._draw();
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}
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}
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componentWillUnmount () {
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window.removeEventListener('resize', this.handleResize);
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}
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togglePlay = () => {
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if (this.state.paused) {
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this.setState({ paused: false }, () => this.audio.play());
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} else {
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this.setState({ paused: true }, () => this.audio.pause());
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}
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}
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handleResize = debounce(() => {
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if (this.player) {
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this._setDimensions();
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}
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}, 250, {
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trailing: true,
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});
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handlePlay = () => {
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this.setState({ paused: false });
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if (this.canvas && !this.audioContext) {
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this._initAudioContext();
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}
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if (this.audioContext && this.audioContext.state === 'suspended') {
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this.audioContext.resume();
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}
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this._renderCanvas();
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}
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handlePause = () => {
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this.setState({ paused: true });
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if (this.audioContext) {
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this.audioContext.suspend();
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}
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}
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handleProgress = () => {
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const lastTimeRange = this.audio.buffered.length - 1;
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if (lastTimeRange > -1) {
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this.setState({ buffer: Math.ceil(this.audio.buffered.end(lastTimeRange) / this.audio.duration * 100) });
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}
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}
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toggleMute = () => {
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const muted = !this.state.muted;
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this.setState({ muted }, () => {
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this.audio.muted = muted;
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});
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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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handleMouseDown = e => {
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document.addEventListener('mousemove', this.handleMouseMove, true);
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document.addEventListener('mouseup', this.handleMouseUp, true);
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document.addEventListener('touchmove', this.handleMouseMove, true);
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document.addEventListener('touchend', this.handleMouseUp, true);
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this.setState({ dragging: true });
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this.audio.pause();
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this.handleMouseMove(e);
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e.preventDefault();
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e.stopPropagation();
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}
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handleMouseUp = () => {
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document.removeEventListener('mousemove', this.handleMouseMove, true);
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document.removeEventListener('mouseup', this.handleMouseUp, true);
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document.removeEventListener('touchmove', this.handleMouseMove, true);
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document.removeEventListener('touchend', this.handleMouseUp, true);
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this.setState({ dragging: false });
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this.audio.play();
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}
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handleMouseMove = throttle(e => {
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const { x } = getPointerPosition(this.seek, e);
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const currentTime = this.audio.duration * x;
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if (!isNaN(currentTime)) {
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this.setState({ currentTime }, () => {
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this.audio.currentTime = currentTime;
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});
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}
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}, 15);
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handleTimeUpdate = () => {
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this.setState({
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currentTime: this.audio.currentTime,
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duration: Math.floor(this.audio.duration),
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});
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}
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handleMouseVolSlide = throttle(e => {
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const { x } = getPointerPosition(this.volume, e);
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if(!isNaN(x)) {
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this.setState({ volume: x }, () => {
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this.audio.volume = x;
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});
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}
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}, 15);
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handleMouseEnter = () => {
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this.setState({ hovered: true });
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}
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handleMouseLeave = () => {
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this.setState({ hovered: false });
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}
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_initAudioContext () {
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const context = new AudioContext();
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const analyser = context.createAnalyser();
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const source = context.createMediaElementSource(this.audio);
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analyser.smoothingTimeConstant = 0.6;
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analyser.fftSize = 2048;
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source.connect(analyser);
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source.connect(context.destination);
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this.audioContext = context;
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this.analyser = analyser;
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}
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handleDownload = () => {
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fetch(this.props.src).then(res => res.blob()).then(blob => {
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const element = document.createElement('a');
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const objectURL = URL.createObjectURL(blob);
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element.setAttribute('href', objectURL);
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element.setAttribute('download', fileNameFromURL(this.props.src));
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document.body.appendChild(element);
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element.click();
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document.body.removeChild(element);
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URL.revokeObjectURL(objectURL);
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}).catch(err => {
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console.error(err);
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});
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}
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_renderCanvas () {
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requestAnimationFrame(() => {
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this.handleTimeUpdate();
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this._clear();
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this._draw();
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if (!this.state.paused) {
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this._renderCanvas();
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}
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});
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}
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_clear () {
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this.canvasContext.clearRect(0, 0, this.state.width, this.state.height);
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}
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_draw () {
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this.canvasContext.save();
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const ticks = this._getTicks(360 * this._getScaleCoefficient(), TICK_SIZE);
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ticks.forEach(tick => {
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this._drawTick(tick.x1, tick.y1, tick.x2, tick.y2);
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});
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this.canvasContext.restore();
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}
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_getRadius () {
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return parseInt(((this.state.height || this.props.height) - (PADDING * this._getScaleCoefficient()) * 2) / 2);
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}
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_getScaleCoefficient () {
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return (this.state.height || this.props.height) / 982;
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}
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_getTicks (count, size, animationParams = [0, 90]) {
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const radius = this._getRadius();
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const ticks = this._getTickPoints(count);
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const lesser = 200;
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const m = [];
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const bufferLength = this.analyser ? this.analyser.frequencyBinCount : 0;
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const frequencyData = new Uint8Array(bufferLength);
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const allScales = [];
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const scaleCoefficient = this._getScaleCoefficient();
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if (this.analyser) {
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this.analyser.getByteFrequencyData(frequencyData);
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}
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ticks.forEach((tick, i) => {
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const coef = 1 - i / (ticks.length * 2.5);
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let delta = ((frequencyData[i] || 0) - lesser * coef) * scaleCoefficient;
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if (delta < 0) {
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delta = 0;
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}
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let k;
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if (animationParams[0] <= tick.angle && tick.angle <= animationParams[1]) {
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k = radius / (radius - this._getSize(tick.angle, animationParams[0], animationParams[1]) - delta);
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} else {
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k = radius / (radius - (size + delta));
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}
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const x1 = tick.x * (radius - size);
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const y1 = tick.y * (radius - size);
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const x2 = x1 * k;
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const y2 = y1 * k;
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m.push({ x1, y1, x2, y2 });
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if (i < 20) {
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let scale = delta / (200 * scaleCoefficient);
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scale = scale < 1 ? 1 : scale;
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allScales.push(scale);
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}
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});
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const scale = allScales.reduce((pv, cv) => pv + cv, 0) / allScales.length;
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return m.map(({ x1, y1, x2, y2 }) => ({
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x1: x1,
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y1: y1,
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x2: x2 * scale,
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y2: y2 * scale,
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}));
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}
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_getSize (angle, l, r) {
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const scaleCoefficient = this._getScaleCoefficient();
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const maxTickSize = TICK_SIZE * 9 * scaleCoefficient;
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const m = (r - l) / 2;
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const x = (angle - l);
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let h;
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if (x === m) {
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return maxTickSize;
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}
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const d = Math.abs(m - x);
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const v = 40 * Math.sqrt(1 / d);
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if (v > maxTickSize) {
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h = maxTickSize;
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} else {
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h = Math.max(TICK_SIZE, v);
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}
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return h;
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}
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_getTickPoints (count) {
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const PI = 360;
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const coords = [];
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const step = PI / count;
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let rad;
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for(let deg = 0; deg < PI; deg += step) {
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rad = deg * Math.PI / (PI / 2);
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coords.push({ x: Math.cos(rad), y: -Math.sin(rad), angle: deg });
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}
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return coords;
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}
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_drawTick (x1, y1, x2, y2) {
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const cx = this._getCX();
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const cy = this._getCY();
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const dx1 = Math.ceil(cx + x1);
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const dy1 = Math.ceil(cy + y1);
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const dx2 = Math.ceil(cx + x2);
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const dy2 = Math.ceil(cy + y2);
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const gradient = this.canvasContext.createLinearGradient(dx1, dy1, dx2, dy2);
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const mainColor = this._getAccentColor();
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const lastColor = hex2rgba(mainColor, 0);
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gradient.addColorStop(0, mainColor);
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gradient.addColorStop(0.6, mainColor);
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gradient.addColorStop(1, lastColor);
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this.canvasContext.beginPath();
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this.canvasContext.strokeStyle = gradient;
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this.canvasContext.lineWidth = 2;
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this.canvasContext.moveTo(dx1, dy1);
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this.canvasContext.lineTo(dx2, dy2);
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this.canvasContext.stroke();
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}
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_getCX() {
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return Math.floor(this.state.width / 2);
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}
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_getCY() {
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return Math.floor(this._getRadius() + (PADDING * this._getScaleCoefficient()));
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}
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_getAccentColor () {
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return this.props.accentColor || '#ffffff';
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}
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_getBackgroundColor () {
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return this.props.backgroundColor || '#000000';
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}
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_getForegroundColor () {
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return this.props.foregroundColor || '#ffffff';
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}
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render () {
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const { src, intl, alt, editable } = this.props;
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const { paused, muted, volume, currentTime, duration, buffer, dragging } = this.state;
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const progress = (currentTime / duration) * 100;
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return (
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<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}>
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<audio
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src={src}
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ref={this.setAudioRef}
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preload='none'
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onPlay={this.handlePlay}
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onPause={this.handlePause}
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onProgress={this.handleProgress}
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crossOrigin='anonymous'
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/>
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<canvas
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role='button'
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className='audio-player__canvas'
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width={this.state.width}
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height={this.state.height}
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style={{ width: '100%', position: 'absolute', top: 0, left: 0 }}
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ref={this.setCanvasRef}
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onClick={this.togglePlay}
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title={alt}
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aria-label={alt}
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/>
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<img
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src={this.props.poster}
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alt=''
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width={(this._getRadius() - TICK_SIZE) * 2}
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height={(this._getRadius() - TICK_SIZE) * 2}
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style={{ position: 'absolute', left: this._getCX(), top: this._getCY(), transform: 'translate(-50%, -50%)', borderRadius: '50%', pointerEvents: 'none' }}
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/>
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<div className='video-player__seek' onMouseDown={this.handleMouseDown} ref={this.setSeekRef}>
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<div className='video-player__seek__buffer' style={{ width: `${buffer}%` }} />
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<div className='video-player__seek__progress' style={{ width: `${progress}%`, backgroundColor: this._getAccentColor() }} />
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<span
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className={classNames('video-player__seek__handle', { active: dragging })}
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tabIndex='0'
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style={{ left: `${progress}%`, backgroundColor: this._getAccentColor() }}
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/>
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</div>
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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' 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>
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<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>
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<div className={classNames('video-player__volume', { active: this.state.hovered })} ref={this.setVolumeRef} onMouseDown={this.handleVolumeMouseDown}>
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<div className='video-player__volume__current' style={{ width: `${volume * 100}%`, backgroundColor: this._getAccentColor() }} />
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<span
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className={classNames('video-player__volume__handle')}
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tabIndex='0'
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style={{ left: `${volume * 100}%`, backgroundColor: this._getAccentColor() }}
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/>
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</div>
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<span className='video-player__time'>
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<span className='video-player__time-current'>{formatTime(Math.floor(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 className='video-player__buttons right'>
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<button type='button' title={intl.formatMessage(messages.download)} aria-label={intl.formatMessage(messages.download)} onClick={this.handleDownload}><Icon id='download' fixedWidth /></button>
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</div>
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</div>
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</div>
|
|
</div>
|
|
);
|
|
}
|
|
|
|
}
|