398 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			398 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
import React from 'react';
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import PropTypes from 'prop-types';
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import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
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import { fromJS } from 'immutable';
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import { throttle } from 'lodash';
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import classNames from 'classnames';
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import { isFullscreen, requestFullscreen, exitFullscreen } from 'flavours/glitch/util/fullscreen';
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import { displayMedia } from 'flavours/glitch/util/initial_state';
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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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  hide: { id: 'video.hide', defaultMessage: 'Hide video' },
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  expand: { id: 'video.expand', defaultMessage: 'Expand video' },
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  close: { id: 'video.close', defaultMessage: 'Close video' },
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  fullscreen: { id: 'video.fullscreen', defaultMessage: 'Full screen' },
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  exit_fullscreen: { id: 'video.exit_fullscreen', defaultMessage: 'Exit full screen' },
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});
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const formatTime = secondsNum => {
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  let hours   = Math.floor(secondsNum / 3600);
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  let minutes = Math.floor((secondsNum - (hours * 3600)) / 60);
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  let seconds = secondsNum - (hours * 3600) - (minutes * 60);
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  if (hours   < 10) hours   = '0' + hours;
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  if (minutes < 10) minutes = '0' + minutes;
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  if (seconds < 10) seconds = '0' + seconds;
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  return (hours === '00' ? '' : `${hours}:`) + `${minutes}:${seconds}`;
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};
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export const findElementPosition = el => {
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  let box;
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  if (el.getBoundingClientRect && el.parentNode) {
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    box = el.getBoundingClientRect();
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  }
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  if (!box) {
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    return {
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      left: 0,
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      top: 0,
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    };
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  }
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  const docEl = document.documentElement;
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  const body  = document.body;
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  const clientLeft = docEl.clientLeft || body.clientLeft || 0;
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  const scrollLeft = window.pageXOffset || body.scrollLeft;
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  const left       = (box.left + scrollLeft) - clientLeft;
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  const clientTop = docEl.clientTop || body.clientTop || 0;
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  const scrollTop = window.pageYOffset || body.scrollTop;
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  const top       = (box.top + scrollTop) - clientTop;
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  return {
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    left: Math.round(left),
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    top: Math.round(top),
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  };
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};
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export const getPointerPosition = (el, event) => {
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  const position = {};
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  const box = findElementPosition(el);
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  const boxW = el.offsetWidth;
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  const boxH = el.offsetHeight;
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  const boxY = box.top;
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  const boxX = box.left;
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  let pageY = event.pageY;
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  let pageX = event.pageX;
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  if (event.changedTouches) {
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    pageX = event.changedTouches[0].pageX;
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    pageY = event.changedTouches[0].pageY;
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  }
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  position.y = Math.max(0, Math.min(1, (pageY - boxY) / boxH));
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  position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
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  return position;
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};
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@injectIntl
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export default class Video extends React.PureComponent {
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  static propTypes = {
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    preview: PropTypes.string,
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    src: PropTypes.string.isRequired,
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    alt: PropTypes.string,
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    width: PropTypes.number,
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    height: PropTypes.number,
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    sensitive: PropTypes.bool,
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    revealed: PropTypes.bool,
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    startTime: PropTypes.number,
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    onOpenVideo: PropTypes.func,
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    onCloseVideo: PropTypes.func,
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    letterbox: PropTypes.bool,
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    fullwidth: PropTypes.bool,
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    detailed: PropTypes.bool,
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    inline: PropTypes.bool,
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    preventPlayback: 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: 0,
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    paused: true,
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    dragging: false,
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    containerWidth: false,
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    fullscreen: false,
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    hovered: false,
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    muted: false,
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    revealed: this.props.revealed === undefined ? (displayMedia !== 'hide_all' && !this.props.sensitive || displayMedia === 'show_all') : this.props.revealed,
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  };
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  setPlayerRef = c => {
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    this.player = c;
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    if (c) {
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      this.setState({
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        containerWidth: c.offsetWidth,
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      });
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    }
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  }
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  setVideoRef = c => {
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    this.video = c;
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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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  handleMouseDownRoot = e => {
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    e.preventDefault();
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    e.stopPropagation();
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  }
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  handlePlay = () => {
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    this.setState({ paused: false });
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  }
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  handlePause = () => {
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    this.setState({ paused: true });
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  }
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  handleTimeUpdate = () => {
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    this.setState({
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      currentTime: Math.floor(this.video.currentTime),
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      duration: Math.floor(this.video.duration),
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    });
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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.video.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.video.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 = Math.floor(this.video.duration * x);
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    if (!isNaN(currentTime)) {
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      this.video.currentTime = currentTime;
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      this.setState({ currentTime });
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    }
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  }, 60);
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  togglePlay = () => {
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    if (this.state.paused) {
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      this.video.play();
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    } else {
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      this.video.pause();
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    }
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  }
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  toggleFullscreen = () => {
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    if (isFullscreen()) {
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      exitFullscreen();
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    } else {
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      requestFullscreen(this.player);
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    }
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  }
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  componentDidMount () {
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    document.addEventListener('fullscreenchange', this.handleFullscreenChange, true);
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    document.addEventListener('webkitfullscreenchange', this.handleFullscreenChange, true);
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    document.addEventListener('mozfullscreenchange', this.handleFullscreenChange, true);
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    document.addEventListener('MSFullscreenChange', this.handleFullscreenChange, true);
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  }
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  componentWillUnmount () {
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    document.removeEventListener('fullscreenchange', this.handleFullscreenChange, true);
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    document.removeEventListener('webkitfullscreenchange', this.handleFullscreenChange, true);
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    document.removeEventListener('mozfullscreenchange', this.handleFullscreenChange, true);
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    document.removeEventListener('MSFullscreenChange', this.handleFullscreenChange, true);
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  }
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  componentDidUpdate (prevProps) {
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    if (this.player && this.player.offsetWidth && !this.state.fullscreen) {
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      this.setState({
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        containerWidth: this.player.offsetWidth,
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      });
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    }
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    if (this.video && this.state.revealed && this.props.preventPlayback && !prevProps.preventPlayback) {
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      this.video.pause();
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    }
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  }
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  handleFullscreenChange = () => {
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    this.setState({ fullscreen: isFullscreen() });
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  }
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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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  toggleMute = () => {
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    this.video.muted = !this.video.muted;
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    this.setState({ muted: this.video.muted });
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  }
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  toggleReveal = () => {
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    if (this.state.revealed) {
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      this.video.pause();
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    }
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    this.setState({ revealed: !this.state.revealed });
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  }
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  handleLoadedData = () => {
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    if (this.props.startTime) {
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      this.video.currentTime = this.props.startTime;
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      this.video.play();
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    }
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  }
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  handleProgress = () => {
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    if (this.video.buffered.length > 0) {
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      this.setState({ buffer: this.video.buffered.end(0) / this.video.duration * 100 });
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    }
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  }
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  handleOpenVideo = () => {
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    const { src, preview, width, height, alt } = this.props;
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    const media = fromJS({
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      type: 'video',
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      url: src,
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      preview_url: preview,
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      description: alt,
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      width,
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      height,
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    });
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    this.video.pause();
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    this.props.onOpenVideo(media, this.video.currentTime);
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  }
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  handleCloseVideo = () => {
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    this.video.pause();
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    this.props.onCloseVideo();
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  }
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  render () {
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    const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, letterbox, fullwidth, detailed, sensitive } = this.props;
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    const { containerWidth, currentTime, duration, buffer, dragging, paused, fullscreen, hovered, muted, revealed } = this.state;
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    const progress = (currentTime / duration) * 100;
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    const playerStyle = {};
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    let { width, height } = this.props;
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    if (inline && containerWidth) {
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      width  = containerWidth;
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      height = containerWidth / (16/9);
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      playerStyle.width  = width;
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      playerStyle.height = height;
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    }
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    let warning;
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    if (sensitive) {
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      warning = <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' />;
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    } else {
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      warning = <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />;
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    }
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    let preload;
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    if (startTime || fullscreen || dragging) {
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      preload = 'auto';
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    } else if (detailed) {
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      preload = 'metadata';
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    } else {
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      preload = 'none';
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    }
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    return (
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      <div
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        className={classNames('video-player', { inactive: !revealed, detailed, inline: inline && !fullscreen, fullscreen, letterbox, 'full-width': fullwidth })}
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        style={playerStyle}
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        ref={this.setPlayerRef}
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        onMouseEnter={this.handleMouseEnter}
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        onMouseLeave={this.handleMouseLeave}
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        onMouseDown={this.handleMouseDownRoot}
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        tabIndex={0}
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      >
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        <video
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          ref={this.setVideoRef}
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          src={src}
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          poster={preview}
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          preload={preload}
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          loop
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          role='button'
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          tabIndex='0'
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          aria-label={alt}
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          title={alt}
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          width={width}
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          height={height}
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          onClick={this.togglePlay}
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          onPlay={this.handlePlay}
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          onPause={this.handlePause}
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          onTimeUpdate={this.handleTimeUpdate}
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          onLoadedData={this.handleLoadedData}
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          onProgress={this.handleProgress}
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        />
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        <button type='button' className={classNames('video-player__spoiler', { active: !revealed })} onClick={this.toggleReveal}>
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          <span className='video-player__spoiler__title'>{warning}</span>
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          <span className='video-player__spoiler__subtitle'><FormattedMessage id='status.sensitive_toggle' defaultMessage='Click to view' /></span>
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        </button>
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        <div className={classNames('video-player__controls', { active: paused || hovered })}>
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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: `${progress}%` }} />
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            <span
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              className={classNames('video-player__seek__handle', { active: dragging })}
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              tabIndex='0'
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              style={{ left: `${progress}%` }}
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            />
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          </div>
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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}><i className={classNames('fa fa-fw', { 'fa-play': paused, 'fa-pause': !paused })} /></button>
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              <button type='button' aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><i className={classNames('fa fa-fw', { 'fa-volume-off': muted, 'fa-volume-up': !muted })} /></button>
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              {!onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.hide)} onClick={this.toggleReveal}><i className='fa fa-fw fa-eye' /></button>}
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              {(detailed || fullscreen) &&
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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(duration)}</span>
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                </span>
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              }
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            </div>
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            <div className='video-player__buttons right'>
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              {(!fullscreen && onOpenVideo) && <button type='button' aria-label={intl.formatMessage(messages.expand)} onClick={this.handleOpenVideo}><i className='fa fa-fw fa-expand' /></button>}
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              {onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.close)} onClick={this.handleCloseVideo}><i className='fa fa-fw fa-compress' /></button>}
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              <button type='button' aria-label={intl.formatMessage(fullscreen ? messages.exit_fullscreen : messages.fullscreen)} onClick={this.toggleFullscreen}><i className={classNames('fa fa-fw', { 'fa-arrows-alt': !fullscreen, 'fa-compress': fullscreen })} /></button>
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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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