522 lines
		
	
	
	
		
			17 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			522 lines
		
	
	
	
		
			17 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, is } 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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| import { decode } from 'blurhash';
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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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|   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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| 
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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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| 
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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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| 
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| export const findElementPosition = el => {
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|   let box;
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| 
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|   if (el.getBoundingClientRect && el.parentNode) {
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|     box = el.getBoundingClientRect();
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|   }
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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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| 
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|   const docEl = document.documentElement;
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|   const body  = document.body;
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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|   let pageY = event.pageY;
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|   let pageX = event.pageX;
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| 
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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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| 
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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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| 
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|   return position;
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| };
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| 
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| @injectIntl
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| export default class Video extends React.PureComponent {
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| 
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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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|     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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|     cacheWidth: PropTypes.func,
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|     intl: PropTypes.object.isRequired,
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|     visible: PropTypes.bool,
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|     onToggleVisibility: PropTypes.func,
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|     preventPlayback: PropTypes.bool,
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|     blurhash: PropTypes.string,
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|     link: PropTypes.node,
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|   };
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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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|     volume: 0.5,
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|     paused: true,
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|     dragging: false,
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|     containerWidth: this.props.width,
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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.visible !== undefined ? this.props.visible : (displayMedia !== 'hide_all' && !this.props.sensitive || displayMedia === 'show_all'),
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|   };
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| 
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|   componentWillReceiveProps (nextProps) {
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|     if (!is(nextProps.visible, this.props.visible) && nextProps.visible !== undefined) {
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|       this.setState({ revealed: nextProps.visible });
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|     }
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|   }
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| 
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|   // hard coded in components.scss
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|   // any way to get ::before values programatically?
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|   volWidth = 50;
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|   volOffset = 70;
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|   volHandleOffset = v => {
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|     const offset = v * this.volWidth + this.volOffset;
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|     return (offset > 110) ? 110 : offset;
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|   }
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| 
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|   setPlayerRef = c => {
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|     this.player = c;
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| 
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|     if (c && c.offsetWidth && c.offsetWidth != this.state.containerWidth) {
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|       if (this.props.cacheWidth) this.props.cacheWidth(this.player.offsetWidth);
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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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| 
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|   setVideoRef = c => {
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|     this.video = c;
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| 
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|     if (this.video) {
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|       this.setState({ volume: this.video.volume, muted: this.video.muted });
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|     }
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|   }
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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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| 
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|   setVolumeRef = c => {
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|     this.volume = c;
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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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| 
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|     if (c && this.props.blurhash) {
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|       this._decode();
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|     }
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|   }
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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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| 
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|   handlePlay = () => {
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|     this.setState({ paused: false });
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|   }
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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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| 
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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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| 
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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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| 
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|     this.handleMouseVolSlide(e);
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| 
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|     e.preventDefault();
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|     e.stopPropagation();
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|   }
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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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| 
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|   handleMouseVolSlide = throttle(e => {
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|     const rect = this.volume.getBoundingClientRect();
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|     const x = (e.clientX - rect.left) / this.volWidth; //x position within the element.
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| 
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|     if(!isNaN(x)) {
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|       var slideamt = x;
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|       if(x > 1) {
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|         slideamt = 1;
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|       } else if(x < 0) {
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|         slideamt = 0;
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|       }
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|       this.video.volume = slideamt;
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|       this.setState({ volume: slideamt });
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|     }
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|   }, 60);
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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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| 
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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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| 
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|     e.preventDefault();
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|     e.stopPropagation();
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|   }
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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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| 
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|     this.setState({ dragging: false });
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|     this.video.play();
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|   }
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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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| 
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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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| 
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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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| 
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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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| 
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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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|     if (this.props.blurhash) {
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|       this._decode();
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|     }
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|   }
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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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| 
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|   componentDidUpdate (prevProps) {
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|     if (this.player && this.player.offsetWidth && this.player.offsetWidth != this.state.containerWidth && !this.state.fullscreen) {
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|       if (this.props.cacheWidth) this.props.cacheWidth(this.player.offsetWidth);
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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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|     if (prevProps.blurhash !== this.props.blurhash && this.props.blurhash) {
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|       this._decode();
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|     }
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|   }
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| 
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|   _decode () {
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|     if (!this.canvas) return;
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| 
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|     const hash   = this.props.blurhash;
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|     const pixels = decode(hash, 32, 32);
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| 
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|     if (pixels) {
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|       const ctx       = this.canvas.getContext('2d');
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|       const imageData = new ImageData(pixels, 32, 32);
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| 
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|       ctx.putImageData(imageData, 0, 0);
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|     }
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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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| 
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|   handleMouseEnter = () => {
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|     this.setState({ hovered: true });
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|   }
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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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| 
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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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| 
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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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| 
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|     if (this.props.onToggleVisibility) {
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|       this.props.onToggleVisibility();
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|     } else {
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|       this.setState({ revealed: !this.state.revealed });
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|     }
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|   }
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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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| 
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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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| 
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|   handleVolumeChange = () => {
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|     this.setState({ volume: this.video.volume, muted: this.video.muted });
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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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| 
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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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| 
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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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| 
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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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| 
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|   render () {
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|     const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, letterbox, fullwidth, detailed, sensitive, link } = this.props;
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|     const { containerWidth, currentTime, duration, volume, 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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| 
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|     const volumeWidth = (muted) ? 0 : volume * this.volWidth;
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|     const volumeHandleLoc = (muted) ? this.volHandleOffset(0) : this.volHandleOffset(volume);
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| 
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|     const computedClass = classNames('video-player', { inactive: !revealed, detailed, inline: inline && !fullscreen, fullscreen, letterbox, 'full-width': fullwidth });
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| 
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|     let { width, height } = this.props;
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| 
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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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| 
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|       playerStyle.height = height;
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|     } else if (inline) {
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|       return (<div className={computedClass} ref={this.setPlayerRef} tabindex={0}></div>);
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|     }
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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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| 
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|     let preload;
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| 
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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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| 
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|     return (
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|       <div
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|         className={computedClass}
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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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|         <canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': revealed })} />
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| 
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|         {revealed && <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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|           volume={volume}
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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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|           onVolumeChange={this.handleVolumeChange}
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|         />}
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| 
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|         <div className={classNames('spoiler-button', { 'spoiler-button--hidden': revealed })}>
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|           <button type='button' className='spoiler-button__overlay' onClick={this.toggleReveal}>
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|             <span className='spoiler-button__overlay__label'>{warning}</span>
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|           </button>
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|         </div>
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| 
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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: `${progress}%` }} />
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| 
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|             <span
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|               className={classNames('video-player__seek__handle', { active: dragging })}
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|               tabIndex='0'
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|               style={{ left: `${progress}%` }}
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|             />
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|           </div>
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| 
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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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|               <div className='video-player__volume' onMouseDown={this.handleVolumeMouseDown} ref={this.setVolumeRef}>
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|                 <div className='video-player__volume__current' style={{ width: `${volumeWidth}px` }} />
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|                 <span
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|                   className={classNames('video-player__volume__handle')}
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|                   tabIndex='0'
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|                   style={{ left: `${volumeHandleLoc}px` }}
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|                 />
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|               </div>
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| 
 | |
|               {(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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| 
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|               {link && <span className='video-player__link'>{link}</span>}
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|             </div>
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| 
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|             <div className='video-player__buttons right'>
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|               {!onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.hide)} onClick={this.toggleReveal}><i className='fa fa-fw fa-eye-slash' /></button>}
 | |
|               {(!fullscreen && onOpenVideo) && <button type='button' aria-label={intl.formatMessage(messages.expand)} onClick={this.handleOpenVideo}><i className='fa fa-fw fa-expand' /></button>}
 | |
|               {onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.close)} onClick={this.handleCloseVideo}><i className='fa fa-fw fa-compress' /></button>}
 | |
|               <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>
 | |
|             </div>
 | |
|           </div>
 | |
|         </div>
 | |
|       </div>
 | |
|     );
 | |
|   }
 | |
| 
 | |
| }
 |