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			728 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			728 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
 | |
| var player_data = JSON.parse(document.getElementById('player_data').textContent);
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| var video_data = JSON.parse(document.getElementById('video_data').textContent);
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| 
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| var options = {
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|     preload: 'auto',
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|     liveui: true,
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|     playbackRates: [0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0],
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|     controlBar: {
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|         children: [
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|             'playToggle',
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|             'volumePanel',
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|             'currentTimeDisplay',
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|             'timeDivider',
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|             'durationDisplay',
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|             'progressControl',
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|             'remainingTimeDisplay',
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|             'Spacer',
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|             'captionsButton',
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|             'audioTrackButton',
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|             'qualitySelector',
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|             'playbackRateMenuButton',
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|             'fullscreenToggle'
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|         ]
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|     },
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|     html5: {
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|         preloadTextTracks: false,
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|         vhs: {
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|             overrideNative: true
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|         }
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|     }
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| };
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| 
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| if (player_data.aspect_ratio) {
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|     options.aspectRatio = player_data.aspect_ratio;
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| }
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| 
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| var embed_url = new URL(location);
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| embed_url.searchParams.delete('v');
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| var short_url = location.origin + '/' + video_data.id + embed_url.search;
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| embed_url = location.origin + '/embed/' + video_data.id + embed_url.search;
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| 
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| var save_player_pos_key = 'save_player_pos';
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| 
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| videojs.Vhs.xhr.beforeRequest = function(options) {
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|     // set local if requested not videoplayback
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|     if (!options.uri.includes('videoplayback')) {
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|         if (!options.uri.includes('local=true'))
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|             options.uri += '?local=true';
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|     }
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|     return options;
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| };
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| 
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| var player = videojs('player', options);
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| 
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| player.on('error', function () {
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|     if (video_data.params.quality === 'dash') return;
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| 
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|     var localNotDisabled = (
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|         !player.currentSrc().includes('local=true') && !video_data.local_disabled
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|     );
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|     var reloadMakesSense = (
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|         player.error().code === MediaError.MEDIA_ERR_NETWORK ||
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|         player.error().code === MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED
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|     );
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| 
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|     if (localNotDisabled) {
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|         // add local=true to all current sources
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|         player.src(player.currentSources().map(function (source) {
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|             source.src += '&local=true';
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|             return source;
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|         }));
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|     } else if (reloadMakesSense) {
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|         setTimeout(function () {
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|             console.warn('An error occurred in the player, reloading...');
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| 
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|             // After load() all parameters are reset. Save them
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|             var currentTime = player.currentTime();
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|             var playbackRate = player.playbackRate();
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|             var paused = player.paused();
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| 
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|             player.load();
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| 
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|             if (currentTime > 0.5) currentTime -= 0.5;
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| 
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|             player.currentTime(currentTime);
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|             player.playbackRate(playbackRate);
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|             if (!paused) player.play();
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|         }, 5000);
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|     }
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| });
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| 
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| if (video_data.params.quality === 'dash') {
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|     player.reloadSourceOnError({
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|         errorInterval: 10
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|     });
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| }
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| 
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| /**
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|  * Function for add time argument to url
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|  * @param {String} url
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|  * @returns {URL} urlWithTimeArg
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|  */
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| function addCurrentTimeToURL(url) {
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|     var urlUsed = new URL(url);
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|     urlUsed.searchParams.delete('start');
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|     var currentTime = Math.ceil(player.currentTime());
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|     if (currentTime > 0)
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|         urlUsed.searchParams.set('t', currentTime);
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|     else if (urlUsed.searchParams.has('t'))
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|         urlUsed.searchParams.delete('t');
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|     return urlUsed;
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| }
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| 
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| var shareOptions = {
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|     socials: ['fbFeed', 'tw', 'reddit', 'email'],
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| 
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|     get url() {
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|         return addCurrentTimeToURL(short_url);
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|     },
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|     title: player_data.title,
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|     description: player_data.description,
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|     image: player_data.thumbnail,
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|     get embedCode() {
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|         // Single quotes inside here required. HTML inserted as is into value attribute of input
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|         return "<iframe id='ivplayer' width='640' height='360' src='" +
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|             addCurrentTimeToURL(embed_url) + "' style='border:none;'></iframe>";
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|     }
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| };
 | |
| 
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| if (location.pathname.startsWith('/embed/')) {
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|     var overlay_content = '<h1><a rel="noopener" target="_blank" href="' + location.origin + '/watch?v=' + video_data.id + '">' + player_data.title + '</a></h1>';
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|     player.overlay({
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|         overlays: [
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|             { start: 'loadstart', content: overlay_content, end: 'playing', align: 'top'},
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|             { start: 'pause',     content: overlay_content, end: 'playing', align: 'top'}
 | |
|         ]
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|     });
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| }
 | |
| 
 | |
| // Detect mobile users and initialize mobileUi for better UX
 | |
| // Detection code taken from https://stackoverflow.com/a/20293441
 | |
| 
 | |
| function isMobile() {
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|   try{ document.createEvent('TouchEvent'); return true; }
 | |
|   catch(e){ return false; }
 | |
| }
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| 
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| if (isMobile()) {
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|     player.mobileUi({ touchControls: { seekSeconds: 5 * player.playbackRate() } });
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| 
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|     var buttons = ['playToggle', 'volumePanel', 'captionsButton'];
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| 
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|     if (!video_data.params.listen && video_data.params.quality === 'dash') buttons.push('audioTrackButton');
 | |
|     if (video_data.params.listen || video_data.params.quality !== 'dash') buttons.push('qualitySelector');
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| 
 | |
|     // Create new control bar object for operation buttons
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|     const ControlBar = videojs.getComponent('controlBar');
 | |
|     let operations_bar = new ControlBar(player, {
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|       children: [],
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|       playbackRates: [0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0]
 | |
|     });
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|     buttons.slice(1).forEach(function (child) {operations_bar.addChild(child);});
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| 
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|     // Remove operation buttons from primary control bar
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|     var primary_control_bar = player.getChild('controlBar');
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|     buttons.forEach(function (child) {primary_control_bar.removeChild(child);});
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| 
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|     var operations_bar_element = operations_bar.el();
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|     operations_bar_element.classList.add('mobile-operations-bar');
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|     player.addChild(operations_bar);
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| 
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|     // Playback menu doesn't work when it's initialized outside of the primary control bar
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|     var playback_element = document.getElementsByClassName('vjs-playback-rate')[0];
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|     operations_bar_element.append(playback_element);
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| 
 | |
|     // The share and http source selector element can't be fetched till the players ready.
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|     player.one('playing', function () {
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|         var share_element = document.getElementsByClassName('vjs-share-control')[0];
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|         operations_bar_element.append(share_element);
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| 
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|         if (!video_data.params.listen && video_data.params.quality === 'dash') {
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|             var http_source_selector = document.getElementsByClassName('vjs-http-source-selector vjs-menu-button')[0];
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|             operations_bar_element.append(http_source_selector);
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|         }
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|     });
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| }
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| 
 | |
| // Enable VR video support
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| if (!video_data.params.listen && video_data.vr && video_data.params.vr_mode) {
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|     player.crossOrigin('anonymous');
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|     switch (video_data.projection_type) {
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|         case 'EQUIRECTANGULAR':
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|             player.vr({projection: 'equirectangular'});
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|         default: // Should only be 'MESH' but we'll use this as a fallback.
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|             player.vr({projection: 'EAC'});
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|     }
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| }
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| 
 | |
| // Add markers
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| if (video_data.params.video_start > 0 || video_data.params.video_end > 0) {
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|     var markers = [{ time: video_data.params.video_start, text: 'Start' }];
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| 
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|     if (video_data.params.video_end < 0) {
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|         markers.push({ time: video_data.length_seconds - 0.5, text: 'End' });
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|     } else {
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|         markers.push({ time: video_data.params.video_end, text: 'End' });
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|     }
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| 
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|     player.markers({
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|         onMarkerReached: function (marker) {
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|             if (marker.text === 'End')
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|                 player.loop() ? player.markers.prev('Start') : player.pause();
 | |
|         },
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|         markers: markers
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|     });
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| 
 | |
|     player.currentTime(video_data.params.video_start);
 | |
| }
 | |
| 
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| player.volume(video_data.params.volume / 100);
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| player.playbackRate(video_data.params.speed);
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| 
 | |
| /**
 | |
|  * Method for getting the contents of a cookie
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|  *
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|  * @param {String} name Name of cookie
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|  * @returns {String|null} cookieValue
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|  */
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| function getCookieValue(name) {
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|     var cookiePrefix = name + '=';
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|     var matchedCookie = document.cookie.split(';').find(function (item) {return item.includes(cookiePrefix);});
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|     if (matchedCookie)
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|         return matchedCookie.replace(cookiePrefix, '');
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|     return null;
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| }
 | |
| 
 | |
| /**
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|  * Method for updating the 'PREFS' cookie (or creating it if missing)
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|  *
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|  * @param {number} newVolume New volume defined (null if unchanged)
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|  * @param {number} newSpeed New speed defined (null if unchanged)
 | |
|  */
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| function updateCookie(newVolume, newSpeed) {
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|     var volumeValue = newVolume !== null ? newVolume : video_data.params.volume;
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|     var speedValue = newSpeed !== null ? newSpeed : video_data.params.speed;
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| 
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|     var cookieValue = getCookieValue('PREFS');
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|     var cookieData;
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| 
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|     if (cookieValue !== null) {
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|         var cookieJson = JSON.parse(decodeURIComponent(cookieValue));
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|         cookieJson.volume = volumeValue;
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|         cookieJson.speed = speedValue;
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|         cookieData = encodeURIComponent(JSON.stringify(cookieJson));
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|     } else {
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|         cookieData = encodeURIComponent(JSON.stringify({ 'volume': volumeValue, 'speed': speedValue }));
 | |
|     }
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| 
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|     // Set expiration in 2 year
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|     var date = new Date();
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|     date.setFullYear(date.getFullYear() + 2);
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| 
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|     var ipRegex = /^((\d+\.){3}\d+|[\dA-Fa-f]*:[\d:A-Fa-f]*:[\d:A-Fa-f]+)$/;
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|     var domainUsed = location.hostname;
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| 
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|     // Fix for a bug in FF where the leading dot in the FQDN is not ignored
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|     if (domainUsed.charAt(0) !== '.' && !ipRegex.test(domainUsed) && domainUsed !== 'localhost')
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|         domainUsed = '.' + location.hostname;
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| 
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|     var secure = location.protocol.startsWith("https") ? " Secure;" : "";
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| 
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|     document.cookie = 'PREFS=' + cookieData + '; SameSite=Lax; path=/; domain=' +
 | |
|         domainUsed + '; expires=' + date.toGMTString() + ';' + secure;
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| 
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|     video_data.params.volume = volumeValue;
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|     video_data.params.speed = speedValue;
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| }
 | |
| 
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| player.on('ratechange', function () {
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|     updateCookie(null, player.playbackRate());
 | |
|     if (isMobile()) {
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|         player.mobileUi({ touchControls: { seekSeconds: 5 * player.playbackRate() } });
 | |
|     }
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| });
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| 
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| player.on('volumechange', function () {
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|     updateCookie(Math.ceil(player.volume() * 100), null);
 | |
| });
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| 
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| player.on('waiting', function () {
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|     if (player.playbackRate() > 1 && player.liveTracker.isLive() && player.liveTracker.atLiveEdge()) {
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|         console.info('Player has caught up to source, resetting playbackRate');
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|         player.playbackRate(1);
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|     }
 | |
| });
 | |
| 
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| if (video_data.premiere_timestamp && Math.round(new Date() / 1000) < video_data.premiere_timestamp) {
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|     player.getChild('bigPlayButton').hide();
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| }
 | |
| 
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| if (video_data.params.save_player_pos) {
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|     const url = new URL(location);
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|     const hasTimeParam = url.searchParams.has('t');
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|     const rememberedTime = get_video_time();
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|     let lastUpdated = 0;
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| 
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|     if(!hasTimeParam) set_seconds_after_start(rememberedTime);
 | |
| 
 | |
|     player.on('timeupdate', function () {
 | |
|         const raw = player.currentTime();
 | |
|         const time = Math.floor(raw);
 | |
| 
 | |
|         if(lastUpdated !== time && raw <= video_data.length_seconds - 15) {
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|             save_video_time(time);
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|             lastUpdated = time;
 | |
|         }
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|     });
 | |
| }
 | |
| else remove_all_video_times();
 | |
| 
 | |
| if (video_data.params.autoplay) {
 | |
|     var bpb = player.getChild('bigPlayButton');
 | |
|     bpb.hide();
 | |
| 
 | |
|     player.ready(function () {
 | |
|         new Promise(function (resolve, reject) {
 | |
|             setTimeout(function () {resolve(1);}, 1);
 | |
|         }).then(function (result) {
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|             var promise = player.play();
 | |
| 
 | |
|             if (promise !== undefined) {
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|                 promise.then(function () {
 | |
|                 }).catch(function (error) {
 | |
|                     bpb.show();
 | |
|                 });
 | |
|             }
 | |
|         });
 | |
|     });
 | |
| }
 | |
| 
 | |
| if (!video_data.params.listen && video_data.params.quality === 'dash') {
 | |
|     player.httpSourceSelector();
 | |
| 
 | |
|     if (video_data.params.quality_dash !== 'auto') {
 | |
|         player.ready(function () {
 | |
|             player.on('loadedmetadata', function () {
 | |
|                 const qualityLevels = Array.from(player.qualityLevels()).sort(function (a, b) {return a.height - b.height;});
 | |
|                 let targetQualityLevel;
 | |
|                 switch (video_data.params.quality_dash) {
 | |
|                     case 'best':
 | |
|                         targetQualityLevel = qualityLevels.length - 1;
 | |
|                         break;
 | |
|                     case 'worst':
 | |
|                         targetQualityLevel = 0;
 | |
|                         break;
 | |
|                     default:
 | |
|                         const targetHeight = parseInt(video_data.params.quality_dash);
 | |
|                         for (let i = 0; i < qualityLevels.length; i++) {
 | |
|                             if (qualityLevels[i].height <= targetHeight)
 | |
|                                 targetQualityLevel = i;
 | |
|                             else
 | |
|                                 break;
 | |
|                         }
 | |
|                 }
 | |
|                 qualityLevels.forEach(function (level, index) {
 | |
|                     level.enabled = (index === targetQualityLevel);
 | |
|                 });
 | |
|             });
 | |
|         });
 | |
|     }
 | |
| }
 | |
| 
 | |
| player.vttThumbnails({
 | |
|     src: '/api/v1/storyboards/' + video_data.id + '?height=90',
 | |
|     showTimestamp: true
 | |
| });
 | |
| 
 | |
| // Enable annotations
 | |
| if (!video_data.params.listen && video_data.params.annotations) {
 | |
|     addEventListener('load', function (e) {
 | |
|         addEventListener('__ar_annotation_click', function (e) {
 | |
|             const url = e.detail.url,
 | |
|                   target = e.detail.target,
 | |
|                   seconds = e.detail.seconds;
 | |
|             var path = new URL(url);
 | |
| 
 | |
|             if (path.href.startsWith('https://www.youtube.com/watch?') && seconds) {
 | |
|                 path.search += '&t=' + seconds;
 | |
|             }
 | |
| 
 | |
|             path = path.pathname + path.search;
 | |
| 
 | |
|             if (target === 'current') {
 | |
|                 location.href = path;
 | |
|             } else if (target === 'new') {
 | |
|                 open(path, '_blank');
 | |
|             }
 | |
|         });
 | |
| 
 | |
|         helpers.xhr('GET', '/api/v1/annotations/' + video_data.id, {
 | |
|             responseType: 'text',
 | |
|             timeout: 60000
 | |
|         }, {
 | |
|             on200: function (response) {
 | |
|                 var video_container = document.getElementById('player');
 | |
|                 videojs.registerPlugin('youtubeAnnotationsPlugin', youtubeAnnotationsPlugin);
 | |
|                 if (player.paused()) {
 | |
|                     player.one('play', function (event) {
 | |
|                         player.youtubeAnnotationsPlugin({ annotationXml: response, videoContainer: video_container });
 | |
|                     });
 | |
|                 } else {
 | |
|                     player.youtubeAnnotationsPlugin({ annotationXml: response, videoContainer: video_container });
 | |
|                 }
 | |
|             }
 | |
|         });
 | |
| 
 | |
|     });
 | |
| }
 | |
| 
 | |
| function change_volume(delta) {
 | |
|     const curVolume = player.volume();
 | |
|     let newVolume = curVolume + delta;
 | |
|     newVolume = helpers.clamp(newVolume, 0, 1);
 | |
|     player.volume(newVolume);
 | |
| }
 | |
| 
 | |
| function toggle_muted() {
 | |
|     player.muted(!player.muted());
 | |
| }
 | |
| 
 | |
| function skip_seconds(delta) {
 | |
|     const duration = player.duration();
 | |
|     const curTime = player.currentTime();
 | |
|     let newTime = curTime + delta;
 | |
|     newTime = helpers.clamp(newTime, 0, duration);
 | |
|     player.currentTime(newTime);
 | |
| }
 | |
| 
 | |
| function set_seconds_after_start(delta) {
 | |
|     const start = video_data.params.video_start;
 | |
|     player.currentTime(start + delta);
 | |
| }
 | |
| 
 | |
| function save_video_time(seconds) {
 | |
|     const all_video_times = get_all_video_times();
 | |
|     all_video_times[video_data.id] = seconds;
 | |
|     helpers.storage.set(save_player_pos_key, all_video_times);
 | |
| }
 | |
| 
 | |
| function get_video_time() {
 | |
|     return get_all_video_times()[video_data.id] || 0;
 | |
| }
 | |
| 
 | |
| function get_all_video_times() {
 | |
|     return helpers.storage.get(save_player_pos_key) || {};
 | |
| }
 | |
| 
 | |
| function remove_all_video_times() {
 | |
|     helpers.storage.remove(save_player_pos_key);
 | |
| }
 | |
| 
 | |
| function set_time_percent(percent) {
 | |
|     const duration = player.duration();
 | |
|     const newTime = duration * (percent / 100);
 | |
|     player.currentTime(newTime);
 | |
| }
 | |
| 
 | |
| function play()  { player.play(); }
 | |
| function pause() { player.pause(); }
 | |
| function stop()  { player.pause(); player.currentTime(0); }
 | |
| function toggle_play() { player.paused() ? play() : pause(); }
 | |
| 
 | |
| const toggle_captions = (function () {
 | |
|     let toggledTrack = null;
 | |
| 
 | |
|     function bindChange(onOrOff) {
 | |
|         player.textTracks()[onOrOff]('change', function (e) {
 | |
|             toggledTrack = null;
 | |
|         });
 | |
|     }
 | |
| 
 | |
|     // Wrapper function to ignore our own emitted events and only listen
 | |
|     // to events emitted by Video.js on click on the captions menu items.
 | |
|     function setMode(track, mode) {
 | |
|         bindChange('off');
 | |
|         track.mode = mode;
 | |
|         setTimeout(function () {
 | |
|             bindChange('on');
 | |
|         }, 0);
 | |
|     }
 | |
| 
 | |
|     bindChange('on');
 | |
|     return function () {
 | |
|         if (toggledTrack !== null) {
 | |
|             if (toggledTrack.mode !== 'showing') {
 | |
|                 setMode(toggledTrack, 'showing');
 | |
|             } else {
 | |
|                 setMode(toggledTrack, 'disabled');
 | |
|             }
 | |
|             toggledTrack = null;
 | |
|             return;
 | |
|         }
 | |
| 
 | |
|         // Used as a fallback if no captions are currently active.
 | |
|         // TODO: Make this more intelligent by e.g. relying on browser language.
 | |
|         let fallbackCaptionsTrack = null;
 | |
| 
 | |
|         const tracks = player.textTracks();
 | |
|         for (let i = 0; i < tracks.length; i++) {
 | |
|             const track = tracks[i];
 | |
|             if (track.kind !== 'captions') continue;
 | |
| 
 | |
|             if (fallbackCaptionsTrack === null) {
 | |
|                 fallbackCaptionsTrack = track;
 | |
|             }
 | |
|             if (track.mode === 'showing') {
 | |
|                 setMode(track, 'disabled');
 | |
|                 toggledTrack = track;
 | |
|                 return;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         // Fallback if no captions are currently active.
 | |
|         if (fallbackCaptionsTrack !== null) {
 | |
|             setMode(fallbackCaptionsTrack, 'showing');
 | |
|             toggledTrack = fallbackCaptionsTrack;
 | |
|         }
 | |
|     };
 | |
| })();
 | |
| 
 | |
| function toggle_fullscreen() {
 | |
|     player.isFullscreen() ? player.exitFullscreen() : player.requestFullscreen();
 | |
| }
 | |
| 
 | |
| function increase_playback_rate(steps) {
 | |
|     const maxIndex = options.playbackRates.length - 1;
 | |
|     const curIndex = options.playbackRates.indexOf(player.playbackRate());
 | |
|     let newIndex = curIndex + steps;
 | |
|     newIndex = helpers.clamp(newIndex, 0, maxIndex);
 | |
|     player.playbackRate(options.playbackRates[newIndex]);
 | |
| }
 | |
| 
 | |
| addEventListener('keydown', function (e) {
 | |
|     if (e.target.tagName.toLowerCase() === 'input') {
 | |
|         // Ignore input when focus is on certain elements, e.g. form fields.
 | |
|         return;
 | |
|     }
 | |
|     // See https://github.com/ctd1500/videojs-hotkeys/blob/bb4a158b2e214ccab87c2e7b95f42bc45c6bfd87/videojs.hotkeys.js#L310-L313
 | |
|     const isPlayerFocused = false
 | |
|         || e.target === document.querySelector('.video-js')
 | |
|         || e.target === document.querySelector('.vjs-tech')
 | |
|         || e.target === document.querySelector('.iframeblocker')
 | |
|         || e.target === document.querySelector('.vjs-control-bar')
 | |
|         ;
 | |
|     let action = null;
 | |
| 
 | |
|     const code = e.keyCode;
 | |
|     const decoratedKey =
 | |
|         e.key
 | |
|         + (e.altKey ? '+alt' : '')
 | |
|         + (e.ctrlKey ? '+ctrl' : '')
 | |
|         + (e.metaKey ? '+meta' : '')
 | |
|         ;
 | |
|     switch (decoratedKey) {
 | |
|         case ' ':
 | |
|         case 'k':
 | |
|         case 'MediaPlayPause':
 | |
|             action = toggle_play;
 | |
|             break;
 | |
| 
 | |
|         case 'MediaPlay':  action = play; break;
 | |
|         case 'MediaPause': action = pause; break;
 | |
|         case 'MediaStop':  action = stop; break;
 | |
| 
 | |
|         case 'ArrowUp':
 | |
|             if (isPlayerFocused) action = change_volume.bind(this, 0.1);
 | |
|             break;
 | |
|         case 'ArrowDown':
 | |
|             if (isPlayerFocused) action = change_volume.bind(this, -0.1);
 | |
|             break;
 | |
| 
 | |
|         case 'm':
 | |
|             action = toggle_muted;
 | |
|             break;
 | |
| 
 | |
|         case 'ArrowRight':
 | |
|         case 'MediaFastForward':
 | |
|             action = skip_seconds.bind(this, 5 * player.playbackRate());
 | |
|             break;
 | |
|         case 'ArrowLeft':
 | |
|         case 'MediaTrackPrevious':
 | |
|             action = skip_seconds.bind(this, -5 * player.playbackRate());
 | |
|             break;
 | |
|         case 'l':
 | |
|             action = skip_seconds.bind(this, 10 * player.playbackRate());
 | |
|             break;
 | |
|         case 'j':
 | |
|             action = skip_seconds.bind(this, -10 * player.playbackRate());
 | |
|             break;
 | |
| 
 | |
|         case '0':
 | |
|         case '1':
 | |
|         case '2':
 | |
|         case '3':
 | |
|         case '4':
 | |
|         case '5':
 | |
|         case '6':
 | |
|         case '7':
 | |
|         case '8':
 | |
|         case '9':
 | |
|             // Ignore numpad numbers
 | |
|             if (code > 57) break;
 | |
| 
 | |
|             const percent = (code - 48) * 10;
 | |
|             action = set_time_percent.bind(this, percent);
 | |
|             break;
 | |
| 
 | |
|         case 'c': action = toggle_captions; break;
 | |
|         case 'f': action = toggle_fullscreen; break;
 | |
| 
 | |
|         case 'N':
 | |
|         case 'MediaTrackNext':
 | |
|             action = next_video;
 | |
|             break;
 | |
|         case 'P':
 | |
|         case 'MediaTrackPrevious':
 | |
|             // TODO: Add support to play back previous video.
 | |
|             break;
 | |
| 
 | |
|         // TODO: More precise step. Now FPS is taken equal to 29.97
 | |
|         // Common FPS: https://forum.videohelp.com/threads/81868#post323588
 | |
|         // Possible solution is new HTMLVideoElement.requestVideoFrameCallback() https://wicg.github.io/video-rvfc/
 | |
|         case ',': action = function () { pause(); skip_seconds(-1/29.97); }; break;
 | |
|         case '.': action = function () { pause(); skip_seconds( 1/29.97); }; break;
 | |
| 
 | |
|         case '>': action = increase_playback_rate.bind(this, 1); break;
 | |
|         case '<': action = increase_playback_rate.bind(this, -1); break;
 | |
| 
 | |
|         default:
 | |
|             console.info('Unhandled key down event: %s:', decoratedKey, e);
 | |
|             break;
 | |
|     }
 | |
| 
 | |
|     if (action) {
 | |
|         e.preventDefault();
 | |
|         action();
 | |
|     }
 | |
| }, false);
 | |
| 
 | |
| // Add support for controlling the player volume by scrolling over it. Adapted from
 | |
| // https://github.com/ctd1500/videojs-hotkeys/blob/bb4a158b2e214ccab87c2e7b95f42bc45c6bfd87/videojs.hotkeys.js#L292-L328
 | |
| (function () {
 | |
|     const pEl = document.getElementById('player');
 | |
| 
 | |
|     var volumeHover = false;
 | |
|     var volumeSelector = pEl.querySelector('.vjs-volume-menu-button') || pEl.querySelector('.vjs-volume-panel');
 | |
|     if (volumeSelector !== null) {
 | |
|         volumeSelector.onmouseover = function () { volumeHover = true; };
 | |
|         volumeSelector.onmouseout = function () { volumeHover = false; };
 | |
|     }
 | |
| 
 | |
|     function mouseScroll(event) {
 | |
|         // When controls are disabled, hotkeys will be disabled as well
 | |
|         if (!player.controls() || !volumeHover) return;
 | |
| 
 | |
|         event.preventDefault();
 | |
|         var wheelMove = event.wheelDelta || -event.detail;
 | |
|         var volumeSign = Math.sign(wheelMove);
 | |
| 
 | |
|         change_volume(volumeSign * 0.05); // decrease/increase by 5%
 | |
|     }
 | |
| 
 | |
|     player.on('mousewheel', mouseScroll);
 | |
|     player.on('DOMMouseScroll', mouseScroll);
 | |
| }());
 | |
| 
 | |
| // Since videojs-share can sometimes be blocked, we defer it until last
 | |
| if (player.share) player.share(shareOptions);
 | |
| 
 | |
| // show the preferred caption by default
 | |
| if (player_data.preferred_caption_found) {
 | |
|     player.ready(function () {
 | |
|         if (!video_data.params.listen && video_data.params.quality === 'dash') {
 | |
|             // play.textTracks()[0] on DASH mode is showing some debug messages
 | |
|             player.textTracks()[1].mode = 'showing';
 | |
|         } else {
 | |
|             player.textTracks()[0].mode = 'showing';
 | |
|         }
 | |
|     });
 | |
| }
 | |
| 
 | |
| // Safari audio double duration fix
 | |
| if (navigator.vendor === 'Apple Computer, Inc.' && video_data.params.listen) {
 | |
|     player.on('loadedmetadata', function () {
 | |
|         player.on('timeupdate', function () {
 | |
|             if (player.remainingTime() < player.duration() / 2 && player.remainingTime() >= 2) {
 | |
|                 player.currentTime(player.duration() - 1);
 | |
|             }
 | |
|         });
 | |
|     });
 | |
| }
 | |
| 
 | |
| // Watch on Invidious link
 | |
| if (location.pathname.startsWith('/embed/')) {
 | |
|     const Button = videojs.getComponent('Button');
 | |
|     let watch_on_invidious_button = new Button(player);
 | |
| 
 | |
|     // Create hyperlink for current instance
 | |
|     var redirect_element = document.createElement('a');
 | |
|     redirect_element.setAttribute('href', location.pathname.replace('/embed/', '/watch?v='));
 | |
|     redirect_element.appendChild(document.createTextNode('Invidious'));
 | |
| 
 | |
|     watch_on_invidious_button.el().appendChild(redirect_element);
 | |
|     watch_on_invidious_button.addClass('watch-on-invidious');
 | |
| 
 | |
|     var cb = player.getChild('ControlBar');
 | |
|     cb.addChild(watch_on_invidious_button);
 | |
| }
 | |
| 
 | |
| addEventListener('DOMContentLoaded', function () {
 | |
|     // Save time during redirection on another instance
 | |
|     const changeInstanceLink = document.querySelector('#watch-on-another-invidious-instance > a');
 | |
|     if (changeInstanceLink) changeInstanceLink.addEventListener('click', function () {
 | |
|         changeInstanceLink.href = addCurrentTimeToURL(changeInstanceLink.href);
 | |
|     });
 | |
| });
 | 
