728 行
24 KiB
JavaScript
728 行
24 KiB
JavaScript
'use strict';
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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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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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if (player_data.aspect_ratio) {
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options.aspectRatio = player_data.aspect_ratio;
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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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var save_player_pos_key = 'save_player_pos';
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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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var player = videojs('player', options);
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player.on('error', function () {
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if (video_data.params.quality === 'dash') return;
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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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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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// 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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player.load();
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if (currentTime > 0.5) currentTime -= 0.5;
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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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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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* 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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var shareOptions = {
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socials: ['fbFeed', 'tw', 'reddit', 'email'],
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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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});
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}
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// Detect mobile users and initialize mobileUi for better UX
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// Detection code taken from https://stackoverflow.com/a/20293441
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function isMobile() {
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try{ document.createEvent('TouchEvent'); return true; }
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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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var buttons = ['playToggle', 'volumePanel', 'captionsButton'];
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if (!video_data.params.listen && video_data.params.quality === 'dash') buttons.push('audioTrackButton');
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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');
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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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});
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buttons.slice(1).forEach(function (child) {operations_bar.addChild(child);});
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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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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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// 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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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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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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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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},
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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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}
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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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/**
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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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/**
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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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*/
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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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var cookieValue = getCookieValue('PREFS');
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var cookieData;
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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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var ipRegex = /^((\d+\.){3}\d+|[A-Fa-f0-9]*:[A-Fa-f0-9:]*:[A-Fa-f0-9:]+)$/;
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var domainUsed = location.hostname;
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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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var secure = location.protocol.startsWith("https") ? " Secure;" : "";
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document.cookie = 'PREFS=' + cookieData + '; SameSite=Lax; path=/; domain=' +
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domainUsed + '; expires=' + date.toGMTString() + ';' + secure;
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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());
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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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});
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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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});
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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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if(!hasTimeParam) set_seconds_after_start(rememberedTime);
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player.on('timeupdate', function () {
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const raw = player.currentTime();
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const time = Math.floor(raw);
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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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}
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});
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}
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else remove_all_video_times();
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if (video_data.params.autoplay) {
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var bpb = player.getChild('bigPlayButton');
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bpb.hide();
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player.ready(function () {
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new Promise(function (resolve, reject) {
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setTimeout(function () {resolve(1);}, 1);
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}).then(function (result) {
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var promise = player.play();
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if (promise !== undefined) {
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promise.then(function () {
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}).catch(function (error) {
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bpb.show();
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});
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}
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});
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});
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}
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if (!video_data.params.listen && video_data.params.quality === 'dash') {
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player.httpSourceSelector();
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if (video_data.params.quality_dash !== 'auto') {
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player.ready(function () {
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player.on('loadedmetadata', function () {
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const qualityLevels = Array.from(player.qualityLevels()).sort(function (a, b) {return a.height - b.height;});
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let targetQualityLevel;
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switch (video_data.params.quality_dash) {
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case 'best':
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targetQualityLevel = qualityLevels.length - 1;
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break;
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case 'worst':
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targetQualityLevel = 0;
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break;
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default:
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const targetHeight = parseInt(video_data.params.quality_dash);
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for (let i = 0; i < qualityLevels.length; i++) {
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if (qualityLevels[i].height <= targetHeight)
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targetQualityLevel = i;
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else
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break;
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}
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}
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qualityLevels.forEach(function (level, index) {
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level.enabled = (index === targetQualityLevel);
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});
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});
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});
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}
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}
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player.vttThumbnails({
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src: '/api/v1/storyboards/' + video_data.id + '?height=90',
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showTimestamp: true
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});
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// Enable annotations
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if (!video_data.params.listen && video_data.params.annotations) {
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addEventListener('load', function (e) {
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addEventListener('__ar_annotation_click', function (e) {
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const url = e.detail.url,
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target = e.detail.target,
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seconds = e.detail.seconds;
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var path = new URL(url);
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if (path.href.startsWith('https://www.youtube.com/watch?') && seconds) {
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path.search += '&t=' + seconds;
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}
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path = path.pathname + path.search;
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if (target === 'current') {
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location.href = path;
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} else if (target === 'new') {
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open(path, '_blank');
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}
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});
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helpers.xhr('GET', '/api/v1/annotations/' + video_data.id, {
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responseType: 'text',
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timeout: 60000
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}, {
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on200: function (response) {
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var video_container = document.getElementById('player');
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videojs.registerPlugin('youtubeAnnotationsPlugin', youtubeAnnotationsPlugin);
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if (player.paused()) {
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player.one('play', function (event) {
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player.youtubeAnnotationsPlugin({ annotationXml: response, videoContainer: video_container });
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});
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} else {
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player.youtubeAnnotationsPlugin({ annotationXml: response, videoContainer: video_container });
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}
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}
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});
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});
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}
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function change_volume(delta) {
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const curVolume = player.volume();
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let newVolume = curVolume + delta;
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newVolume = helpers.clamp(newVolume, 0, 1);
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player.volume(newVolume);
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}
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function toggle_muted() {
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player.muted(!player.muted());
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}
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function skip_seconds(delta) {
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const duration = player.duration();
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const curTime = player.currentTime();
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let newTime = curTime + delta;
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newTime = helpers.clamp(newTime, 0, duration);
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player.currentTime(newTime);
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}
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function set_seconds_after_start(delta) {
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const start = video_data.params.video_start;
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player.currentTime(start + delta);
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}
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function save_video_time(seconds) {
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const all_video_times = get_all_video_times();
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all_video_times[video_data.id] = seconds;
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helpers.storage.set(save_player_pos_key, all_video_times);
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}
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function get_video_time() {
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return get_all_video_times()[video_data.id] || 0;
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}
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function get_all_video_times() {
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return helpers.storage.get(save_player_pos_key) || {};
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}
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function remove_all_video_times() {
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helpers.storage.remove(save_player_pos_key);
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}
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function set_time_percent(percent) {
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const duration = player.duration();
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const newTime = duration * (percent / 100);
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player.currentTime(newTime);
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}
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function play() { player.play(); }
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function pause() { player.pause(); }
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function stop() { player.pause(); player.currentTime(0); }
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function toggle_play() { player.paused() ? play() : pause(); }
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const toggle_captions = (function () {
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let toggledTrack = null;
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function bindChange(onOrOff) {
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player.textTracks()[onOrOff]('change', function (e) {
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toggledTrack = null;
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});
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}
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// Wrapper function to ignore our own emitted events and only listen
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// to events emitted by Video.js on click on the captions menu items.
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function setMode(track, mode) {
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bindChange('off');
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track.mode = mode;
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setTimeout(function () {
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bindChange('on');
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}, 0);
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}
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bindChange('on');
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return function () {
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if (toggledTrack !== null) {
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if (toggledTrack.mode !== 'showing') {
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setMode(toggledTrack, 'showing');
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} else {
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setMode(toggledTrack, 'disabled');
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}
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toggledTrack = null;
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return;
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}
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// Used as a fallback if no captions are currently active.
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// TODO: Make this more intelligent by e.g. relying on browser language.
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let fallbackCaptionsTrack = null;
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const tracks = player.textTracks();
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for (let i = 0; i < tracks.length; i++) {
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const track = tracks[i];
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if (track.kind !== 'captions') continue;
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if (fallbackCaptionsTrack === null) {
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fallbackCaptionsTrack = track;
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}
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if (track.mode === 'showing') {
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setMode(track, 'disabled');
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toggledTrack = track;
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return;
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}
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|
}
|
|
|
|
// 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);
|
|
});
|
|
});
|