257 lines
10 KiB
JavaScript
257 lines
10 KiB
JavaScript
// ==========================================================================
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// YouTube plugin
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// ==========================================================================
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import utils from './../utils';
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import controls from './../controls';
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import ui from './../ui';
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/* Object.defineProperty(input, "value", {
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get: function() {return this._value;},
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set: function(v) {
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// Do your stuff
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this._value = v;
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}
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}); */
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const youtube = {
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// Setup YouTube
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setup() {
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const videoId = utils.parseYouTubeId(this.embedId);
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// Remove old containers
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const containers = utils.getElements.call(this, `[id^="${this.type}-"]`);
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Array.from(containers).forEach(utils.removeElement);
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// Add embed class for responsive
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utils.toggleClass(this.elements.wrapper, this.config.classNames.embed, true);
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// Set ID
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this.media.setAttribute('id', utils.generateId(this.type));
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// Setup API
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if (utils.is.object(window.YT)) {
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youtube.ready.call(this, videoId);
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} else {
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// Load the API
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utils.loadScript(this.config.urls.youtube.api);
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// Setup callback for the API
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window.onYouTubeReadyCallbacks = window.onYouTubeReadyCallbacks || [];
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// Add to queue
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window.onYouTubeReadyCallbacks.push(() => {
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youtube.ready.call(this, videoId);
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});
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// Set callback to process queue
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window.onYouTubeIframeAPIReady = () => {
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window.onYouTubeReadyCallbacks.forEach(callback => {
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callback();
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});
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};
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}
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},
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// Handle YouTube API ready
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ready(videoId) {
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const player = this;
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// Setup instance
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// https://developers.google.com/youtube/iframe_api_reference
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player.embed = new window.YT.Player(player.media.id, {
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videoId,
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playerVars: {
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autoplay: player.config.autoplay ? 1 : 0, // Autoplay
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controls: player.supported.ui ? 0 : 1, // Only show controls if not fully supported
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rel: 0, // No related vids
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showinfo: 0, // Hide info
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iv_load_policy: 3, // Hide annotations
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modestbranding: 1, // Hide logos as much as possible (they still show one in the corner when paused)
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disablekb: 1, // Disable keyboard as we handle it
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playsinline: 1, // Allow iOS inline playback
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// Tracking for stats
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origin: window && window.location.hostname,
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widget_referrer: window && window.location.href,
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// Captions is flaky on YouTube
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// cc_load_policy: (this.captions.active ? 1 : 0),
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// cc_lang_pref: 'en',
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},
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events: {
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onError(event) {
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utils.dispatchEvent.call(player, player.media, 'error', true, {
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code: event.data,
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embed: event.target,
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});
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},
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onPlaybackQualityChange(event) {
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// Get the instance
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const instance = event.target;
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// Get current quality
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player.media.quality = instance.getPlaybackQuality();
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utils.dispatchEvent.call(player, player.media, 'qualitychange');
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},
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onPlaybackRateChange(event) {
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// Get the instance
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const instance = event.target;
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// Get current speed
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player.media.playbackRate = instance.getPlaybackRate();
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utils.dispatchEvent.call(player, player.media, 'ratechange');
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},
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onReady(event) {
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// Get the instance
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const instance = event.target;
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// Create a faux HTML5 API using the YouTube API
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player.media.play = () => {
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instance.playVideo();
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player.media.paused = false;
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};
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player.media.pause = () => {
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instance.pauseVideo();
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player.media.paused = true;
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};
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player.media.stop = () => {
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instance.stopVideo();
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player.media.paused = true;
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};
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player.media.duration = instance.getDuration();
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player.media.paused = true;
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player.media.muted = instance.isMuted();
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player.media.currentTime = 0;
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// Get available speeds
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if (player.config.controls.includes('settings') && player.config.settings.includes('speed')) {
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controls.setSpeedMenu.call(player, instance.getAvailablePlaybackRates());
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}
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// Set title
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player.config.title = instance.getVideoData().title;
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// Set the tabindex to avoid focus entering iframe
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if (player.supported.ui) {
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player.media.setAttribute('tabindex', -1);
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}
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// Rebuild UI
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ui.build.call(player);
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utils.dispatchEvent.call(player, player.media, 'timeupdate');
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utils.dispatchEvent.call(player, player.media, 'durationchange');
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// Reset timer
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window.clearInterval(player.timers.buffering);
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// Setup buffering
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player.timers.buffering = window.setInterval(() => {
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// Get loaded % from YouTube
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player.media.buffered = instance.getVideoLoadedFraction();
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// Trigger progress only when we actually buffer something
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if (player.media.lastBuffered === null || player.media.lastBuffered < player.media.buffered) {
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utils.dispatchEvent.call(player, player.media, 'progress');
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}
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// Set last buffer point
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player.media.lastBuffered = player.media.buffered;
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// Bail if we're at 100%
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if (player.media.buffered === 1) {
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window.clearInterval(player.timers.buffering);
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// Trigger event
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utils.dispatchEvent.call(player, player.media, 'canplaythrough');
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}
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}, 200);
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},
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onStateChange(event) {
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// Get the instance
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const instance = event.target;
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// Reset timer
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window.clearInterval(player.timers.playing);
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// Handle events
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// -1 Unstarted
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// 0 Ended
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// 1 Playing
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// 2 Paused
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// 3 Buffering
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// 5 Video cued
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switch (event.data) {
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case 0:
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// YouTube doesn't support loop for a single video, so mimick it.
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if (player.config.loop.active) {
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// YouTube needs a call to `stopVideo` before playing again
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instance.stopVideo();
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instance.playVideo();
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break;
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}
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player.media.paused = true;
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utils.dispatchEvent.call(player, player.media, 'ended');
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break;
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case 1:
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player.media.paused = false;
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// If we were seeking, fire seeked event
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if (player.media.seeking) {
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utils.dispatchEvent.call(player, player.media, 'seeked');
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}
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player.media.seeking = false;
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utils.dispatchEvent.call(player, player.media, 'play');
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utils.dispatchEvent.call(player, player.media, 'playing');
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// Poll to get playback progress
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player.timers.playing = window.setInterval(() => {
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player.media.currentTime = instance.getCurrentTime();
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utils.dispatchEvent.call(player, player.media, 'timeupdate');
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}, 100);
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// Check duration again due to YouTube bug
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// https://github.com/sampotts/plyr/issues/374
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// https://code.google.com/p/gdata-issues/issues/detail?id=8690
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if (player.media.duration !== instance.getDuration()) {
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player.media.duration = instance.getDuration();
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utils.dispatchEvent.call(player, player.media, 'durationchange');
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}
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// Get quality
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controls.setQualityMenu.call(player, instance.getAvailableQualityLevels());
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break;
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case 2:
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player.media.paused = true;
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utils.dispatchEvent.call(player, player.media, 'pause');
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break;
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default:
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break;
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}
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utils.dispatchEvent.call(player, player.elements.container, 'statechange', false, {
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code: event.data,
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});
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},
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},
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});
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},
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};
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export default youtube;
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