904 lines
26 KiB
JavaScript
904 lines
26 KiB
JavaScript
#include utils.js
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#include rng.js
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#include watcher.js
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const MszVideoEmbedPlayerEvents = function() {
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return [
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'play', 'pause', 'stop',
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'mute', 'volume',
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'rate', 'duration', 'time',
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];
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};
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const MszVideoEstimateAspectRatio = function(width, height) {
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const gcd = function(a, b) { return b ? gcd(b, a % b) : Math.abs(a); };
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const ratio = gcd(width, height);
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width /= ratio;
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height /= ratio;
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return [width, height];
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};
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const MszVideoConstrainSize = function(w, h, mw, mh) {
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mw = mw || 0;
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mh = mh || 0;
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w = w || 0;
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h = h || 0;
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const ar = MszVideoEstimateAspectRatio(w, h);
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if(w > h) {
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if(mw > 0) {
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w = Math.min(mw, w);
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h = Math.ceil((w / ar[0]) * ar[1]);
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if(mh > 0) h = Math.min(mh, h);
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}
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} else {
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if(mh > 0) {
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h = Math.min(mh, h);
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w = Math.ceil((h / ar[1]) * ar[0]);
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if(mw > 0) w = Math.min(mw, w);
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}
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}
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return [w, h];
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};
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const MszVideoEmbed = function(playerOrFrame) {
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const frame = playerOrFrame;
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const player = 'getPlayer' in frame ? frame.getPlayer() : frame;
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const elem = $e({
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attrs: {
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classList: ['embed', 'embed-' + player.getType()],
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},
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child: frame,
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});
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return {
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getElement: function() {
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return elem;
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},
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appendTo: function(target) {
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target.appendChild(elem);
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},
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insertBefore: function(ref) {
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$ib(ref, elem);
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},
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nuke: function() {
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$r(elem);
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},
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replaceElement(target) {
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$ib(target, elem);
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$r(target);
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},
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getFrame: function() {
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return frame;
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},
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getPlayer: function() {
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return player;
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},
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};
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};
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const MszVideoEmbedFrame = function(player, options) {
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options = options || {};
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const icoStatePlay = 'fa-play',
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icoStatePause = 'fa-pause',
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icoStateStop = 'fa-stop';
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const icoVolMute = 'fa-volume-mute',
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icoVolOff = 'fa-volume-off',
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icoVolQuiet = 'fa-volume-down',
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icoVolLoud = 'fa-volume-up';
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const btnPlayPause = $e({
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attrs: {},
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child: {
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tag: 'i',
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attrs: {
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classList: ['fas', 'fa-fw', icoStatePlay],
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},
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}
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});
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const btnStop = $e({
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attrs: {},
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child: {
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tag: 'i',
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attrs: {
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classList: ['fas', 'fa-fw', icoStateStop],
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},
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},
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});
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const numCurrentTime = $e({
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attrs: {},
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});
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const sldProgress = $e({
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attrs: {},
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child: [],
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});
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const numDurationRemaining = $e({
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attrs: {},
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});
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const btnVolMute = $e({
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attrs: {},
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child: {
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tag: 'i',
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attrs: {
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// isMuted === icoVolMute
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// vol < 0.01 === icoVolOff
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// vol < 0.5 === icoVolQuiet
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// vol < 1.0 === icoVolLoud
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classList: ['fas', 'fa-fw', icoVolLoud],
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},
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},
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});
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const elem = $e({
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attrs: {
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className: 'embedvf',
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style: {
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width: player.getWidth().toString() + 'px',
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height: player.getHeight().toString() + 'px',
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},
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},
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child: [
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{
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attrs: {
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className: 'embedvf-player',
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},
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child: player,
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},
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{
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attrs: {
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className: 'embedvf-overlay',
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},
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child: [
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{
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attrs: {
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className: 'embedvf-controls',
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},
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child: [
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btnPlayPause,
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btnStop,
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numCurrentTime,
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sldProgress,
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numDurationRemaining,
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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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return {
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getElement: function() {
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return elem;
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},
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appendTo: function(target) {
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target.appendChild(elem);
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},
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insertBefore: function(ref) {
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$ib(ref, elem);
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},
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nuke: function() {
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$r(elem);
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},
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replaceElement(target) {
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$ib(target, elem);
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$r(target);
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},
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getPlayer: function() {
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return player;
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},
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};
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};
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const MszVideoEmbedPlayer = function(metadata, options) {
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options = options || {};
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const shouldAutoplay = options.autoplay === undefined || options.autoplay,
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haveNativeControls = options.nativeControls !== undefined && options.nativeControls,
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shouldObserveResize = options.observeResize === undefined || options.observeResize;
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const videoAttrs = {
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src: metadata.url,
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style: {},
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};
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if(shouldAutoplay)
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videoAttrs.autoplay = 'autoplay';
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if(haveNativeControls)
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videoAttrs.controls = 'controls';
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const constrainSize = function(w, h, mw, mh) {
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return MszVideoConstrainSize(w, h, mw || options.maxWidth, mh || options.maxHeight);
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};
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const initialSize = constrainSize(
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options.width || metadata.width || 200,
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options.height || metadata.height || 200
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);
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videoAttrs.style.width = initialSize[0].toString() + 'px';
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videoAttrs.style.height = initialSize[1].toString() + 'px';
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const watchers = new MszWatcherCollection;
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watchers.define(MszVideoEmbedPlayerEvents());
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const player = $e({
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tag: 'video',
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attrs: videoAttrs,
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});
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const setSize = function(w, h) {
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const size = constrainSize(w, h, initialSize[0], initialSize[1]);
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player.style.width = size[0].toString() + 'px';
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player.style.height = size[1].toString() + 'px';
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};
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const pub = {
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getElement: function() {
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return player;
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},
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appendTo: function(target) {
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target.appendChild(player);
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},
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insertBefore: function(ref) {
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$ib(ref, player);
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},
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nuke: function() {
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$r(player);
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},
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replaceElement(target) {
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$ib(target, player);
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$r(target);
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},
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getType: function() { return 'external'; },
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getWidth: function() { return width; },
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getHeight: function() { return height; },
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};
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watchers.proxy(pub);
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if(shouldObserveResize)
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player.addEventListener('resize', function() { setSize(player.videoWidth, player.videoHeight); });
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player.addEventListener('play', function() { watchers.call('play', pub); });
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const pPlay = function() { player.play(); };
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pub.play = pPlay;
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const pPause = function() { player.pause(); };
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pub.pause = pPause;
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let stopCalled = false;
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player.addEventListener('pause', function() {
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watchers.call(stopCalled ? 'stop' : 'pause', pub);
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stopCalled = false;
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});
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const pStop = function() {
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stopCalled = true;
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player.pause();
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player.currentTime = 0;
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};
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pub.stop = pStop;
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const pIsPlaying = function() { return !player.paused; };
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pub.isPlaying = pIsPlaying;
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const pIsMuted = function() { return player.muted; };
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pub.isMuted = pIsMuted;
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let lastMuteState = player.muted;
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player.addEventListener('volumechange', function() {
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if(lastMuteState !== player.muted) {
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lastMuteState = player.muted;
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watchers.call('mute', pub, [lastMuteState]);
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} else
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watchers.call('volume', pub, [player.volume]);
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});
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const pSetMuted = function(state) { player.muted = state; };
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pub.setMuted = pSetMuted;
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const pGetVolume = function() { return player.volume; };
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pub.getVolume = pGetVolume;
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const pSetVolume = function(volume) { player.volume = volume; };
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pub.setVolume = pSetVolume;
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const pGetPlaybackRate = function() { return player.playbackRate; };
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pub.getPlaybackRate = pGetPlaybackRate;
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player.addEventListener('ratechange', function() {
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watchers.call('rate', pub, [player.playbackRate]);
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});
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const pSetPlaybackRate = function(rate) { player.playbackRate = rate; };
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pub.setPlaybackRate = pSetPlaybackRate;
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window.addEventListener('durationchange', function() {
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watchers.call('duration', pub, [player.duration]);
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});
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const pGetDuration = function() { return player.duration; };
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pub.getDuration = pGetDuration;
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window.addEventListener('timeupdate', function() {
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watchers.call('time', pub, [player.currentTime]);
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});
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const pGetTime = function() { return player.currentTime; };
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pub.getTime = pGetTime;
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const pSeek = function(time) { player.currentTime = time; };
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pub.seek = pSeek;
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return pub;
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};
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const MszVideoEmbedYouTube = function(metadata, options) {
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options = options || {};
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const ytOrigin = 'https://www.youtube.com',
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playerId = 'yt-' + MszUniqueStr(8),
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shouldAutoplay = options.autoplay === undefined || options.autoplay;
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let embedUrl = 'https://www.youtube.com/embed/' + metadata.youtube_video_id + '?enablejsapi=1';
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embedUrl += '&origin=' + encodeURIComponent(location.origin);
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if(metadata.youtube_start_time)
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embedUrl += '&t=' + encodeURIComponent(metadata.youtube_start_time);
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if(metadata.youtube_playlist) {
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embedUrl += '&list=' + encodeURIComponent(metadata.youtube_playlist);
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if(metadata.youtube_playlist_index)
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embedUrl += '&index=' + encodeURIComponent(metadata.youtube_playlist_index);
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}
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let presetPlaybackRates = undefined,
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isMuted = undefined,
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volume = undefined,
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playbackRate = undefined,
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duration = undefined,
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currentTime = undefined,
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isPlaying = undefined;
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const watchers = new MszWatcherCollection;
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watchers.define(MszVideoEmbedPlayerEvents());
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const player = $e({
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tag: 'iframe',
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attrs: {
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frameborder: 0,
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allow: 'accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture',
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allowfullscreen: 'allowfullscreen',
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src: embedUrl,
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},
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});
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const pub = {
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getElement: function() {
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return player;
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},
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appendTo: function(target) {
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target.appendChild(player);
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},
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insertBefore: function(ref) {
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$ib(ref, player);
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},
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nuke: function() {
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$r(player);
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},
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replaceElement(target) {
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$ib(target, player);
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$r(target);
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},
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getType: function() { return 'youtube'; },
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getWidth: function() { return 560; },
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getHeight: function() { return 315; },
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getPlayerId: function() { return playerId; },
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};
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watchers.proxy(pub);
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const postMessage = function(data) {
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player.contentWindow.postMessage(JSON.stringify(data), ytOrigin);
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};
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const postCommand = function(name, args) {
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postMessage({
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id: playerId,
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event: 'command',
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func: name,
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args: args || [],
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});
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};
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const cmdPlay = function() { postCommand('playVideo'); };
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const cmdPause = function() { postCommand('pauseVideo'); };
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const cmdStop = function() { postCommand('stopVideo'); };
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const cmdMute = function() { postCommand('mute'); };
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const cmdUnMute = function() { postCommand('unMute'); };
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const cmdSetVolume = function(volume) { postCommand('setVolume', [volume * 100]); };
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const cmdSetPlaybackRate = function(rate) { postCommand('setPlaybackRate', [rate]); };
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const cmdSeekTo = function(timecode) { postCommand('seekTo', [timecode, true]); };
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const cmdMuteState = function(state) {
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if(state) cmdMute();
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else cmdUnMute();
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};
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const varIsPlaying = function() { return isPlaying; };
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const varIsMuted = function() { return isMuted; };
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const varVolume = function() { return volume; };
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const varRate = function() { return playbackRate; };
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const varDuration = function() { return duration; };
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const varTime = function() { return currentTime; };
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let lastPlayerState = undefined,
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lastPlayerStateEvent = undefined;
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const handlePlayerState = function(state) {
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let eventName = undefined;
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if(state === 1) {
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isPlaying = true;
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eventName = 'play';
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} else {
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isPlaying = false;
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if(state === 2)
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eventName = 'pause';
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else if(lastPlayerState === -1 && state === 5)
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eventName = 'stop';
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}
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lastPlayerState = state;
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if(eventName !== undefined && eventName !== lastPlayerStateEvent) {
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lastPlayerStateEvent = eventName;
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watchers.call(eventName, pub);
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}
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};
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const handleMuted = function(muted) {
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isMuted = muted;
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watchers.call('mute', pub, [isMuted]);
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};
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const handleVolume = function(value) {
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volume = value / 100;
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watchers.call('volume', pub, [volume]);
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};
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const handleRate = function(rate) {
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playbackRate = rate;
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watchers.call('rate', pub, [playbackRate]);
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};
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const handleDuration = function(time) {
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duration = time;
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watchers.call('duration', pub, [duration]);
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};
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const handleTime = function(time) {
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currentTime = time;
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watchers.call('time', pub, [currentTime]);
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};
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const handlePresetRates = function(rates) {
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presetPlaybackRates = rates;
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};
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const infoHandlers = {
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'playerState': handlePlayerState,
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'muted': handleMuted,
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'volume': handleVolume,
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'playbackRate': handleRate,
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'duration': handleDuration,
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'currentTime': handleTime,
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'availablePlaybackRates': handlePresetRates,
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};
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const processInfo = function(info) {
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for(const name in infoHandlers)
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if(name in info && info[name] !== undefined)
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infoHandlers[name](info[name]);
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};
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window.addEventListener('message', function(ev) {
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if(ev.origin !== ytOrigin || typeof ev.data !== 'string')
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return;
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const data = JSON.parse(ev.data);
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if(!data || data.id !== playerId)
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return;
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if(data.event === 'initialDelivery') {
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if(data.info !== undefined)
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processInfo(data.info);
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} else if(data.event === 'onReady') {
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if(shouldAutoplay)
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cmdPlay();
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} else if(data.event === 'infoDelivery') {
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if(data.info !== undefined)
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processInfo(data.info);
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}
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});
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player.addEventListener('load', function(ev) {
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postMessage({
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id: playerId,
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event: 'listening',
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});
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});
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pub.play = cmdPlay;
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pub.pause = cmdPause;
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pub.stop = cmdStop;
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pub.isPlaying = varIsPlaying;
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pub.isMuted = varIsMuted;
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pub.setMuted = cmdMuteState;
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pub.getVolume = varVolume;
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pub.setVolume = cmdSetVolume;
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pub.getRate = varRate;
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pub.setRate = cmdSetPlaybackRate;
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pub.getDuration = varDuration;
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pub.getTime = varTime;
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pub.seek = cmdSeekTo;
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return pub;
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};
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const MszVideoEmbedNicoNico = function(metadata, options) {
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options = options || {};
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const nndOrigin = 'https://embed.nicovideo.jp',
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playerId = 'nnd-' + MszUniqueStr(8),
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shouldAutoplay = options.autoplay === undefined || options.autoplay;
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let embedUrl = 'https://embed.nicovideo.jp/watch/' + metadata.nicovideo_video_id + '?jsapi=1&playerId=' + playerId;
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if(metadata.nicovideo_start_time)
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embedUrl += '&from=' + encodeURIComponent(metadata.nicovideo_start_time);
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let isMuted = undefined,
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volume = undefined,
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duration = undefined,
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currentTime = undefined,
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isPlaying = false;
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const watchers = new MszWatcherCollection;
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watchers.define(MszVideoEmbedPlayerEvents());
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const player = $e({
|
|
tag: 'iframe',
|
|
attrs: {
|
|
frameborder: 0,
|
|
allow: 'autoplay',
|
|
allowfullscreen: 'allowfullscreen',
|
|
src: embedUrl,
|
|
},
|
|
});
|
|
|
|
const pub = {
|
|
getElement: function() {
|
|
return player;
|
|
},
|
|
appendTo: function(target) {
|
|
target.appendChild(player);
|
|
},
|
|
insertBefore: function(ref) {
|
|
$ib(ref, player);
|
|
},
|
|
nuke: function() {
|
|
$r(player);
|
|
},
|
|
replaceElement(target) {
|
|
$ib(target, player);
|
|
$r(target);
|
|
},
|
|
getType: function() { return 'nicovideo'; },
|
|
getWidth: function() { return 640; },
|
|
getHeight: function() { return 360; },
|
|
getPlayerId: function() { return playerId; },
|
|
};
|
|
|
|
watchers.proxy(pub);
|
|
|
|
const postMessage = function(name, data) {
|
|
if(name === undefined)
|
|
throw 'name must be specified';
|
|
|
|
player.contentWindow.postMessage({
|
|
playerId: playerId,
|
|
sourceConnectorType: 1,
|
|
eventName: name,
|
|
data: data,
|
|
}, nndOrigin);
|
|
};
|
|
|
|
const cmdPlay = function() { postMessage('play'); };
|
|
const cmdPause = function() { postMessage('pause'); };
|
|
const cmdMute = function(state) { postMessage('mute', { mute: state }); };
|
|
const cmdSeek = function(time) { postMessage('seek', { time: time }); };
|
|
const cmdVolumeChange = function(volume) { postMessage('volumeChange', { volume: volume }); };
|
|
|
|
let stopCalled = false;
|
|
const cmdStop = function() {
|
|
stopCalled = true;
|
|
cmdPause();
|
|
cmdSeek(0);
|
|
};
|
|
|
|
const varIsPlaying = function() { return isPlaying; };
|
|
const varIsMuted = function() { return isMuted; };
|
|
const varVolume = function() { return volume; };
|
|
const varDuration = function() { return duration; };
|
|
const varTime = function() { return currentTime; };
|
|
|
|
let lastPlayerStateEvent = undefined;
|
|
const handlePlayerStatus = function(status) {
|
|
let eventName = undefined;
|
|
if(status === 2) {
|
|
isPlaying = true;
|
|
eventName = 'play';
|
|
} else {
|
|
isPlaying = false;
|
|
if(status === 4 || stopCalled) {
|
|
eventName = 'stop';
|
|
stopCalled = false;
|
|
} else if(status === 3)
|
|
eventName = 'pause';
|
|
}
|
|
|
|
if(eventName !== undefined && eventName !== lastPlayerStateEvent) {
|
|
lastPlayerStateEvent = eventName;
|
|
watchers.call(eventName, pub);
|
|
}
|
|
};
|
|
|
|
const handleMuted = function(muted) {
|
|
isMuted = muted;
|
|
watchers.call('mute', pub, [isMuted]);
|
|
};
|
|
|
|
const handleVolume = function(value) {
|
|
volume = value;
|
|
watchers.call('volume', pub, [volume]);
|
|
};
|
|
|
|
const handleDuration = function(time) {
|
|
duration = time / 1000;
|
|
watchers.call('duration', pub, [duration]);
|
|
};
|
|
|
|
const handleTime = function(time) {
|
|
currentTime = time / 1000;
|
|
watchers.call('time', pub, [currentTime]);
|
|
};
|
|
|
|
const metadataHanders = {
|
|
'muted': handleMuted,
|
|
'volume': handleVolume,
|
|
'duration': handleDuration,
|
|
'currentTime': handleTime,
|
|
};
|
|
const statusHandlers = {
|
|
'playerStatus': handlePlayerStatus,
|
|
};
|
|
|
|
const processData = function(handlers, info) {
|
|
for(const name in handlers)
|
|
if(name in info && info[name] !== undefined)
|
|
handlers[name](info[name]);
|
|
};
|
|
|
|
window.addEventListener('message', function(ev) {
|
|
if(ev.origin !== nndOrigin || ev.data.playerId !== playerId)
|
|
return;
|
|
|
|
if(ev.data.eventName === 'loadComplete') {
|
|
if(shouldAutoplay)
|
|
cmdPlay();
|
|
} else if(ev.data.eventName === 'playerMetadataChange') {
|
|
if(ev.data.data !== undefined)
|
|
processData(metadataHanders, ev.data.data);
|
|
} else if(ev.data.eventName === 'statusChange') {
|
|
if(ev.data.data !== undefined)
|
|
processData(statusHandlers, ev.data.data);
|
|
}
|
|
});
|
|
|
|
pub.play = cmdPlay;
|
|
pub.pause = cmdPause;
|
|
pub.stop = cmdStop;
|
|
pub.isPlaying = varIsPlaying;
|
|
pub.isMuted = varIsMuted;
|
|
pub.setMuted = cmdMute;
|
|
pub.getVolume = varVolume;
|
|
pub.setVolume = cmdVolumeChange;
|
|
pub.getDuration = varDuration;
|
|
pub.getTime = varTime;
|
|
pub.seek = cmdSeek;
|
|
|
|
return pub;
|
|
};
|
|
|
|
const MszVideoEmbedPlaceholder = function(metadata, options) {
|
|
options = options || {};
|
|
|
|
if(typeof options.player !== 'function' && typeof options.onclick !== 'function')
|
|
throw 'Neither a player nor an onclick handler were provided.';
|
|
|
|
const shouldAutoSize = options.autosize === undefined || options.autosize;
|
|
|
|
const infoChildren = [];
|
|
|
|
infoChildren.push({
|
|
tag: 'h1',
|
|
attrs: {
|
|
className: 'embedph-info-title',
|
|
},
|
|
child: metadata.title,
|
|
});
|
|
|
|
if(metadata.description) {
|
|
let firstLine = metadata.description.split("\n")[0].trim();
|
|
if(firstLine.length > 300)
|
|
firstLine = firstLine.substring(0, 300).trim() + '...';
|
|
|
|
infoChildren.push({
|
|
tag: 'div',
|
|
attrs: {
|
|
className: 'embedph-info-desc',
|
|
},
|
|
child: firstLine,
|
|
});
|
|
}
|
|
|
|
infoChildren.push({
|
|
tag: 'div',
|
|
attrs: {
|
|
className: 'embedph-info-site',
|
|
},
|
|
child: metadata.site_name,
|
|
});
|
|
|
|
const style = [];
|
|
if(typeof metadata.color !== 'undefined')
|
|
style.push('--embedph-colour: ' + metadata.color);
|
|
|
|
if(!shouldAutoSize) {
|
|
const size = MszVideoConstrainSize(
|
|
options.width || metadata.width || 200,
|
|
options.height || metadata.height || 200,
|
|
options.maxWidth,
|
|
options.maxHeight
|
|
);
|
|
|
|
style.push('width: ' + size[0].toString() + 'px');
|
|
style.push('height: ' + size[1].toString() + 'px');
|
|
}
|
|
|
|
const pub = {};
|
|
|
|
const elem = $e({
|
|
attrs: {
|
|
className: ('embedph embedph-' + (options.type || 'external')),
|
|
style: style.join(';'),
|
|
},
|
|
child: [
|
|
{
|
|
attrs: {
|
|
className: 'embedph-bg',
|
|
},
|
|
child: {
|
|
tag: 'img',
|
|
attrs: {
|
|
src: metadata.image,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
attrs: {
|
|
className: 'embedph-fg',
|
|
},
|
|
child: [
|
|
{
|
|
attrs: {
|
|
className: 'embedph-info',
|
|
},
|
|
child: {
|
|
attrs: {
|
|
className: 'embedph-info-wrap',
|
|
},
|
|
child: [
|
|
{
|
|
attrs: {
|
|
className: 'embedph-info-bar',
|
|
},
|
|
},
|
|
{
|
|
attrs: {
|
|
className: 'embedph-info-body',
|
|
},
|
|
child: infoChildren,
|
|
}
|
|
],
|
|
},
|
|
},
|
|
{
|
|
attrs: {
|
|
className: 'embedph-play',
|
|
onclick: function(ev) {
|
|
if(ev.target.tagName.toLowerCase() === 'a')
|
|
return;
|
|
|
|
if(typeof options.onclick === 'function') {
|
|
options.onclick(ev);
|
|
return;
|
|
}
|
|
|
|
const player = new options.player(metadata, options);
|
|
let frameOrPlayer = player;
|
|
|
|
if(typeof options.frame === 'function')
|
|
frameOrPlayer = new options.frame(player, options);
|
|
|
|
const embed = new MszVideoEmbed(frameOrPlayer);
|
|
if(options.autoembed === undefined || options.autoembed)
|
|
embed.replaceElement(elem);
|
|
|
|
if(typeof options.onembed === 'function')
|
|
options.onembed(embed);
|
|
},
|
|
},
|
|
child: [
|
|
{
|
|
attrs: {
|
|
className: 'embedph-play-internal',
|
|
},
|
|
child: {
|
|
tag: 'i',
|
|
attrs: {
|
|
className: 'fas fa-play fa-4x fa-fw',
|
|
},
|
|
},
|
|
},
|
|
{
|
|
tag: 'a',
|
|
attrs: {
|
|
className: 'embedph-play-external',
|
|
href: metadata.url,
|
|
target: '_blank',
|
|
rel: 'noopener',
|
|
},
|
|
child: ('or watch on ' + metadata.site_name + '?'),
|
|
}
|
|
],
|
|
},
|
|
],
|
|
},
|
|
],
|
|
});
|
|
|
|
pub.getElement = function() { return elem; };
|
|
pub.appendTo = function(target) { target.appendChild(elem); };
|
|
pub.insertBefore = function(ref) { $ib(ref, elem); };
|
|
pub.nuke = function() {
|
|
$r(elem);
|
|
};
|
|
pub.replaceElement = function(target) {
|
|
$ib(target, elem);
|
|
$r(target);
|
|
};
|
|
|
|
return pub;
|
|
};
|