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polymer_1.0.4/bower_components/google-castable-video/google-castable-video.html

Index: polymer_1.0.4/bower_components/google-castable-video/google-castable-video.html
diff --git a/polymer_1.0.4/bower_components/google-castable-video/google-castable-video.html b/polymer_1.0.4/bower_components/google-castable-video/google-castable-video.html
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+<link rel="import" href="../polymer/polymer.html">
+<link rel="import" href="google-cast-sender-api.html">
+
+<!-- TODO(tschaeff):
+- ratechange to change playbackspeed (if even possible)
+-->
+<script>
+  (function() {
+    // Set static variable for the timeupdate delay.
+    var _GOOGLE_CASTABLE_VIDEO_TIMEUPDATE_DELAY = 250;
+/**
+The `google-castable-video` element enables your HTML5 videos to be casted to any Chromecast.
+
+It behaves exactly like an HTML5 video element except for some added methods and events.
+
+Instead of listening for the video element's `timeupdate` event please listen for the `google-castable-video-timeupdate` event. This event is fired if the video is playing locally and on the Chromecast device.
+
+##### Example
+
+    <video is="google-castable-video">
+      <source src="video.mp4" type="video/mp4">
+    </video>
+
+@demo
+*/
+    Polymer({
+
+      is: 'google-castable-video',
+
+      extends: 'video',
+
+      properties: {
+        /**
+         * The appId that references which receiver the Chromecast will load.
+         *
+         * @default chrome.cast.media.DEFAULT_MEDIA_RECEIVER_APP_ID
+         */
+        appId: {
+          type: String,
+          value: null
+        }
+      },
+
+      listeners: {
+        'seeked': '_onSeeked',
+        'volumechange': '_onVolumechange',
+        'timeupdate': '_onTimeupdate'
+      },
+
+      /**
+       * The real paused state for local and cast playback.
+       *
+       * @property bothPaused
+       * @type bool
+       * @default true
+       */
+      _bothPaused: true,
+      get bothPaused() {
+        return this._bothPaused;
+      },
+
+      /**
+       * Sets or returns the current playback position (in seconds).
+       * Since the local video is paused when the video is playing on the Chromecast device
+       * the objects currentTime property doesn't represent the actual currentTime of the video
+       * playing on the Chromecast device. To always get the actual position please use bothCurrentTime.
+       *
+       * @property bothCurrentTime
+       * @type number
+       * @default 0
+       */
+      get bothCurrentTime() {
+        if (this._casting && this._castMedia) {
+          return this._castMedia.getEstimatedTime();
+        } else {
+          return this.currentTime;
+        }
+      },
+
+      set bothCurrentTime(val) {
+        return this.currentTime = val;
+      },
+
+      /**
+       * The mode state depending on whether the video is playing locally or on the cast device.
+       *
+       * @property casting
+       * @type bool
+       * @default false
+       */
+      _casting: false,
+      get casting() {
+        return this._casting;
+      },
+
+      /**
+       * Returns if any Chromecast is available.
+       *
+       * @property receiverAvailable
+       * @type bool
+       * @default false
+       */
+      _receiverAvailable: false,
+      get receiverAvailable() {
+        return this._receiverAvailable;
+      },
+
+      /**
+       * The `chrome.cast.Media` object.
+       *
+       * @property castMedia
+       * @type chrome.cast.Media
+       * @default null
+       */
+      _castMedia: null,
+      get castMedia() {
+        return this._castMedia;
+      },
+
+      /**
+       * The `chrome.cast.Session` object.
+       *
+       * @property session
+       * @type chrome.cast.Session
+       * @default null
+       */
+      _session: null,
+      get session() {
+        return this._session;
+      },
+
+      ready: function() {
+        // Initialize the cast api.
+        window['__onGCastApiAvailable'] = function(loaded, errorInfo) {
+          if (loaded) {
+            this._initializeCastApi();
+          } else {
+            this._triggerError('INITIALIZE_ERROR');
+          }
+        }.bind(this);
+      },
+
+      // Called internally when the cast sender api has been loaded.
+      _initializeCastApi: function() {
+        if (this.appId === null || typeof this.appId === "undefined") {
+          this.appId = chrome.cast.media.DEFAULT_MEDIA_RECEIVER_APP_ID;
+          // TODO ... process for selecting styled media receiver
+        }
+        var sessionRequest = new chrome.cast.SessionRequest(this.appId);
+        var apiConfig = new chrome.cast.ApiConfig(sessionRequest,
+          function(e){
+            // The sessionListener.
+            this._triggerCasting(true);
+            this._session = e;
+            if (this._session.media.length) {
+              this._onMediaDiscovered.call(this, 'onRequestSessionSuccess', this._session.media[0]);
+            }
+            // Bind the session update listener.
+            this._session.addUpdateListener(this._sessionUpdateListener.bind(this));
+            // Set interval for cast timeupdate.
+            this._timeupdateInterval = setInterval(function(){
+              if (this._castMedia && this._castMedia.playerState === 'PLAYING') {
+                this._triggerTimeupdate(this._castMedia.getEstimatedTime());
+                this._bothPaused = false;
+              } else {
+                this._bothPaused = true;
+              }
+            }.bind(this), _GOOGLE_CASTABLE_VIDEO_TIMEUPDATE_DELAY);
+            // Start playing on cast if playing locally.
+            if (!this.paused) {
+              this.play();
+              this.pause(false);
+            }
+          }.bind(this),
+          function(e){
+            // The receiverListener
+            if (e === chrome.cast.ReceiverAvailability.AVAILABLE) {
+              this._triggerAvailability(true);
+            } else {
+              this._triggerAvailability(false);
+            }
+          }.bind(this));
+        chrome.cast.initialize(apiConfig, function(){
+          // The onInitSuccess method.
+          /**
+           * The `google-castable-video-initialized` event is fired when
+           * the cast client API has been initialized.
+           *
+           * @event google-castable-video-initialized
+           */
+          this.fire('google-castable-video-initialized');
+        }.bind(this), function(){
+          this._triggerError('INITIALIZE_ERROR');
+        });
+      },
+
+      /**
+      * Call this when the user clicks the cast icon.
+      * Opens the cast extension to create a session with the selected receiver.
+      *
+      * @method launchSessionManager
+      */
+      launchSessionManager: function(){
+        if (this._receiverAvailable) {
+          // Create the session with the receiver.
+          chrome.cast.requestSession(function(e){
+            // The onRequestSessionSuccess handler gets executed when we're connected.
+            this._triggerCasting(true);
+            this._session = e;
+            this._session.addUpdateListener(this._sessionUpdateListener.bind(this));
+            // If video is playing start playing on chromecast at same position.
+            if (!this.paused) {
+              this.play();
+              this.pause(false);
+            }
+            // Set interval for cast timeupdate.
+            this._timeupdateInterval = setInterval(function(){
+              if (this._castMedia && this._castMedia.playerState === 'PLAYING') {
+                this._triggerTimeupdate(this._castMedia.getEstimatedTime());
+                this._bothPaused = false;
+              } else {
+                this._bothPaused = true;
+              }
+            }.bind(this), _GOOGLE_CASTABLE_VIDEO_TIMEUPDATE_DELAY);
+          }.bind(this));
+        }
+      },
+
+      // Internal method gets called when the cast session status changes.
+      _sessionUpdateListener: function(isAlive){
+        if (!isAlive) {
+          this._triggerCasting(false);
+          this._synchronizeMedia(true);
+          // If video was playing on the receiver start playing locally.
+          if (this._castMedia.playerState === 'PLAYING') {
+            this.play();
+          }
+          this._castMedia = null;
+          this._session = null;
+          // The session died so remove the timeupdate interval.
+          clearInterval(this._timeupdateInterval);
+        }
+      },
+
+      // Internal method gets called when media was set through `launchsession`
+      // or was already playing on cast device.
+      _onMediaDiscovered: function(how, media) {
+        this._castMedia = media;
+        if (how === 'loadMedia') {
+          this._synchronizeMedia(false);
+        }
+      },
+
+      // Internal method to synchronize the media objects.
+      _synchronizeMedia: function(castMaster){
+        if (castMaster) {
+          var position = this._castMedia.getEstimatedTime();
+          this.currentTime = position;
+        } else {
+          var position = this.currentTime;
+          var req = new chrome.cast.media.SeekRequest();
+          req.currentTime = position;
+          this._castMedia.seek(req);
+        }
+      },
+      /**
+       * Call the `play` method from your controls.
+       *
+       * @method play
+       */
+      play: function(cast){
+        if ((cast != undefined && !cast) || (!cast && !this._casting)) {
+          Object.getPrototypeOf(Object.getPrototypeOf(this)).play.call(this);
+          // this.super();
+        } else {
+          // Handle cast media.
+          if (!this._castMedia) {
+            var mediaInfo = new chrome.cast.media.MediaInfo(this.currentSrc);
+            [].forEach.call( // loop through DOM video sources to find the contentType of the current source
+              document.querySelectorAll("video source"),
+              function(el) {
+               // the HTML5 video API resolves the DOM 'src' attribute to an absolute URL for the value of 'currentSrc'; to make it matchable, then, we can only rely on the last segment of the URL
+               if (el.getAttribute("src").split('/').pop()===this.currentSrc.split('/').pop()) {
+                mediaInfo.contentType = el.getAttribute('type');
+               }
+              }
+            );
+            var request = new chrome.cast.media.LoadRequest(mediaInfo);
+            this._session.loadMedia(request,
+              this._onMediaDiscovered.bind(this, 'loadMedia'),
+              function(e){
+                this._triggerError('LOAD_MEDIA_ERROR');
+              }.bind(this)
+            );
+          } else {
+            this._castMedia.play();
+          }
+        }
+      },
+
+      /**
+       * Call the `pause` method from your controls.
+       *
+       * @method pause
+       */
+      pause: function(cast){
+        if ((cast != undefined && !cast) || (!cast && !this._casting)) {
+          Object.getPrototypeOf(Object.getPrototypeOf(this)).pause.call(this);
+          // this.super();
+        } else {
+          this._castMedia.pause();
+        }
+      },
+
+      /**
+       * The `google-castable-video-timeupdate` event is fired whenever
+       * the video's playback position changes.
+       *
+       * @event google-castable-video-timeupdate
+       * @param {Object} detail
+       *   @param {number} detail.currentTime The current video position.
+       */
+      _triggerTimeupdate: function(position) {
+        this.fire('google-castable-video-timeupdate', { currentTime: position });
+      },
+
+      /**
+       * The `google-castable-video-error` event is fired whenever
+       * an error occurs.
+       *
+       * @event google-castable-video-error
+       * @param {Object} detail
+       *   @param {string} detail.error The error type.
+       */
+      _triggerError: function(description) {
+        this.fire('google-castable-video-error', { error: description });
+      },
+
+      /**
+       * The `google-castable-video-receiver-status` event is fired whenever
+       * the availability of Chromecasts changes. Use this to show or hide the cast icon.
+       *
+       * @event google-castable-video-receiver-status
+       * @param {Object} detail
+       *   @param {bool} detail.available Shows if receivers are available.
+       */
+      _triggerAvailability: function(availability) {
+        this._receiverAvailable = availability;
+        this.fire('google-castable-video-receiver-status', { available: availability });
+      },
+
+      /**
+       * The `google-castable-video-casting` event is fired whenever the
+       * connection status to a Chromecast changes. Use this to change the cast icon.
+       *
+       * @event google-castable-video-casting
+       * @param {Object} detail
+       *   @param {bool} detail.casting True if connected.
+       */
+      _triggerCasting: function(casting) {
+        this._casting = casting;
+        this.fire('google-castable-video-casting', { casting: casting });
+      },
+
+      // Redirecting `seeked` event to Chromecast.
+      _onSeeked: function(){
+        if (this._casting) {
+          var req = new chrome.cast.media.SeekRequest();
+          req.currentTime = this.currentTime;
+          this._castMedia.seek(req);
+        }
+      },
+
+      // Redirecting `volumechange` event to Chromecast.
+      _onVolumechange: function(){
+        if (this._casting) {
+          var volume = new chrome.cast.Volume(this.volume, this.muted);
+          var volumeRequest = new chrome.cast.media.VolumeRequest(volume);
+          this._castMedia.setVolume(volumeRequest);
+        }
+      },
+
+      // Redirecting `timeupdate` event to `google-castable-video-timeupdate`.
+      _onTimeupdate: function(){
+        this._triggerTimeupdate(this.currentTime);
+        this._bothPaused = this.paused;
+      }
+    });
+  })();
+</script>