Support for multiple media files

This enables support for starting media player with more than one file path specified. When a file playback finishes, next is loaded automatically.

clapper_src/app.js

@@ -264,10 +264,8 @@ var App = GObject.registerClass({
          this.player.widget.disconnect(this.playerDrawSignal);
          this.emit('ready', true);
 
-         if(!this.playlist.length)
+         if(this.playlist.length)
-            return;
+            this.player.set_playlist(this.playlist);
-
-         this.player.set_media(this.playlist[0]);
     }
 
     _onPlayerStateChanged(self, state)

clapper_src/player.js

@@ -57,8 +57,12 @@ class ClapperPlayer extends GstPlayer.Player
         this.widget = gtkglsink.widget;
         this.state = GstPlayer.PlayerState.STOPPED;
 
-        this.connect('state_changed', this._onStateChanged.bind(this));
+        this._playlist = [];
-        this.connect('uri_loaded', this._onUriLoaded.bind(this));
+        this._trackId = 0;
+
+        this.connect('state-changed', this._onStateChanged.bind(this));
+        this.connect('uri-loaded', this._onUriLoaded.bind(this));
+        this.connect('end-of-stream', this._onStreamEnded.bind(this));
         this.widget.connect('destroy', this._onWidgetDestroy.bind(this));
     }
 
@@ -83,6 +87,22 @@ class ClapperPlayer extends GstPlayer.Player
         this.set_uri(uri);
     }
 
+    set_playlist(playlist)
+    {
+        if(!Array.isArray(playlist))
+            return;
+
+        this._trackId = 0;
+        this._playlist = playlist;
+
+        this.set_media(this._playlist[0]);
+    }
+
+    get_playlist()
+    {
+        return this._playlist;
+    }
+
     seek_seconds(position)
     {
         this.seek(position * 1000000000);
@@ -115,6 +135,14 @@ class ClapperPlayer extends GstPlayer.Player
             this.loop.quit();
     }
 
+    _onStreamEnded(player)
+    {
+        this._trackId++;
+
+        if(this._trackId < this._playlist.length)
+            this.set_media(this._playlist[this._trackId]);
+    }
+
     _onUriLoaded()
     {
         this.play();