moving in the right direction, registration happening on dbus watching

1 files changed, 76 insertions, 0 deletions

diff --git a/src/mpris2-watcher.vala b/src/mpris2-watcher.vala
new file mode 100644
index 0000000..55212ec
--- /dev/null
+++ b/src/mpris2-watcher.vala
@@ -0,0 +1,76 @@
+/*
+Copyright 2010 Canonical Ltd.
+
+Authors:
+    Conor Curran <conor.curran@canonical.com>
+
+This program is free software: you can redistribute it and/or modify it 
+under the terms of the GNU General Public License version 3, as published 
+by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful, but 
+WITHOUT ANY WARRANTY; without even the implied warranties of 
+MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR 
+PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along 
+with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// TODO: Until match rules are properly supported in vala we need to explicitly
+//       watch for each client inorder to facilitate proper registration.
+
+public class Mpris2Watcher : GLib.Object
+{
+  public MusicPlayerBridge the_bridge {get; construct;}	
+  const string BANSHEE_BUS_NAME = "org.mpris.MediaPlayer2.banshee";
+	private MprisRoot mpris2_root;
+  private DBusConnection connection;
+  
+  public Mpris2Watcher ( MusicPlayerBridge bridge )
+  {
+    GLib.Object(the_bridge: bridge);
+  }
+  
+  construct{
+    try {
+      this.connection = Bus.get_sync ( BusType.SESSION );
+      GLib.BusNameAppearedCallback banshee_change_cb = (GLib.BusNameAppearedCallback)banshee_appeared;
+      GLib.BusNameVanishedCallback banshee_gone_cb = (GLib.BusNameVanishedCallback)banshee_disappeared;
+      Bus.watch_name_on_connection ( this.connection, 
+                                     BANSHEE_BUS_NAME,
+                                     BusNameWatcherFlags.AUTO_START,                      
+                                     banshee_change_cb,
+                                     banshee_gone_cb );
+    }
+    catch ( IOError e ){
+      warning( "Mpris2watcher could not set up a watch for mpris clients appearing on the bus: %s",
+               e.message );
+    }    
+  }
+
+  private void banshee_appeared ( GLib.DBusConnection connection,
+                                  string name,
+                                  string name_owner )
+  {
+    try {
+		  this.mpris2_root = Bus.get_proxy_sync ( BusType.SESSION,
+                                              BANSHEE_BUS_NAME,
+			                                        "/org/mpris/MediaPlayer2" );
+      this.the_bridge.client_has_become_available ( this.mpris2_root.DesktopEntry );
+      debug ( "On Name Appeared - name %s, name_owner %s", this.mpris2_root.DesktopEntry, name_owner );    
+    }
+    catch ( IOError e ){
+      warning( "Mpris2watcher could not instantiate an mpris root for banshee: %s",
+               e.message );
+    }    
+  }
+
+  private void banshee_disappeared ( GLib.DBusConnection connection,
+                                     string name,
+                                     string name_owner )
+  {
+    debug ( "On Name Disappeared - name %s, name_owner %s", name, name_owner );
+  }
+  
+}
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