[rygel] mpris: Ignore read-only MPRIS intstances

[Jens Georg <jensgeorg src gnome org>]

commit 5eac952e69d06b7d650a8b1cd6403f63b222eca7
Author: Jens Georg <jensg openismus com>
Date:   Mon Oct 7 17:16:22 2013 +0200

    mpris: Ignore read-only MPRIS intstances

 src/plugins/mpris/rygel-mpris-interfaces.vala     |    1 +
 src/plugins/mpris/rygel-mpris-plugin-factory.vala |    7 +++++++
 2 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/mpris/rygel-mpris-interfaces.vala b/src/plugins/mpris/rygel-mpris-interfaces.vala
index 7be0353..f56ebda 100644
--- a/src/plugins/mpris/rygel-mpris-interfaces.vala
+++ b/src/plugins/mpris/rygel-mpris-interfaces.vala
@@ -43,6 +43,7 @@ public interface Rygel.MPRIS.MediaPlayer.PlayerProxy : DBusProxy,
     public abstract double volume { get; set; }
     public abstract int64 position { get; }
     public abstract bool can_seek { get; }
+    public abstract bool can_control { get; }
     public abstract HashTable<string,Variant> metadata { owned get; }
 
     public abstract void pause () throws DBusError;
diff --git a/src/plugins/mpris/rygel-mpris-plugin-factory.vala 
b/src/plugins/mpris/rygel-mpris-plugin-factory.vala
index 91c4714..cb5d098 100644
--- a/src/plugins/mpris/rygel-mpris-plugin-factory.vala
+++ b/src/plugins/mpris/rygel-mpris-plugin-factory.vala
@@ -127,6 +127,13 @@ public class Rygel.MPRIS.PluginFactory {
                                                              service_name,
                                                              MEDIA_PLAYER_PATH);
 
+        if (!player.can_control) {
+            message (_("MPRIS interface at %s is read-only. Ignoring."),
+                     service_name);
+
+            return;
+        }
+
         var plugin = new MPRIS.Plugin (service_name, player);
 
         this.loader.add_plugin (plugin);