[rygel] mpris: Don't abort if client uses wrong type

[Jens Georg <jensgeorg src gnome org>]

commit 1eda2dce4d32c25d6c0efbc1086413fea8b1019f
Author: Jens Georg <mail jensge org>
Date:   Sat Mar 17 10:09:02 2012 +0100

    mpris: Don't abort if client uses wrong type
    
    Check that we always get a{sv} for property changes.

 src/plugins/mpris/rygel-mpris-player.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/mpris/rygel-mpris-player.vala b/src/plugins/mpris/rygel-mpris-player.vala
index 3e7e1d7..324b368 100644
--- a/src/plugins/mpris/rygel-mpris-player.vala
+++ b/src/plugins/mpris/rygel-mpris-player.vala
@@ -155,6 +155,10 @@ public class Rygel.MPRIS.Player : GLib.Object, Rygel.MediaPlayer {
     private void on_properties_changed (DBusProxy actual_player,
                                         Variant   changed,
                                         string[]  invalidated) {
+        if (!changed.get_type().equal (VariantType.VARDICT)) {
+            return;
+        }
+
         foreach (var changed_prop in changed) {
             var key = (string) changed_prop.get_child_value (0);
             var value = changed_prop.get_child_value (1).get_child_value (0);