[banshee] [Nereid] Let sources override double click behavior

[Gabriel Burt <gburt src gnome org>]

commit 7038c4ab66fda457606531713c22fd6700b522d8
Author: Gabriel Burt <gabriel burt gmail com>
Date:   Fri May 14 14:21:00 2010 -0700

    [Nereid] Let sources override double click behavior
    
    So the Audiobook library can, instead of starting to play, return to the
    grid view.

 src/Clients/Nereid/Nereid/PlayerInterface.cs |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/Clients/Nereid/Nereid/PlayerInterface.cs b/src/Clients/Nereid/Nereid/PlayerInterface.cs
index 2d89650..74b4a23 100644
--- a/src/Clients/Nereid/Nereid/PlayerInterface.cs
+++ b/src/Clients/Nereid/Nereid/PlayerInterface.cs
@@ -380,7 +380,10 @@ namespace Nereid
 
             source_view.RowActivated += delegate {
                 Source source = ServiceManager.SourceManager.ActiveSource;
-                if (source is ITrackModelSource) {
+                var handler = source.Properties.Get<System.Action> ("ActivationAction");
+                if (handler != null) {
+                    handler ();
+                } else if (source is ITrackModelSource) {
                     ServiceManager.PlaybackController.NextSource = (ITrackModelSource)source;
                     // Allow changing the play source without stopping the current song by
                     // holding ctrl when activating a source. After the song is done, playback will