[banshee] Restart songs using multimedia keys (bgo#607067)

[Alexander Kojevnikov <alexk src gnome org>]

commit e9f0c5aea9eb24fb409f478106def3518c7ed7a0
Author: Alexander Kojevnikov <alexander kojevnikov com>
Date:   Mon Jan 18 15:59:11 2010 +1100

    Restart songs using multimedia keys (bgo#607067)
    
    When pressing the "Previous" button in the UI we restart the playing song
    if its position is more than 4 seconds. Use the same logic when "Previous"
    button is pressed on the multimedia keyboard.

 .../PlaybackControllerService.cs                   |   14 ++++++++++++++
 .../Banshee.Gui/PlaybackActions.cs                 |    7 +------
 .../MultimediaKeysService.cs                       |    2 +-
 3 files changed, 16 insertions(+), 7 deletions(-)
---
diff --git a/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs b/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs
index 6625cde..c224ce3 100644
--- a/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs
+++ b/src/Core/Banshee.Services/Banshee.PlaybackController/PlaybackControllerService.cs
@@ -253,6 +253,20 @@ namespace Banshee.PlaybackController
             OnTransition ();
         }
 
+        public void RestartOrPrevious ()
+        {
+            const int delay = 4000; // ms
+            if (player_engine.Position < delay) {
+                Previous ();
+            } else {
+                var track = player_engine.CurrentTrack;
+                if (track != null) {
+                    player_engine.Close ();
+                    player_engine.OpenPlay (track);
+                }
+            }
+        }
+
         bool IBasicPlaybackController.First ()
         {
             if (Source.Count > 0) {
diff --git a/src/Core/Banshee.ThickClient/Banshee.Gui/PlaybackActions.cs b/src/Core/Banshee.ThickClient/Banshee.Gui/PlaybackActions.cs
index 4efe0d9..e7c04b1 100644
--- a/src/Core/Banshee.ThickClient/Banshee.Gui/PlaybackActions.cs
+++ b/src/Core/Banshee.ThickClient/Banshee.Gui/PlaybackActions.cs
@@ -215,12 +215,7 @@ namespace Banshee.Gui
 
         private void OnPreviousAction (object o, EventArgs args)
         {
-            const int delay = 4000; // ms
-            if (ServiceManager.PlayerEngine.Position < delay) {
-                ServiceManager.PlaybackController.Previous ();
-            } else {
-                OnRestartSongAction (o, args);
-            }
+            ServiceManager.PlaybackController.RestartOrPrevious ();
         }
 
         private void OnSeekToAction (object o, EventArgs args)
diff --git a/src/Extensions/Banshee.MultimediaKeys/Banshee.MultimediaKeys/MultimediaKeysService.cs b/src/Extensions/Banshee.MultimediaKeys/Banshee.MultimediaKeys/MultimediaKeysService.cs
index 555c63e..b11d190 100644
--- a/src/Extensions/Banshee.MultimediaKeys/Banshee.MultimediaKeys/MultimediaKeysService.cs
+++ b/src/Extensions/Banshee.MultimediaKeys/Banshee.MultimediaKeys/MultimediaKeysService.cs
@@ -148,7 +148,7 @@ namespace Banshee.MultimediaKeys
                     ServiceManager.PlaybackController.Next ();
                     break;
                 case "Previous":
-                    ServiceManager.PlaybackController.Previous ();
+                    ServiceManager.PlaybackController.RestartOrPrevious ();
                     break;
                 case "Stop":
                     ServiceManager.PlayerEngine.Close ();