OSX: NSDistributedNofitication is sent on playerStateChange

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>
(cherry picked from commit 2ad64d87)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/gui/macosx/intf.h

@@ -180,6 +180,7 @@ struct intf_sys_t
 - (void)fullscreenChanged;
 - (void)PlaylistItemChanged;
 - (void)playbackStatusUpdated;
+- (void)sendDistributedNotificationWithUpdatedPlaybackStatus;
 - (void)playbackModeUpdated;
 - (void)updateVolume;
 - (void)updatePlaybackPosition;

modules/gui/macosx/intf.m

@@ -1484,6 +1484,15 @@ unsigned int CocoaKeyToVLC( unichar i_key )
     }
 
     [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateMainWindow) withObject: nil waitUntilDone: NO];
+    [self performSelectorOnMainThread:@selector(sendDistributedNotificationWithUpdatedPlaybackStatus) withObject: nil waitUntilDone: NO];
+}
+
+- (void)sendDistributedNotificationWithUpdatedPlaybackStatus
+{
+    [[NSDistributedNotificationCenter defaultCenter] postNotificationName:@"VLCPlayerStateDidChange"
+                                                                   object:nil
+                                                                 userInfo:nil
+                                                       deliverImmediately:YES];
 }
 
 - (void)playbackModeUpdated