[Muine] [Patch] Generalize Dashboard interface

[Edd Dumbill <edd usefulinc com>]

There are many reasons that other 'plugins' might want to get notified
when the playing song changes, not just Dashboard.  The one I had in
mind was to write an interface to AudioScrobbler
(www.audioscrobbler.com), a playlist based recommendations engine.

Something like the attached patch would do that.  I daresay you could do
it neater, this is just a suggestion.

-- Edd

Index: src/DashboardFrontend.cs
===================================================================
RCS file: /cvs/gnome/muine/src/DashboardFrontend.cs,v
retrieving revision 1.2
diff -u -r1.2 DashboardFrontend.cs
--- src/DashboardFrontend.cs	26 Feb 2004 10:46:10 -0000	1.2
+++ src/DashboardFrontend.cs	24 May 2004 21:01:21 -0000
@@ -26,6 +26,11 @@
 
 public class DashboardFrontend
 {
+	public static void PlayerChangedSong (Song song, bool HasToplevelFocus)
+	{
+		SendClue (song.Artists, song.Album, song.Title, HasToplevelFocus);
+	}
+
         public static void SendClue (string [] artists, string album, string song_title, bool has_focus)
         {
 		TcpClient tcp_client = new TcpClient ();
Index: src/PlaylistWindow.cs
===================================================================
RCS file: /cvs/gnome/muine/src/PlaylistWindow.cs,v
retrieving revision 1.120
diff -u -r1.120 PlaylistWindow.cs
--- src/PlaylistWindow.cs	9 May 2004 20:16:49 -0000	1.120
+++ src/PlaylistWindow.cs	24 May 2004 21:01:21 -0000
@@ -90,6 +90,12 @@
 	/* Multimedia Key handler */
 	private MmKeys mmkeys;
 
+	public delegate void PlayerChangedSongHandler (Song song, bool hasfocus);
+
+	/* Event to notify when song changed: plugins like
+	   Dashboard can use this.  */
+	public event PlayerChangedSongHandler PlayerChangedSong;
+
 	public PlaylistWindow () : base (WindowType.Toplevel)
 	{
 		/* build the interface */
@@ -125,6 +131,9 @@
 		mmkeys.PlayPause += new EventHandler (HandlePlayPauseCommand);
 		mmkeys.Stop += new EventHandler (HandleStopCommand);
 
+		/* Add Dashboard support */
+		PlayerChangedSong += DashboardFrontend.PlayerChangedSong;
+		
 		/* load last playlist */
 		playlist_filename = Gnome.User.DirGet () + "/muine/playlist.m3u";
 		System.IO.FileInfo finfo = new System.IO.FileInfo (playlist_filename);
@@ -603,8 +612,10 @@
 			if (player.Playing)
 				icon.Tooltip = artist_label.Text + " - " + title_label.Text;
 
-			if (restart)
-				DashboardFrontend.SendClue (song.Artists, song.Album, song.Title, HasToplevelFocus);
+			if (restart) {
+				PlayerChangedSong (song, HasToplevelFocus);
+			}
+
 		} else {
 			cover_image.Song = null;