Changed undo/redo menuitems back to firstResponder. Modified PlaylistView to validate undo/redo items.

Application/AppController.m

@@ -460,5 +460,4 @@ increase/decrease as long as the user holds the left/right, plus/minus button */
 	[playbackController next:nil];
 }
 
-
 @end

Playlist/PlaylistController.h

@@ -46,8 +46,6 @@
 - (NSUndoManager *)undoManager;
 - (void)undoDelete:(NSMutableArray *)undoEntries;
 - (void)undoMove:(NSMutableArray *) undoEntries;
-- (void)doUndo:(id)sender;
-- (void)doRedo:(id)sender;
 
 - (IBAction)takeShuffleFromObject:(id)sender;
 - (IBAction)takeRepeatFromObject:(id)sender;

Playlist/PlaylistController.m

@@ -90,7 +90,7 @@
 			[undoEntries addObject: undoEntry];
 		}
 				
-		[undoManager registerUndoWithTarget:self
+		[[self undoManager] registerUndoWithTarget:self
 				 selector:@selector(undoMove:)
 				 object:undoEntries];
 				 
@@ -228,7 +228,7 @@
 
 	// register an undo for the undo with the undoManager, 
 	// so it knows what to do if a redo is requested
-	[undoManager registerUndoWithTarget:self
+	[[self undoManager] registerUndoWithTarget:self
 				 selector:@selector(undoMove:)
 				 object:undoEntries];
 	
@@ -240,7 +240,7 @@
 		// originally moved entry up the list
 		if (([current origin] > [current movedTo])) 
 		{
-			if ([undoManager isUndoing]) // we are undoing
+			if ([[self undoManager] isUndoing]) // we are undoing
 			{
 				playlistLocation = ([current origin] - (len - 1)) + iterations++;
 				object = [objects objectAtIndex: playlistLocation];
@@ -261,7 +261,7 @@
 		// originally moved entry down the list
 		else
 		{
-			if ([undoManager isUndoing])
+			if ([[self undoManager] isUndoing])
 			{
 				object = [objects objectAtIndex: [current origin]];
 				[object retain];
@@ -290,18 +290,6 @@
 	return undoManager;
 }
 
-- (void)doUndo:(id)sender
-{ 
-	[undoManager undo];
-
-}
-
-- (void)doRedo:(id)sender
-{
-	[undoManager redo];
-}
-
-
 - (void)removeObjectsAtArrangedObjectIndexes:(NSIndexSet *)indexes
 {
 	int				 i; // loop counter
@@ -331,7 +319,7 @@
 	}
 	
 	// register the removals with the undoManager
-	[undoManager registerUndoWithTarget:self
+	[[self undoManager] registerUndoWithTarget:self
 				 selector:@selector(undoDelete:)
 				 object:undoEntries];
 				 

Playlist/PlaylistView.h

@@ -25,5 +25,4 @@
 
 - (IBAction)scrollToCurrentEntry:(id)sender;
 
-
 @end

Playlist/PlaylistView.m

@@ -231,4 +231,27 @@
 	[playlistController randomizeList];
 }
 
+- (IBAction)undo:(id)sender
+{
+	[[playlistController undoManager] undo];
+}
+
+- (IBAction)redo:(id)sender
+{
+	[[playlistController undoManager] redo];
+}
+
+-(BOOL)validateMenuItem:(NSMenuItem*)menuItem
+{
+	SEL action = [menuItem action];
+
+	if (action == @selector(undo:) && [[playlistController undoManager] canUndo])
+		return YES;
+		
+	if (action == @selector(redo:) && [[playlistController undoManager] canRedo]) 
+		return YES;
+		
+	return NO;
+}
+
 @end