Remove some bogosity from widget mouse handling.

OpenRA.Game/Widgets/ButtonWidget.cs

@@ -44,7 +44,7 @@ namespace OpenRA.Widgets
 			return base.LoseFocus(mi);
 		}
 
-		public override bool HandleInputInner(MouseInput mi)
+		public override bool HandleMouseInput(MouseInput mi)
 		{
 			if (mi.Button != MouseButton.Left)
 				return false;
@@ -55,15 +55,27 @@ namespace OpenRA.Widgets
 			// Only fire the onMouseUp order if we successfully lost focus, and were pressed
 			if (Focused && mi.Event == MouseInputEvent.Up)
 			{
-				var wasPressed = Depressed;
+				LoseFocus(mi);
-				return (LoseFocus(mi) && wasPressed);
+				return OnMouseUp(mi);
 			}
 
 			if (mi.Event == MouseInputEvent.Down)
+			{
+				// OnMouseDown returns false if the button shouldn't be pressed
+				if (!OnMouseDown(mi))
 					Depressed = true;
+				else
+					LoseFocus(mi);
+			}
+			
 			else if (mi.Event == MouseInputEvent.Move && Focused)
+			{
 				Depressed = RenderBounds.Contains(mi.Location.X, mi.Location.Y);
 				
+				// All widgets should recieve MouseMove events
+				OnMouseMove(mi);
+			}
+			
 			return Depressed;
 		}
 
@@ -120,11 +132,9 @@ namespace OpenRA.Widgets
 
 		public static void ShowDropPanel(Widget w, Widget panel, IEnumerable<Widget> dismissAfter, Func<bool> onDismiss)
 		{
+			// Mask to prevent any clicks from being sent to other widgets
 			var fullscreenMask = new ContainerWidget();
-			// Don't use initializers - breaks on mono 2.6.7
 			fullscreenMask.Bounds = new Rectangle(0, 0, Game.viewport.Width, Game.viewport.Height);
-			fullscreenMask.ClickThrough = false;
-			fullscreenMask.Visible = true;
 			Widget.RootWidget.AddChild(fullscreenMask);
 			
 			Action HideDropDown = () =>
@@ -139,13 +149,12 @@ namespace OpenRA.Widgets
 			fullscreenMask.OnMouseDown = mi =>
 			{
 				if (onDismiss()) HideDropDown();
-				return false;
+				return true;
 			};
+			fullscreenMask.OnMouseUp = mi => true;
 
 			var oldBounds = panel.Bounds;
 			panel.Bounds = new Rectangle(w.RenderOrigin.X, w.RenderOrigin.Y + w.Bounds.Height, oldBounds.Width, oldBounds.Height);
-			panel.ClickThrough = false;
-			panel.Visible = true;
 			panel.OnMouseUp = mi => true;
 			
 			foreach (var ww in dismissAfter)
@@ -175,13 +184,10 @@ namespace OpenRA.Widgets
 				dismissAfter.Add(ww);
 				ww.ClickThrough = false;
 				ww.IsVisible = () => true;
-				ww.OnMouseMove = mi =>
+				ww.OnMouseMove = mi => items.Do(lw =>
-				{
-					items.Do(lw =>
 				{
 					lw.Background = null; ww.Background = "dialog2";
-					}); return true;
+				});
-				};
 	
 				dropDown.AddChild(ww);
 				items.Add(ww);

OpenRA.Game/Widgets/ChatEntryWidget.cs

@@ -51,8 +51,6 @@ namespace OpenRA.Widgets
 			return composing ? false : base.LoseFocus(mi);
 		}
 
-		public override bool HandleInputInner(MouseInput mi) { return false; }
-
 		public override bool HandleKeyPressInner(KeyInput e)
 		{
 			if (e.Event == KeyInputEvent.Up) return false;

OpenRA.Game/Widgets/CheckboxWidget.cs

@@ -41,9 +41,13 @@ namespace OpenRA.Widgets
 					new float2(rect.Left + 2, rect.Top + 2));
 		}
 
-		public override bool HandleInputInner(MouseInput mi)
+		public override bool HandleMouseInput(MouseInput mi)
 		{
-			return mi.Button == MouseButton.Left;
+			// Checkboxes require lmb
+			if (mi.Button != MouseButton.Left)
+				return false;
+			
+			return base.HandleMouseInput(mi);
 		}
 
 		public CheckboxWidget() : base() { }

OpenRA.Game/Widgets/MapPreviewWidget.cs

@@ -33,8 +33,6 @@ namespace OpenRA.Widgets
 		}
 		public override Widget Clone() { return new MapPreviewWidget(this); }
 
-		public override bool HandleInputInner(MouseInput mi) { return true; }
-
 		public int2 ConvertToPreview(MapStub map, int2 point)
 		{
 			return new int2(MapRect.X + (int)(PreviewScale*(point.X - map.Bounds.Left)) , MapRect.Y + (int)(PreviewScale*(point.Y - map.Bounds.Top)));

OpenRA.Game/Widgets/ScrollPanelWidget.cs

@@ -129,7 +129,8 @@ namespace OpenRA.Widgets
 		}
 		
 		int2 lastMouseLocation;
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: ScrollPanelWidget doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{						
 			if (mi.Button == MouseButton.WheelDown)
 			{

OpenRA.Game/Widgets/SliderWidget.cs

@@ -63,7 +63,8 @@ namespace OpenRA.Widgets
 			Offset = ((newOffset - Little) / Spread).Clamp(0f, 1f);
 		}
 
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: SliderWidget doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{
 			if (mi.Button != MouseButton.Left)
 				return false;

OpenRA.Game/Widgets/TextFieldWidget.cs

@@ -42,13 +42,14 @@ namespace OpenRA.Widgets
 			return lose;
 		}
 
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: TextFieldWidgets don't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{
 			if (mi.Event == MouseInputEvent.Move)
 				return false;
 
 			// Lose focus if they click outside the box; return false so the next widget can grab this event
-			if (mi.Event == MouseInputEvent.Down && !RenderBounds.Contains(mi.Location.X, mi.Location.Y) && LoseFocus(mi))
+			if (mi.Event == MouseInputEvent.Down && !RenderBounds.Contains(mi.Location) && LoseFocus(mi))
 				return false;
 
 			if (mi.Event == MouseInputEvent.Down && !TakeFocus(mi))

OpenRA.Game/Widgets/ViewportScrollControllerWidget.cs

@@ -34,7 +34,8 @@ namespace OpenRA.Widgets
 		protected ViewportScrollControllerWidget(ViewportScrollControllerWidget widget) : base(widget) {}
 		public override void DrawInner( WorldRenderer wr ) {}
 		
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: ViewportScrollController doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{									
 			if (mi.Event == MouseInputEvent.Move &&
 				(mi.Button == MouseButton.Middle || mi.Button == (MouseButton.Left | MouseButton.Right)))

OpenRA.Game/Widgets/Widget.cs

@@ -41,7 +41,7 @@ namespace OpenRA.Widgets
 		// Common Funcs that most widgets will want
 		public Func<MouseInput, bool> OnMouseDown = mi => false;
 		public Func<MouseInput, bool> OnMouseUp = mi => false;
-		public Func<MouseInput, bool> OnMouseMove = mi => false;
+		public Action<MouseInput> OnMouseMove = mi => {};
 		public Func<KeyInput, bool> OnKeyPress = e => false;
 
 		public Func<bool> IsVisible;
@@ -222,22 +222,21 @@ namespace OpenRA.Widgets
 				if (child.HandleMouseInputOuter(mi))
 					return true;
 
-			// Do any widgety behavior (button click etc)
+			return HandleMouseInput(mi);
-			// Return false if it can't handle any user actions
-			if (!HandleInputInner(mi))
-				return false;
-			
-			// Apply any special logic added by delegates; they return true if they caught the input
-			if (mi.Event == MouseInputEvent.Down && OnMouseDown(mi)) return true;
-			if (mi.Event == MouseInputEvent.Up && OnMouseUp(mi)) return true;
-			if (mi.Event == MouseInputEvent.Move && OnMouseMove(mi)) return true;
-			
-			return true;
 		}
 		
 		// Hack: Don't eat mouse input that others want
 		// TODO: Solve this properly
-		public virtual bool HandleInputInner(MouseInput mi) { return !ClickThrough && mi.Button == MouseButton.Left && mi.Event != MouseInputEvent.Move; }
+		public virtual bool HandleMouseInput(MouseInput mi)
+		{
+			// Apply any special logic added by delegates; they return true if they caught the input
+			if (mi.Event == MouseInputEvent.Down && OnMouseDown(mi)) return true;
+			if (mi.Event == MouseInputEvent.Up && OnMouseUp(mi)) return true;
+			if (mi.Event == MouseInputEvent.Move)
+				OnMouseMove(mi);
+			
+			return false;
+		}
 		
 		public virtual bool HandleKeyPressInner(KeyInput e) { return false; }
 		public virtual bool HandleKeyPressOuter(KeyInput e)

OpenRA.Game/Widgets/WorldInteractionControllerWidget.cs

@@ -47,7 +47,8 @@ namespace OpenRA.Widgets
 		
 		float2 dragStart, dragEnd;
 
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: WorldInteractionController doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{			
 			var xy = Game.viewport.ViewToWorld(mi);
 			if (mi.Button == MouseButton.Left && mi.Event == MouseInputEvent.Down)
@@ -75,6 +76,7 @@ namespace OpenRA.Widgets
 
 			if (mi.Button == MouseButton.Right && mi.Event == MouseInputEvent.Down)
 				ApplyOrders(world, xy, mi);
+			
 			return true;
 		}
 		

OpenRA.Mods.RA/Widgets/BuildPaletteWidget.cs

@@ -157,7 +157,8 @@ namespace OpenRA.Mods.RA.Widgets
 			return DoBuildingHotkey(Char.ToLowerInvariant(e.KeyChar), world);
 		}
 		
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: BuildPaletteWidget doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{			
 			if (mi.Event != MouseInputEvent.Down)
 				return false;

OpenRA.Mods.RA/Widgets/RadarBinWidget.cs

@@ -84,7 +84,8 @@ namespace OpenRA.Mods.RA.Widgets
 			return CursorProvider.HasCursorSequence(cursor+"-minimap") ? cursor+"-minimap" : cursor;
 		}
 
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: RadarBinWidget doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{
 			if (!hasRadar || radarAnimating) return false;	// we're not set up for this.
 
@@ -98,7 +99,6 @@ namespace OpenRA.Mods.RA.Widgets
 			if (mi.Event == MouseInputEvent.Down && mi.Button == MouseButton.Right)
 			{
 				// fake a mousedown/mouseup here
-
 				var fakemi = new MouseInput
 				{
 					Event = MouseInputEvent.Down,
@@ -110,9 +110,9 @@ namespace OpenRA.Mods.RA.Widgets
 				if (WorldInteractionController != null)
 				{
 					var controller = Widget.RootWidget.GetWidget<WorldInteractionControllerWidget>(WorldInteractionController);
-					controller.HandleInputInner(fakemi);
+					controller.HandleMouseInput(fakemi);
 					fakemi.Event = MouseInputEvent.Up;
-					controller.HandleInputInner(fakemi);
+					controller.HandleMouseInput(fakemi);
 				}
 			}
 

OpenRA.Mods.RA/Widgets/SpecialPowerBinWidget.cs

@@ -53,7 +53,8 @@ namespace OpenRA.Mods.RA.Widgets
 			get { return buttons.Any() ? buttons.Select(b => b.First).Aggregate(Rectangle.Union) : Bounds; }
 		}
 		
-		public override bool HandleInputInner(MouseInput mi)
+		// TODO: SpecialPowerBin doesn't support delegate methods for mouse input
+		public override bool HandleMouseInput(MouseInput mi)
 		{			
 			if (mi.Event == MouseInputEvent.Down)
 			{