Fixed title bar hittest and changing cursor

GlitchyEditor/src/Ultralight/UltralightMainWindow.bf

@@ -31,9 +31,39 @@ class UltralightMainWindow : UltralightWindow
 
 		_hoveringNonClientArea = JSValueToBoolean(context, arguments[0]);
 
+		_window.[Friend]_hoveredOverTitleBar = _hoveringNonClientArea;
 		Log.ClientLogger.Info($"_hoveringNonClientArea: {_hoveringNonClientArea}");
 	}
 
+	void HandleHoverMaximizeWindow(JSContextRef context, JSObjectRef thisObject, Span<JSValueRef> arguments, JSValueRef* exception = null)
+	{
+		Log.EngineLogger.Info("HandleHoverMaximizeWindow");
+
+		if (arguments.Length != 1)
+		{
+			Log.EngineLogger.Error("EngineGlue.HandleHoverMaximizeWindow: called with wrong number of arguments.");
+			return;
+		}
+
+		if (!JSValueIsBoolean(context, arguments[0]))
+		{
+			Log.EngineLogger.Error($"EngineGlue.HandleHoverMaximizeWindow: expected boolean, but received {JSValueGetType(context, arguments[0])} instead.");
+			return;
+		}
+
+		if (JSValueToBoolean(context, arguments[0]))
+			_window.[Friend]_hoveredTitleBarButton = .Maximize;
+		else
+		{
+			_window.[Friend]_hoveredTitleBarButton = .None;
+		Log.ClientLogger.Info($"esar ogsdflkg aerwufg");
+		}
+
+		EditorLayer.HoveredTitleBarButton = _window.[Friend]_hoveredTitleBarButton;
+
+		Log.ClientLogger.Info($"_hoveredTitleBarButton: {_window.[Friend]_hoveredTitleBarButton}");
+	}
+
 	private void RegisterBeefFunction(JSContextRef context, JSObjectRef object, StringView functionName, JSCallback callback)
 	{
 		JSObjectRef func = UltralightHelper.CreateJsFunctionFromDelegate(context, callback);
@@ -68,6 +98,7 @@ class UltralightMainWindow : UltralightWindow
 		StdAllocator stdAlloc = StdAllocator();
 
 		RegisterBeefFunction(context, scriptGlue, "setHoverNonClientArea", new:stdAlloc => HandleHoverNonClientArea);
+		RegisterBeefFunction(context, scriptGlue, "setHoverMaximizeWindow", new:stdAlloc => HandleHoverMaximizeWindow);
 	}
 
 	protected override void OnDOMReady(C_View* caller, uint64 frame_id, bool is_main_frame, C_String* url)

GlitchyEditor/src/Ultralight/UltralightWindow.bf

@@ -224,14 +224,12 @@ abstract class UltralightWindow
 		ulDestroyMouseEvent(evt);
 
 		_cursorPosition = .(e.PositionX, e.PositionY);
-		Log.EngineLogger.Warning($"{_cursorPosition.X} {_cursorPosition.Y}");
 
 		return true;
 	}
 
 	private bool MousePressed(MouseButtonEvent e, bool press)
 	{
-		Log.ClientLogger.Warning($"{e.MouseButton} {press}");
 
 		ULMouseButton button = .kMouseButton_None;
 

GlitchyEngine/src/Platform/Windows/WindowsWindow.bf

@@ -43,16 +43,18 @@ namespace GlitchyEngine.UI
 
 		private WindowStyle _windowStyle;
 
-		enum TitleBarButton
+		public enum TitleBarButton
 		{
+			None,
 			Minimize,
 			Maximize,
-			Close,
-			None
+			Close
 		}
 
 		private TitleBarButton _hoveredTitleBarButton;
 
+		private bool _hoveredOverTitleBar;
+
 		public override int32 MinWidth
 		{
 			get => _minMaxInfo.MinimumTrackingSize.x;
@@ -377,6 +379,7 @@ namespace GlitchyEngine.UI
 				}
 			}
 
+			if (Application.Instance.MainWindow == window)
 				ImGui.ImGuiImplWin32.WndProcHandler(hwnd, uMsg, wParam, lParam);
 
 			switch (uMsg)
@@ -498,7 +501,7 @@ namespace GlitchyEngine.UI
 					var event = scope MouseButtonPressedEvent(.LeftButton);
 					window._eventCallback(event);
 
-					// if hovering a button
+					if (window._hoveredTitleBarButton != .None)
 						return 0;
 				}
 			case WM_LBUTTONDOWN:
@@ -513,7 +516,7 @@ namespace GlitchyEngine.UI
 					var event = scope MouseButtonReleasedEvent(.LeftButton);
 					window._eventCallback(event);
 					
-					// if hovering a button
+					if (window._hoveredTitleBarButton != .None)
 						return 0;
 				}
 			case WM_LBUTTONUP:
@@ -595,13 +598,14 @@ namespace GlitchyEngine.UI
 						DirectX.Math.Rectangle title_bar_rect = win32_titlebar_rect(hwnd);
 						// You could do tighter invalidation here but probably doesn't matter
 						InvalidateRect(hwnd, title_bar_rect, false);
-						window._hoveredTitleBarButton = .None;
+						//window._hoveredTitleBarButton = .None;
 					}
 
-					SplitHighAndLowOrder!(lParam, let x, let y);
+					SplitXAndY(lParam, let x, let y);
 
 					DirectX.Windows.POINT p = .(x, y);
 
+					if (uMsg == 0x00A0 /*WM_NCMOUSEMOVE*/)
 						ScreenToClient(hwnd, &p);
 					
 					var event = scope MouseMovedEvent(p.x, p.y);
@@ -735,9 +739,14 @@ namespace GlitchyEngine.UI
 				}
 				
 				// Check if hover button is on maximize to support SnapLayout on Windows 11
-				if (window._hoveredTitleBarButton == .Maximize) {
+				if (window._hoveredTitleBarButton == .Maximize)
+				{
 					return 9 /* HTMAXBUTTON */;
 				}
+				else if (window._hoveredTitleBarButton == .Minimize)
+				{
+					return 8 /* HTMINBUTTON */;
+				}
 
 				// Looks like adjustment happening in NCCALCSIZE is messing with the detection
 				// of the top hit area so manually fixing that.
@@ -746,14 +755,17 @@ namespace GlitchyEngine.UI
 				int padding = GetSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi);
 				POINT cursor_point = .();
 
-				SplitHighAndLowOrder(lParam, out cursor_point.x, out cursor_point.y);
+				cursor_point.x = GetXParam(lParam);
+				cursor_point.y = GetYParam(lParam);
 				ScreenToClient(hwnd, &cursor_point);
-				if (cursor_point.y > 0 && cursor_point.y < frame_y + padding) {
+				if (cursor_point.y > 0 && cursor_point.y < frame_y + padding)
+				{
 				  	return 12 /* HTTOP */;
 				}
 
 				// Since we are drawing our own caption, this needs to be a custom test
-				if (cursor_point.y < win32_titlebar_rect(hwnd).Bottom) {
+				if (window._hoveredTitleBarButton == .None && window._hoveredOverTitleBar)
+				{
 					return 2 /* HTCAPTION */;
 				}
 
@@ -763,6 +775,24 @@ namespace GlitchyEngine.UI
 			return DefWindowProcW(hwnd, uMsg, wParam, lParam);
 		}
 
+		public static void SplitXAndY(int64 input, out int32 x, out int32 y)
+		{
+			x = GetXParam(input);
+			y = GetYParam(input);
+		}
+
+		[Inline]
+		public static int32 GetXParam(int64 input)
+		{
+			return ((int32)(int16)GetLowOrder(input));
+		}
+
+		[Inline]
+		public static int32 GetYParam(int64 input)
+		{
+			return ((int32)(int16)GetHighOrder(input));
+		}
+
 		static bool win32_window_is_maximized(HWND handle)
 		{
 			WINDOWPLACEMENT placement = .();
@@ -1067,8 +1097,11 @@ namespace GlitchyEngine.UI
 				hCursor = Winuser.LoadCursorW((.)0, cursor);
 			}
 
+			if (_cursor != hCursor)
+			{
 				_cursor = hCursor;
 				Winuser.SetCursor(hCursor);
+			}
 
 			return .Ok;
 		}