From 1a1f26d9e4ab6a4fe51baa78e40c4cdf3f402bcf Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 摹曛, 07 12月 2023 14:27:00 +0800
Subject: [PATCH] Add context factory

---
 src/core/contexts/win32windowcontext_p.h |   36 +++++++++++++++++++++++++++++++-----
 1 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/core/contexts/win32windowcontext_p.h b/src/core/contexts/win32windowcontext_p.h
index ff6fea5..0d7b14b 100644
--- a/src/core/contexts/win32windowcontext_p.h
+++ b/src/core/contexts/win32windowcontext_p.h
@@ -8,19 +8,45 @@
 
     class QWK_CORE_EXPORT Win32WindowContext : public AbstractWindowContext {
         Q_OBJECT
-        Q_DISABLE_COPY(Win32WindowContext)
-
     public:
-        Win32WindowContext(QWindow *window, WindowItemDelegatePtr delegate);
+        Win32WindowContext();
         ~Win32WindowContext() override;
 
+        enum WindowPart {
+            Outside,
+            ClientArea,
+            ChromeButton,
+            ResizeBorder,
+            FixedBorder,
+            TitleBar,
+        };
+
     public:
-        bool setup() override;
+        bool setup(QObject *host, WindowItemDelegate *delegate) override;
 
         bool windowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT *result);
 
+        // In order to perfectly apply Windows 11 Snap Layout into the Qt window, we need to
+        // intercept and simulate most of the  mouse events, so that the processing logic
+        // is quite complex. Simultaneously, in order to make the handling code of other
+        // Windows messages clearer, we have separated them into this function.
+        bool snapLayoutHandler(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam,
+                               LRESULT *result);
+
+        bool customWindowHandler(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam,
+                                 LRESULT *result);
+
     protected:
-        WId windowId;
+        WId windowId = 0;
+
+        // The last hit test result, helpful to handle WM_MOUSEMOVE and WM_NCMOUSELEAVE.
+        WindowPart lastHitTestResult = WindowPart::Outside;
+
+        // Whether the last mouse leave message is blocked, mainly for handling the unexpected
+        // WM_MOUSELEAVE.
+        bool mouseLeaveBlocked = false;
+
+        bool centered = false;
     };
 
 }

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