From 3e942c3dc8955be577079fbc028ce216e1c594b2 Mon Sep 17 00:00:00 2001
From: SineStriker <55847490+SineStriker@users.noreply.github.com>
Date: 周二, 11 2月 2025 19:07:53 +0800
Subject: [PATCH] Fix numerous bugs (#162)

---
 src/core/contexts/abstractwindowcontext_p.h |   89 ++++++++++++++++++++++++++++++++++++++------
 1 files changed, 77 insertions(+), 12 deletions(-)

diff --git a/src/core/contexts/abstractwindowcontext_p.h b/src/core/contexts/abstractwindowcontext_p.h
index 3938d75..e978cb4 100644
--- a/src/core/contexts/abstractwindowcontext_p.h
+++ b/src/core/contexts/abstractwindowcontext_p.h
@@ -1,8 +1,23 @@
+// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
+// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
+// SPDX-License-Identifier: Apache-2.0
+
 #ifndef ABSTRACTWINDOWCONTEXT_P_H
 #define ABSTRACTWINDOWCONTEXT_P_H
 
+//
+//  W A R N I N G !!!
+//  -----------------
+//
+// This file is not part of the QWindowKit API. It is used purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or may even be removed.
+//
+
 #include <array>
+#include <list>
 #include <memory>
+#include <utility>
 
 #include <QtCore/QSet>
 #include <QtCore/QPointer>
@@ -11,11 +26,15 @@
 
 #include <QWKCore/windowagentbase.h>
 #include <QWKCore/private/nativeeventfilter_p.h>
+#include <QWKCore/private/sharedeventfilter_p.h>
 #include <QWKCore/private/windowitemdelegate_p.h>
+#include <QWKCore/private/winidchangeeventfilter_p.h>
 
 namespace QWK {
 
-    class QWK_CORE_EXPORT AbstractWindowContext : public QObject, public NativeEventDispatcher {
+    class QWK_CORE_EXPORT AbstractWindowContext : public QObject,
+                                                  public NativeEventDispatcher,
+                                                  public SharedEventDispatcher {
         Q_OBJECT
     public:
         AbstractWindowContext();
@@ -26,10 +45,11 @@
 
         inline QObject *host() const;
         inline QWindow *window() const;
+        inline WId windowId() const;
         inline WindowItemDelegate *delegate() const;
 
         inline bool isHitTestVisible(const QObject *obj) const;
-        bool setHitTestVisible(const QObject *obj, bool visible);
+        bool setHitTestVisible(QObject *obj, bool visible);
 
         inline QObject *systemButton(WindowAgentBase::SystemButton button) const;
         bool setSystemButton(WindowAgentBase::SystemButton button, QObject *obj);
@@ -38,42 +58,83 @@
         bool setTitleBar(QObject *obj);
 
 #ifdef Q_OS_MAC
-        inline QRect systemButtonArea() const;
-        void setSystemButtonArea(const QRect &rect);
+        inline ScreenRectCallback systemButtonAreaCallback() const;
+        void setSystemButtonAreaCallback(const ScreenRectCallback &callback);
 #endif
 
         bool isInSystemButtons(const QPoint &pos, WindowAgentBase::SystemButton *button) const;
         bool isInTitleBarDraggableArea(const QPoint &pos) const;
 
+        inline bool isHostWidthFixed() const {
+            return m_windowHandle
+                       ? ((m_windowHandle->flags() & Qt::MSWindowsFixedSizeDialogHint) ||
+                          m_windowHandle->minimumWidth() == m_windowHandle->maximumWidth())
+                       : false;
+        }
+        inline bool isHostHeightFixed() const {
+            return m_windowHandle
+                       ? ((m_windowHandle->flags() & Qt::MSWindowsFixedSizeDialogHint) ||
+                          m_windowHandle->minimumHeight() == m_windowHandle->maximumHeight())
+                       : false;
+        }
+        inline bool isHostSizeFixed() const {
+            return m_windowHandle ? ((m_windowHandle->flags() & Qt::MSWindowsFixedSizeDialogHint) ||
+                                     m_windowHandle->minimumSize() == m_windowHandle->maximumSize())
+                                  : false;
+        }
+
         virtual QString key() const;
 
         enum WindowContextHook {
             CentralizeHook = 1,
+            RaiseWindowHook,
             ShowSystemMenuHook,
             DefaultColorsHook,
-            DrawWindows10BorderHook,     // Only works on Windows 10
-            SystemButtonAreaChangedHook, // Only works on Mac
+            DrawWindows10BorderHook_Emulated, // Only works on Windows 10, emulated workaround
+            DrawWindows10BorderHook_Native,   // Only works on Windows 10, native workaround
+            SystemButtonAreaChangedHook,      // Only works on Mac
         };
         virtual void virtual_hook(int id, void *data);
 
         void showSystemMenu(const QPoint &pos);
         void notifyWinIdChange();
 
+        virtual QVariant windowAttribute(const QString &key) const;
+        virtual bool setWindowAttribute(const QString &key, const QVariant &attribute);
+
     protected:
-        virtual void winIdChanged(QWindow *oldWindow) = 0;
+        bool eventFilter(QObject *obj, QEvent *event) override;
+
+    protected:
+        virtual void winIdChanged(WId winId, WId oldWinId) = 0;
+        virtual bool windowAttributeChanged(const QString &key, const QVariant &attribute,
+                                            const QVariant &oldAttribute);
 
     protected:
         QObject *m_host{};
         std::unique_ptr<WindowItemDelegate> m_delegate;
-        QWindow *m_windowHandle{};
+        QPointer<QWindow> m_windowHandle;
+        WId m_windowId{};
 
         QSet<const QObject *> m_hitTestVisibleItems;
 #ifdef Q_OS_MAC
-        QRect m_systemButtonArea;
+        ScreenRectCallback m_systemButtonAreaCallback;
 #endif
 
         QObject *m_titleBar{};
-        std::array<QObject *, WindowAgentBase::NumSystemButton> m_systemButtons{};
+        std::array<QObject *, WindowAgentBase::Close + 1> m_systemButtons{};
+
+        std::list<std::pair<QString, QVariant>> m_windowAttributesOrder;
+        QHash<QString, decltype(m_windowAttributesOrder)::iterator> m_windowAttributes;
+
+        std::unique_ptr<WinIdChangeEventFilter> m_winIdChangeEventFilter;
+
+        void removeSystemButtonsAndHitTestItems();
+
+    private:
+        void _q_titleBarDistroyed(QObject *obj);
+        void _q_hitTestVisibleItemDestroyed(QObject *obj);
+        void _q_systemButtonDestroyed(QObject *obj);
     };
 
     inline QObject *AbstractWindowContext::host() const {
@@ -82,6 +143,10 @@
 
     inline QWindow *AbstractWindowContext::window() const {
         return m_windowHandle;
+    }
+
+    inline WId AbstractWindowContext::windowId() const {
+        return m_windowId;
     }
 
     inline WindowItemDelegate *AbstractWindowContext::delegate() const {
@@ -102,8 +167,8 @@
     }
 
 #ifdef Q_OS_MAC
-    inline QRect AbstractWindowContext::systemButtonArea() const {
-        return m_systemButtonArea;
+    inline ScreenRectCallback AbstractWindowContext::systemButtonAreaCallback() const {
+        return m_systemButtonAreaCallback;
     }
 #endif
 

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