Corrected the updating of normal geometry for window

src/CMakeLists.txt

@@ -299,7 +299,7 @@ if(CMAKE_COMPILER_IS_GNUCXX OR IS_CLANG_BUILD)
 endif()
 
 if(${PROJECT_NAME}_QTQUICK)
-  target_link_libraries(kddockwidgets PUBLIC Qt${Qt_VERSION_MAJOR}::Widgets Qt${Qt_VERSION_MAJOR}::Quick Qt${Qt_VERSION_MAJOR}::QuickControls2)
+  target_link_libraries(kddockwidgets PUBLIC Qt${Qt_VERSION_MAJOR}::Widgets Qt${Qt_VERSION_MAJOR}::Quick Qt${Qt_VERSION_MAJOR}::QuickControls2 PRIVATE Qt${Qt_VERSION_MAJOR}::GuiPrivate)
 else()
   target_link_libraries(kddockwidgets PUBLIC Qt${Qt_VERSION_MAJOR}::Widgets PRIVATE Qt${Qt_VERSION_MAJOR}::WidgetsPrivate)
 endif()

src/private/quick/QWidgetAdapter_quick.cpp

@@ -34,6 +34,8 @@
 #include <QQuickView>
 #include <QScopedValueRollback>
 
+#include <qpa/qplatformwindow.h>
+
 using namespace KDDockWidgets;
 
 namespace KDDockWidgets {
@@ -181,54 +183,13 @@ void QWidgetAdapter::onMouseRelease()
 void QWidgetAdapter::onCloseEvent(QCloseEvent *)
 {
 }
-void QWidgetAdapter::onResizeEvent(QResizeEvent *event)
+void QWidgetAdapter::onResizeEvent(QResizeEvent *)
 {
-    QWindow* window = windowHandle();
-    if (!window) {
-        return;
-    }
-
-    if (isNormalWindowState(m_oldWindowState)) {
-        QRect geo = normalGeometry();
-
-        auto curState = window->windowState();
-        if (isNormalWindowState(curState)) {
-            geo.setSize(event->size());
-        } else {
-            geo.setSize(event->oldSize());
-        }
-
-        setNormalGeometry(geo);
-    }
+    updateNormalGeometry();
 }
-void QWidgetAdapter::onMoveEvent(QMoveEvent *event)
+void QWidgetAdapter::onMoveEvent(QMoveEvent *)
 {
-    QWindow* window = windowHandle();
-    if (!window) {
-        return;
-    }
-
-    if (isNormalWindowState(m_oldWindowState)) {
-        QRect geo = normalGeometry();
-
-        auto windowCurrentState = window->windowState();
-        if (isNormalWindowState(windowCurrentState)) {
-            geo.moveTopLeft(event->pos());
-        } else {
-            geo.moveTopLeft(event->oldPos());
-        }
-
-        setNormalGeometry(geo);
-    }
-}
-void QWidgetAdapter::onWindowStateChangeEvent(QWindowStateChangeEvent *)
-{
-    QWindow* window = windowHandle();
-    if (!window) {
-        return;
-    }
-
-    m_oldWindowState = window->windowState();
+    updateNormalGeometry();
 }
 
 void QWidgetAdapter::itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &data)
@@ -259,6 +220,27 @@ void QWidgetAdapter::itemChange(QQuickItem::ItemChange change, const QQuickItem:
     }
 }
 
+void QWidgetAdapter::updateNormalGeometry()
+{
+    QWindow *window = windowHandle();
+    if (!window) {
+        return;
+    }
+
+    QRect normalGeometry;
+    if (const QPlatformWindow *pw = window->handle()) {
+        normalGeometry = pw->normalGeometry();
+    }
+
+    if (!normalGeometry.isValid() && isNormalWindowState(window->windowState())) {
+        normalGeometry = window->geometry();
+    }
+
+    if (normalGeometry.isValid()) {
+        setNormalGeometry(normalGeometry);
+    }
+}
+
 void QWidgetAdapter::QQUICKITEMgeometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
 {
     // Send a few events manually, since QQuickItem doesn't do it for us.
@@ -795,8 +777,6 @@ bool QWidgetAdapter::eventFilter(QObject *watched, QEvent *ev)
             onResizeEvent(static_cast<QResizeEvent *>(ev));
         } else if (ev->type() == QEvent::Move) {
             onMoveEvent(static_cast<QMoveEvent *>(ev));
-        } else if (ev->type() == QEvent::WindowStateChange) {
-            onWindowStateChangeEvent(static_cast<QWindowStateChangeEvent *>(ev));
         }
     }
 

src/private/quick/QWidgetAdapter_quick_p.h

@@ -253,10 +253,11 @@ protected:
     virtual void onCloseEvent(QCloseEvent *);
     virtual void onResizeEvent(QResizeEvent *);
     virtual void onMoveEvent(QMoveEvent *);
-    virtual void onWindowStateChangeEvent(QWindowStateChangeEvent *);
     void itemChange(QQuickItem::ItemChange, const QQuickItem::ItemChangeData &) override;
 
 private:
+    void updateNormalGeometry();
+
     QSize m_sizeHint;
     QSizePolicy m_sizePolicy = QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
     ;
@@ -269,7 +270,6 @@ private:
     bool m_inSetParent = false;
     MouseEventRedirector *m_mouseEventRedirector = nullptr;
     QRect m_normalGeometry;
-    Qt::WindowStates m_oldWindowState = Qt::WindowState::WindowNoState;
 };
 
 inline qreal logicalDpiFactor(const QQuickItem *item)