Add AA_DontUseNativeMenuWindows

Also add some categorized logging output to make it easier
to check if native menus are being created.

[ChangeLog][Qt Core] Added AA_DontUseNativeMenuWindows
application attribute. Menu popup windows (e.g. context menus,
combo box menus, and non-native menubar menus) created while this
attribute is set to true will not be represented as native top level
windows, unless required by the implementation.

Task-number: QTBUG-69558
Change-Id: Iba11b89c67d942ce6c5a28a7c57a86e63c020618
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

src/corelib/global/qnamespace.h

@@ -463,6 +463,7 @@ namespace Qt {
         AA_CompressTabletEvents = 29,
         // AA_DisableWindowContextHelpButton = 30,
         AA_DisableSessionManager = 31,
+        AA_DontUseNativeMenuWindows = 32,
 
         // Add new attributes before this line
         AA_AttributeCount

src/corelib/global/qnamespace.qdoc

@@ -273,6 +273,12 @@
            Currently supported on the Windows platform only.
            This value was added in 5.15
 
+    \value AA_DontUseNativeMenuWindows Menu popup windows (e.g. context menus,
+           combo box menus, and non-native menubar menus) created while this
+           attribute is set to true will not be represented as native top
+           level windows, unless required by the implementation.
+           This value was added in Qt 6.8.
+
     \omitvalue AA_AttributeCount
     \omitvalue AA_EnableHighDpiScaling
     \omitvalue AA_UseHighDpiPixmaps

src/plugins/platforms/android/qandroidplatformtheme.cpp

@@ -23,6 +23,8 @@
 
 QT_BEGIN_NAMESPACE
 
+Q_LOGGING_CATEGORY(lcQpaMenus, "qt.qpa.menus")
+
 using namespace Qt::StringLiterals;
 
 namespace {
@@ -394,21 +396,28 @@ void QAndroidPlatformTheme::updateStyle()
 
 QPlatformMenuBar *QAndroidPlatformTheme::createPlatformMenuBar() const
 {
-    return new QAndroidPlatformMenuBar;
+    auto *menuBar = new QAndroidPlatformMenuBar;
+    qCDebug(lcQpaMenus) << "Created" << menuBar;
+    return menuBar;
 }
 
 QPlatformMenu *QAndroidPlatformTheme::createPlatformMenu() const
 {
-    return new QAndroidPlatformMenu;
+    auto *menu = new QAndroidPlatformMenu;
+    qCDebug(lcQpaMenus) << "Created" << menu;
+    return menu;
 }
 
 QPlatformMenuItem *QAndroidPlatformTheme::createPlatformMenuItem() const
 {
-    return new QAndroidPlatformMenuItem;
+    auto *menuItem = new QAndroidPlatformMenuItem;
+    qCDebug(lcQpaMenus) << "Created" << menuItem;
+    return menuItem;
 }
 
 void QAndroidPlatformTheme::showPlatformMenuBar()
 {
+    qCDebug(lcQpaMenus) << "Showing platform menu bar";
     QtAndroidMenu::openOptionsMenu();
 }
 

src/plugins/platforms/android/qandroidplatformtheme.h

@@ -9,13 +9,15 @@
 #include <QtGui/qpalette.h>
 #include <QtCore/qhash.h>
 #include <QtCore/qbytearray.h>
-
+#include <QtCore/qloggingcategory.h>
 #include <QJsonObject>
 
 #include <memory>
 
 QT_BEGIN_NAMESPACE
 
+Q_DECLARE_LOGGING_CATEGORY(lcQpaMenus)
+
 struct AndroidStyle
 {
     static QJsonObject loadStyleData();

src/plugins/platforms/cocoa/qcocoatheme.mm

@@ -505,12 +505,16 @@ QKeySequence QCocoaTheme::standardButtonShortcut(int button) const
 
 QPlatformMenuItem *QCocoaTheme::createPlatformMenuItem() const
 {
-    return new QCocoaMenuItem();
+    auto *menuItem = new QCocoaMenuItem();
+    qCDebug(lcQpaMenus) << "Created" << menuItem;
+    return menuItem;
 }
 
 QPlatformMenu *QCocoaTheme::createPlatformMenu() const
 {
-    return new QCocoaMenu();
+    auto *menu = new QCocoaMenu();
+    qCDebug(lcQpaMenus) << "Created" << menu;
+    return menu;
 }
 
 QPlatformMenuBar *QCocoaTheme::createPlatformMenuBar() const
@@ -523,7 +527,9 @@ QPlatformMenuBar *QCocoaTheme::createPlatformMenuBar() const
                 SLOT(onAppFocusWindowChanged(QWindow*)));
     }
 
-    return new QCocoaMenuBar();
+    auto *menuBar = new QCocoaMenuBar();
+    qCDebug(lcQpaMenus) << "Created" << menuBar;
+    return menuBar;
 }
 
 #ifndef QT_NO_SHORTCUT