5 files changed, 34 insertions, 18 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.h b/src/plugins/platforms/cocoa/qcocoamenu.h
index 5064d89585..c975de166d 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.h
+++ b/src/plugins/platforms/cocoa/qcocoamenu.h
@@ -43,7 +43,7 @@ QT_BEGIN_NAMESPACE
 
 class QCocoaMenuBar;
 
-class QCocoaMenu : public QPlatformMenu
+class QCocoaMenu : public QPlatformMenu, public QCocoaMenuObject
 {
 public:
     QCocoaMenu();
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.mm b/src/plugins/platforms/cocoa/qcocoamenu.mm
index 21a3799859..6ed7aa0e06 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenu.mm
@@ -265,8 +265,8 @@ QCocoaMenu::QCocoaMenu() :
 QCocoaMenu::~QCocoaMenu()
 {
     foreach (QCocoaMenuItem *item, m_menuItems) {
-        if (COCOA_MENU_ANCESTOR(item) == this)
-            SET_COCOA_MENU_ANCESTOR(item, 0);
+        if (item->menuParent() == this)
+            item->setMenuParent(0);
     }
 
     QMacAutoReleasePool pool;
@@ -344,7 +344,7 @@ void QCocoaMenu::insertNative(QCocoaMenuItem *item, QCocoaMenuItem *beforeItem)
     } else {
         [m_nativeMenu addItem: item->nsItem()];
     }
-    SET_COCOA_MENU_ANCESTOR(item, this);
+    item->setMenuParent(this);
 }
 
 void QCocoaMenu::removeMenuItem(QPlatformMenuItem *menuItem)
@@ -356,8 +356,8 @@ void QCocoaMenu::removeMenuItem(QPlatformMenuItem *menuItem)
         return;
     }
 
-    if (COCOA_MENU_ANCESTOR(menuItem) == this)
-        SET_COCOA_MENU_ANCESTOR(menuItem, 0);
+    if (cocoaItem->menuParent() == this)
+        cocoaItem->setMenuParent(0);
 
     m_menuItems.removeOne(cocoaItem);
     if (!cocoaItem->isMerged()) {
diff --git a/src/plugins/platforms/cocoa/qcocoamenubar.mm b/src/plugins/platforms/cocoa/qcocoamenubar.mm
index ac4d29fc52..ac48a0e310 100644
--- a/src/plugins/platforms/cocoa/qcocoamenubar.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenubar.mm
@@ -314,7 +314,7 @@ void QCocoaMenuBar::updateMenuBarImmediately()
             continue;
         NSMenuItem *item = mb->nativeItemForMenu(menu);
         menu->setAttachedItem(item);
-        SET_COCOA_MENU_ANCESTOR(menu, mb);
+        menu->setMenuParent(mb);
         // force a sync?
         mb->syncMenu(menu);
         menu->syncModalState(disableForModal);
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.h b/src/plugins/platforms/cocoa/qcocoamenuitem.h
index ada4b13df1..5f7215596c 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.h
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.h
@@ -49,7 +49,24 @@ QT_BEGIN_NAMESPACE
 
 class QCocoaMenu;
 
-class QCocoaMenuItem : public QPlatformMenuItem
+class QCocoaMenuObject
+{
+public:
+    void setMenuParent(QObject *o)
+    {
+        parent = o;
+    }
+
+    QObject *menuParent() const
+    {
+        return parent;
+    }
+
+private:
+    QPointer<QObject> parent;
+};
+
+class QCocoaMenuItem : public QPlatformMenuItem, public QCocoaMenuObject
 {
 public:
     QCocoaMenuItem();
@@ -112,9 +129,6 @@ private:
     int m_iconSize;
 };
 
-#define COCOA_MENU_ANCESTOR(m) ((m)->property("_qCocoaMenuAncestor").value<QObject *>())
-#define SET_COCOA_MENU_ANCESTOR(m, ancestor) (m)->setProperty("_qCocoaMenuAncestor", QVariant::fromValue<QObject *>(ancestor))
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.mm b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
index e274448620..0f422843e0 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
@@ -105,8 +105,8 @@ QCocoaMenuItem::~QCocoaMenuItem()
 {
     QMacAutoReleasePool pool;
 
-    if (m_menu && COCOA_MENU_ANCESTOR(m_menu) == this)
-        SET_COCOA_MENU_ANCESTOR(m_menu, 0);
+    if (m_menu && m_menu->menuParent() == this)
+        m_menu->setMenuParent(0);
     if (m_merged) {
         [m_native setHidden:YES];
     } else {
@@ -132,14 +132,14 @@ void QCocoaMenuItem::setMenu(QPlatformMenu *menu)
         return;
 
     if (m_menu) {
-        if (COCOA_MENU_ANCESTOR(m_menu) == this)
-            SET_COCOA_MENU_ANCESTOR(m_menu, 0);
+        if (m_menu->menuParent() == this)
+            m_menu->setMenuParent(0);
     }
 
     QMacAutoReleasePool pool;
     m_menu = static_cast<QCocoaMenu *>(menu);
     if (m_menu) {
-        SET_COCOA_MENU_ANCESTOR(m_menu, this);
+        m_menu->setMenuParent(this);
     } else {
         // we previously had a menu, but no longer
         // clear out our item so the nexy sync() call builds a new one
@@ -229,12 +229,14 @@ NSMenuItem *QCocoaMenuItem::sync()
             mergeItem = [loader preferencesMenuItem];
             break;
         case TextHeuristicRole: {
-            QObject *p = COCOA_MENU_ANCESTOR(this);
+            QObject *p = menuParent();
             int depth = 1;
             QCocoaMenuBar *menubar = 0;
             while (depth < 3 && p && !(menubar = qobject_cast<QCocoaMenuBar *>(p))) {
                 ++depth;
-                p = COCOA_MENU_ANCESTOR(p);
+                QCocoaMenuObject *menuObject = dynamic_cast<QCocoaMenuObject *>(p);
+                Q_ASSERT(menuObject);
+                p = menuObject->menuParent();
             }
             if (depth == 3 || !menubar)
                 break; // Menu item too deep in the hierarchy, or not connected to any menubar