Fix syncing of visibility and enabled for menus on Cocoa

Fixed menu handling on Cocoa so if a menu is enabled/disabled or made
visible or not then it will keep this in sync with the appropriate
native menu entry.

Change-Id: If269185fcf065fb1b2f60d6ef8c27c107eb4509f
Reviewed-by: Pasi Matilainen <pasi.matilainen@digia.com>
Reviewed-by: James Turner <james.turner@kdab.com>
Reviewed-by: Andy Shaw <andy.shaw@digia.com>

src/gui/kernel/qplatformmenu.h

@@ -102,6 +102,7 @@ public:
 
     virtual void setText(const QString &text) = 0;
     virtual void setEnabled(bool enabled) = 0;
+    virtual void setVisible(bool visible) = 0;
 
     virtual QPlatformMenuItem *menuItemAt(int position) const = 0;
     virtual QPlatformMenuItem *menuItemForTag(quintptr tag) const = 0;

src/plugins/platforms/cocoa/qcocoamenu.h

@@ -70,6 +70,7 @@ public:
     void removeMenuItem(QPlatformMenuItem *menuItem);
     void syncMenuItem(QPlatformMenuItem *menuItem);
     void setEnabled(bool enabled);
+    void setVisible(bool visible);
     void syncSeparatorsCollapsible(bool enable);
 
     void syncModalState(bool modal);

src/plugins/platforms/cocoa/qcocoamenu.mm

@@ -268,6 +268,12 @@ void QCocoaMenu::setParentItem(QCocoaMenuItem *item)
 void QCocoaMenu::setEnabled(bool enabled)
 {
     m_enabled = enabled;
+    syncModalState(!m_enabled);
+}
+
+void QCocoaMenu::setVisible(bool visible)
+{
+    [m_nativeItem setSubmenu:(visible ? m_nativeMenu : nil)];
 }
 
 QPlatformMenuItem *QCocoaMenu::menuItemAt(int position) const

src/plugins/platforms/cocoa/qcocoamenuitem.mm

@@ -263,7 +263,7 @@ NSMenuItem *QCocoaMenuItem::sync()
 //  [m_native setHidden:YES];
 //  [m_native setHidden:NO];
    [m_native setHidden: !m_isVisible];
-
+    [m_native setEnabled: m_enabled];
     QString text = m_text;
     QKeySequence accel = m_shortcut;
 

src/widgets/widgets/qmenubar.cpp

@@ -1285,6 +1285,8 @@ void QMenuBar::actionEvent(QActionEvent *e)
                 }
             } else if (menu) {
                 menu->setText(e->action()->text());
+                menu->setVisible(e->action()->isVisible());
+                menu->setEnabled(e->action()->isEnabled());
                 d->platformMenuBar->syncMenu(menu);
             }
         }

tests/manual/cocoa/menus/main.cpp

@@ -39,9 +39,12 @@
 **
 ****************************************************************************/
 
-#include <QtGui>
-#include <QtWidgets>
-
+#include <QMainWindow>
+#include <QMenu>
+#include <QApplication>
+#include <QMenuBar>
+#include <QMessageBox>
+#include <QDebug>
 
 class Responder : public QObject
 {
@@ -49,13 +52,34 @@ class Responder : public QObject
 
 public:
     Responder(QObject *pr) :
-        QObject(pr)
+        QObject(pr), visibleMenu(0), visibleSubMenu(0), enabledMenu(0), enabledSubMenu(0), visibleAction(0), enabledAction(0)
     {
     }
-
+    void setVisibleObjects(QMenu *vm, QMenu *vsm, QAction *va)
+    {
+        visibleMenu = vm;
+        visibleSubMenu = vsm;
+        visibleAction = va;
+    }
+    void setEnabledObjects(QMenu *em, QMenu *esm, QAction *ea)
+    {
+        enabledMenu = em;
+        enabledSubMenu = esm;
+        enabledAction = ea;
+    }
 public slots:
-
-
+    void toggleVisiblity()
+    {
+        visibleMenu->menuAction()->setVisible(!visibleMenu->menuAction()->isVisible());
+        visibleSubMenu->menuAction()->setVisible(!visibleSubMenu->menuAction()->isVisible());
+        visibleAction->setVisible(!visibleAction->isVisible());
+    }
+    void toggleEnabled()
+    {
+        enabledMenu->menuAction()->setEnabled(!enabledMenu->menuAction()->isEnabled());
+        enabledSubMenu->menuAction()->setEnabled(!enabledSubMenu->menuAction()->isEnabled());
+        enabledAction->setEnabled(!enabledAction->isEnabled());
+    }
     void toggleChecked(bool b)
     {
         QAction *a = qobject_cast<QAction *>(sender());
@@ -82,6 +106,9 @@ public slots:
             m->addAction(QString("Recent File %1").arg(i + 1));
         }
     }
+private:
+    QMenu *visibleMenu, *visibleSubMenu, *enabledMenu, *enabledSubMenu;
+    QAction *visibleAction, *enabledAction;
 };
 
 void createWindow1()
@@ -156,6 +183,39 @@ void createWindow1()
 
     menu2->addAction(checkableAction);
 
+    QMenu *menu4 = new QMenu("Toggle menu", window);
+    QAction *toggleVisiblity = new QAction("Toggle visibility", window);
+    QAction *toggleEnabled = new QAction("Toggle enabled", window);
+    QObject::connect(toggleVisiblity, SIGNAL(triggered()), r, SLOT(toggleVisiblity()));
+    QObject::connect(toggleEnabled, SIGNAL(triggered()), r, SLOT(toggleEnabled()));
+    menu4->addAction(toggleVisiblity);
+    menu4->addAction(toggleEnabled);
+    window->menuBar()->addMenu(menu4);
+
+    QMenu *menu5 = new QMenu("Visible Menu", window);
+    menu5->addAction("Dummy action");
+    window->menuBar()->addMenu(menu5);
+    QMenu *menu6 = new QMenu("Menu with visible action and submenu", window);
+    QAction *visibleAction = new QAction("Visible action", window);
+    menu6->addAction(visibleAction);
+    QMenu *subMenu6 = new QMenu("Submenu");
+    subMenu6->addAction("Dummy action");
+    menu6->addMenu(subMenu6);
+    window->menuBar()->addMenu(menu6);
+
+    QMenu *menu7 = new QMenu("Enabled Menu", window);
+    menu7->addAction("Dummy action");
+    window->menuBar()->addMenu(menu7);
+    QMenu *menu8 = new QMenu("Menu with enabled action and submenu", window);
+    QAction *enabledAction = new QAction("Enabled action", window);
+    menu8->addAction(enabledAction);
+    QMenu *subMenu8 = new QMenu("Submenu");
+    subMenu8->addAction("Dummy action");
+    menu8->addMenu(subMenu8);
+    window->menuBar()->addMenu(menu8);
+
+    r->setVisibleObjects(menu5, subMenu6, visibleAction);
+    r->setEnabledObjects(menu7, subMenu8, enabledAction);
     window->show();
 
 }