qmenu_mac.mm

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#include "qmenu.h"
#include "qhash.h"
#include <qdebug.h>
#include "qapplication.h"
#include <private/qt_mac_p.h>
#include "qregexp.h"
#include "qmainwindow.h"
#include "qdockwidget.h"
#include "qtoolbar.h"
#include "qevent.h"
#include "qstyle.h"
#include "qwidgetaction.h"
#include "qmacnativewidget_mac.h"

#include <private/qapplication_p.h>
#include <private/qcocoaapplication_mac_p.h>
#include <private/qmenu_p.h>
#include <private/qmenubar_p.h>
#include <private/qcocoamenuloader_mac_p.h>
#include <private/qcocoamenu_mac_p.h>
#include <private/qt_cocoa_helpers_mac_p.h>
#include <Cocoa/Cocoa.h>

QT_BEGIN_NAMESPACE

/*****************************************************************************
  QMenu debug facilities
 *****************************************************************************/

/*****************************************************************************
  QMenu globals
 *****************************************************************************/
bool qt_mac_no_menubar_merge = false;
bool qt_mac_quit_menu_item_enabled = true;
int qt_mac_menus_open_count = 0;

static OSMenuRef qt_mac_create_menu(QWidget *w);

#ifndef QT_MAC_USE_COCOA
static uint qt_mac_menu_static_cmd_id = 'QT00';
const UInt32 kMenuCreatorQt = 'cute';
enum {
    kMenuPropertyQAction = 'QAcT',
    kMenuPropertyQWidget = 'QWId',
    kMenuPropertyCausedQWidget = 'QCAU',
    kMenuPropertyMergeMenu = 'QApP',
    kMenuPropertyMergeList = 'QAmL',
    kMenuPropertyWidgetActionWidget = 'QWid',
    kMenuPropertyWidgetMenu = 'QWMe',

    kHICommandAboutQt = 'AOQT',
    kHICommandCustomMerge = 'AQt0'
};
#endif

static struct {
    QPointer<QMenuBar> qmenubar;
    bool modal;
} qt_mac_current_menubar = { 0, false };




/*****************************************************************************
  Externals
 *****************************************************************************/
extern OSViewRef qt_mac_hiview_for(const QWidget *w); //qwidget_mac.cpp
extern HIViewRef qt_mac_hiview_for(OSWindowRef w); //qwidget_mac.cpp
extern IconRef qt_mac_create_iconref(const QPixmap &px); //qpixmap_mac.cpp
extern QWidget * mac_keyboard_grabber; //qwidget_mac.cpp
extern bool qt_sendSpontaneousEvent(QObject*, QEvent*); //qapplication_xxx.cpp
RgnHandle qt_mac_get_rgn(); //qregion_mac.cpp
void qt_mac_dispose_rgn(RgnHandle r); //qregion_mac.cpp

/*****************************************************************************
  QMenu utility functions
 *****************************************************************************/
bool qt_mac_watchingAboutToShow(QMenu *menu)
{
    return menu && menu->receivers(SIGNAL(aboutToShow()));
}

static int qt_mac_CountMenuItems(OSMenuRef menu)
{
    if (menu) {
#ifndef QT_MAC_USE_COCOA
        int ret = 0;
        const int items = CountMenuItems(menu);
        for(int i = 0; i < items; i++) {
            MenuItemAttributes attr;
            if (GetMenuItemAttributes(menu, i+1, &attr) == noErr &&
               attr & kMenuItemAttrHidden)
                continue;
            ++ret;
        }
        return ret;
#else
        return [menu numberOfItems];
#endif
    }
    return 0;
}

static quint32 constructModifierMask(quint32 accel_key)
{
    quint32 ret = 0;
    const bool dontSwap = qApp->testAttribute(Qt::AA_MacDontSwapCtrlAndMeta);
#ifndef QT_MAC_USE_COCOA
    if ((accel_key & Qt::ALT) == Qt::ALT)
        ret |= kMenuOptionModifier;
    if ((accel_key & Qt::SHIFT) == Qt::SHIFT)
        ret |= kMenuShiftModifier;
    if (dontSwap) {
        if ((accel_key & Qt::META) != Qt::META)
            ret |= kMenuNoCommandModifier;
        if ((accel_key & Qt::CTRL) == Qt::CTRL)
            ret |= kMenuControlModifier;
    } else {
        if ((accel_key & Qt::CTRL) != Qt::CTRL)
            ret |= kMenuNoCommandModifier;
        if ((accel_key & Qt::META) == Qt::META)
            ret |= kMenuControlModifier;
    }
#else
    if ((accel_key & Qt::CTRL) == Qt::CTRL)
        ret |= (dontSwap ? NSControlKeyMask : NSCommandKeyMask);
    if ((accel_key & Qt::META) == Qt::META)
        ret |= (dontSwap ? NSCommandKeyMask : NSControlKeyMask);
    if ((accel_key & Qt::ALT) == Qt::ALT)
        ret |= NSAlternateKeyMask;
    if ((accel_key & Qt::SHIFT) == Qt::SHIFT)
        ret |= NSShiftKeyMask;
#endif
    return ret;
}

static void cancelAllMenuTracking()
{
#ifdef QT_MAC_USE_COCOA
    QMacCocoaAutoReleasePool pool;
    NSMenu *mainMenu = [NSApp mainMenu];
    [mainMenu cancelTracking];
    for (NSMenuItem *item in [mainMenu itemArray]) {
        if ([item submenu]) {
            [[item submenu] cancelTracking];
        }
    }
#else
    CancelMenuTracking(AcquireRootMenu(), true, 0);
#endif
}

static bool actualMenuItemVisibility(const QMenuBarPrivate::QMacMenuBarPrivate *mbp,
                                     const QMacMenuAction *action)
{
    bool visible = action->action->isVisible();
    if (visible && action->action->text() == QString(QChar(0x14)))
        return false;
    if (visible && action->action->menu() && !action->action->menu()->actions().isEmpty() &&
        !qt_mac_CountMenuItems(action->action->menu()->macMenu(mbp->apple_menu)) &&
        !qt_mac_watchingAboutToShow(action->action->menu())) {
        return false;
    }
    return visible;
}

#ifndef QT_MAC_USE_COCOA
bool qt_mac_activate_action(MenuRef menu, uint command, QAction::ActionEvent action_e, bool by_accel)
{
    //fire event
    QMacMenuAction *action = 0;
    if (GetMenuCommandProperty(menu, command, kMenuCreatorQt, kMenuPropertyQAction, sizeof(action), 0, &action) != noErr) {
        QMenuMergeList *list = 0;
        GetMenuItemProperty(menu, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                            sizeof(list), 0, &list);
        if (!list && qt_mac_current_menubar.qmenubar && qt_mac_current_menubar.qmenubar->isNativeMenuBar()) {
            MenuRef apple_menu = qt_mac_current_menubar.qmenubar->d_func()->mac_menubar->apple_menu;
            GetMenuItemProperty(apple_menu, 0, kMenuCreatorQt, kMenuPropertyMergeList, sizeof(list), 0, &list);
            if (list)
                menu = apple_menu;
        }
        if (list) {
            for(int i = 0; i < list->size(); ++i) {
                QMenuMergeItem item = list->at(i);
                if (item.command == command && item.action) {
                    action = item.action;
                    break;
                }
            }
        }
        if (!action)
            return false;
    }

    if (action_e == QAction::Trigger && by_accel && action->ignore_accel) //no, not a real accel (ie tab)
        return false;

    // Unhighlight the highlighted menu item before triggering the action to
    // prevent items from staying highlighted while a modal dialog is shown.
    // This also fixed the problem that parentless modal dialogs leave
    // the menu item highlighted (since the menu bar is cleared for these types of dialogs).
    if (action_e == QAction::Trigger)
        HiliteMenu(0);

    action->action->activate(action_e);

    //now walk up firing for each "caused" widget (like in the platform independent menu)
    QWidget *caused = 0;
    if (action_e == QAction::Hover && GetMenuItemProperty(menu, 0, kMenuCreatorQt, kMenuPropertyCausedQWidget, sizeof(caused), 0, &caused) == noErr) {
        MenuRef caused_menu = 0;
        if (QMenu *qmenu2 = qobject_cast<QMenu*>(caused))
            caused_menu = qmenu2->macMenu();
        else if (QMenuBar *qmenubar2 = qobject_cast<QMenuBar*>(caused))
            caused_menu = qmenubar2->macMenu();
        else
            caused_menu = 0;
        while(caused_menu) {
            //fire
            QWidget *widget = 0;
            GetMenuItemProperty(caused_menu, 0, kMenuCreatorQt, kMenuPropertyQWidget, sizeof(widget), 0, &widget);
            if (QMenu *qmenu = qobject_cast<QMenu*>(widget)) {
                action->action->showStatusText(widget);
                emit qmenu->hovered(action->action);
            } else if (QMenuBar *qmenubar = qobject_cast<QMenuBar*>(widget)) {
                action->action->showStatusText(widget);
                emit qmenubar->hovered(action->action);
                break; //nothing more..
            }

            //walk up
            if (GetMenuItemProperty(caused_menu, 0, kMenuCreatorQt, kMenuPropertyCausedQWidget,
                                    sizeof(caused), 0, &caused) != noErr)
                break;
            if (QMenu *qmenu2 = qobject_cast<QMenu*>(caused))
                caused_menu = qmenu2->macMenu();
            else if (QMenuBar *qmenubar2 = qobject_cast<QMenuBar*>(caused))
                caused_menu = qmenubar2->macMenu();
            else
                caused_menu = 0;
        }
    }
    return true;
}

//lookup a QMacMenuAction in a menu
static int qt_mac_menu_find_action(MenuRef menu, MenuCommand cmd)
{
    MenuItemIndex ret_idx;
    MenuRef ret_menu;
    if (GetIndMenuItemWithCommandID(menu, cmd, 1, &ret_menu, &ret_idx) == noErr) {
        if (ret_menu == menu)
            return (int)ret_idx;
    }
    return -1;
}
static int qt_mac_menu_find_action(MenuRef menu, QMacMenuAction *action)
{
    return qt_mac_menu_find_action(menu, action->command);
}

typedef QMultiHash<OSMenuRef, EventHandlerRef> EventHandlerHash;
Q_GLOBAL_STATIC(EventHandlerHash, menu_eventHandlers_hash)

static EventTypeSpec widget_in_menu_events[] = {
    { kEventClassMenu, kEventMenuMeasureItemWidth },
    { kEventClassMenu, kEventMenuMeasureItemHeight },
    { kEventClassMenu, kEventMenuDrawItem },
    { kEventClassMenu, kEventMenuCalculateSize }
};

static OSStatus qt_mac_widget_in_menu_eventHandler(EventHandlerCallRef er, EventRef event, void *)
{
    UInt32 ekind = GetEventKind(event);
    UInt32 eclass = GetEventClass(event);
    OSStatus result = eventNotHandledErr;
    switch (eclass) {
    case kEventClassMenu:
        switch (ekind) {
        default:
            break;
        case kEventMenuMeasureItemWidth: {
            MenuItemIndex item;
            GetEventParameter(event, kEventParamMenuItemIndex, typeMenuItemIndex,
                              0, sizeof(item), 0, &item);
            OSMenuRef menu;
            GetEventParameter(event, kEventParamDirectObject, typeMenuRef, 0, sizeof(menu), 0, &menu);
            QWidget *widget;
            if (GetMenuItemProperty(menu, item, kMenuCreatorQt, kMenuPropertyWidgetActionWidget,
                                 sizeof(widget), 0, &widget) == noErr) {
                short width = short(widget->sizeHint().width());
                SetEventParameter(event, kEventParamMenuItemWidth, typeSInt16,
                                  sizeof(short), &width);
                result = noErr;
            }
            break; }
        case kEventMenuMeasureItemHeight: {
            MenuItemIndex item;
            GetEventParameter(event, kEventParamMenuItemIndex, typeMenuItemIndex,
                              0, sizeof(item), 0, &item);
            OSMenuRef menu;
            GetEventParameter(event, kEventParamDirectObject, typeMenuRef, 0, sizeof(menu), 0, &menu);
            QWidget *widget;
            if (GetMenuItemProperty(menu, item, kMenuCreatorQt, kMenuPropertyWidgetActionWidget,
                                     sizeof(widget), 0, &widget) == noErr && widget) {
                short height = short(widget->sizeHint().height());
                SetEventParameter(event, kEventParamMenuItemHeight, typeSInt16,
                                  sizeof(short), &height);
                result = noErr;
            }
            break; }
        case kEventMenuDrawItem:
            result = noErr;
            break;
        case kEventMenuCalculateSize: {
            result = CallNextEventHandler(er, event);
            if (result == noErr) {
                OSMenuRef menu;
                GetEventParameter(event, kEventParamDirectObject, typeMenuRef, 0, sizeof(menu), 0, &menu);
                HIViewRef content;
                HIMenuGetContentView(menu, kThemeMenuTypePullDown, &content);
                UInt16 count = CountMenuItems(menu);
                for (MenuItemIndex i = 1; i <= count; ++i) {
                    QWidget *widget;
                    if (GetMenuItemProperty(menu, i, kMenuCreatorQt, kMenuPropertyWidgetActionWidget,
                            sizeof(widget), 0, &widget) == noErr && widget) {
                        RgnHandle itemRgn = qt_mac_get_rgn();
                        GetControlRegion(content, i, itemRgn);

                        Rect bounds;
                        GetRegionBounds( itemRgn, &bounds );
                        qt_mac_dispose_rgn(itemRgn);
                        widget->setGeometry(bounds.left, bounds.top,
                                            bounds.right - bounds.left, bounds.bottom - bounds.top);
                    }
                }
            }
            break; }
        }
    }
    return result;
}

//handling of events for menurefs created by Qt..
static EventTypeSpec menu_events[] = {
    { kEventClassCommand, kEventCommandProcess },
    { kEventClassMenu, kEventMenuTargetItem },
    { kEventClassMenu, kEventMenuOpening },
    { kEventClassMenu, kEventMenuClosed }
};

// Special case for kEventMenuMatchKey, see qt_mac_create_menu below.
static EventTypeSpec menu_menu_events[] = {
    { kEventClassMenu, kEventMenuMatchKey }
};

OSStatus qt_mac_menu_event(EventHandlerCallRef er, EventRef event, void *)
{
    QScopedLoopLevelCounter loopLevelCounter(QApplicationPrivate::instance()->threadData);

    bool handled_event = true;
    UInt32 ekind = GetEventKind(event), eclass = GetEventClass(event);
    switch(eclass) {
    case kEventClassCommand:
        if (ekind == kEventCommandProcess) {
            UInt32 context;
            GetEventParameter(event, kEventParamMenuContext, typeUInt32,
                              0, sizeof(context), 0, &context);
            HICommand cmd;
            GetEventParameter(event, kEventParamDirectObject, typeHICommand,
                              0, sizeof(cmd), 0, &cmd);
            if (!mac_keyboard_grabber && (context & kMenuContextKeyMatching)) {
                QMacMenuAction *action = 0;
                if (GetMenuCommandProperty(cmd.menu.menuRef, cmd.commandID, kMenuCreatorQt,
                                          kMenuPropertyQAction, sizeof(action), 0, &action) == noErr) {
                    QWidget *widget = 0;
                    if (qApp->activePopupWidget())
                        widget = (qApp->activePopupWidget()->focusWidget() ?
                                  qApp->activePopupWidget()->focusWidget() : qApp->activePopupWidget());
                    else if (QApplicationPrivate::focus_widget)
                        widget = QApplicationPrivate::focus_widget;
                    if (widget) {
                        int key = action->action->shortcut();
                        QKeyEvent accel_ev(QEvent::ShortcutOverride, (key & (~Qt::KeyboardModifierMask)),
                                           Qt::KeyboardModifiers(key & Qt::KeyboardModifierMask));
                        accel_ev.ignore();
                        qt_sendSpontaneousEvent(widget, &accel_ev);
                        if (accel_ev.isAccepted()) {
                            handled_event = false;
                            break;
                        }
                    }
                }
            }
            handled_event = qt_mac_activate_action(cmd.menu.menuRef, cmd.commandID,
                                                   QAction::Trigger, context & kMenuContextKeyMatching);
        }
        break;
    case kEventClassMenu: {
        MenuRef menu;
        GetEventParameter(event, kEventParamDirectObject, typeMenuRef, NULL, sizeof(menu), NULL, &menu);
        if (ekind == kEventMenuMatchKey) {
            // Don't activate any actions if we are showing a native modal dialog,
            // the key events should go to the dialog in this case.
            if (QApplicationPrivate::native_modal_dialog_active)
                return menuItemNotFoundErr;

             handled_event = false;
        } else if (ekind == kEventMenuTargetItem) {
            MenuCommand command;
            GetEventParameter(event, kEventParamMenuCommand, typeMenuCommand,
                              0, sizeof(command), 0, &command);
            handled_event = qt_mac_activate_action(menu, command, QAction::Hover, false);
        } else if (ekind == kEventMenuOpening || ekind == kEventMenuClosed) {
            qt_mac_menus_open_count += (ekind == kEventMenuOpening) ? 1 : -1;
            MenuRef mr;
            GetEventParameter(event, kEventParamDirectObject, typeMenuRef,
                              0, sizeof(mr), 0, &mr);

            QWidget *widget = 0;
            if (GetMenuItemProperty(mr, 0, kMenuCreatorQt, kMenuPropertyQWidget, sizeof(widget), 0, &widget) == noErr) {
                if (QMenu *qmenu = qobject_cast<QMenu*>(widget)) {
                    handled_event = true;
                    if (ekind == kEventMenuOpening) {
                        emit qmenu->aboutToShow();

                        int merged = 0;
                        const QMenuPrivate::QMacMenuPrivate *mac_menu = qmenu->d_func()->mac_menu;
                        const int ActionItemsCount = mac_menu->actionItems.size();
                        for(int i = 0; i < ActionItemsCount; ++i) {
                            QMacMenuAction *action = mac_menu->actionItems.at(i);
                            if (action->action->isSeparator()) {
                                bool hide = false;
                                if(!action->action->isVisible()) {
                                    hide = true;
                                } else if (merged && merged == i) {
                                    hide = true;
                                } else {
                                    for(int l = i+1; l < mac_menu->actionItems.size(); ++l) {
                                        QMacMenuAction *action = mac_menu->actionItems.at(l);
                                        if (action->merged) {
                                            hide = true;
                                        } else if (action->action->isSeparator()) {
                                            if (hide)
                                                break;
                                        } else if (!action->merged) {
                                            hide = false;
                                            break;
                                        }
                                    }
                                }

                                const int index = qt_mac_menu_find_action(mr, action);
                                if (hide) {
                                    ++merged;
                                    ChangeMenuItemAttributes(mr, index, kMenuItemAttrHidden, 0);
                                } else {
                                    ChangeMenuItemAttributes(mr, index, 0, kMenuItemAttrHidden);
                                }
                            } else if (action->merged) {
                                ++merged;
                            }
                        }
                    } else {
                        emit qmenu->aboutToHide();
                    }
                }
            }
        } else {
            handled_event = false;
        }
        break; }
    default:
        handled_event = false;
        break;
    }
    if (!handled_event) //let the event go through
        return CallNextEventHandler(er, event);
    return noErr; //we eat the event
}
static EventHandlerRef mac_menu_event_handler = 0;
static EventHandlerUPP mac_menu_eventUPP = 0;
static void qt_mac_cleanup_menu_event()
{
    if (mac_menu_event_handler) {
        RemoveEventHandler(mac_menu_event_handler);
        mac_menu_event_handler = 0;
    }
    if (mac_menu_eventUPP) {
        DisposeEventHandlerUPP(mac_menu_eventUPP);
        mac_menu_eventUPP = 0;
    }
}
static inline void qt_mac_create_menu_event_handler()
{
    if (!mac_menu_event_handler) {
        mac_menu_eventUPP = NewEventHandlerUPP(qt_mac_menu_event);
        InstallEventHandler(GetApplicationEventTarget(), mac_menu_eventUPP,
                            GetEventTypeCount(menu_events), menu_events, 0,
                            &mac_menu_event_handler);
        qAddPostRoutine(qt_mac_cleanup_menu_event);
    }
}


//enabling of commands
static void qt_mac_command_set_enabled(MenuRef menu, UInt32 cmd, bool b)
{
    if (cmd == kHICommandQuit)
        qt_mac_quit_menu_item_enabled = b;

    if (b) {
        EnableMenuCommand(menu, cmd);
        if (MenuRef dock_menu = GetApplicationDockTileMenu())
            EnableMenuCommand(dock_menu, cmd);
    } else {
        DisableMenuCommand(menu, cmd);
        if (MenuRef dock_menu = GetApplicationDockTileMenu())
            DisableMenuCommand(dock_menu, cmd);
    }
}

static bool qt_mac_auto_apple_menu(MenuCommand cmd)
{
    return (cmd == kHICommandPreferences || cmd == kHICommandQuit);
}

static void qt_mac_get_accel(quint32 accel_key, quint32 *modif, quint32 *key) {
    if (modif) {
        *modif = constructModifierMask(accel_key);
    }

    accel_key &= ~(Qt::MODIFIER_MASK | Qt::UNICODE_ACCEL);
    if (key) {
        *key = 0;
        if (accel_key == Qt::Key_Return)
            *key = kMenuReturnGlyph;
        else if (accel_key == Qt::Key_Enter)
            *key = kMenuEnterGlyph;
        else if (accel_key == Qt::Key_Tab)
            *key = kMenuTabRightGlyph;
        else if (accel_key == Qt::Key_Backspace)
            *key = kMenuDeleteLeftGlyph;
        else if (accel_key == Qt::Key_Delete)
            *key = kMenuDeleteRightGlyph;
        else if (accel_key == Qt::Key_Escape)
            *key = kMenuEscapeGlyph;
        else if (accel_key == Qt::Key_PageUp)
            *key = kMenuPageUpGlyph;
        else if (accel_key == Qt::Key_PageDown)
            *key = kMenuPageDownGlyph;
        else if (accel_key == Qt::Key_Up)
            *key = kMenuUpArrowGlyph;
        else if (accel_key == Qt::Key_Down)
            *key = kMenuDownArrowGlyph;
        else if (accel_key == Qt::Key_Left)
            *key = kMenuLeftArrowGlyph;
        else if (accel_key == Qt::Key_Right)
            *key = kMenuRightArrowGlyph;
        else if (accel_key == Qt::Key_CapsLock)
            *key = kMenuCapsLockGlyph;
        else if (accel_key >= Qt::Key_F1 && accel_key <= Qt::Key_F15)
            *key = (accel_key - Qt::Key_F1) + kMenuF1Glyph;
        else if (accel_key == Qt::Key_Home)
            *key = kMenuNorthwestArrowGlyph;
        else if (accel_key == Qt::Key_End)
            *key = kMenuSoutheastArrowGlyph;
    }
}
#else // Cocoa
static inline void syncNSMenuItemVisiblity(NSMenuItem *menuItem, bool actionVisibility)
{
    [menuItem setHidden:NO];
    [menuItem setHidden:YES];
    [menuItem setHidden:!actionVisibility];
}

static inline void syncNSMenuItemEnabled(NSMenuItem *menuItem, bool enabled)
{
    [menuItem setEnabled:NO];
    [menuItem setEnabled:YES];
    [menuItem setEnabled:enabled];
}

static inline void syncMenuBarItemsVisiblity(const QMenuBarPrivate::QMacMenuBarPrivate *mac_menubar)
{
    const QList<QMacMenuAction *> &menubarActions = mac_menubar->actionItems;
    for (int i = 0; i < menubarActions.size(); ++i) {
        const QMacMenuAction *action = menubarActions.at(i);
        syncNSMenuItemVisiblity(action->menuItem, actualMenuItemVisibility(mac_menubar, action));
    }
}

static inline QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *getMenuLoader()
{
    return [NSApp QT_MANGLE_NAMESPACE(qt_qcocoamenuLoader)];
}

static NSMenuItem *createNSMenuItem(const QString &title)
{
    NSMenuItem *item = [[NSMenuItem alloc] 
                         initWithTitle:qt_mac_QStringToNSString(title)
                         action:@selector(qtDispatcherToQAction:) keyEquivalent:@""];
    [item setTarget:nil];
    return item;
}
#endif



// helper that recurses into a menu structure and en/dis-ables them
void qt_mac_set_modal_state_helper_recursive(OSMenuRef menu, OSMenuRef merge, bool on)
{
#ifndef QT_MAC_USE_COCOA
    for (int i = 0; i < CountMenuItems(menu); i++) {
        OSMenuRef submenu;
        GetMenuItemHierarchicalMenu(menu, i+1, &submenu);
        if (submenu != merge) {
            if (submenu)
                qt_mac_set_modal_state_helper_recursive(submenu, merge, on);
            if (on)
                DisableMenuItem(submenu, 0);
            else
                EnableMenuItem(submenu, 0);
        }
    }
#else
    bool modalWindowOnScreen = qApp->activeModalWidget() != 0;
    for (NSMenuItem *item in [menu itemArray]) {
        OSMenuRef submenu = [item submenu];
        if (submenu != merge) {
            if (submenu)
                qt_mac_set_modal_state_helper_recursive(submenu, merge, on);
            if (!on) {
                // The item should follow what the QAction has.
                if ([item tag]) {
                    QAction *action = reinterpret_cast<QAction *>([item tag]);
                    syncNSMenuItemEnabled(item, action->isEnabled());
                } else {
                    syncNSMenuItemEnabled(item, YES);
                }
                // We sneak in some extra code here to handle a menu problem:
                // If there is no window on screen, we cannot set 'nil' as
                // menu item target, because then cocoa will disable the item
                // (guess it assumes that there will be no first responder to
                // catch the trigger anyway?) OTOH, If we have a modal window,
                // then setting the menu loader as target will make cocoa not
                // deliver the trigger because the loader is then seen as modally
                // shaddowed). So either way there are shortcomings. Instead, we
                // decide the target as late as possible:
                [item setTarget:modalWindowOnScreen ? nil : getMenuLoader()];
            } else {
                syncNSMenuItemEnabled(item, NO);
            }
        }
    }
#endif
}

//toggling of modal state
static void qt_mac_set_modal_state(OSMenuRef menu, bool on)
{
#ifndef QT_MAC_USE_COCOA
    OSMenuRef merge = 0;
    GetMenuItemProperty(menu, 0, kMenuCreatorQt, kMenuPropertyMergeMenu,
            sizeof(merge), 0, &merge);

    qt_mac_set_modal_state_helper_recursive(menu, merge, on);

    UInt32 commands[] = { kHICommandQuit, kHICommandPreferences, kHICommandAbout, kHICommandAboutQt, 0 };
    for(int c = 0; commands[c]; c++) {
        bool enabled = !on;
        if (enabled) {
            QMacMenuAction *action = 0;
            GetMenuCommandProperty(menu, commands[c], kMenuCreatorQt, kMenuPropertyQAction,
                    sizeof(action), 0, &action);
            if (!action && merge) {
                GetMenuCommandProperty(merge, commands[c], kMenuCreatorQt, kMenuPropertyQAction,
                        sizeof(action), 0, &action);
                if (!action) {
                    QMenuMergeList *list = 0;
                    GetMenuItemProperty(merge, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                            sizeof(list), 0, &list);
                    for(int i = 0; list && i < list->size(); ++i) {
                        QMenuMergeItem item = list->at(i);
                        if (item.command == commands[c] && item.action) {
                            action = item.action;
                            break;
                        }
                    }
                }
            }

            if (!action) {
                if (commands[c] != kHICommandQuit)
                    enabled = false;
            } else {
                enabled = action->action ? action->action->isEnabled() : 0;
            }
        }
        qt_mac_command_set_enabled(menu, commands[c], enabled);
    }
#else
    OSMenuRef merge = QMenuPrivate::mergeMenuHash.value(menu);
    qt_mac_set_modal_state_helper_recursive(menu, merge, on);
    // I'm ignoring the special items now, since they should get handled via a syncAction()
#endif
}

bool qt_mac_menubar_is_open()
{
    return qt_mac_menus_open_count > 0;
}

QMacMenuAction::~QMacMenuAction()
{
#ifdef QT_MAC_USE_COCOA
    [menu release];
    // Update the menu item if this action still owns it. For some items
    // (like 'Quit') ownership will be transferred between all menu bars...
    if (action && action.data() == reinterpret_cast<QAction *>([menuItem tag])) {
        QAction::MenuRole role = action->menuRole();
        // Check if the item is owned by Qt, and should be hidden to keep it from causing
        // problems. Do it for everything but the quit menu item since that should always
        // be visible.
        if (role > QAction::ApplicationSpecificRole && role < QAction::QuitRole) {
            [menuItem setHidden:YES];
        } else if (role == QAction::TextHeuristicRole
                   && menuItem != [getMenuLoader() quitMenuItem]) {
            [menuItem setHidden:YES];
        }
        [menuItem setTag:nil];
    }
    [menuItem release];
#endif
}

#ifndef QT_MAC_USE_COCOA
static MenuCommand qt_mac_menu_merge_action(MenuRef merge, QMacMenuAction *action)
#else
static NSMenuItem *qt_mac_menu_merge_action(OSMenuRef merge, QMacMenuAction *action)
#endif
{
    if (qt_mac_no_menubar_merge || action->action->menu() || action->action->isSeparator()
            || action->action->menuRole() == QAction::NoRole)
        return 0;

    QString t = qt_mac_removeMnemonics(action->action->text().toLower());
    int st = t.lastIndexOf(QLatin1Char('\t'));
    if (st != -1)
        t.remove(st, t.length()-st);
    t.replace(QRegExp(QString::fromLatin1("\\.*$")), QLatin1String("")); //no ellipses
    //now the fun part
#ifndef QT_MAC_USE_COCOA
    MenuCommand ret = 0;
#else
    NSMenuItem *ret = 0;
    QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
#endif
    switch (action->action->menuRole()) {
    case QAction::NoRole:
        ret = 0;
        break;
    case QAction::ApplicationSpecificRole:
#ifndef QT_MAC_USE_COCOA
        {
            QMenuMergeList *list = 0;
            if (GetMenuItemProperty(merge, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                        sizeof(list), 0, &list) == noErr && list) {
                MenuCommand lastCustom = kHICommandCustomMerge;
                for(int i = 0; i < list->size(); ++i) {
                    QMenuMergeItem item = list->at(i);
                    if (item.command == lastCustom)
                        ++lastCustom;
                }
                ret = lastCustom;
            } else {
                // The list hasn't been created, so, must be the first one.
                ret = kHICommandCustomMerge;
            }
        }
#else
        ret = [loader appSpecificMenuItem];
#endif
        break;
    case QAction::AboutRole:
#ifndef QT_MAC_USE_COCOA
        ret = kHICommandAbout;
#else
        ret = [loader aboutMenuItem];
#endif
        break;
    case QAction::AboutQtRole:
#ifndef QT_MAC_USE_COCOA
        ret = kHICommandAboutQt;
#else
        ret = [loader aboutQtMenuItem];
#endif
        break;
    case QAction::QuitRole:
#ifndef QT_MAC_USE_COCOA
        ret = kHICommandQuit;
#else
        ret = [loader quitMenuItem];
#endif
        break;
    case QAction::PreferencesRole:
#ifndef QT_MAC_USE_COCOA
        ret = kHICommandPreferences;
#else
        ret = [loader preferencesMenuItem];
#endif
        break;
    case QAction::TextHeuristicRole: {
        QString aboutString = QMenuBar::tr("About").toLower();
        if (t.startsWith(aboutString) || t.endsWith(aboutString)) {
            if (t.indexOf(QRegExp(QString::fromLatin1("qt$"), Qt::CaseInsensitive)) == -1) {
#ifndef QT_MAC_USE_COCOA
                ret = kHICommandAbout;
#else
                ret = [loader aboutMenuItem];
#endif
            } else {
#ifndef QT_MAC_USE_COCOA
                ret = kHICommandAboutQt;
#else
                ret = [loader aboutQtMenuItem];
#endif
            }
        } else if (t.startsWith(QMenuBar::tr("Config").toLower())
                   || t.startsWith(QMenuBar::tr("Preference").toLower())
                   || t.startsWith(QMenuBar::tr("Options").toLower())
                   || t.startsWith(QMenuBar::tr("Setting").toLower())
                   || t.startsWith(QMenuBar::tr("Setup").toLower())) {
#ifndef QT_MAC_USE_COCOA
            ret = kHICommandPreferences;
#else
            ret = [loader preferencesMenuItem];
#endif
        } else if (t.startsWith(QMenuBar::tr("Quit").toLower())
                   || t.startsWith(QMenuBar::tr("Exit").toLower())) {
#ifndef QT_MAC_USE_COCOA
            ret = kHICommandQuit;
#else
            ret = [loader quitMenuItem];
#endif
        }
    }
        break;
    }

#ifndef QT_MAC_USE_COCOA
    QMenuMergeList *list = 0;
    if (GetMenuItemProperty(merge, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                           sizeof(list), 0, &list) == noErr && list) {
        for(int i = 0; i < list->size(); ++i) {
            QMenuMergeItem item = list->at(i);
            if (item.command == ret && item.action)
                return 0;
        }
    }

    QAction *cmd_action = 0;
    if (GetMenuCommandProperty(merge, ret, kMenuCreatorQt, kMenuPropertyQAction,
                              sizeof(cmd_action), 0, &cmd_action) == noErr && cmd_action)
        return 0; //already taken
#else
    if (QMenuMergeList *list = QMenuPrivate::mergeMenuItemsHash.value(merge)) {
        for(int i = 0; i < list->size(); ++i) {
            const QMenuMergeItem &item = list->at(i);
            if (item.menuItem == ret && item.action)
                return 0;
        }
    }

#endif
    return ret;
}

static QString qt_mac_menu_merge_text(QMacMenuAction *action)
{
    QString ret;
    extern QString qt_mac_applicationmenu_string(int type);
#ifdef QT_MAC_USE_COCOA
    QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
#endif
    if (action->action->menuRole() == QAction::ApplicationSpecificRole)
        ret = action->action->text();
#ifndef QT_MAC_USE_COCOA
    else if (action->command == kHICommandAbout)
        ret = qt_mac_applicationmenu_string(6).arg(qAppName());
    else if (action->command == kHICommandAboutQt)
        ret = QMenuBar::tr("About Qt");
    else if (action->command == kHICommandPreferences)
        ret = qt_mac_applicationmenu_string(4);
    else if (action->command == kHICommandQuit)
        ret = qt_mac_applicationmenu_string(5).arg(qAppName());
#else
    else if (action->menuItem == [loader aboutMenuItem]) {
        ret = qt_mac_applicationmenu_string(6).arg(qAppName());
    } else if (action->menuItem == [loader aboutQtMenuItem]) {
        if (action->action->text() == QString("About Qt"))
            ret = QMenuBar::tr("About Qt");
        else
            ret = action->action->text();
    } else if (action->menuItem == [loader preferencesMenuItem]) {
        ret = qt_mac_applicationmenu_string(4);
    } else if (action->menuItem == [loader quitMenuItem]) {
        ret = qt_mac_applicationmenu_string(5).arg(qAppName());
    }
#endif
    return ret;
}

static QKeySequence qt_mac_menu_merge_accel(QMacMenuAction *action)
{
    QKeySequence ret;
#ifdef QT_MAC_USE_COCOA
    QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
#endif
    if (action->action->menuRole() == QAction::ApplicationSpecificRole)
        ret = action->action->shortcut();
#ifndef QT_MAC_USE_COCOA
    else if (action->command == kHICommandPreferences)
        ret = QKeySequence(QKeySequence::Preferences);
    else if (action->command == kHICommandQuit)
        ret = QKeySequence(QKeySequence::Quit);
#else
    else if (action->menuItem == [loader preferencesMenuItem])
        ret = QKeySequence(QKeySequence::Preferences);
    else if (action->menuItem == [loader quitMenuItem])
        ret = QKeySequence(QKeySequence::Quit);
#endif
    return ret;
}

void Q_GUI_EXPORT qt_mac_set_menubar_icons(bool b)
{ QApplication::instance()->setAttribute(Qt::AA_DontShowIconsInMenus, !b); }
void Q_GUI_EXPORT qt_mac_set_native_menubar(bool b)
{  QApplication::instance()->setAttribute(Qt::AA_DontUseNativeMenuBar, !b); }
void Q_GUI_EXPORT qt_mac_set_menubar_merge(bool b) { qt_mac_no_menubar_merge = !b; }

/*****************************************************************************
  QMenu bindings
 *****************************************************************************/
QMenuPrivate::QMacMenuPrivate::QMacMenuPrivate() : menu(0)
{
}

QMenuPrivate::QMacMenuPrivate::~QMacMenuPrivate()
{
#ifndef QT_MAC_USE_COCOA
    for(QList<QMacMenuAction*>::Iterator it = actionItems.begin(); it != actionItems.end(); ++it) {
        QMacMenuAction *action = (*it);
        RemoveMenuCommandProperty(action->menu, action->command, kMenuCreatorQt, kMenuPropertyQAction);
        if (action->merged) {
            QMenuMergeList *list = 0;
            GetMenuItemProperty(action->menu, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                                sizeof(list), 0, &list);
            for(int i = 0; list && i < list->size(); ) {
                QMenuMergeItem item = list->at(i);
                if (item.action == action)
                    list->removeAt(i);
                else
                    ++i;
            }
        }
        delete action;
    }
    if (menu) {
        EventHandlerHash::iterator it = menu_eventHandlers_hash()->find(menu);
        while (it != menu_eventHandlers_hash()->end() && it.key() == menu) {
            RemoveEventHandler(it.value());
            ++it;
        }
        menu_eventHandlers_hash()->remove(menu);
        ReleaseMenu(menu);
    }
#else
    QMacCocoaAutoReleasePool pool;
    while (actionItems.size()) {
        QMacMenuAction *action = actionItems.takeFirst();
        if (QMenuMergeList *list = mergeMenuItemsHash.value(action->menu)) {
            int i = 0;
            while (i < list->size()) {
                const QMenuMergeItem &item = list->at(i);
                if (item.action == action)
                    list->removeAt(i);
                else
                    ++i;
            }
        }
        delete action;
    }
    mergeMenuHash.remove(menu);
    mergeMenuItemsHash.remove(menu);
    [menu release];
#endif
}

void
QMenuPrivate::QMacMenuPrivate::addAction(QAction *a, QMacMenuAction *before, QMenuPrivate *qmenu)
{
    QMacMenuAction *action = new QMacMenuAction;
    action->action = a;
    action->ignore_accel = 0;
    action->merged = 0;
    action->menu = 0;
#ifndef QT_MAC_USE_COCOA
    action->command = qt_mac_menu_static_cmd_id++;
#endif
    addAction(action, before, qmenu);
}

void
QMenuPrivate::QMacMenuPrivate::addAction(QMacMenuAction *action, QMacMenuAction *before, QMenuPrivate *qmenu)
{
#ifdef QT_MAC_USE_COCOA
    QMacCocoaAutoReleasePool pool;
    Q_UNUSED(qmenu);
#endif
    if (!action)
        return;
    int before_index = actionItems.indexOf(before);
    if (before_index < 0) {
        before = 0;
        before_index = actionItems.size();
    }
    actionItems.insert(before_index, action);

#ifndef QT_MAC_USE_COCOA
    int index = qt_mac_menu_find_action(menu, action);
#else
    [menu retain];
    [action->menu release];
#endif
    action->menu = menu;

    /* When the action is considered a mergable action it
       will stay that way, until removed.. */
    if (!qt_mac_no_menubar_merge) {
#ifndef QT_MAC_USE_COCOA
        MenuRef merge = 0;
        GetMenuItemProperty(menu, 0, kMenuCreatorQt, kMenuPropertyMergeMenu,
                            sizeof(merge), 0, &merge);
#else
        OSMenuRef merge = QMenuPrivate::mergeMenuHash.value(menu);
#endif
        if (merge) {
#ifndef QT_MAC_USE_COCOA
            if (MenuCommand cmd = qt_mac_menu_merge_action(merge, action)) {
                action->merged = 1;
                action->menu = merge;
                action->command = cmd;
                if (qt_mac_auto_apple_menu(cmd))
                    index = 0; //no need

                QMenuMergeList *list = 0;
                if (GetMenuItemProperty(merge, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                                       sizeof(list), 0, &list) != noErr || !list) {
                    list = new QMenuMergeList;
                    SetMenuItemProperty(merge, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                                        sizeof(list), &list);
                }
                list->append(QMenuMergeItem(cmd, action));
            }
#else
            if (NSMenuItem *cmd = qt_mac_menu_merge_action(merge, action)) {
                action->merged = 1;
                [merge retain];
                [action->menu release];
                action->menu = merge;
                [cmd retain];
                [cmd setAction:@selector(qtDispatcherToQAction:)];
                [cmd setTarget:nil];
                [action->menuItem release];
                action->menuItem = cmd;
                QMenuMergeList *list = QMenuPrivate::mergeMenuItemsHash.value(merge);
                if (!list) {
                    list = new QMenuMergeList;
                    QMenuPrivate::mergeMenuItemsHash.insert(merge, list);
                }
                list->append(QMenuMergeItem(cmd, action));
            }
#endif
        }
    }

#ifdef QT_MAC_USE_COCOA
    NSMenuItem *newItem = action->menuItem;
#endif
    if (
#ifndef QT_MAC_USE_COCOA
        index == -1
#else
        newItem == 0
#endif
       ) {
#ifndef QT_MAC_USE_COCOA
        index = before_index;
        MenuItemAttributes attr = kMenuItemAttrAutoRepeat;
#else
        newItem = createNSMenuItem(action->action->text());
        action->menuItem = newItem;
#endif
        if (before) {
#ifndef QT_MAC_USE_COCOA
            InsertMenuItemTextWithCFString(action->menu, 0, qMax(before_index, 0), attr, action->command);
#else
            [menu insertItem:newItem atIndex:qMax(before_index, 0)];
#endif
        } else {
#ifndef QT_MAC_USE_COCOA
            // Append the menu item to the menu. If it is a kHICommandAbout or a kHICommandAboutQt append
            // a separator also (to get a separator above "Preferences"), but make sure that we don't
            // add separators between two "about" items.

            // Build a set of all commands that could possibly be before the separator.
            QSet<MenuCommand> mergedItems;
            mergedItems.insert(kHICommandAbout);
            mergedItems.insert(kHICommandAboutQt);
            mergedItems.insert(kHICommandCustomMerge);

            QMenuMergeList *list = 0;
            if (GetMenuItemProperty(action->menu, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                        sizeof(list), 0, &list) == noErr && list) {
                for (int i = 0; i < list->size(); ++i) {
                    MenuCommand command = list->at(i).command;
                    if (command > kHICommandCustomMerge) {
                        mergedItems.insert(command);
                    }
                }
            }

            const int itemCount = CountMenuItems(action->menu);
            MenuItemAttributes testattr;
            GetMenuItemAttributes(action->menu, itemCount , &testattr);
            if (mergedItems.contains(action->command)
                 && (testattr & kMenuItemAttrSeparator)) {
                InsertMenuItemTextWithCFString(action->menu, 0, qMax(itemCount - 1, 0), attr, action->command);
                index = itemCount;
            } else {
                MenuItemIndex tmpIndex;
                AppendMenuItemTextWithCFString(action->menu, 0, attr, action->command, &tmpIndex);
                index = tmpIndex;
                if (mergedItems.contains(action->command))
                    AppendMenuItemTextWithCFString(action->menu, 0, kMenuItemAttrSeparator, 0, &tmpIndex);
            }
#else
            [menu addItem:newItem];
#endif
        }

        QWidget *widget = qmenu ? qmenu->widgetItems.value(action->action) : 0;
        if (widget) {
#ifndef QT_MAC_USE_COCOA
            ChangeMenuAttributes(action->menu, kMenuAttrDoNotCacheImage, 0);
            attr = kMenuItemAttrCustomDraw;
            SetMenuItemProperty(action->menu, index, kMenuCreatorQt, kMenuPropertyWidgetActionWidget,
                                sizeof(QWidget *), &widget);
            HIViewRef content;
            HIMenuGetContentView(action->menu, kThemeMenuTypePullDown, &content);

            EventHandlerRef eventHandlerRef;
            InstallMenuEventHandler(action->menu, qt_mac_widget_in_menu_eventHandler,
                                    GetEventTypeCount(widget_in_menu_events),
                                    widget_in_menu_events, 0, &eventHandlerRef);
            menu_eventHandlers_hash()->insert(action->menu, eventHandlerRef);

            QWidget *menuWidget = 0;
            GetMenuItemProperty(action->menu, 0, kMenuCreatorQt, kMenuPropertyWidgetMenu,
                                sizeof(menuWidget), 0, &menuWidget);
            if(!menuWidget) {
                menuWidget = new QMacNativeWidget(content);
                SetMenuItemProperty(menu, 0, kMenuCreatorQt, kMenuPropertyWidgetMenu,
                                    sizeof(menuWidget), &menuWidget);
                menuWidget->show();
            }
            widget->setParent(menuWidget);
#else
            QMacNativeWidget *container = new QMacNativeWidget(0);
            container->resize(widget->sizeHint());
            widget->setAttribute(Qt::WA_LayoutUsesWidgetRect);
            widget->setParent(container);

            NSView *containerView = qt_mac_nativeview_for(container);
            [containerView setAutoresizesSubviews:YES];
            [containerView setAutoresizingMask:NSViewWidthSizable];
            [qt_mac_nativeview_for(widget) setAutoresizingMask:NSViewWidthSizable];

            [newItem setView:containerView];
            container->show();
#endif
            widget->show();
        }

    } else {
#ifndef QT_MAC_USE_COCOA
        qt_mac_command_set_enabled(action->menu, action->command, !QApplicationPrivate::modalState());
#else
        [newItem setEnabled:!QApplicationPrivate::modalState()];
#endif
    }
#ifndef QT_MAC_USE_COCOA
    SetMenuCommandProperty(action->menu, action->command, kMenuCreatorQt, kMenuPropertyQAction,
                           sizeof(action), &action);
#else
    [newItem setTag:long(static_cast<QAction *>(action->action))];
#endif
    syncAction(action);
}

// return an autoreleased string given a QKeySequence (currently only looks at the first one).
NSString *keySequenceToKeyEqivalent(const QKeySequence &accel)
{
    quint32 accel_key = (accel[0] & ~(Qt::MODIFIER_MASK | Qt::UNICODE_ACCEL));
    extern QChar qtKey2CocoaKey(Qt::Key key);
    QChar cocoa_key = qtKey2CocoaKey(Qt::Key(accel_key));
    if (cocoa_key.isNull())
        cocoa_key = QChar(accel_key).toLower().unicode();
    return [NSString stringWithCharacters:&cocoa_key.unicode() length:1];
}

// return the cocoa modifier mask for the QKeySequence (currently only looks at the first one).
NSUInteger keySequenceModifierMask(const QKeySequence &accel)
{
    return constructModifierMask(accel[0]);
}

void
QMenuPrivate::QMacMenuPrivate::syncAction(QMacMenuAction *action)
{
    if (!action)
        return;

#ifndef QT_MAC_USE_COCOA
    const int index = qt_mac_menu_find_action(action->menu, action);
    if (index == -1)
        return;
#else
    NSMenuItem *item = action->menuItem;
    if (!item)
        return;
#endif

#ifndef QT_MAC_USE_COCOA
    if (!action->action->isVisible()) {
        ChangeMenuItemAttributes(action->menu, index, kMenuItemAttrHidden, 0);
        return;
    }
    ChangeMenuItemAttributes(action->menu, index, 0, kMenuItemAttrHidden);
#else
    QMacCocoaAutoReleasePool pool;
    NSMenu *menu = [item menu];
    bool actionVisible = action->action->isVisible();
    [item setHidden:!actionVisible];
    if (!actionVisible)
        return;
#endif

#ifndef QT_MAC_USE_COCOA
    if (action->action->isSeparator()) {
        ChangeMenuItemAttributes(action->menu, index, kMenuItemAttrSeparator, 0);
        return;
    }
    ChangeMenuItemAttributes(action->menu, index, 0, kMenuItemAttrSeparator);
#else
    int itemIndex = [menu indexOfItem:item];
    Q_ASSERT(itemIndex != -1);
    if (action->action->isSeparator()) {
        action->menuItem = [NSMenuItem separatorItem];
        [action->menuItem retain];
        [menu insertItem: action->menuItem atIndex:itemIndex];
        [menu removeItem:item];
        [item release];
        item = action->menuItem;
        return;
    } else if ([item isSeparatorItem]) {
        // I'm no longer a separator...
        action->menuItem = createNSMenuItem(action->action->text());
        [menu insertItem:action->menuItem atIndex:itemIndex];
        [menu removeItem:item];
        [item release];
        item = action->menuItem;
    }
#endif

    //find text (and accel)
    action->ignore_accel = 0;
    QString text = action->action->text();
    QKeySequence accel = action->action->shortcut();
    {
        int st = text.lastIndexOf(QLatin1Char('\t'));
        if (st != -1) {
            action->ignore_accel = 1;
            accel = QKeySequence(text.right(text.length()-(st+1)));
            text.remove(st, text.length()-st);
        }
    }
    {
        QString cmd_text = qt_mac_menu_merge_text(action);
        if (!cmd_text.isEmpty()) {
            text = cmd_text;
            accel = qt_mac_menu_merge_accel(action);
        }
    }
    // Show multiple key sequences as part of the menu text.
    if (accel.count() > 1)
        text += QLatin1String(" (") + accel.toString(QKeySequence::NativeText) + QLatin1String(")");

    QString finalString = qt_mac_removeMnemonics(text);

#ifndef QT_MAC_USE_COCOA
    MenuItemDataRec data;
    memset(&data, '\0', sizeof(data));

    //Carbon text
    data.whichData |= kMenuItemDataCFString;
    QCFString cfstring(finalString);  // Hold the reference to the end of the function.
    data.cfText = cfstring;

    // Carbon enabled
    data.whichData |= kMenuItemDataEnabled;
    data.enabled = action->action->isEnabled();
    // Carbon icon
    data.whichData |= kMenuItemDataIconHandle;
    if (!action->action->icon().isNull()
            && action->action->isIconVisibleInMenu()) {
        data.iconType = kMenuIconRefType;
        data.iconHandle = (Handle)qt_mac_create_iconref(action->action->icon().pixmap(16, QIcon::Normal));
    } else {
        data.iconType = kMenuNoIcon;
    }
    if (action->action->font().resolve()) { // Carbon font
        if (action->action->font().bold())
            data.style |= bold;
        if (action->action->font().underline())
            data.style |= underline;
        if (action->action->font().italic())
            data.style |= italic;
        if (data.style)
            data.whichData |= kMenuItemDataStyle;
        data.whichData |= kMenuItemDataFontID;
        data.fontID = action->action->font().macFontID();
    }
#else
    // Cocoa Font and title
    if (action->action->font().resolve()) {
        const QFont &actionFont = action->action->font();
        NSFont *customMenuFont = [NSFont fontWithName:qt_mac_QStringToNSString(actionFont.family())
                                  size:actionFont.pointSize()];
        NSArray *keys = [NSArray arrayWithObjects:NSFontAttributeName, nil];
        NSArray *objects = [NSArray arrayWithObjects:customMenuFont, nil];
        NSDictionary *attributes = [NSDictionary dictionaryWithObjects:objects forKeys:keys];
        NSAttributedString *str = [[[NSAttributedString alloc] initWithString:qt_mac_QStringToNSString(finalString)
                                 attributes:attributes] autorelease];
       [item setAttributedTitle: str];
    } else {
        [item setTitle: qt_mac_QStringToNSString(finalString)];
    }

    if (action->action->menuRole() == QAction::AboutRole || action->action->menuRole() == QAction::QuitRole)
        [item setTitle:qt_mac_QStringToNSString(text)];
    else
        [item setTitle:qt_mac_QStringToNSString(qt_mac_removeMnemonics(text))];

    // Cocoa Enabled
    [item setEnabled: action->action->isEnabled()];

    // Cocoa icon
    NSImage *nsimage = 0;
    if (!action->action->icon().isNull() && action->action->isIconVisibleInMenu()) {
        nsimage = static_cast<NSImage *>(qt_mac_create_nsimage(action->action->icon().pixmap(16, QIcon::Normal)));
    }
    [item setImage:nsimage];
    [nsimage release];
#endif

    if (action->action->menu()) { //submenu
#ifndef QT_MAC_USE_COCOA
        data.whichData |= kMenuItemDataSubmenuHandle;
        data.submenuHandle = action->action->menu()->macMenu();
        QWidget *caused = 0;
        GetMenuItemProperty(action->menu, 0, kMenuCreatorQt, kMenuPropertyQWidget, sizeof(caused), 0, &caused);
        SetMenuItemProperty(data.submenuHandle, 0, kMenuCreatorQt, kMenuPropertyCausedQWidget, sizeof(caused), &caused);
#else
        NSMenu *subMenu  = static_cast<NSMenu *>(action->action->menu()->macMenu());
        if ([subMenu supermenu] && [subMenu supermenu] != [item menu]) {
            // The menu is already a sub-menu of another one. Cocoa will throw an exception,
            // in such cases. For the time being, a new QMenu with same set of actions is the
            // only workaround.
            action->action->setEnabled(false);
        } else {
            [item setSubmenu:subMenu];
        }
        [item setAction:nil];
#endif
    } else { //respect some other items
#ifndef QT_MAC_USE_COCOA
        //shortcuts (say we are setting them all so that we can also clear them).
        data.whichData |= kMenuItemDataCmdKey;
        data.whichData |= kMenuItemDataCmdKeyModifiers;
        data.whichData |= kMenuItemDataCmdKeyGlyph;
        if (accel.count() == 1) {
            qt_mac_get_accel(accel[0], (quint32*)&data.cmdKeyModifiers, (quint32*)&data.cmdKeyGlyph);
            if (data.cmdKeyGlyph == 0)
                data.cmdKey = (UniChar)accel[0];
        }
#else
        [item setSubmenu:0];
        if ([item action] == nil)
            [item setAction:@selector(qtDispatcherToQAction:)];
        // No key equivalent set for multiple key QKeySequence.
        if (accel.count() == 1) {
            [item setKeyEquivalent:keySequenceToKeyEqivalent(accel)];
            [item setKeyEquivalentModifierMask:keySequenceModifierMask(accel)];
        } else {
            [item setKeyEquivalent:@""];
            [item setKeyEquivalentModifierMask:NSCommandKeyMask];
        }
#endif
    }
#ifndef QT_MAC_USE_COCOA
    //mark glyph
    data.whichData |= kMenuItemDataMark;
    if (action->action->isChecked()) {
#if 0
        if (action->action->actionGroup() &&
           action->action->actionGroup()->isExclusive())
            data.mark = diamondMark;
        else
#endif
            data.mark = checkMark;
    } else {
        data.mark = noMark;
    }

    //actually set it
    SetMenuItemData(action->menu, action->command, true, &data);

    // Free up memory
    if (data.iconHandle)
        ReleaseIconRef(IconRef(data.iconHandle));
#else
    //mark glyph
    [item setState:action->action->isChecked() ?  NSOnState : NSOffState];
#endif
}

void
QMenuPrivate::QMacMenuPrivate::removeAction(QMacMenuAction *action)
{
    if (!action)
        return;
#ifndef QT_MAC_USE_COCOA
    if (action->command == kHICommandQuit || action->command == kHICommandPreferences)
        qt_mac_command_set_enabled(action->menu, action->command, false);
    else
        DeleteMenuItem(action->menu, qt_mac_menu_find_action(action->menu, action));
#else
    QMacCocoaAutoReleasePool pool;
    if (action->merged) {
        if (reinterpret_cast<QAction *>([action->menuItem tag]) == action->action) {
            QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
            [action->menuItem setEnabled:false];
            if (action->menuItem != [loader quitMenuItem]
                && action->menuItem != [loader preferencesMenuItem]) {
                [[action->menuItem menu] removeItem:action->menuItem];
            }
            if (QMenuMergeList *list = mergeMenuItemsHash.value(action->menu)) {
                int i = 0;
                while (i < list->size()) {
                    const QMenuMergeItem &item = list->at(i);
                    if (item.action == action)
                        list->removeAt(i);
                    else
                        ++i;
                }
            }
        }
    } else {
        [[action->menuItem menu] removeItem:action->menuItem];
    }
#endif
    actionItems.removeAll(action);
}

OSMenuRef
QMenuPrivate::macMenu(OSMenuRef merge)
{
    Q_UNUSED(merge);
    Q_Q(QMenu);
    if (mac_menu && mac_menu->menu)
        return mac_menu->menu;
    if (!mac_menu)
        mac_menu = new QMacMenuPrivate;
    mac_menu->menu = qt_mac_create_menu(q);
    if (merge) {
#ifndef QT_MAC_USE_COCOA
        SetMenuItemProperty(mac_menu->menu, 0, kMenuCreatorQt, kMenuPropertyMergeMenu, sizeof(merge), &merge);
#else
        mergeMenuHash.insert(mac_menu->menu, merge);
#endif
    }
    QList<QAction*> items = q->actions();
    for(int i = 0; i < items.count(); i++)
        mac_menu->addAction(items[i], 0, this);
    syncSeparatorsCollapsible(collapsibleSeparators);
    return mac_menu->menu;
}

void
QMenuPrivate::syncSeparatorsCollapsible(bool collapse)
{
#ifndef QT_MAC_USE_COCOA
    if (collapse)
        ChangeMenuAttributes(mac_menu->menu, kMenuAttrCondenseSeparators, 0);
    else
        ChangeMenuAttributes(mac_menu->menu, 0, kMenuAttrCondenseSeparators);
#else
    qt_mac_menu_collapseSeparators(mac_menu->menu, collapse);
#endif
}



#ifndef QT_MAC_USE_COCOA

void QMenuPrivate::setMacMenuEnabled(bool enable)
{
    if (!macMenu(0))
        return;

    QMacCocoaAutoReleasePool pool;
    if (enable) {
        for (int i = 0; i < mac_menu->actionItems.count(); ++i) {
            QMacMenuAction *menuItem = mac_menu->actionItems.at(i);
            if (menuItem && menuItem->action && menuItem->action->isEnabled()) {
                // Only enable those items which contains an enabled QAction.
                // i == 0 -> the menu itself, hence i + 1 for items.
                EnableMenuItem(mac_menu->menu, i + 1);
            }
        }
    } else {
        DisableAllMenuItems(mac_menu->menu);
    }
}
#endif

OSMenuRef QMenu::macMenu(OSMenuRef merge) { return d_func()->macMenu(merge); }

/*****************************************************************************
  QMenuBar bindings
 *****************************************************************************/
typedef QHash<QWidget *, QMenuBar *> MenuBarHash;
Q_GLOBAL_STATIC(MenuBarHash, menubars)
static QMenuBar *fallback = 0;
QMenuBarPrivate::QMacMenuBarPrivate::QMacMenuBarPrivate() : menu(0), apple_menu(0)
{
}

QMenuBarPrivate::QMacMenuBarPrivate::~QMacMenuBarPrivate()
{
    for(QList<QMacMenuAction*>::Iterator it = actionItems.begin(); it != actionItems.end(); ++it)
        delete (*it);
#ifndef QT_MAC_USE_COCOA
    if (apple_menu) {
        QMenuMergeList *list = 0;
        GetMenuItemProperty(apple_menu, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                            sizeof(list), 0, &list);
        if (list) {
            RemoveMenuItemProperty(apple_menu, 0, kMenuCreatorQt, kMenuPropertyMergeList);
            delete list;
        }
        ReleaseMenu(apple_menu);
    }
    if (menu)
        ReleaseMenu(menu);
#else
    [apple_menu release];
    [menu release];
#endif
}

void
QMenuBarPrivate::QMacMenuBarPrivate::addAction(QAction *a, QAction *before)
{
    if (a->isSeparator() || !menu)
        return;
    QMacMenuAction *action = new QMacMenuAction;
    action->action = a;
    action->ignore_accel = 1;
#ifndef QT_MAC_USE_COCOA
    action->command = qt_mac_menu_static_cmd_id++;
#endif
    addAction(action, findAction(before));
}

void
QMenuBarPrivate::QMacMenuBarPrivate::addAction(QMacMenuAction *action, QMacMenuAction *before)
{
    if (!action || !menu)
        return;

    int before_index = actionItems.indexOf(before);
    if (before_index < 0) {
        before = 0;
        before_index = actionItems.size();
    }
    actionItems.insert(before_index, action);

    MenuItemIndex index = actionItems.size()-1;

    action->menu = menu;
#ifdef QT_MAC_USE_COCOA
    QMacCocoaAutoReleasePool pool;
    [action->menu retain];
    NSMenuItem *newItem = createNSMenuItem(action->action->text());
    action->menuItem = newItem;
#endif
    if (before) {
#ifndef QT_MAC_USE_COCOA
        InsertMenuItemTextWithCFString(action->menu, 0, qMax(1, before_index+1), 0, action->command);
#else
        [menu insertItem:newItem atIndex:qMax(1, before_index + 1)];
#endif
        index = before_index;
    } else {
#ifndef QT_MAC_USE_COCOA
        AppendMenuItemTextWithCFString(action->menu, 0, 0, action->command, &index);
#else
        [menu addItem:newItem];
#endif
    }
#ifndef QT_MAC_USE_COCOA
    SetMenuItemProperty(action->menu, index, kMenuCreatorQt, kMenuPropertyQAction, sizeof(action),
                        &action);
#else
    [newItem setTag:long(static_cast<QAction *>(action->action))];
#endif
    syncAction(action);
}

void
QMenuBarPrivate::QMacMenuBarPrivate::syncAction(QMacMenuAction *action)
{
    if (!action || !menu)
        return;
#ifndef QT_MAC_USE_COCOA
    const int index = qt_mac_menu_find_action(action->menu, action);
#else
    QMacCocoaAutoReleasePool pool;
    NSMenuItem *item = action->menuItem;
#endif

    OSMenuRef submenu = 0;
    bool release_submenu = false;
    if (action->action->menu()) {
        if ((submenu = action->action->menu()->macMenu(apple_menu))) {
#ifndef QT_MAC_USE_COCOA
            QWidget *caused = 0;
            GetMenuItemProperty(action->menu, 0, kMenuCreatorQt, kMenuPropertyQWidget, sizeof(caused), 0, &caused);
            SetMenuItemProperty(submenu, 0, kMenuCreatorQt, kMenuPropertyCausedQWidget, sizeof(caused), &caused);
#else
            if ([submenu supermenu] && [submenu supermenu] != [item menu])
                return;
            else
                [item setSubmenu:submenu];
#endif
        }
#ifndef QT_MAC_USE_COCOA
    } else { // create a submenu to act as menu
        release_submenu = true;
        CreateNewMenu(0, 0, &submenu);
#endif
    }

    if (submenu) {
        bool visible = actualMenuItemVisibility(this, action);
#ifndef QT_MAC_USE_COCOA
        SetMenuItemHierarchicalMenu(action->menu, index, submenu);
        SetMenuTitleWithCFString(submenu, QCFString(qt_mac_removeMnemonics(action->action->text())));
        if (visible)
            ChangeMenuAttributes(submenu, 0, kMenuAttrHidden);
        else
            ChangeMenuAttributes(submenu, kMenuAttrHidden, 0);
#else
        [item setSubmenu: submenu];
        [submenu setTitle:qt_mac_QStringToNSString(qt_mac_removeMnemonics(action->action->text()))];
        syncNSMenuItemVisiblity(item, visible);
        syncNSMenuItemEnabled(item, action->action->isEnabled());
#endif
        if (release_submenu) { //no pointers to it
#ifndef QT_MAC_USE_COCOA
            ReleaseMenu(submenu);
#else
            [submenu release];
#endif
        }
    } else {
        qWarning("QMenu: No OSMenuRef created for popup menu");
    }
}

void
QMenuBarPrivate::QMacMenuBarPrivate::removeAction(QMacMenuAction *action)
{
    if (!action || !menu)
        return;
#ifndef QT_MAC_USE_COCOA
    DeleteMenuItem(action->menu, qt_mac_menu_find_action(action->menu, action));
#else
    QMacCocoaAutoReleasePool pool;
    [action->menu removeItem:action->menuItem];
#endif
    actionItems.removeAll(action);
}

bool QMenuBarPrivate::macWidgetHasNativeMenubar(QWidget *widget)
{
    // This function is different from q->isNativeMenuBar(), as
    // it returns true only if a native menu bar is actually
    // _created_.
    if (!widget)
        return false;
    return menubars()->contains(widget->window());
}

void
QMenuBarPrivate::macCreateMenuBar(QWidget *parent)
{
    Q_Q(QMenuBar);
    static int dontUseNativeMenuBar = -1;
    // We call the isNativeMenuBar function here
    // because that will make sure that local overrides
    // are dealt with correctly. q->isNativeMenuBar() will, if not
    // overridden, depend on the attribute Qt::AA_DontUseNativeMenuBar:
    bool qt_mac_no_native_menubar = !q->isNativeMenuBar();
    if (qt_mac_no_native_menubar == false && dontUseNativeMenuBar < 0) {
        // The menubar is set to be native. Let's check (one time only
        // for all menubars) if this is OK with the rest of the environment.
        // As a result, Qt::AA_DontUseNativeMenuBar is set. NB: the application
        // might still choose to not respect, or change, this flag.
        bool isPlugin = QApplication::testAttribute(Qt::AA_MacPluginApplication);
        bool environmentSaysNo = !qgetenv("QT_MAC_NO_NATIVE_MENUBAR").isEmpty();
        dontUseNativeMenuBar = isPlugin || environmentSaysNo;
        QApplication::instance()->setAttribute(Qt::AA_DontUseNativeMenuBar, dontUseNativeMenuBar);
        qt_mac_no_native_menubar = !q->isNativeMenuBar();
    }
    if (qt_mac_no_native_menubar == false) {
        // INVARIANT: Use native menubar.
        extern void qt_event_request_menubarupdate(); //qapplication_mac.cpp
        qt_event_request_menubarupdate();
        if (!parent && !fallback) {
            fallback = q;
            mac_menubar = new QMacMenuBarPrivate;
        } else if (parent && parent->isWindow()) {
            menubars()->insert(q->window(), q);
            mac_menubar = new QMacMenuBarPrivate;
        }
    }
}

void QMenuBarPrivate::macDestroyMenuBar()
{
    Q_Q(QMenuBar);
    QMacCocoaAutoReleasePool pool;
    if (fallback == q)
        fallback = 0;
    delete mac_menubar;
    QWidget *tlw = q->window();
    menubars()->remove(tlw);
    mac_menubar = 0;

    if (!qt_mac_current_menubar.qmenubar || qt_mac_current_menubar.qmenubar == q) {
#ifdef QT_MAC_USE_COCOA
        QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
        [loader removeActionsFromAppMenu];
#else
        cancelAllMenuTracking();
#endif
        extern void qt_event_request_menubarupdate(); //qapplication_mac.cpp
        qt_event_request_menubarupdate();
    }
}

OSMenuRef QMenuBarPrivate::macMenu()
{
    Q_Q(QMenuBar);
    if (!q->isNativeMenuBar() || !mac_menubar) {
        return 0;
    } else if (!mac_menubar->menu) {
        mac_menubar->menu = qt_mac_create_menu(q);
#ifdef QT_MAC_USE_COCOA
        [mac_menubar->menu setAutoenablesItems:NO];
#endif
        ProcessSerialNumber mine, front;
        if (GetCurrentProcess(&mine) == noErr && GetFrontProcess(&front) == noErr) {
            if (!qt_mac_no_menubar_merge && !mac_menubar->apple_menu) {
                mac_menubar->apple_menu = qt_mac_create_menu(q);
#ifndef QT_MAC_USE_COCOA
                MenuItemIndex index;
                AppendMenuItemTextWithCFString(mac_menubar->menu, 0, 0, 0, &index);

                SetMenuTitleWithCFString(mac_menubar->apple_menu, QCFString(QString(QChar(0x14))));
                SetMenuItemHierarchicalMenu(mac_menubar->menu, index, mac_menubar->apple_menu);
                SetMenuItemProperty(mac_menubar->apple_menu, 0, kMenuCreatorQt, kMenuPropertyQWidget, sizeof(q), &q);
#else
                [mac_menubar->apple_menu setTitle:qt_mac_QStringToNSString(QString(QChar(0x14)))];
                NSMenuItem *apple_menuItem = [[NSMenuItem alloc] init];
                [apple_menuItem setSubmenu:mac_menubar->menu];
                [mac_menubar->apple_menu addItem:apple_menuItem];
                [apple_menuItem release];
#endif
            }
            if (mac_menubar->apple_menu) {
#ifndef QT_MAC_USE_COCOA
                SetMenuItemProperty(mac_menubar->menu, 0, kMenuCreatorQt, kMenuPropertyMergeMenu,
                                    sizeof(mac_menubar->apple_menu), &mac_menubar->apple_menu);
#else
                QMenuPrivate::mergeMenuHash.insert(mac_menubar->menu, mac_menubar->apple_menu);
#endif
            }
            QList<QAction*> items = q->actions();
            for(int i = 0; i < items.count(); i++)
                mac_menubar->addAction(items[i]);
        }
    }
    return mac_menubar->menu;
}

OSMenuRef QMenuBar::macMenu() { return d_func()->macMenu(); }

/* !
    \internal
    Ancestor function that crosses windows (QWidget::isAncestorOf
    only considers widgets within the same window).
*/
static bool qt_mac_is_ancestor(QWidget* possibleAncestor, QWidget *child)
{
    if (!possibleAncestor)
        return false;

    QWidget * current = child->parentWidget();
    while (current != 0) {
        if (current == possibleAncestor)
            return true;
        current = current->parentWidget();
    }
    return false;
}

/* !
    \internal
    Returns true if the entries of menuBar should be disabled,
    based on the modality type of modalWidget.
*/
static bool qt_mac_should_disable_menu(QMenuBar *menuBar)
{
    QWidget *modalWidget = qApp->activeModalWidget();
    if (!modalWidget)
        return false;

    if (menuBar && menuBar == menubars()->value(modalWidget))
        // The menu bar is owned by the modal widget.
        // In that case we should enable it:
        return false;

    // When there is an application modal window on screen, the entries of
    // the menubar should be disabled. The exception in Qt is that if the
    // modal window is the only window on screen, then we enable the menu bar.
    QWidget *w = modalWidget;
    QWidgetList topLevelWidgets = QApplication::topLevelWidgets();
    while (w) {
        if (w->isVisible() && w->windowModality() == Qt::ApplicationModal) {
            for (int i=0; i<topLevelWidgets.size(); ++i) {
                QWidget *top = topLevelWidgets.at(i);
                if (w != top && top->isVisible()) {
                    // INVARIANT: we found another visible window
                    // on screen other than our modalWidget. We therefore
                    // disable the menu bar to follow normal modality logic:
                    return true;
                }
            }
            // INVARIANT: We have only one window on screen that happends
            // to be application modal. We choose to enable the menu bar
            // in that case to e.g. enable the quit menu item.
            return false;
        }
        w = w->parentWidget();
    }

    // INVARIANT: modalWidget is window modal. Disable menu entries
    // if the menu bar belongs to an ancestor of modalWidget. If menuBar
    // is nil, we understand it as the default menu bar set by the nib:
    return menuBar ? qt_mac_is_ancestor(menuBar->parentWidget(), modalWidget) : false;
}

static QWidget *findWindowThatShouldDisplayMenubar()
{
    QWidget *w = qApp->activeWindow();
    if (!w) {
        // We have no active window on screen. Try to
        // find a window from the list of top levels:
        QWidgetList tlws = QApplication::topLevelWidgets();
        for(int i = 0; i < tlws.size(); ++i) {
            QWidget *tlw = tlws.at(i);
            if ((tlw->isVisible() && tlw->windowType() != Qt::Tool &&
                tlw->windowType() != Qt::Popup)) {
                w = tlw;
                break;
            }
        }
    }
    return w;
}

static QMenuBar *findMenubarForWindow(QWidget *w)
{
    QMenuBar *mb = 0;
    if (w) {
        mb = menubars()->value(w);
#ifndef QT_NO_MAINWINDOW
        QDockWidget *dw = qobject_cast<QDockWidget *>(w);
        if (!mb && dw) {
            QMainWindow *mw = qobject_cast<QMainWindow *>(dw->parentWidget());
            if (mw && (mb = menubars()->value(mw)))
                w = mw;
        }
#endif
        while(w && !mb)
            mb = menubars()->value((w = w->parentWidget()));
    }

    if (!mb) {
        // We could not find a menu bar for the window. Lets
        // check if we have a global (parentless) menu bar instead:
        mb = fallback;
    }

    return mb;
}

void qt_mac_clear_menubar()
{
    if (QApplication::testAttribute(Qt::AA_MacPluginApplication))
        return;

#ifndef QT_MAC_USE_COCOA
    MenuRef clear_menu = 0;
    if (CreateNewMenu(0, 0, &clear_menu) == noErr) {
        SetRootMenu(clear_menu);
        ReleaseMenu(clear_menu);
    } else {
        qWarning("QMenu: Internal error at %s:%d", __FILE__, __LINE__);
    }
    ClearMenuBar();
    qt_mac_command_set_enabled(0, kHICommandPreferences, false);
    InvalMenuBar();
#else
    QMacCocoaAutoReleasePool pool;
    QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
    NSMenu *menu = [loader menu];
    [loader ensureAppMenuInMenu:menu];
    [NSApp setMainMenu:menu];
    const bool modal = qt_mac_should_disable_menu(0);
    if (qt_mac_current_menubar.qmenubar || modal != qt_mac_current_menubar.modal)
        qt_mac_set_modal_state(menu, modal);
    qt_mac_current_menubar.qmenubar = 0;
    qt_mac_current_menubar.modal = modal;
#endif
}

bool QMenuBar::macUpdateMenuBar()
{
#ifdef QT_MAC_USE_COCOA
    QMacCocoaAutoReleasePool pool;
    qt_cocoaPostMessage(getMenuLoader(), @selector(qtUpdateMenubar));
    return true;
#else
    return QMenuBarPrivate::macUpdateMenuBarImmediatly();
#endif
}

bool QMenuBarPrivate::macUpdateMenuBarImmediatly()
{
    bool ret = false;
    cancelAllMenuTracking();
    QWidget *w = findWindowThatShouldDisplayMenubar();
    QMenuBar *mb = findMenubarForWindow(w);
    extern bool qt_mac_app_fullscreen; //qapplication_mac.mm

    // We need to see if we are in full screen mode, if so we need to
    // switch the full screen mode to be able to show or hide the menubar.
    if(w && mb) {
        // This case means we are creating a menubar, check if full screen
        if(w->isFullScreen()) {
            // Ok, switch to showing the menubar when hovering over it.
            SetSystemUIMode(kUIModeAllHidden, kUIOptionAutoShowMenuBar);
            qt_mac_app_fullscreen = true;
        }
    } else if(w) {
        // Removing a menubar
        if(w->isFullScreen()) {
            // Ok, switch to not showing the menubar when hovering on it
            SetSystemUIMode(kUIModeAllHidden, 0);
            qt_mac_app_fullscreen = true;
        }
    }

    if (mb && mb->isNativeMenuBar()) {
        bool modal = QApplicationPrivate::modalState();
#ifdef QT_MAC_USE_COCOA
        QMacCocoaAutoReleasePool pool;
#endif
        if (OSMenuRef menu = mb->macMenu()) {
#ifndef QT_MAC_USE_COCOA
            SetRootMenu(menu);
#else
            QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
            [loader ensureAppMenuInMenu:menu];
            [NSApp setMainMenu:menu];
            syncMenuBarItemsVisiblity(mb->d_func()->mac_menubar);

            if (OSMenuRef tmpMerge = QMenuPrivate::mergeMenuHash.value(menu)) {
                if (QMenuMergeList *mergeList
                        = QMenuPrivate::mergeMenuItemsHash.value(tmpMerge)) {
                    const int mergeListSize = mergeList->size();

                    for (int i = 0; i < mergeListSize; ++i) {
                        const QMenuMergeItem &mergeItem = mergeList->at(i);
                        // Ideally we would call QMenuPrivate::syncAction, but that requires finding
                        // the original QMen and likely doing more work than we need.
                        // For example, enabled is handled below.
                        [mergeItem.menuItem setTag:reinterpret_cast<long>(
                                                    static_cast<QAction *>(mergeItem.action->action))];
                        [mergeItem.menuItem setHidden:!(mergeItem.action->action->isVisible())];
                    }
                }
            }
#endif
            // Check if menu is modally shaddowed and should  be disabled:
            modal = qt_mac_should_disable_menu(mb);
            if (mb != qt_mac_current_menubar.qmenubar || modal != qt_mac_current_menubar.modal)
                qt_mac_set_modal_state(menu, modal);
        }
        qt_mac_current_menubar.qmenubar = mb;
        qt_mac_current_menubar.modal = modal;
        ret = true;
    } else if (qt_mac_current_menubar.qmenubar && qt_mac_current_menubar.qmenubar->isNativeMenuBar()) {
        // INVARIANT: The currently active menu bar (if any) is not native. But we do have a
        // native menu bar from before. So we need to decide whether or not is should be enabled:
        const bool modal = qt_mac_should_disable_menu(qt_mac_current_menubar.qmenubar);
        if (modal != qt_mac_current_menubar.modal) {
            ret = true;
            if (OSMenuRef menu = qt_mac_current_menubar.qmenubar->macMenu()) {
#ifndef QT_MAC_USE_COCOA
                SetRootMenu(menu);
#else
                QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *loader = getMenuLoader();
                [loader ensureAppMenuInMenu:menu];
                [NSApp setMainMenu:menu];
                syncMenuBarItemsVisiblity(qt_mac_current_menubar.qmenubar->d_func()->mac_menubar);
#endif
                qt_mac_set_modal_state(menu, modal);
            }
            qt_mac_current_menubar.modal = modal;
        }
    }

    if (!ret) {
        qt_mac_clear_menubar();
    }
    return ret;
}

QHash<OSMenuRef, OSMenuRef> QMenuPrivate::mergeMenuHash;
QHash<OSMenuRef, QMenuMergeList*> QMenuPrivate::mergeMenuItemsHash;

bool QMenuPrivate::QMacMenuPrivate::merged(const QAction *action) const
{
#ifndef QT_MAC_USE_COCOA
    MenuRef merge = 0;
    GetMenuItemProperty(menu, 0, kMenuCreatorQt, kMenuPropertyMergeMenu,
            sizeof(merge), 0, &merge);
    if (merge) {
        QMenuMergeList *list = 0;
        if (GetMenuItemProperty(merge, 0, kMenuCreatorQt, kMenuPropertyMergeList,
                    sizeof(list), 0, &list) == noErr && list) {
            for(int i = 0; i < list->size(); ++i) {
                QMenuMergeItem item = list->at(i);
                if (item.action->action == action)
                    return true;
            }
        }
    }
#else
    if (OSMenuRef merge = mergeMenuHash.value(menu)) {
        if (QMenuMergeList *list = mergeMenuItemsHash.value(merge)) {
            for(int i = 0; i < list->size(); ++i) {
                const QMenuMergeItem &item = list->at(i);
                if (item.action->action == action)
                    return true;
            }
        }
    }
#endif
    return false;
}

//creation of the OSMenuRef
static OSMenuRef qt_mac_create_menu(QWidget *w)
{
    OSMenuRef ret;
#ifndef QT_MAC_USE_COCOA
    ret = 0;
    if (CreateNewMenu(0, 0, &ret) == noErr) {
        qt_mac_create_menu_event_handler();
        SetMenuItemProperty(ret, 0, kMenuCreatorQt, kMenuPropertyQWidget, sizeof(w), &w);

        // kEventMenuMatchKey is only sent to the menu itself and not to
        // the application, install a separate handler for that event.
        EventHandlerRef eventHandlerRef;
        InstallMenuEventHandler(ret, qt_mac_menu_event,
                                GetEventTypeCount(menu_menu_events),
                                menu_menu_events, 0, &eventHandlerRef);
        menu_eventHandlers_hash()->insert(ret, eventHandlerRef);
    } else {
        qWarning("QMenu: Internal error");
    }
#else
    if (QMenu *qmenu = qobject_cast<QMenu *>(w)){
        ret = [[QT_MANGLE_NAMESPACE(QCocoaMenu) alloc] initWithQMenu:qmenu];
    } else {
        ret = [[NSMenu alloc] init];
    }
#endif
    return ret;
}



QT_END_NAMESPACE