Mac: Remove old unified toolbar implementation.

This has been dead code in Qt 5 since WS_MAC isn't
defined any more.

The new implementation is far less intrusive and does
not require a separate layout.

Task-number: QTBUG-34411
Change-Id: I91bf2294086cb7334a0f56eb1bb97464d8d7b2e3
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>

8 files changed, 5 insertions, 705 deletions

diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 08e8975f9d..df523e7e21 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -5026,16 +5026,6 @@ void QWidgetPrivate::drawWidget(QPaintDevice *pdev, const QRegion &rgn, const QP
     if (rgn.isEmpty())
         return;
 
-#ifdef Q_WS_MAC
-    if (qt_mac_clearDirtyOnWidgetInsideDrawWidget)
-        dirtyOnWidget = QRegion();
-
-    // We disable the rendering of QToolBar in the backingStore if
-    // it's supposed to be in the unified toolbar on Mac OS X.
-    if (backingStore && isInUnifiedToolbar)
-        return;
-#endif // Q_WS_MAC
-
     const bool asRoot = flags & DrawAsRoot;
     bool onScreen = paintOnScreen();
 
@@ -9403,26 +9393,13 @@ QWidget *QWidgetPrivate::childAt_helper(const QPoint &p, bool ignoreChildrenInDe
     if (children.isEmpty())
         return 0;
 
-#ifdef Q_WS_MAC
-    Q_Q(const QWidget);
-    // Unified tool bars on the Mac require special handling since they live outside
-    // QMainWindow's geometry(). See commit: 35667fd45ada49269a5987c235fdedfc43e92bb8
-    bool includeFrame = q->isWindow() && qobject_cast<const QMainWindow *>(q)
-                        && static_cast<const QMainWindow *>(q)->unifiedTitleAndToolBarOnMac();
-    if (includeFrame)
-        return childAtRecursiveHelper(p, ignoreChildrenInDestructor, includeFrame);
-#endif
-
     if (!pointInsideRectAndMask(p))
         return 0;
     return childAtRecursiveHelper(p, ignoreChildrenInDestructor);
 }
 
-QWidget *QWidgetPrivate::childAtRecursiveHelper(const QPoint &p, bool ignoreChildrenInDestructor, bool includeFrame) const
+QWidget *QWidgetPrivate::childAtRecursiveHelper(const QPoint &p, bool ignoreChildrenInDestructor) const
 {
-#ifndef Q_WS_MAC
-    Q_UNUSED(includeFrame);
-#endif
     for (int i = children.size() - 1; i >= 0; --i) {
         QWidget *child = qobject_cast<QWidget *>(children.at(i));
         if (!child || child->isWindow() || child->isHidden() || child->testAttribute(Qt::WA_TransparentForMouseEvents)
@@ -9432,14 +9409,6 @@ QWidget *QWidgetPrivate::childAtRecursiveHelper(const QPoint &p, bool ignoreChil
 
         // Map the point 'p' from parent coordinates to child coordinates.
         QPoint childPoint = p;
-#ifdef Q_WS_MAC
-        // 'includeFrame' is true if the child's parent is a top-level QMainWindow with an unified tool bar.
-        // An unified tool bar on the Mac lives outside QMainWindow's geometry(), so a normal
-        // QWidget::mapFromParent won't do the trick.
-        if (includeFrame && qobject_cast<QToolBar *>(child))
-            childPoint = qt_mac_nativeMapFromParent(child, p);
-        else
-#endif
         childPoint -= child->data->crect.topLeft();
 
         // Check if the point hits the child.
@@ -9614,13 +9583,7 @@ void QWidget::setParent(QWidget *parent, Qt::WindowFlags f)
     bool newParent = (parent != parentWidget()) || !wasCreated || desktopWidget;
 
     if (newParent && parent && !desktopWidget) {
-        if (testAttribute(Qt::WA_NativeWindow) && !qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings)
-#ifdef Q_WS_MAC
-            // On Mac, toolbars inside the unified title bar will never overlap with
-            // siblings in the content view. So we skip enforce native siblings in that case
-            && !d->isInUnifiedToolbar && parentWidget() && parentWidget()->isWindow()
-#endif // Q_WS_MAC
-        )
+        if (testAttribute(Qt::WA_NativeWindow) && !qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings))
             parent->d_func()->enforceNativeChildren();
         else if (parent->d_func()->nativeChildrenForced() || parent->testAttribute(Qt::WA_PaintOnScreen))
             setAttribute(Qt::WA_NativeWindow);
@@ -9879,12 +9842,6 @@ void QWidget::repaint(const QRect &rect)
         return;
 
     if (hasBackingStoreSupport()) {
-#ifdef Q_WS_MAC
-        if (qt_widget_private(this)->isInUnifiedToolbar) {
-            qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
-            return;
-        }
-#endif // Q_WS_MAC
         QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
         if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore) {
             tlwExtra->inRepaint = true;
@@ -9914,12 +9871,6 @@ void QWidget::repaint(const QRegion &rgn)
         return;
 
     if (hasBackingStoreSupport()) {
-#ifdef Q_WS_MAC
-        if (qt_widget_private(this)->isInUnifiedToolbar) {
-            qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
-            return;
-        }
-#endif // Q_WS_MAC
         QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
         if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore) {
             tlwExtra->inRepaint = true;
@@ -9982,12 +9933,6 @@ void QWidget::update(const QRect &rect)
     }
 
     if (hasBackingStoreSupport()) {
-#ifdef Q_WS_MAC
-        if (qt_widget_private(this)->isInUnifiedToolbar) {
-            qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
-            return;
-        }
-#endif // Q_WS_MAC
         QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
         if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore)
             tlwExtra->backingStoreTracker->markDirty(r, this);
@@ -10017,12 +9962,6 @@ void QWidget::update(const QRegion &rgn)
     }
 
     if (hasBackingStoreSupport()) {
-#ifdef Q_WS_MAC
-        if (qt_widget_private(this)->isInUnifiedToolbar) {
-            qt_widget_private(this)->unifiedSurface->renderToolbar(this, true);
-            return;
-        }
-#endif // Q_WS_MAC
         QTLWExtra *tlwExtra = window()->d_func()->maybeTopData();
         if (tlwExtra && !tlwExtra->inTopLevelResize && tlwExtra->backingStore)
             tlwExtra->backingStoreTracker->markDirty(r, this);
@@ -10218,13 +10157,7 @@ void QWidget::setAttribute(Qt::WidgetAttribute attribute, bool on)
             qApp->inputMethod()->commit();
             qApp->inputMethod()->update(Qt::ImEnabled);
         }
-        if (!qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings) && parentWidget()
-#ifdef Q_WS_MAC
-            // On Mac, toolbars inside the unified title bar will never overlap with
-            // siblings in the content view. So we skip enforce native siblings in that case
-            && !d->isInUnifiedToolbar && parentWidget()->isWindow()
-#endif // Q_WS_MAC
-        )
+        if (!qApp->testAttribute(Qt::AA_DontCreateNativeWidgetSiblings) && parentWidget())
             parentWidget()->d_func()->enforceNativeChildren();
         if (on && !internalWinId() && testAttribute(Qt::WA_WState_Created))
             d->createWinId();
@@ -11544,28 +11477,6 @@ void QWidget::clearMask()
     setMask(QRegion());
 }
 
-#ifdef Q_WS_MAC
-void QWidgetPrivate::syncUnifiedMode() {
-    // The whole purpose of this method is to keep the unifiedToolbar in sync.
-    // That means making sure we either exchange the drawing methods or we let
-    // the toolbar know that it does not require to draw the baseline.
-    Q_Q(QWidget);
-    // This function makes sense only if this is a top level
-    if(!q->isWindow())
-        return;
-    OSWindowRef window = qt_mac_window_for(q);
-    if(changeMethods) {
-        // Ok, we are in documentMode.
-        if(originalDrawMethod)
-            qt_mac_replaceDrawRect(window, this);
-    } else {
-        if(!originalDrawMethod)
-            qt_mac_replaceDrawRectOriginal(window, this);
-    }
-}
-
-#endif // Q_WS_MAC
-
 QT_END_NAMESPACE
 
 #include "moc_qwidget.cpp"
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index df40908c00..943b7057b5 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -495,7 +495,7 @@ public:
     void setConstraints_sys();
     bool pointInsideRectAndMask(const QPoint &) const;
     QWidget *childAt_helper(const QPoint &, bool) const;
-    QWidget *childAtRecursiveHelper(const QPoint &p, bool, bool includeFrame = false) const;
+    QWidget *childAtRecursiveHelper(const QPoint &p, bool) const;
     void updateGeometry_helper(bool forceUpdate);
 
     void getLayoutItemMargins(int *left, int *top, int *right, int *bottom) const;
@@ -780,7 +780,6 @@ public:
     void finishCreateWindow_sys_Cocoa(void * /*NSWindow * */ windowRef);
     void syncCocoaMask();
     void finishCocoaMaskSetup();
-    void syncUnifiedMode();
     // Did we add the drawRectOriginal method?
     bool drawRectOriginalAdded;
     // Is the original drawRect method available?
diff --git a/src/widgets/widgets/qcocoatoolbardelegate_mac.mm b/src/widgets/widgets/qcocoatoolbardelegate_mac.mm
deleted file mode 100644
index 2ea66b0d40..0000000000
--- a/src/widgets/widgets/qcocoatoolbardelegate_mac.mm
+++ /dev/null
@@ -1,151 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the QtWidgets module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights.  These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#import <private/qcocoatoolbardelegate_mac_p.h>
-#include <private/qmainwindowlayout_p.h>
-#include <private/qt_mac_p.h>
-#include <private/qt_cocoa_helpers_mac_p.h>
-#include <private/qcocoaview_mac_p.h>
-#include <private/qwidget_p.h>
-#include <qtoolbar.h>
-#include <qlayout.h>
-#include <qdebug.h>
-
-QT_BEGIN_NAMESPACE
-extern QWidgetPrivate *qt_widget_private(QWidget *widget);
-QT_END_NAMESPACE
-
-QT_FORWARD_DECLARE_CLASS(QMainWindowLayout);
-QT_FORWARD_DECLARE_CLASS(QToolBar);
-QT_FORWARD_DECLARE_CLASS(QCFString);
-
-@implementation QT_MANGLE_NAMESPACE(QCocoaToolBarDelegate)
-
-- (id)initWithMainWindowLayout:(QMainWindowLayout *)layout
-{
-    self = [super init];
-    if (self) {
-        mainWindowLayout = layout;
-    }
-    return self;
-}
-
-- (NSArray *)toolbarAllowedItemIdentifiers:(NSToolbar *)toolbar
-{
-    Q_UNUSED(toolbar);
-    return [NSArray arrayWithObject:@"org.qt-project.qt.nstoolbar-qtoolbar"];
-}
-
-- (NSArray *)toolbarDefaultItemIdentifiers:(NSToolbar *)toolbar
-{
-    return [self toolbarAllowedItemIdentifiers:toolbar];
-}
-
-- (void)toolbarDidRemoveItem:(NSNotification *)notification
-{
-    NSToolbarItem *item = [[notification userInfo] valueForKey:@"item"];
-    mainWindowLayout->unifiedToolbarHash.remove(item);
-    for (int i = 0; i < mainWindowLayout->toolbarItemsCopy.size(); ++i) {
-        if (mainWindowLayout->toolbarItemsCopy.at(i) == item) {
-            // I know about it, so release it.
-            mainWindowLayout->toolbarItemsCopy.removeAt(i);
-            mainWindowLayout->qtoolbarsInUnifiedToolbarList.removeAt(i);
-            [item release];
-            break;
-        }
-    }
-}
-
-- (NSToolbarItem *)toolbar:(NSToolbar *)nstoolbar itemForItemIdentifier:(NSString *)itemIdentifier
-    willBeInsertedIntoToolbar:(BOOL)flag
-{
-    Q_UNUSED(flag);
-    Q_UNUSED(nstoolbar);
-    QToolBar *tb = mainWindowLayout->cocoaItemIDToToolbarHash.value(
-            QT_PREPEND_NAMESPACE(qt_mac_NSStringToQString)(itemIdentifier));
-    NSToolbarItem *item = nil;
-    if (tb) {
-        item = [[NSToolbarItem alloc] initWithItemIdentifier:itemIdentifier];
-        mainWindowLayout->unifiedToolbarHash.insert(item, tb);
-    }
-    return item;
-}
-
-- (void)toolbarWillAddItem:(NSNotification *)notification
-{
-    NSToolbarItem *item = [[notification userInfo] valueForKey:@"item"];
-    QToolBar *tb = mainWindowLayout->cocoaItemIDToToolbarHash.value(
-            QT_PREPEND_NAMESPACE(qt_mac_NSStringToQString)([item itemIdentifier]));
-    if (!tb)
-        return; // I can't really do anything about this.
-    [item retain];
-    [item setView:QT_PREPEND_NAMESPACE(qt_mac_nativeview_for)(tb)];
-
-    NSArray *items = [[qt_mac_window_for(mainWindowLayout->layoutState.mainWindow->window()) toolbar] items];
-    int someIndex = 0;
-    for (NSToolbarItem *i in items) {
-        if (i == item)
-            break;
-        ++someIndex;
-    }
-    mainWindowLayout->toolbarItemsCopy.insert(someIndex, item);
-
-    // This is synchronization code that was needed in Carbon, but may not be needed anymore here.
-    QToolBar *toolbar = mainWindowLayout->unifiedToolbarHash.value(item);
-    if (toolbar) {
-        int toolbarIndex = mainWindowLayout->qtoolbarsInUnifiedToolbarList.indexOf(toolbar);
-        if (someIndex != toolbarIndex) {
-            // Dang, we must be out of sync, rebuild it from the "toolbarItemsCopy"
-            mainWindowLayout->qtoolbarsInUnifiedToolbarList.clear();
-            for (int i = 0; i < mainWindowLayout->toolbarItemsCopy.size(); ++i) {
-                // This will either append the correct toolbar or an
-                // null toolbar. This is fine because this list
-                // is really only kept to make sure that things are but in the right order.
-                mainWindowLayout->qtoolbarsInUnifiedToolbarList.append(
-                                  mainWindowLayout->unifiedToolbarHash.value(mainWindowLayout->
-                                                                        toolbarItemsCopy.at(i)));
-            }
-        }
-        toolbar->update();
-    }
-}
-
-@end
diff --git a/src/widgets/widgets/qcocoatoolbardelegate_mac_p.h b/src/widgets/widgets/qcocoatoolbardelegate_mac_p.h
deleted file mode 100644
index f74f608660..0000000000
--- a/src/widgets/widgets/qcocoatoolbardelegate_mac_p.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the QtWidgets module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights.  These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qmacdefines_mac.h"
-#import <Cocoa/Cocoa.h>
-
-QT_BEGIN_NAMESPACE
-class QMainWindowLayout;
-class QToolBar;
-QT_END_NAMESPACE
-
-@class NSToolbarItem;
-
-@interface QT_MANGLE_NAMESPACE(QCocoaToolBarDelegate) : NSObject {
-    QT_PREPEND_NAMESPACE(QMainWindowLayout) *mainWindowLayout;
-    NSToolbarItem *toolbarItem;
-}
-
-- (id)initWithMainWindowLayout:(QT_PREPEND_NAMESPACE(QMainWindowLayout) *)layout;
-@end
diff --git a/src/widgets/widgets/qmainwindowlayout_mac.mm b/src/widgets/widgets/qmainwindowlayout_mac.mm
deleted file mode 100644
index 38605c2e09..0000000000
--- a/src/widgets/widgets/qmainwindowlayout_mac.mm
+++ /dev/null
@@ -1,292 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the QtWidgets module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights.  These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <private/qmainwindowlayout_p.h>
-#include <qtoolbar.h>
-#include <private/qtoolbarlayout_p.h>
-#include <private/qt_cocoa_helpers_mac_p.h>
-#include <private/qtoolbar_p.h>
-
-#include <private/qcocoatoolbardelegate_mac_p.h>
-#import  <private/qcocoawindowdelegate_mac_p.h>
-
-QT_BEGIN_NAMESPACE
-#ifdef QT_NAMESPACE
-
-// namespace up the stuff
-#define SS(x) #x
-#define S0(x) SS(x)
-#define S "org.qt-project.qt-" S0(QT_NAMESPACE) ".qmainwindow.qtoolbarInHIToolbar"
-#define SToolbar "org.qt-project.qt-" S0(QT_NAMESPACE) ".hitoolbar-qtoolbar"
-#define SNSToolbar "org.qt-project.qt-" S0(QT_NAMESPACE) ".qtoolbarInNSToolbar"
-#define MacToolbar "org.qt-project.qt-" S0(QT_NAMESPACE) ".qmainwindow.mactoolbar"
-
-static NSString *kQToolBarNSToolbarIdentifier = @SNSToolbar;
-static CFStringRef kQMainWindowMacToolbarID = CFSTR(MacToolbar);
-#undef SS
-#undef S0
-#undef S
-#undef SToolbar
-#undef SNSToolbar
-#undef MacToolbar
-
-#else
-static NSString *kQToolBarNSToolbarIdentifier = @"org.qt-project.qt.qmainwindow.qtoolbarInNSToolbar";
-static CFStringRef kQMainWindowMacToolbarID = CFSTR("org.qt-project.qt.qmainwindow.mactoolbar");
-#endif // QT_NAMESPACE
-
-
-#ifndef kWindowUnifiedTitleAndToolbarAttribute
-#define kWindowUnifiedTitleAndToolbarAttribute (1 << 7)
-#endif
-
-void QMainWindowLayout::updateHIToolBarStatus()
-{
-    bool useMacToolbar = layoutState.mainWindow->unifiedTitleAndToolBarOnMac();
-
-    layoutState.mainWindow->setUpdatesEnabled(false);  // reduces a little bit of flicker, not all though
-    QMacCocoaAutoReleasePool pool;
-    NSView *cView = [qt_mac_window_for(layoutState.mainWindow) contentView];
-    if (useMacToolbar) {
-        [cView setPostsFrameChangedNotifications:YES];
-        [[NSNotificationCenter defaultCenter] addObserver: [QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate]
-                                                 selector: @selector(syncContentViewFrame:)
-                                                     name: NSViewFrameDidChangeNotification
-                                                   object: cView];
-    }
-    if (!useMacToolbar) {
-        macWindowToolbarShow(layoutState.mainWindow, false);
-        // Move everything out of the HIToolbar into the main toolbar.
-        while (!qtoolbarsInUnifiedToolbarList.isEmpty()) {
-            // Should shrink the list by one every time.
-            QToolBar *toolbar = qtoolbarsInUnifiedToolbarList.first();
-            unifiedSurface->removeToolbar(toolbar);
-            layoutState.mainWindow->addToolBar(Qt::TopToolBarArea, toolbar);
-        }
-        macWindowToolbarSet(qt_mac_window_for(layoutState.mainWindow), 0);
-    } else {
-        QList<QToolBar *> toolbars = layoutState.mainWindow->findChildren<QToolBar *>();
-        for (int i = 0; i < toolbars.size(); ++i) {
-            QToolBar *toolbar = toolbars.at(i);
-            if (toolBarArea(toolbar) == Qt::TopToolBarArea) {
-                // Do this here, because we are in an in-between state.
-                removeWidget(toolbar);
-                layoutState.mainWindow->addToolBar(Qt::TopToolBarArea, toolbar);
-            }
-        }
-        syncUnifiedToolbarVisibility();
-    }
-    if (!useMacToolbar) {
-        [cView setPostsFrameChangedNotifications:NO];
-        [[NSNotificationCenter defaultCenter] removeObserver: [QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate]
-                                                        name: NSViewFrameDidChangeNotification
-                                                      object: cView];
-    }
-    layoutState.mainWindow->setUpdatesEnabled(true);
-}
-
-void QMainWindowLayout::insertIntoMacToolbar(QToolBar *before, QToolBar *toolbar)
-{
-    // This layering could go on to one more level, but I decided to stop here.
-    // The HIToolbar and NSToolbar APIs are fairly similar as you will see.
-    if (toolbar == 0)
-        return;
-
-    // toolbar will now become native (if not already) since we need
-    // an nsview for it inside the corresponding NSToolbarItem.
-    // Setting isInUnifiedToolbar will (among other things) stop alien
-    // siblings from becoming native when this happends since the toolbar
-    // will not overlap with other children of the QMainWindow. NB: Switching
-    // unified toolbar off after this stage is not supported, as this means
-    // that either the menubar must be alien again, or the sibling must
-    // be backed by an nsview to protect from overlapping issues:
-    toolbar->d_func()->isInUnifiedToolbar = true;
-
-    QToolBarLayout *toolbarLayout = static_cast<QToolBarLayout *>(toolbar->layout());
-    toolbarSaveState.insert(toolbar, ToolBarSaveState(toolbar->isMovable(), toolbar->maximumSize()));
-
-    if (toolbarLayout->hasExpandFlag() == false)
-        toolbar->setMaximumSize(toolbar->sizeHint());
-
-    toolbar->setMovable(false);
-    toolbarLayout->setUsePopupMenu(true);
-    // Make the toolbar a child of the mainwindow to avoid creating a window.
-    toolbar->setParent(layoutState.mainWindow);
-
-    toolbar->winId();  // Now create the OSViewRef.
-    layoutState.mainWindow->createWinId();
-
-    OSWindowRef window = qt_mac_window_for(layoutState.mainWindow);
-    int beforeIndex = qtoolbarsInUnifiedToolbarList.indexOf(before);
-    if (beforeIndex == -1)
-        beforeIndex = qtoolbarsInUnifiedToolbarList.size();
-
-    int toolbarIndex = qtoolbarsInUnifiedToolbarList.indexOf(toolbar);
-
-    QMacCocoaAutoReleasePool pool;
-    NSToolbar *macToolbar = [window toolbar];
-    if (macToolbar == nil) {
-        macToolbar = [[NSToolbar alloc] initWithIdentifier:(NSString *)kQMainWindowMacToolbarID];
-        [macToolbar setDisplayMode:NSToolbarDisplayModeIconOnly];
-        [macToolbar setSizeMode:NSToolbarSizeModeRegular];
-        [macToolbar setDelegate:[[QT_MANGLE_NAMESPACE(QCocoaToolBarDelegate) alloc] initWithMainWindowLayout:this]];
-        [window setToolbar:macToolbar];
-        [macToolbar release];
-    }
-    if (toolbarIndex != -1) {
-        qtoolbarsInUnifiedToolbarList.removeAt(toolbarIndex);
-        [macToolbar removeItemAtIndex:toolbarIndex];
-    }
-    qtoolbarsInUnifiedToolbarList.insert(beforeIndex, toolbar);
-
-    // Adding to the unified toolbar surface for the raster engine.
-    if (layoutState.mainWindow->windowSurface()) {
-        QPoint offset(0, 0);
-        for (int i = 0; i < beforeIndex; ++i) {
-            offset.setX(offset.x() + qtoolbarsInUnifiedToolbarList.at(i)->size().width());
-        }
-        unifiedSurface->insertToolbar(toolbar, offset);
-    }
-
-    NSString *toolbarID = kQToolBarNSToolbarIdentifier;
-    toolbarID = [toolbarID stringByAppendingFormat:@"%p", toolbar];
-    cocoaItemIDToToolbarHash.insert(qt_mac_NSStringToQString(toolbarID), toolbar);
-    [macToolbar insertItemWithItemIdentifier:toolbarID atIndex:beforeIndex];
-}
-
-void QMainWindowLayout::updateUnifiedToolbarOffset()
-{
-    QPoint offset(0, 0);
-
-    for (int i = 1; i < qtoolbarsInUnifiedToolbarList.length(); ++i) {
-        offset.setX(offset.x() + qtoolbarsInUnifiedToolbarList.at(i - 1)->size().width());
-        qtoolbarsInUnifiedToolbarList.at(i)->d_func()->toolbar_offset = offset;
-    }
-}
-
-
-void QMainWindowLayout::removeFromMacToolbar(QToolBar *toolbar)
-{
-    QHash<void *, QToolBar *>::iterator it = unifiedToolbarHash.begin();
-    while (it != unifiedToolbarHash.end()) {
-        if (it.value() == toolbar) {
-            // Rescue our HIView and set it on the mainWindow again.
-            bool saveVisible = !toolbar->isHidden();
-            toolbar->setParent(0);
-            toolbar->setParent(parentWidget());
-            toolbar->setVisible(saveVisible);
-            ToolBarSaveState saveState = toolbarSaveState.value(toolbar);
-            static_cast<QToolBarLayout *>(toolbar->layout())->setUsePopupMenu(false);
-            toolbar->setMovable(saveState.movable);
-            toolbar->setMaximumSize(saveState.maximumSize);
-            toolbarSaveState.remove(toolbar);
-            NSToolbarItem *item = static_cast<NSToolbarItem *>(it.key());
-            [[qt_mac_window_for(layoutState.mainWindow->window()) toolbar]
-                removeItemAtIndex:toolbarItemsCopy.indexOf(item)];
-             unifiedToolbarHash.remove(item);
-             qtoolbarsInUnifiedToolbarList.removeAll(toolbar);
-            break;
-        }
-        ++it;
-    }
-}
-
-void QMainWindowLayout::cleanUpMacToolbarItems()
-{
-    QMacCocoaAutoReleasePool pool;
-    for (int i = 0; i < toolbarItemsCopy.size(); ++i) {
-        NSToolbarItem *item = static_cast<NSToolbarItem *>(toolbarItemsCopy.at(i));
-        [item setView:0];
-        CFRelease(toolbarItemsCopy.at(i));
-    }
-    toolbarItemsCopy.clear();
-    unifiedToolbarHash.clear();
-
-    OSWindowRef window = qt_mac_window_for(layoutState.mainWindow);
-    NSToolbar *macToolbar = [window toolbar];
-    if (macToolbar) {
-      [[macToolbar delegate] release];
-      [macToolbar setDelegate:nil];
-    }
-}
-
-void QMainWindowLayout::fixSizeInUnifiedToolbar(QToolBar *tb) const
-{
-    QHash<void *, QToolBar *>::const_iterator it = unifiedToolbarHash.constBegin();
-    NSToolbarItem *item = nil;
-    while (it != unifiedToolbarHash.constEnd()) {
-        if (tb == it.value()) {
-            item = static_cast<NSToolbarItem *>(it.key());
-            break;
-        }
-        ++it;
-    }
-    if (item) {
-        QMacCocoaAutoReleasePool pool;
-        QWidgetItem layoutItem(tb);
-        QSize size = layoutItem.maximumSize();
-        NSSize nssize = NSMakeSize(size.width(), size.height());
-        [item setMaxSize:nssize];
-        size = layoutItem.minimumSize();
-        nssize.width = size.width();
-        nssize.height = size.height();
-        [item setMinSize:nssize];
-    }
-}
-
-void QMainWindowLayout::syncUnifiedToolbarVisibility()
-{
-    if (blockVisiblityCheck)
-        return;
-
-    Q_ASSERT(layoutState.mainWindow->unifiedTitleAndToolBarOnMac());
-    bool show = false;
-    const int ToolBarCount = qtoolbarsInUnifiedToolbarList.count();
-    for (int i = 0; i < ToolBarCount; ++i) {
-        if (qtoolbarsInUnifiedToolbarList.at(i)->isVisible()) {
-            show = true;
-            break;
-        }
-    }
-    macWindowToolbarShow(layoutState.mainWindow, show);
-}
-
-QT_END_NAMESPACE
diff --git a/src/widgets/widgets/qtoolbar.cpp b/src/widgets/widgets/qtoolbar.cpp
index 096f53de40..5e7eb943ab 100644
--- a/src/widgets/widgets/qtoolbar.cpp
+++ b/src/widgets/widgets/qtoolbar.cpp
@@ -57,11 +57,6 @@
 #include <qwidgetaction.h>
 #include <qtimer.h>
 #include <private/qwidgetaction_p.h>
-#ifdef Q_WS_MAC
-#include <private/qt_mac_p.h>
-#include <private/qt_cocoa_helpers_mac_p.h>
-#endif
-
 #include <private/qmainwindowlayout_p.h>
 
 #include "qtoolbar_p.h"
@@ -74,14 +69,6 @@
 
 QT_BEGIN_NAMESPACE
 
-#ifdef Q_WS_MAC
-static void qt_mac_updateToolBarButtonHint(QWidget *parentWidget)
-{
-    if (!(parentWidget->windowFlags() & Qt::CustomizeWindowHint))
-        parentWidget->setWindowFlags(parentWidget->windowFlags() | Qt::MacWindowToolBarButtonHint);
-}
-#endif
-
 // qmainwindow.cpp
 extern QMainWindowLayout *qt_mainwindow_layout(const QMainWindow *window);
 
@@ -104,17 +91,6 @@ void QToolBarPrivate::init()
     layout = new QToolBarLayout(q);
     layout->updateMarginAndSpacing();
 
-#ifdef Q_WS_MAC
-    if (q->parentWidget() && q->parentWidget()->isWindow()) {
-        // Make sure that the window has the "toolbar" button.
-        QWidget *parentWidget = q->parentWidget();
-        qt_mac_updateToolBarButtonHint(parentWidget);
-        reinterpret_cast<QToolBar *>(parentWidget)->d_func()->createWinId(); // Please let me create your winId...
-        extern OSWindowRef qt_mac_window_for(const QWidget *); // qwidget_mac.cpp
-        macWindowToolbarShow(q->parentWidget(), true);
-    }
-#endif
-
     toggleViewAction = new QAction(q);
     toggleViewAction->setCheckable(true);
     q->setMovable(q->style()->styleHint(QStyle::SH_ToolBar_Movable, 0, q ));
@@ -158,12 +134,8 @@ void QToolBarPrivate::updateWindowFlags(bool floating, bool unplug)
 
     flags |= Qt::FramelessWindowHint;
 
-    if (unplug) {
+    if (unplug)
         flags |= Qt::X11BypassWindowManagerHint;
-#ifdef Q_WS_MAC
-        flags |= Qt::WindowStaysOnTopHint;
-#endif
-    }
 
     q->setWindowFlags(flags);
 }
@@ -569,16 +541,6 @@ QToolBar::QToolBar(const QString &title, QWidget *parent)
 */
 QToolBar::~QToolBar()
 {
-    // Remove the toolbar button if there is nothing left.
-    QMainWindow *mainwindow = qobject_cast<QMainWindow *>(parentWidget());
-    if (mainwindow) {
-#ifdef Q_WS_MAC
-        QMainWindowLayout *mainwin_layout = qt_mainwindow_layout(mainwindow);
-        if (mainwin_layout && mainwin_layout->layoutState.toolBarAreaLayout.isEmpty()
-                && mainwindow->testAttribute(Qt::WA_WState_Created))
-            macWindowToolbarShow(mainwindow, false);
-#endif
-    }
 }
 
 /*! \property QToolBar::movable
@@ -665,12 +627,6 @@ void QToolBar::setAllowedAreas(Qt::ToolBarAreas areas)
 Qt::ToolBarAreas QToolBar::allowedAreas() const
 {
     Q_D(const QToolBar);
-#ifdef Q_WS_MAC
-    if (QMainWindow *window = qobject_cast<QMainWindow *>(parentWidget())) {
-        if (window->unifiedTitleAndToolBarOnMac()) // Don't allow drags to the top (for now).
-            return (d->allowedAreas & ~Qt::TopToolBarArea);
-    }
-#endif
     return d->allowedAreas;
 }
 
@@ -1083,15 +1039,6 @@ static bool waitForPopup(QToolBar *tb, QWidget *popup)
     return false;
 }
 
-#if defined(Q_WS_MAC)
-static bool toolbarInUnifiedToolBar(QToolBar *toolbar)
-{
-    const QMainWindow *mainWindow = qobject_cast<const QMainWindow *>(toolbar->parentWidget());
-    return mainWindow && mainWindow->unifiedTitleAndToolBarOnMac()
-            && mainWindow->toolBarArea(toolbar) == Qt::TopToolBarArea;
-}
-#endif
-
 /*! \reimp */
 bool QToolBar::event(QEvent *event)
 {
@@ -1115,22 +1062,9 @@ bool QToolBar::event(QEvent *event)
     case QEvent::Show:
         d->toggleViewAction->setChecked(event->type() == QEvent::Show);
         emit visibilityChanged(event->type() == QEvent::Show);
-#if defined(Q_WS_MAC)
-        if (toolbarInUnifiedToolBar(this)) {
-             // I can static_cast because I did the qobject_cast in the if above, therefore
-            // we must have a QMainWindowLayout here.
-            QMainWindowLayout *mwLayout = qt_mainwindow_layout(qobject_cast<QMainWindow *>(parentWidget()));
-            mwLayout->fixSizeInUnifiedToolbar(this);
-            mwLayout->syncUnifiedToolbarVisibility();
-        }
-#endif // Q_WS_MAC
         break;
     case QEvent::ParentChange:
         d->layout->checkUsePopupMenu();
-#if defined(Q_WS_MAC)
-        if (parentWidget() && parentWidget()->isWindow())
-            qt_mac_updateToolBarButtonHint(parentWidget());
-#endif
         break;
 
     case QEvent::MouseButtonPress: {
diff --git a/src/widgets/widgets/qtoolbarlayout.cpp b/src/widgets/widgets/qtoolbarlayout.cpp
index 3c0c84ee2f..fe919feba9 100644
--- a/src/widgets/widgets/qtoolbarlayout.cpp
+++ b/src/widgets/widgets/qtoolbarlayout.cpp
@@ -333,20 +333,6 @@ void QToolBarLayout::updateGeomArray() const
     rpick(o, that->hint) += handleExtent;
     that->hint += QSize(2*margin, 2*margin);
     that->dirty = false;
-#ifdef Q_WS_MAC
-    if (QMainWindow *mw = qobject_cast<QMainWindow *>(parentWidget()->parentWidget())) {
-        if (mw->unifiedTitleAndToolBarOnMac()
-                && mw->toolBarArea(static_cast<QToolBar *>(parentWidget())) == Qt::TopToolBarArea) {
-            if (expandFlag) {
-                tb->setMaximumSize(0xFFFFFF, 0xFFFFFF);
-            } else {
-               tb->setMaximumSize(hint);
-            }
-        }
-    }
-#endif
-
-    that->dirty = false;
 }
 
 static bool defaultWidgetAction(QToolBarItem *item)
@@ -401,15 +387,6 @@ void QToolBarLayout::setGeometry(const QRect &rect)
         if (!extension->isHidden())
             extension->hide();
     }
-#ifdef Q_WS_MAC
-    if (QMainWindow *win = qobject_cast<QMainWindow*>(tb->parentWidget())) {
-        Qt::ToolBarArea area = win->toolBarArea(tb);
-        if (win->unifiedTitleAndToolBarOnMac() && area == Qt::TopToolBarArea) {
-            qt_mainwindow_layout(win)->fixSizeInUnifiedToolbar(tb);
-        }
-    }
-#endif
-
 }
 
 bool QToolBarLayout::layoutActions(const QSize &size)
diff --git a/src/widgets/widgets/widgets.pri b/src/widgets/widgets/widgets.pri
index efe1dd3616..1bae87ebcc 100644
--- a/src/widgets/widgets/widgets.pri
+++ b/src/widgets/widgets/widgets.pri
@@ -155,15 +155,6 @@ macx {
         widgets/qmaccocoaviewcontainer_mac.mm
 }
 
-# TODO
-false:mac {
-    OBJECTIVE_HEADERS += widgets/qcocoatoolbardelegate_mac_p.h \
-                         widgets/qcocoamenu_mac_p.h
-    OBJECTIVE_SOURCES += widgets/qcocoatoolbardelegate_mac.mm \
-                         widgets/qmainwindowlayout_mac.mm
-
-}
-
 wince*: {
     SOURCES += widgets/qmenu_wince.cpp
     HEADERS += widgets/qmenu_wince_resource_p.h