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diff --git a/src/gui/kernel/qcocoawindow_mac.mm b/src/gui/kernel/qcocoawindow_mac.mm
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+/****************************************************************************
+ **
+ ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+ **
+ ** This file is part of the QtGui module of the Qt Toolkit.
+ **
+ ** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+ **
+ ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ **
+ ****************************************************************************/
+
+#include "qmacdefines_mac.h"
+#ifdef QT_MAC_USE_COCOA
+#import <private/qcocoawindow_mac_p.h>
+#import <private/qcocoawindowdelegate_mac_p.h>
+#import <private/qcocoaview_mac_p.h>
+#import <private/qt_cocoa_helpers_mac_p.h>
+#import <private/qcocoawindowcustomthemeframe_mac_p.h>
+
+#include <QtGui/QWidget>
+
+QT_FORWARD_DECLARE_CLASS(QWidget);
+QT_USE_NAMESPACE
+
+extern Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum); // qcocoaview.mm
+
+@implementation NSWindow (QT_MANGLE_NAMESPACE(QWidgetIntegration))
+
+- (id)QT_MANGLE_NAMESPACE(qt_initWithQWidget):(QWidget*)widget contentRect:(NSRect)rect styleMask:(NSUInteger)mask;
+{
+    self = [self initWithContentRect:rect styleMask:mask backing:NSBackingStoreBuffered defer:YES];
+    if (self) {
+        [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] becomeDelegteForWindow:self widget:widget];
+        [self setReleasedWhenClosed:NO];
+    }
+    return self;
+}
+
+- (QWidget *)QT_MANGLE_NAMESPACE(qt_qwidget)
+{
+    QWidget *widget = 0;
+    if ([self delegate] == [QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate])
+        widget = [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] qt_qwidgetForWindow:self];
+    return widget;
+}
+
+@end
+
+@implementation QT_MANGLE_NAMESPACE(QCocoaWindow)
+
+- (BOOL)canBecomeKeyWindow
+{
+    return YES;
+}
+
+/*
+    The methods keyDown, keyUp, and flagsChanged... These really shouldn't ever
+    get hit. We automatically say we can be first responder if we are a window.
+    So, the handling should get handled by the view. This is here more as a
+    last resort (i.e., this is code that can potentially be removed).
+ */
+
+- (void)keyDown:(NSEvent *)theEvent
+{
+    bool keyOK = qt_dispatchKeyEvent(theEvent, [self QT_MANGLE_NAMESPACE(qt_qwidget)]);
+    if (!keyOK)
+        [super keyDown:theEvent];
+}
+
+- (void)keyUp:(NSEvent *)theEvent
+{
+    bool keyOK = qt_dispatchKeyEvent(theEvent, [self QT_MANGLE_NAMESPACE(qt_qwidget)]);
+    if (!keyOK)
+        [super keyUp:theEvent];
+}
+
+- (void)flagsChanged:(NSEvent *)theEvent
+{
+    qt_dispatchModifiersChanged(theEvent, [self QT_MANGLE_NAMESPACE(qt_qwidget)]);
+    [super flagsChanged:theEvent];
+}
+
+
+- (void)tabletProximity:(NSEvent *)tabletEvent
+{
+    qt_dispatchTabletProximityEvent(tabletEvent);
+}
+
+- (void)sendEvent:(NSEvent *)event
+{
+    [self retain];
+
+    QWidget *widget = [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] qt_qwidgetForWindow:self];
+    QCocoaView *view = static_cast<QCocoaView *>(qt_mac_nativeview_for(widget));
+    Qt::MouseButton mouseButton = cocoaButton2QtButton([event buttonNumber]);
+
+    // sometimes need to redirect mouse events to the popup.
+    QWidget *popup = qAppInstance()->activePopupWidget();
+    if (popup && popup != widget) {
+        switch([event type])
+        {
+        case NSLeftMouseDown:
+            qt_mac_handleMouseEvent(view, event, QEvent::MouseButtonPress, mouseButton);
+            // Don't call super here. This prevents us from getting the mouseUp event,
+            // which we need to send even if the mouseDown event was not accepted. 
+            // (this is standard Qt behavior.)
+            break;
+        case NSRightMouseDown:
+        case NSOtherMouseDown:
+            if (!qt_mac_handleMouseEvent(view, event, QEvent::MouseButtonPress, mouseButton))
+                [super sendEvent:event];
+            break;
+        case NSLeftMouseUp:
+        case NSRightMouseUp:
+        case NSOtherMouseUp:
+            if (!qt_mac_handleMouseEvent(view, event, QEvent::MouseButtonRelease, mouseButton))
+                [super sendEvent:event];
+            break;
+        case NSMouseMoved:
+            qt_mac_handleMouseEvent(view, event, QEvent::MouseMove, Qt::NoButton);
+            break;
+        case NSLeftMouseDragged:
+        case NSRightMouseDragged:
+        case NSOtherMouseDragged:
+            [QT_MANGLE_NAMESPACE(QCocoaView) currentMouseEvent]->view = view;
+            [QT_MANGLE_NAMESPACE(QCocoaView) currentMouseEvent]->theEvent = event;
+            if (!qt_mac_handleMouseEvent(view, event, QEvent::MouseMove, mouseButton))
+                [super sendEvent:event];
+            break;
+        default:
+            [super sendEvent:event];
+            break;
+        }
+    } else {
+        [super sendEvent:event];
+    }
+    qt_mac_dispatchNCMouseMessage(self, event, [self QT_MANGLE_NAMESPACE(qt_qwidget)], leftButtonIsRightButton);
+
+
+    [self release];
+}
+
++ (Class)frameViewClassForStyleMask:(NSUInteger)styleMask
+{
+    if (styleMask & QtMacCustomizeWindow)
+        return [QT_MANGLE_NAMESPACE(QCocoaWindowCustomThemeFrame) class];
+    return [super frameViewClassForStyleMask:styleMask];
+}
+
+@end
+
+#endif