Changeset 846 for trunk/src/gui/kernel/qcocoaview_mac.mm

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/kernel/qcocoaview_mac.mm (modified) (55 diffs)

trunk/src/gui/kernel/qcocoaview_mac.mm

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -82 +82 @@
 extern bool qt_sendSpontaneousEvent(QObject *, QEvent *); // qapplication.cpp
 extern OSViewRef qt_mac_nativeview_for(const QWidget *w); // qwidget_mac.mm
-extern const QStringList& qEnabledDraggedTypes(); // qmime_mac.cpp
 extern QPointer<QWidget> qt_mouseover; //qapplication_mac.mm
 extern QPointer<QWidget> qt_button_down; //qapplication_mac.cpp
-
-Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum)
-{
-    if (buttonNum == 0)
-        return Qt::LeftButton;
-    if (buttonNum == 1)
-        return Qt::RightButton;
-    if (buttonNum == 2)
-        return Qt::MidButton;
-    if (buttonNum == 3)
-        return Qt::XButton1;
-    if (buttonNum == 4)
-        return Qt::XButton2;
-    return Qt::NoButton;
-}
+extern Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum);
 
 struct dndenum_mapper
@@ -201 +186 @@
 }
 
+#ifdef ALIEN_DEBUG
+static int qCocoaViewCount = 0;
+#endif
 
 @implementation QT_MANGLE_NAMESPACE(QCocoaView)
@@ -210 +198 @@
         [self finishInitWithQWidget:widget widgetPrivate:widgetprivate];
     }
+    [self setFocusRingType:NSFocusRingTypeNone];
     composingText = new QString();
+
+#ifdef ALIEN_DEBUG
+    ++qCocoaViewCount;
+    qDebug() << "init: qCocoaViewCount is" << qCocoaViewCount;
+#endif
+
     composing = false;
     sendKeyEvents = true;
-    currentCustomTypes = 0;
     [self setHidden:YES];
     return self;
@@ -228 +222 @@
 }
 
--(void)registerDragTypes
-{
-    QMacCocoaAutoReleasePool pool;
-    // Calling registerForDraggedTypes is slow, so only do it once for each widget
-    // or when the custom types change.
-    const QStringList& customTypes = qEnabledDraggedTypes();
-    if (currentCustomTypes == 0 || *currentCustomTypes != customTypes) {
-        if (currentCustomTypes == 0)
-            currentCustomTypes = new QStringList();
-        *currentCustomTypes = customTypes;
-        const NSString* mimeTypeGeneric = @"com.trolltech.qt.MimeTypeName";
-        NSMutableArray *supportedTypes = [NSMutableArray arrayWithObjects:NSColorPboardType,
-                                   NSFilenamesPboardType, NSStringPboardType,
-                                   NSFilenamesPboardType, NSPostScriptPboardType, NSTIFFPboardType,
-                                   NSRTFPboardType, NSTabularTextPboardType, NSFontPboardType,
-                                   NSRulerPboardType, NSFileContentsPboardType, NSColorPboardType,
-                                   NSRTFDPboardType, NSHTMLPboardType, NSPICTPboardType,
-                                   NSURLPboardType, NSPDFPboardType, NSVCardPboardType,
-                                   NSFilesPromisePboardType, NSInkTextPboardType,
-                                   NSMultipleTextSelectionPboardType, mimeTypeGeneric, nil];
-        // Add custom types supported by the application.
-        for (int i = 0; i < customTypes.size(); i++) {
-           [supportedTypes addObject:reinterpret_cast<const NSString *>(QCFString::toCFStringRef(customTypes[i]))];
-        }
-        [self registerForDraggedTypes:supportedTypes];
-    }
-}
-
 - (void)resetCursorRects
 {
+    // [NSView addCursorRect] is slow, so bail out early if we can:
+    if (NSIsEmptyRect([self visibleRect]))
+        return;
+
     QWidget *cursorWidget = qwidget;
 
@@ -273 +243 @@
     QRegion mask = qt_widget_private(cursorWidget)->extra->mask;
     NSCursor *nscursor = static_cast<NSCursor *>(qt_mac_nsCursorForQCursor(cursorWidget->cursor()));
-    if (mask.isEmpty()) {
+    // The mask could have the WA_MouseNoMask attribute set and that means that we have to ignore the mask.
+    if (mask.isEmpty() || cursorWidget->testAttribute(Qt::WA_MouseNoMask)) {
         [self addCursorRect:[qt_mac_nativeview_for(cursorWidget) visibleRect] cursor:nscursor];
     } else {
@@ -299 +270 @@
 }
 
+- (void)changeDraggingCursor:(NSDragOperation)newOperation
+{
+    static SEL action = nil;
+    static bool operationSupported = false;
+    if (action == nil) {
+        action = NSSelectorFromString(@"operationNotAllowedCursor");
+        if ([NSCursor respondsToSelector:action]) {
+            operationSupported = true;
+        }
+    }
+    if (operationSupported) {
+        NSCursor *notAllowedCursor = [NSCursor performSelector:action];
+        bool isNotAllowedCursor = ([NSCursor currentCursor] == notAllowedCursor);
+        if (newOperation == NSDragOperationNone && !isNotAllowedCursor) {
+            [notAllowedCursor push];
+        } else if (newOperation != NSDragOperationNone && isNotAllowedCursor) {
+            [notAllowedCursor pop];
+        }
+
+    }
+}
+
 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
 {
-    if (qwidget->testAttribute(Qt::WA_DropSiteRegistered) == false)
-        return NSDragOperationNone;
+    // NB: This function is called from QCoocaWindow/QCocoaPanel rather than directly
+    // from Cocoa. They modify the drag target, and might fake enter/leave events.
     NSPoint windowPoint = [sender draggingLocation];
-    if (qwidget->testAttribute(Qt::WA_TransparentForMouseEvents)) {
-        // pass the drag enter event to the view underneath.
-        NSView *candidateView = [[[self window] contentView] hitTest:windowPoint];
-        if (candidateView && candidateView != self)
-            return [candidateView draggingEntered:sender];
-    }
     dragEnterSequence = [sender draggingSequenceNumber];
     [self addDropData:sender];
@@ -336 +323 @@
         // widget is not interested in this drag, so ignore this drop data.
         [self removeDropData];
+        [self changeDraggingCursor:NSDragOperationNone];
         return NSDragOperationNone;
     } else {
@@ -357 +345 @@
         }
         QT_PREPEND_NAMESPACE(qt_mac_copy_answer_rect)(qDMEvent);
+        [self changeDraggingCursor:nsActions];
         return nsActions;
     }
@@ -362 +351 @@
 - (NSDragOperation)draggingUpdated:(id < NSDraggingInfo >)sender
 {
+    // NB: This function is called from QCoocaWindow/QCocoaPanel rather than directly
+    // from Cocoa. They modify the drag target, and might fake enter/leave events.
     NSPoint windowPoint = [sender draggingLocation];
-    if (qwidget->testAttribute(Qt::WA_TransparentForMouseEvents)) {
-        // pass the drag move event to the view underneath.
-        NSView *candidateView = [[[self window] contentView] hitTest:windowPoint];
-        if (candidateView && candidateView != self)
-            return [candidateView draggingUpdated:sender];
-    }
     // in cases like QFocusFrame, the view under the mouse might
     // not have received the drag enter. Generate a synthetic
@@ -375 +360 @@
         [self draggingEntered:sender];
     // drag enter event was rejected, so ignore the move event.
-    if (dropData == 0)
+    if (dropData == 0) {
+        [self changeDraggingCursor:NSDragOperationNone];
         return NSDragOperationNone;
+    }
     // return last value, if we are still in the answerRect.
     NSPoint globalPoint = [[sender draggingDestinationWindow] convertBaseToScreen:windowPoint];
@@ -383 +370 @@
     QPoint posDrag(localPoint.x, localPoint.y);
     if (qt_mac_mouse_inside_answer_rect(posDrag)
-        && QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec.lastOperation) == nsActions)
-        return QT_PREPEND_NAMESPACE(qt_mac_mapDropActions)(QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec.lastAction));
+        && QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec.lastOperation) == nsActions) {
+        NSDragOperation operation = QT_PREPEND_NAMESPACE(qt_mac_mapDropActions)(QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec.lastAction));
+        [self changeDraggingCursor:operation];
+        return operation;
+    }
     // send drag move event to the widget
     QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec.lastOperation) = nsActions;
@@ -401 +391 @@
         mimeData = QDragManager::self()->dragPrivate()->data;
     QDragMoveEvent qDMEvent(posDrag, qtAllowed, mimeData, QApplication::mouseButtons(), modifiers);
-    qDMEvent.setDropAction(QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec).lastAction);
+    if (QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec).lastAction != Qt::IgnoreAction
+        && QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec).buttons == qDMEvent.mouseButtons()
+        && QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec).modifiers == qDMEvent.keyboardModifiers())
+        qDMEvent.setDropAction(QT_PREPEND_NAMESPACE(qt_mac_dnd_answer_rec).lastAction);
     qDMEvent.accept();
     QApplication::sendEvent(qwidget, &qDMEvent);
@@ -413 +406 @@
     }
     qt_mac_copy_answer_rect(qDMEvent);
+    [self changeDraggingCursor:operation];
     return operation;
 }
@@ -418 +412 @@
 - (void)draggingExited:(id < NSDraggingInfo >)sender
 {
+    // NB: This function is called from QCoocaWindow/QCocoaPanel rather than directly
+    // from Cocoa. They modify the drag target, and might fake enter/leave events.
+    Q_UNUSED(sender);
     dragEnterSequence = -1;
-    if (qwidget->testAttribute(Qt::WA_TransparentForMouseEvents)) {
-        // try sending the leave event to the last view which accepted drag enter.
-        DnDParams *dndParams = [QT_MANGLE_NAMESPACE(QCocoaView) currentMouseEvent];
-        NSView *candidateView = [[[self window] contentView] hitTest:dndParams->activeDragEnterPos];
-        if (candidateView && candidateView != self)
-            return [candidateView draggingExited:sender];
-    }
     // drag enter event was rejected, so ignore the move event.
     if (dropData) {
@@ -432 +422 @@
         [self removeDropData];
     }
+    [self changeDraggingCursor:NSDragOperationEvery];
+
 }
 
 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
 {
+    // NB: This function is called from QCoocaWindow/QCocoaPanel rather than directly
+    // from Cocoa. They modify the drag target, and might fake enter/leave events.
     NSPoint windowPoint = [sender draggingLocation];
     dragEnterSequence = -1;
-    if (qwidget->testAttribute(Qt::WA_TransparentForMouseEvents)) {
-        // pass the drop event to the view underneath.
-        NSView *candidateView = [[[self window] contentView] hitTest:windowPoint];
-        if (candidateView && candidateView != self)
-            return [candidateView performDragOperation:sender];
-    }
     [self addDropData:sender];
 
@@ -473 +461 @@
     delete composingText;
     [[NSNotificationCenter defaultCenter] removeObserver:self];
-    delete currentCustomTypes;
-    [self unregisterDraggedTypes];
+
+#ifdef ALIEN_DEBUG
+    --qCocoaViewCount;
+    qDebug() << "qCocoaViewCount is" << qCocoaViewCount;
+#endif
+
     [super dealloc];
 }
@@ -480 +472 @@
 - (BOOL)isOpaque;
 {
+    if (!qwidgetprivate)
+        return [super isOpaque];
     return qwidgetprivate->isOpaque;
 }
@@ -488 +482 @@
 }
 
-- (BOOL) preservesContentDuringLiveResize;
+// We preserve the content of the view if WA_StaticContents is defined.
+//
+// More info in the Cocoa documentation:
+// http://developer.apple.com/mac/library/documentation/cocoa/conceptual/CocoaViewsGuide/Optimizing/Optimizing.html
+- (BOOL) preservesContentDuringLiveResize
 {
     return qwidget->testAttribute(Qt::WA_StaticContents);
@@ -511 +509 @@
 
     // Make sure the opengl context is updated on resize.
-    if (qwidgetprivate->isGLWidget) {
+    if (qwidgetprivate && qwidgetprivate->isGLWidget) {
         qwidgetprivate->needWindowChange = true;
         QEvent event(QEvent::MacGLWindowChange);
@@ -518 +516 @@
 }
 
+// We catch the 'setNeedsDisplay:' message in order to avoid a useless full repaint.
+// During the resize, the top of the widget is repainted, probably because of the
+// change of coordinate space (Quartz vs Qt). This is then followed by this message:
+// -[NSView _setNeedsDisplayIfTopLeftChanged]
+// which force a full repaint by sending the message 'setNeedsDisplay:'.
+// That is what we are preventing here.
+- (void)setNeedsDisplay:(BOOL)flag {
+    if (![self inLiveResize] || !(qwidget->testAttribute(Qt::WA_StaticContents))) {
+        [super setNeedsDisplay:flag];
+    }
+}
+
 - (void)drawRect:(NSRect)aRect
 {
+    if (!qwidget)
+        return;
+
     if (QApplicationPrivate::graphicsSystem() != 0) {
-        if (QWidgetBackingStore *bs = qwidgetprivate->maybeBackingStore()) {
+        if (qwidgetprivate->maybeBackingStore()) {
             // Drawing is handled on the window level
-            // See qcocoasharedwindowmethods_mac_p.
-            return;
+            // See qcocoasharedwindowmethods_mac_p.h
+            if (!qwidget->testAttribute(Qt::WA_PaintOnScreen))
+                return;
         }
     }
@@ -536 +550 @@
 
         const QRect qrect = QRect(aRect.origin.x, aRect.origin.y, aRect.size.width, aRect.size.height);
-        QRegion qrgn(qrect);
+        QRegion qrgn;
+
+        const NSRect *rects;
+        NSInteger count;
+        [self getRectsBeingDrawn:&rects count:&count];
+        for (int i = 0; i < count; ++i) {
+            QRect tmpRect = QRect(rects[i].origin.x, rects[i].origin.y, rects[i].size.width, rects[i].size.height);
+            qrgn += tmpRect;
+        }
 
         if (!qwidget->isWindow() && !qobject_cast<QAbstractScrollArea *>(qwidget->parent())) {
@@ -570 +592 @@
         }
 
+        // Check for alien widgets, use qwidgetPrivate->drawWidget() to draw the widget if this
+        // is the case. This makes sure child widgets are drawn as well, Cocoa does not know about
+        // those and wont send them drawRect calls.
+        if (qwidget->testAttribute(Qt::WA_NativeWindow) && qt_widget_private(qwidget)->hasAlienChildren == false) {
         if (engine && !qwidget->testAttribute(Qt::WA_NoSystemBackground)
             && (qwidget->isWindow() || qwidget->autoFillBackground())
@@ -589 +615 @@
 #endif
         qt_sendSpontaneousEvent(qwidget, &e);
+        } else {
+           qwidget->setAttribute(Qt::WA_WState_InPaintEvent, false); // QWidgetPrivate::drawWidget sets this
+           QWidgetPrivate *qwidgetPrivate = qt_widget_private(qwidget);
+           qwidgetPrivate->drawWidget(qwidget, qrgn, QPoint(), QWidgetPrivate::DrawAsRoot | QWidgetPrivate::DrawPaintOnScreen | QWidgetPrivate::DrawRecursive, 0);
+        }
+
         if (!redirectionOffset.isNull())
             QPainter::restoreRedirected(qwidget);
@@ -604 +636 @@
 - (BOOL)acceptsFirstMouse:(NSEvent *)theEvent
 {
+    if (!qwidget)
+        return NO;
+
     Q_UNUSED(theEvent);
     return !qwidget->testAttribute(Qt::WA_MacNoClickThrough);
@@ -610 +645 @@
 - (NSView *)hitTest:(NSPoint)aPoint
 {
+    if (!qwidget)
+        return [super hitTest:aPoint];
+
     if (qwidget->testAttribute(Qt::WA_TransparentForMouseEvents))
         return nil; // You cannot hit a transparent for mouse event widget.
@@ -617 +655 @@
 - (void)updateTrackingAreas
 {
+    if (!qwidget)
+        return;
+
+    // [NSView addTrackingArea] is slow, so bail out early if we can:
+    if (NSIsEmptyRect([self visibleRect]))
+        return;
+
     QMacCocoaAutoReleasePool pool;
     if (NSArray *trackingArray = [self trackingAreas]) {
@@ -646 +691 @@
 - (void)mouseEntered:(NSEvent *)event
 {
+    if (!qwidget)
+        return;
     if (qwidgetprivate->data.in_destructor)
         return;
-    QEvent enterEvent(QEvent::Enter);
-    NSPoint windowPoint = [event locationInWindow];
-    NSPoint globalPoint = [[event window] convertBaseToScreen:windowPoint];
-    NSPoint viewPoint = [self convertPoint:windowPoint fromView:nil];
+
     if (!qAppInstance()->activeModalWidget() || QApplicationPrivate::tryModalHelper(qwidget, 0)) {
+        QEvent enterEvent(QEvent::Enter);
+        NSPoint windowPoint = [event locationInWindow];
+        NSPoint globalPoint = [[event window] convertBaseToScreen:windowPoint];
+        NSPoint viewPoint = [self convertPoint:windowPoint fromView:nil];
         QApplication::sendEvent(qwidget, &enterEvent);
         qt_mouseover = qwidget;
 
-        // Update cursor and dispatch hover events.
+        // Update cursor icon:
         qt_mac_update_cursor_at_global_pos(flipPoint(globalPoint).toPoint());
-        if (qwidget->testAttribute(Qt::WA_Hover) &&
-            (!qAppInstance()->activePopupWidget() || qAppInstance()->activePopupWidget() == qwidget->window())) {
-            QHoverEvent he(QEvent::HoverEnter, QPoint(viewPoint.x, viewPoint.y), QPoint(-1, -1));
-            QApplicationPrivate::instance()->notify_helper(qwidget, &he);
+
+        // Send mouse move and hover events as well:
+        if (!qAppInstance()->activePopupWidget() || qAppInstance()->activePopupWidget() == qwidget->window()) {
+            // This mouse move event should be sendt, even when mouse
+            // tracking is switched off (to trigger tooltips):
+            NSEvent *mouseEvent = [NSEvent mouseEventWithType:NSMouseMoved
+                location:windowPoint modifierFlags:[event modifierFlags] timestamp:[event timestamp]
+                windowNumber:[event windowNumber] context:[event context] eventNumber:[event eventNumber]
+                clickCount:0 pressure:0];
+            qt_mac_handleMouseEvent(self, mouseEvent, QEvent::MouseMove, Qt::NoButton);
+
+            if (qwidget->testAttribute(Qt::WA_Hover)) {
+                QHoverEvent he(QEvent::HoverEnter, QPoint(viewPoint.x, viewPoint.y), QPoint(-1, -1));
+                QApplicationPrivate::instance()->notify_helper(qwidget, &he);
+            }
         }
     }
@@ -668 +727 @@
 - (void)mouseExited:(NSEvent *)event
 {
+    if (!qwidget)
+        return;
+
     QEvent leaveEvent(QEvent::Leave);
     NSPoint globalPoint = [[event window] convertBaseToScreen:[event locationInWindow]];
@@ -686 +748 @@
 - (void)flagsChanged:(NSEvent *)theEvent
 {
+    if (!qwidget)
+        return;
+
     QWidget *widgetToGetKey = qwidget;
 
@@ -697 +762 @@
 - (void)mouseMoved:(NSEvent *)theEvent
 {
+    if (!qwidget)
+        return;
+
     // We always enable mouse tracking for all QCocoaView-s. In cases where we have
     // child views, we will receive mouseMoved for both parent & the child (if
@@ -816 +884 @@
         // Since deviceDelta is delivered as pixels rather than degrees, we need to
         // convert from pixels to degrees in a sensible manner.
-        // It looks like four degrees per pixel behaves most native.
-        // Qt expects the unit for delta to be 1/8 of a degree:
-        deltaX = [theEvent deviceDeltaX];
-        deltaY = [theEvent deviceDeltaY];
-        deltaZ = [theEvent deviceDeltaZ];
+        // It looks like 1/4 degrees per pixel behaves most native.
+        // (NB: Qt expects the unit for delta to be 8 per degree):
+        const int pixelsToDegrees = 2; // 8 * 1/4
+        deltaX = [theEvent deviceDeltaX] * pixelsToDegrees;
+        deltaY = [theEvent deviceDeltaY] * pixelsToDegrees;
+        deltaZ = [theEvent deviceDeltaZ] * pixelsToDegrees;
     } else {
         // carbonEventKind == kEventMouseWheelMoved
@@ -871 +940 @@
     }
 #endif //QT_NO_WHEELEVENT
-
-    if (!wheelOK) {
-        return [super scrollWheel:theEvent];
-    }
 }
 
@@ -919 +984 @@
         return;
 
+#ifndef QT_NO_GESTURES
     QNativeGestureEvent qNGEvent;
     qNGEvent.gestureType = QNativeGestureEvent::Zoom;
@@ -925 +991 @@
     qNGEvent.percentage = [event magnification];
     qt_sendSpontaneousEvent(qwidget, &qNGEvent);
+#endif // QT_NO_GESTURES
 }
 
@@ -932 +999 @@
         return;
 
+#ifndef QT_NO_GESTURES
     QNativeGestureEvent qNGEvent;
     qNGEvent.gestureType = QNativeGestureEvent::Rotate;
@@ -938 +1006 @@
     qNGEvent.percentage = -[event rotation];
     qt_sendSpontaneousEvent(qwidget, &qNGEvent);
+#endif // QT_NO_GESTURES
 }
 
@@ -945 +1014 @@
         return;
 
+#ifndef QT_NO_GESTURES
     QNativeGestureEvent qNGEvent;
     qNGEvent.gestureType = QNativeGestureEvent::Swipe;
@@ -958 +1028 @@
         qNGEvent.angle = 270.0f;
     qt_sendSpontaneousEvent(qwidget, &qNGEvent);
+#endif // QT_NO_GESTURES
 }
 
@@ -965 +1036 @@
         return;
 
+#ifndef QT_NO_GESTURES
     QNativeGestureEvent qNGEvent;
     qNGEvent.gestureType = QNativeGestureEvent::GestureBegin;
@@ -970 +1042 @@
     qNGEvent.position = flipPoint(p).toPoint();
     qt_sendSpontaneousEvent(qwidget, &qNGEvent);
+#endif // QT_NO_GESTURES
 }
 
@@ -977 +1050 @@
         return;
 
+#ifndef QT_NO_GESTURES
     QNativeGestureEvent qNGEvent;
     qNGEvent.gestureType = QNativeGestureEvent::GestureEnd;
@@ -982 +1056 @@
     qNGEvent.position = flipPoint(p).toPoint();
     qt_sendSpontaneousEvent(qwidget, &qNGEvent);
+#endif // QT_NO_GESTURES
 }
 
@@ -987 +1062 @@
 {
     Q_UNUSED(note);
+    if (!qwidget)
+        return;
     if (qwidget->isWindow())
         return;
@@ -1010 +1087 @@
     QMacCocoaAutoReleasePool pool;
     [super setEnabled:flag];
-    if (qwidget->isEnabled() != flag)
+    if (qwidget && qwidget->isEnabled() != flag)
         qwidget->setEnabled(flag);
 }
@@ -1021 +1098 @@
 - (BOOL)acceptsFirstResponder
 {
-    if (qwidget->isWindow())
+    if (!qwidget)
+        return NO;
+    // disabled widget shouldn't get focus even if it's a window.
+    // hence disabled windows will not get any key or mouse events.
+    if (!qwidget->isEnabled())
+        return NO;
+    // Before accepting the focus for a window, we check that
+    // the focusWidget (if any) is not contained in the same window.
+    if (qwidget->isWindow() && !qt_widget_private(qwidget)->topData()->embedded
+        && (!qApp->focusWidget() || qApp->focusWidget()->window() != qwidget)) {
         return YES;  // Always do it, so that windows can accept key press events.
+    }
     return qwidget->focusPolicy() != Qt::NoFocus;
 }
@@ -1028 +1115 @@
 - (BOOL)resignFirstResponder
 {
+    if (!qwidget)
+        return NO;
     // Seems like the following test only triggers if this
     // view is inside a QMacNativeWidget:
     if (qwidget == QApplication::focusWidget())
-        QApplicationPrivate::setFocusWidget(0, Qt::OtherFocusReason);
+        qwidget->clearFocus();
+    return YES;
+}
+
+- (BOOL)becomeFirstResponder
+{
+    // see the comment in the acceptsFirstResponder - if the window "stole" focus
+    // let it become the responder, but don't tell Qt
+    if (qwidget && qt_widget_private(qwidget->window())->topData()->embedded
+        && !QApplication::focusWidget() && qwidget->focusPolicy() != Qt::NoFocus)
+        qwidget->setFocus(Qt::OtherFocusReason);
     return YES;
 }
@@ -1063 +1162 @@
 }
 
+- (void) qt_clearQWidget
+{
+    qwidget = 0;
+    qwidgetprivate = 0;
+}
+
 - (BOOL)qt_leftButtonIsRightButton
 {
@@ -1099 +1204 @@
     if (sendKeyEvents && !composing) {
         bool keyOK = qt_dispatchKeyEvent(theEvent, widgetToGetKey);
-        if (!keyOK && !sendToPopup)
-            [super keyDown:theEvent];
+        if (!keyOK && !sendToPopup) {
+            // find the first responder that is not created by Qt and forward
+            // the event to it (for example if Qt widget is embedded into native).
+            QWidget *toplevel = qwidget->window();
+            if (toplevel && qt_widget_private(toplevel)->topData()->embedded) {
+                if (NSResponder *w = [qt_mac_nativeview_for(toplevel) superview])
+                    [w keyDown:theEvent];
+            }
+        }
     }
 }
@@ -1109 +1221 @@
     if (sendKeyEvents) {
         bool keyOK = qt_dispatchKeyEvent(theEvent, qwidget);
-        if (!keyOK)
-            [super keyUp:theEvent];
+        if (!keyOK) {
+            QWidget *toplevel = qwidget->window();
+            if (toplevel && qt_widget_private(toplevel)->topData()->embedded) {
+                if (NSResponder *w = [qt_mac_nativeview_for(toplevel) superview])
+                    [w keyUp:theEvent];
+            }
+        }
     }
 }
@@ -1116 +1233 @@
 - (void)viewWillMoveToWindow:(NSWindow *)window
 {
+    if (qwidget == 0)
+        return;
+
     if (qwidget->windowFlags() & Qt::MSWindowsOwnDC
           && (window != [self window])) { // OpenGL Widget
-        // Create a stupid ClearDrawable Event
         QEvent event(QEvent::MacGLClearDrawable);
         qApp->sendEvent(qwidget, &event);
@@ -1126 +1245 @@
 - (void)viewDidMoveToWindow
 {
+    if (qwidget == 0)
+        return;
+
     if (qwidget->windowFlags() & Qt::MSWindowsOwnDC && [self window]) {
         // call update paint event
@@ -1321 +1443 @@
 - (NSArray*) validAttributesForMarkedText
 {
+    if (qwidget == 0)
+        return nil;
+
     if (!qwidget->testAttribute(Qt::WA_InputMethodEnabled))
         return nil;  // Not sure if that's correct, but it's saves a malloc.
@@ -1471 +1596 @@
     [dndParams.view release];
     [image release];
-    dragPrivate()->executed_action = Qt::IgnoreAction;
+    if (dragPrivate())
+        dragPrivate()->executed_action = Qt::IgnoreAction;
     object = 0;
     Qt::DropAction performedAction(qt_mac_mapNSDragOperation(qMacDnDParams()->performedAction));
@@ -1493 +1619 @@
         }
     }
+    o->setMimeData(0);
+    o->deleteLater();
     return performedAction;
 }