/****************************************************************************
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtGui module of the Qt Toolkit.
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** This file contains pre-release code and may not be distributed.
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** GNU Lesser General Public License Usage
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** 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
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****************************************************************************/

#import <private/qcocoapanel_mac_p.h>
#ifdef QT_MAC_USE_COCOA
#import <private/qt_cocoa_helpers_mac_p.h>
#import <private/qcocoawindow_mac_p.h>
#import <private/qcocoawindowdelegate_mac_p.h>
#import <private/qcocoaview_mac_p.h>
#import <private/qcocoawindowcustomthemeframe_mac_p.h>

#include <QtGui/QWidget>

QT_FORWARD_DECLARE_CLASS(QWidget);
QT_BEGIN_NAMESPACE
extern Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum); // qcocoaview.mm
QT_END_NAMESPACE
QT_USE_NAMESPACE

@interface NSWindow (QtCoverForHackWithCategory)
+ (Class)frameViewClassForStyleMask:(NSUInteger)styleMask;
@end

@implementation QT_MANGLE_NAMESPACE(QCocoaPanel)

- (BOOL)canBecomeKeyWindow
{
QWidget *widget = [self QT_MANGLE_NAMESPACE(qt_qwidget)];

bool isToolTip = (widget->windowType() == Qt::ToolTip);
bool isPopup = (widget->windowType() == Qt::Popup);
return !(isPopup || isToolTip);
}

/***********************************************************************
BEGIN Copy and Paste between QCocoaWindow and QCocoaPanel
This is a bit unfortunate, but thanks to the dynamic dispatch we
have to duplicate this code or resort to really silly forwarding methods
**************************************************************************/

/*
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)toggleToolbarShown:(id)sender
{
macSendToolbarChangeEvent([self QT_MANGLE_NAMESPACE(qt_qwidget)]);
[super toggleToolbarShown:sender];
}

- (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
{
QWidget *widget = [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] qt_qwidgetForWindow:self];

// Cocoa can hold onto the window after we've disavowed its knowledge. So,
// if we get sent an event afterwards just have it go through the super's
// version and don't do any stuff with Qt.
if (!widget) {
[super sendEvent:event];
return;
}
[self retain];
QT_MANGLE_NAMESPACE(QCocoaView) *view = static_cast<QT_MANGLE_NAMESPACE(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];
}

- (BOOL)makeFirstResponder:(NSResponder *)responder
{
// For some reason Cocoa wants to flip the first responder
// when Qt doesn't want to, sorry, but "No" :-)
if (responder == nil && qApp->focusWidget())
return NO;
return [super makeFirstResponder:responder];
}

/***********************************************************************
END Copy and Paste between QCocoaWindow and QCocoaPanel
***********************************************************************/
+ (Class)frameViewClassForStyleMask:(NSUInteger)styleMask
{
if (styleMask & QtMacCustomizeWindow)
return [QT_MANGLE_NAMESPACE(QCocoaWindowCustomThemeFrame) class];
return [super frameViewClassForStyleMask:styleMask];
}

@end
#endif