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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/****************************************************************************
**
** Copyright (c) 2007-2008, Apple, Inc.
**
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
**
** * Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer.
**
** * Redistributions in binary form must reproduce the above copyright notice,
** this list of conditions and the following disclaimer in the documentation
** and/or other materials provided with the distribution.
**
** * Neither the name of Apple, Inc. nor the names of its contributors
** may be used to endorse or promote products derived from this software
** without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
** PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
****************************************************************************/
#ifndef QEVENTDISPATCHER_MAC_P_H
#define QEVENTDISPATCHER_MAC_P_H
//
// 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 <QtGui/qwindowdefs.h>
#include <QtCore/qhash.h>
#include <QtCore/qstack.h>
#include "private/qabstracteventdispatcher_p.h"
#include "private/qt_mac_p.h"
QT_BEGIN_NAMESPACE
#ifdef QT_MAC_USE_COCOA
typedef struct _NSModalSession *NSModalSession;
typedef struct _QCocoaModalSessionInfo {
QPointer<QWidget> widget;
NSModalSession session;
void *nswindow;
} QCocoaModalSessionInfo;
#endif
class QEventDispatcherMacPrivate;
class QEventDispatcherMac : public QAbstractEventDispatcher
{
Q_OBJECT
Q_DECLARE_PRIVATE(QEventDispatcherMac)
public:
explicit QEventDispatcherMac(QObject *parent = 0);
~QEventDispatcherMac();
bool processEvents(QEventLoop::ProcessEventsFlags flags);
bool hasPendingEvents();
void registerSocketNotifier(QSocketNotifier *notifier);
void unregisterSocketNotifier(QSocketNotifier *notifier);
void registerTimer(int timerId, int interval, QObject *object);
bool unregisterTimer(int timerId);
bool unregisterTimers(QObject *object);
QList<TimerInfo> registeredTimers(QObject *object) const;
void wakeUp();
void flush();
void interrupt();
private:
friend void qt_mac_select_timer_callbk(__EventLoopTimer*, void*);
friend class QApplicationPrivate;
};
struct MacTimerInfo {
int id;
int interval;
QObject *obj;
bool pending;
CFRunLoopTimerRef runLoopTimer;
bool operator==(const MacTimerInfo &other)
{
return (id == other.id);
}
};
typedef QHash<int, MacTimerInfo *> MacTimerHash;
struct MacSocketInfo {
MacSocketInfo() : socket(0), runloop(0), readNotifier(0), writeNotifier(0) {}
CFSocketRef socket;
CFRunLoopSourceRef runloop;
QObject *readNotifier;
QObject *writeNotifier;
};
typedef QHash<int, MacSocketInfo *> MacSocketHash;
class QEventDispatcherMacPrivate : public QAbstractEventDispatcherPrivate
{
Q_DECLARE_PUBLIC(QEventDispatcherMac)
public:
QEventDispatcherMacPrivate();
static MacTimerHash macTimerHash;
// Set 'blockSendPostedEvents' to true if you _really_ need
// to make sure that qt events are not posted while calling
// low-level cocoa functions (like beginModalForWindow). And
// use a QBoolBlocker to be safe:
static bool blockSendPostedEvents;
#ifdef QT_MAC_USE_COCOA
// The following variables help organizing modal sessions:
static QStack<QCocoaModalSessionInfo> cocoaModalSessionStack;
static bool currentExecIsNSAppRun;
static bool nsAppRunCalledByQt;
static bool cleanupModalSessionsNeeded;
static NSModalSession currentModalSessionCached;
static NSModalSession currentModalSession();
static void updateChildrenWorksWhenModal();
static void temporarilyStopAllModalSessions();
static void beginModalSession(QWidget *widget);
static void endModalSession(QWidget *widget);
static void cancelWaitForMoreEvents();
static void cleanupModalSessions();
static void ensureNSAppInitialized();
#endif
MacSocketHash macSockets;
QList<void *> queuedUserInputEvents; // List of EventRef in Carbon, and NSEvent * in Cocoa
CFRunLoopSourceRef postedEventsSource;
CFRunLoopObserverRef waitingObserver;
CFRunLoopObserverRef firstTimeObserver;
QAtomicInt serialNumber;
int lastSerial;
static bool interrupt;
private:
static Boolean postedEventSourceEqualCallback(const void *info1, const void *info2);
static void postedEventsSourcePerformCallback(void *info);
static void activateTimer(CFRunLoopTimerRef, void *info);
static void waitingObserverCallback(CFRunLoopObserverRef observer,
CFRunLoopActivity activity, void *info);
static void firstLoopEntry(CFRunLoopObserverRef ref, CFRunLoopActivity activity, void *info);
};
#ifdef QT_MAC_USE_COCOA
class QtMacInterruptDispatcherHelp : public QObject
{
static QtMacInterruptDispatcherHelp *instance;
bool cancelled;
QtMacInterruptDispatcherHelp();
~QtMacInterruptDispatcherHelp();
public:
static void interruptLater();
static void cancelInterruptLater();
};
#endif
QT_END_NAMESPACE
#endif // QEVENTDISPATCHER_MAC_P_H
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