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224 lines
8 KiB
C++
224 lines
8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/****************************************************************************
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**
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** Copyright (c) 2007-2008, Apple, Inc.
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**
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are met:
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**
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** * Redistributions of source code must retain the above copyright notice,
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** this list of conditions and the following disclaimer.
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**
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** * Redistributions in binary form must reproduce the above copyright notice,
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** this list of conditions and the following disclaimer in the documentation
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** and/or other materials provided with the distribution.
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**
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** * Neither the name of Apple, Inc. nor the names of its contributors
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** may be used to endorse or promote products derived from this software
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** without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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** PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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****************************************************************************/
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#ifndef QEVENTDISPATCHER_MAC_P_H
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#define QEVENTDISPATCHER_MAC_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtGui/qwindowdefs.h>
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#include <QtCore/qhash.h>
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#include <QtCore/qstack.h>
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#include "qabstracteventdispatcher_p.h"
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#include "qt_mac_p.h"
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QT_BEGIN_NAMESPACE
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#ifdef QT_MAC_USE_COCOA
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typedef struct _NSModalSession *NSModalSession;
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typedef struct _QCocoaModalSessionInfo {
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QPointer<QWidget> widget;
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NSModalSession session;
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void *nswindow;
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} QCocoaModalSessionInfo;
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#endif
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class QEventDispatcherMacPrivate;
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class QEventDispatcherMac : public QAbstractEventDispatcher
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{
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Q_OBJECT
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Q_DECLARE_PRIVATE(QEventDispatcherMac)
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public:
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explicit QEventDispatcherMac(QObject *parent = 0);
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~QEventDispatcherMac();
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bool processEvents(QEventLoop::ProcessEventsFlags flags);
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bool hasPendingEvents();
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void registerSocketNotifier(QSocketNotifier *notifier);
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void unregisterSocketNotifier(QSocketNotifier *notifier);
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void registerTimer(int timerId, int interval, QObject *object);
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bool unregisterTimer(int timerId);
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bool unregisterTimers(QObject *object);
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QList<TimerInfo> registeredTimers(QObject *object) const;
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void wakeUp();
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void flush();
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void interrupt();
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private:
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friend void qt_mac_select_timer_callbk(__EventLoopTimer*, void*);
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friend class QApplicationPrivate;
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};
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struct MacTimerInfo {
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int id;
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int interval;
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QObject *obj;
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bool pending;
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CFRunLoopTimerRef runLoopTimer;
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bool operator==(const MacTimerInfo &other)
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{
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return (id == other.id);
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}
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};
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typedef QHash<int, MacTimerInfo *> MacTimerHash;
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struct MacSocketInfo {
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MacSocketInfo() : socket(0), runloop(0), readNotifier(0), writeNotifier(0) {}
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CFSocketRef socket;
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CFRunLoopSourceRef runloop;
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QObject *readNotifier;
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QObject *writeNotifier;
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};
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typedef QHash<int, MacSocketInfo *> MacSocketHash;
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class QEventDispatcherMacPrivate : public QAbstractEventDispatcherPrivate
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{
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Q_DECLARE_PUBLIC(QEventDispatcherMac)
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public:
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QEventDispatcherMacPrivate();
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static MacTimerHash macTimerHash;
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// Set 'blockSendPostedEvents' to true if you _really_ need
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// to make sure that qt events are not posted while calling
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// low-level cocoa functions (like beginModalForWindow). And
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// use a QBoolBlocker to be safe:
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static bool blockSendPostedEvents;
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#ifdef QT_MAC_USE_COCOA
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// The following variables help organizing modal sessions:
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static QStack<QCocoaModalSessionInfo> cocoaModalSessionStack;
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static bool currentExecIsNSAppRun;
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static bool nsAppRunCalledByQt;
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static bool cleanupModalSessionsNeeded;
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static NSModalSession currentModalSessionCached;
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static NSModalSession currentModalSession();
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static void updateChildrenWorksWhenModal();
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static void temporarilyStopAllModalSessions();
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static void beginModalSession(QWidget *widget);
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static void endModalSession(QWidget *widget);
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static void cancelWaitForMoreEvents();
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static void cleanupModalSessions();
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static void ensureNSAppInitialized();
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#endif
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MacSocketHash macSockets;
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QList<void *> queuedUserInputEvents; // List of EventRef in Carbon, and NSEvent * in Cocoa
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CFRunLoopSourceRef postedEventsSource;
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CFRunLoopObserverRef waitingObserver;
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CFRunLoopObserverRef firstTimeObserver;
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QAtomicInt serialNumber;
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int lastSerial;
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static bool interrupt;
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private:
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static Boolean postedEventSourceEqualCallback(const void *info1, const void *info2);
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static void postedEventsSourcePerformCallback(void *info);
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static void activateTimer(CFRunLoopTimerRef, void *info);
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static void waitingObserverCallback(CFRunLoopObserverRef observer,
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CFRunLoopActivity activity, void *info);
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static void firstLoopEntry(CFRunLoopObserverRef ref, CFRunLoopActivity activity, void *info);
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};
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#ifdef QT_MAC_USE_COCOA
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class QtMacInterruptDispatcherHelp : public QObject
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{
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static QtMacInterruptDispatcherHelp *instance;
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bool cancelled;
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QtMacInterruptDispatcherHelp();
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~QtMacInterruptDispatcherHelp();
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public:
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static void interruptLater();
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static void cancelInterruptLater();
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};
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#endif
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QT_END_NAMESPACE
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#endif // QEVENTDISPATCHER_MAC_P_H
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