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Diffstat (limited to 'src/platformsupport/eventdispatchers/qeventdispatcher_cf_p.h')
| -rw-r--r-- | src/platformsupport/eventdispatchers/qeventdispatcher_cf_p.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/src/platformsupport/eventdispatchers/qeventdispatcher_cf_p.h b/src/platformsupport/eventdispatchers/qeventdispatcher_cf_p.h new file mode 100644 index 0000000000..e23b8f0ece --- /dev/null +++ b/src/platformsupport/eventdispatchers/qeventdispatcher_cf_p.h @@ -0,0 +1,228 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** 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, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/**************************************************************************** +** +** 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_CF_P_H +#define QEVENTDISPATCHER_CF_P_H + +#include <QtCore/qabstracteventdispatcher.h> +#include <QtCore/private/qtimerinfo_unix_p.h> +#include <QtPlatformSupport/private/qcfsocketnotifier_p.h> +#include <CoreFoundation/CoreFoundation.h> + +QT_BEGIN_NAMESPACE + +class QEventDispatcherCoreFoundation; + +template <class T = QEventDispatcherCoreFoundation> +class RunLoopSource +{ +public: + typedef void (T::*CallbackFunction) (); + + enum { kHighestPriority = 0 } RunLoopSourcePriority; + + RunLoopSource(T *delegate, CallbackFunction callback) + : m_delegate(delegate), m_callback(callback) + { + CFRunLoopSourceContext context = {}; + context.info = this; + context.perform = RunLoopSource::process; + + m_source = CFRunLoopSourceCreate(kCFAllocatorDefault, kHighestPriority, &context); + Q_ASSERT(m_source); + } + + ~RunLoopSource() + { + CFRunLoopSourceInvalidate(m_source); + CFRelease(m_source); + } + + void addToMode(CFStringRef mode, CFRunLoopRef runLoop = 0) + { + if (!runLoop) + runLoop = CFRunLoopGetCurrent(); + + CFRunLoopAddSource(runLoop, m_source, mode); + } + + void signal() { CFRunLoopSourceSignal(m_source); } + +private: + static void process(void *info) + { + RunLoopSource *self = static_cast<RunLoopSource *>(info); + ((self->m_delegate)->*(self->m_callback))(); + } + + T *m_delegate; + CallbackFunction m_callback; + CFRunLoopSourceRef m_source; +}; + +template <class T = QEventDispatcherCoreFoundation> +class RunLoopObserver +{ +public: + typedef void (T::*CallbackFunction) (CFRunLoopActivity activity); + + RunLoopObserver(T *delegate, CallbackFunction callback, CFOptionFlags activities) + : m_delegate(delegate), m_callback(callback) + { + CFRunLoopObserverContext context = {}; + context.info = this; + + m_observer = CFRunLoopObserverCreate(kCFAllocatorDefault, activities, true, 0, process, &context); + Q_ASSERT(m_observer); + } + + ~RunLoopObserver() + { + CFRunLoopObserverInvalidate(m_observer); + CFRelease(m_observer); + } + + void addToMode(CFStringRef mode, CFRunLoopRef runLoop = 0) + { + if (!runLoop) + runLoop = CFRunLoopGetCurrent(); + + CFRunLoopAddObserver(runLoop, m_observer, mode); + } + +private: + static void process(CFRunLoopObserverRef, CFRunLoopActivity activity, void *info) + { + RunLoopObserver *self = static_cast<RunLoopObserver *>(info); + ((self->m_delegate)->*(self->m_callback))(activity); + } + + T *m_delegate; + CallbackFunction m_callback; + CFRunLoopObserverRef m_observer; +}; + +class QEventDispatcherCoreFoundation : public QAbstractEventDispatcher +{ + Q_OBJECT + +public: + explicit QEventDispatcherCoreFoundation(QObject *parent = 0); + ~QEventDispatcherCoreFoundation(); + + bool processEvents(QEventLoop::ProcessEventsFlags flags); + bool hasPendingEvents(); + + void registerSocketNotifier(QSocketNotifier *notifier); + void unregisterSocketNotifier(QSocketNotifier *notifier); + + void registerTimer(int timerId, int interval, Qt::TimerType timerType, QObject *object); + bool unregisterTimer(int timerId); + bool unregisterTimers(QObject *object); + QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const; + + int remainingTime(int timerId); + + void wakeUp(); + void interrupt(); + void flush(); + +private: + bool m_interrupted; + + RunLoopSource<> m_postedEventsRunLoopSource; + RunLoopSource<> m_blockingTimerRunLoopSource; + + RunLoopObserver<> m_awakeAndBlockObserver; + + QTimerInfoList m_timerInfoList; + CFRunLoopTimerRef m_runLoopTimerRef; + + QCFSocketNotifier m_cfSocketNotifier; + + void processPostedEvents(); + void processTimers(); + + void maybeStartCFRunLoopTimer(); + void maybeStopCFRunLoopTimer(); + + void handleRunLoopActivity(CFRunLoopActivity activity); + + static void nonBlockingTimerRunLoopCallback(CFRunLoopTimerRef, void *info); +}; + +QT_END_NAMESPACE + +#endif // QEVENTDISPATCHER_CF_P_H |