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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeventdispatcher_glib_qpa_p.h"
#include "qguiapplication.h"
#include "qplatformdefs.h"
#include <glib.h>
#include "private/qguiapplication_p.h"
#include <qdebug.h>
QT_BEGIN_NAMESPACE
struct GUserEventSource
{
GSource source;
QPAEventDispatcherGlib *q;
};
static gboolean userEventSourcePrepare(GSource *s, gint *timeout)
{
Q_UNUSED(s)
Q_UNUSED(timeout)
return QWindowSystemInterfacePrivate::windowSystemEventsQueued() > 0;
}
static gboolean userEventSourceCheck(GSource *source)
{
return userEventSourcePrepare(source, 0);
}
static gboolean userEventSourceDispatch(GSource *s, GSourceFunc, gpointer)
{
GUserEventSource * source = reinterpret_cast<GUserEventSource *>(s);
QWindowSystemInterfacePrivate::WindowSystemEvent * event;
while (QWindowSystemInterfacePrivate::windowSystemEventsQueued()) {
event = QWindowSystemInterfacePrivate::getWindowSystemEvent();
if (!event)
break;
// send through event filter
if (source->q->filterEvent(event)) {
delete event;
continue;
}
QGuiApplicationPrivate::processWindowSystemEvent(event);
delete event;
}
return true;
}
static GSourceFuncs userEventSourceFuncs = {
userEventSourcePrepare,
userEventSourceCheck,
userEventSourceDispatch,
NULL,
NULL,
NULL
};
QPAEventDispatcherGlibPrivate::QPAEventDispatcherGlibPrivate(GMainContext *context)
: QEventDispatcherGlibPrivate(context)
{
userEventSource = reinterpret_cast<GUserEventSource *>(g_source_new(&userEventSourceFuncs,
sizeof(GUserEventSource)));
userEventSource->q = 0;
g_source_set_can_recurse(&userEventSource->source, true);
g_source_attach(&userEventSource->source, mainContext);
}
QPAEventDispatcherGlib::QPAEventDispatcherGlib(QObject *parent)
: QEventDispatcherGlib(*new QPAEventDispatcherGlibPrivate, parent)
{
Q_D(QPAEventDispatcherGlib);
d->userEventSource->q = this;
}
QPAEventDispatcherGlib::~QPAEventDispatcherGlib()
{
Q_D(QPAEventDispatcherGlib);
g_source_destroy(&d->userEventSource->source);
g_source_unref(&d->userEventSource->source);
d->userEventSource = 0;
}
bool QPAEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
{
static bool init = false;
if (!init) {
if (QGuiApplicationPrivate::platformIntegration()->createEventLoopIntegration()) {
qWarning("Eventloop integration is not supported by the glib event dispatcher");
qWarning("Use the UNIX event dispatcher by defining environment variable QT_NO_GLIB=1");
}
init = true;
}
return QEventDispatcherGlib::processEvents(flags);
}
QT_END_NAMESPACE
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