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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeventdispatcher_glib_qws_p.h"
#include "qapplication.h"
#include "qplatformdefs.h"
#include "qapplication.h"
#include "private/qwscommand_qws_p.h"
#include "qwsdisplay_qws.h"
#include "qwsevent_qws.h"
#include "qwindowsystem_qws.h"
#include <glib.h>
QT_BEGIN_NAMESPACE
// from qapplication_qws.cpp
extern QWSDisplay* qt_fbdpy; // QWS `display'
//from qwindowsystem_qws.cpp
extern QList<QWSCommand*> *qt_get_server_queue();
struct GQWSEventSource
{
GSource source;
QEventLoop::ProcessEventsFlags flags;
QWSEventDispatcherGlib *q;
QWSEventDispatcherGlibPrivate *d;
};
class QWSEventDispatcherGlibPrivate : public QEventDispatcherGlibPrivate
{
Q_DECLARE_PUBLIC(QWSEventDispatcherGlib)
public:
QWSEventDispatcherGlibPrivate();
GQWSEventSource *qwsEventSource;
QList<QWSEvent*> queuedUserInputEvents;
};
static gboolean qwsEventSourcePrepare(GSource *s, gint *timeout)
{
if (timeout)
*timeout = -1;
GQWSEventSource *source = reinterpret_cast<GQWSEventSource *>(s);
return qt_fbdpy->eventPending() || !source->d->queuedUserInputEvents.isEmpty()
|| !qt_get_server_queue()->isEmpty() ;
}
static gboolean qwsEventSourceCheck(GSource *s)
{
GQWSEventSource *source = reinterpret_cast<GQWSEventSource *>(s);
return qt_fbdpy->eventPending() || !source->d->queuedUserInputEvents.isEmpty()
|| !qt_get_server_queue()->isEmpty() ;
}
static gboolean qwsEventSourceDispatch(GSource *s, GSourceFunc callback, gpointer user_data)
{
GQWSEventSource *source = reinterpret_cast<GQWSEventSource *>(s);
//??? ulong marker = XNextRequest(X11->display);
do {
QWSEvent *event;
if (!(source->flags & QEventLoop::ExcludeUserInputEvents)
&& !source->d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = source->d->queuedUserInputEvents.takeFirst();
} else if (qt_fbdpy->eventPending()) {
event = qt_fbdpy->getEvent();
if (source->flags & QEventLoop::ExcludeUserInputEvents) {
// queue user input events
if (event->type == QWSEvent::Mouse || event->type == QWSEvent::Key) {
source->d->queuedUserInputEvents.append(event);
continue;
}
}
} else {
// no event to process
break;
}
// send through event filter
if (source->q->filterEvent(event)) {
delete event;
continue;
}
bool ret = qApp->qwsProcessEvent(event) == 1;
delete event;
if (ret) {
return true;
}
} while (qt_fbdpy->eventPending());
if (callback)
callback(user_data);
return true;
}
static GSourceFuncs qwsEventSourceFuncs = {
qwsEventSourcePrepare,
qwsEventSourceCheck,
qwsEventSourceDispatch,
NULL,
NULL,
NULL
};
QWSEventDispatcherGlibPrivate::QWSEventDispatcherGlibPrivate()
{
qwsEventSource = reinterpret_cast<GQWSEventSource *>(g_source_new(&qwsEventSourceFuncs,
sizeof(GQWSEventSource)));
g_source_set_can_recurse(&qwsEventSource->source, true);
qwsEventSource->flags = QEventLoop::AllEvents;
qwsEventSource->q = 0;
qwsEventSource->d = 0;
g_source_attach(&qwsEventSource->source, mainContext);
}
QWSEventDispatcherGlib::QWSEventDispatcherGlib(QObject *parent)
: QEventDispatcherGlib(*new QWSEventDispatcherGlibPrivate, parent)
{
}
QWSEventDispatcherGlib::~QWSEventDispatcherGlib()
{
Q_D(QWSEventDispatcherGlib);
g_source_destroy(&d->qwsEventSource->source);
d->qwsEventSource = 0;
}
bool QWSEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QWSEventDispatcherGlib);
QEventLoop::ProcessEventsFlags saved_flags = d->qwsEventSource->flags;
d->qwsEventSource->flags = flags;
bool returnValue = QEventDispatcherGlib::processEvents(flags);
d->qwsEventSource->flags = saved_flags;
return returnValue;
}
void QWSEventDispatcherGlib::startingUp()
{
Q_D(QWSEventDispatcherGlib);
d->qwsEventSource->q = this;
d->qwsEventSource->d = d;
}
QT_END_NAMESPACE
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