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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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 "qeventdispatcher_qws_p.h"
#include "private/qeventdispatcher_unix_p.h"
#ifndef QT_NO_THREAD
# include "qmutex.h"
#endif
#include <errno.h>
QT_BEGIN_NAMESPACE
QT_USE_NAMESPACE
class QEventDispatcherQWSPrivate : public QEventDispatcherUNIXPrivate
{
Q_DECLARE_PUBLIC(QEventDispatcherQWS)
public:
inline QEventDispatcherQWSPrivate()
{ }
QList<QWSEvent*> queuedUserInputEvents;
};
QEventDispatcherQWS::QEventDispatcherQWS(QObject *parent)
: QEventDispatcherUNIX(*new QEventDispatcherQWSPrivate, parent)
{ }
QEventDispatcherQWS::~QEventDispatcherQWS()
{ }
// from qapplication_qws.cpp
extern QWSDisplay* qt_fbdpy; // QWS `display'
//#define ZERO_FOR_THE_MOMENT
bool QEventDispatcherQWS::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherQWS);
// process events from the QWS server
int nevents = 0;
// handle gui and posted events
d->interrupt = false;
QApplication::sendPostedEvents();
while (!d->interrupt) { // also flushes output buffer ###can be optimized
QWSEvent *event;
if (!(flags & QEventLoop::ExcludeUserInputEvents)
&& !d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = d->queuedUserInputEvents.takeFirst();
} else if (qt_fbdpy->eventPending()) {
event = qt_fbdpy->getEvent(); // get next event
if (flags & QEventLoop::ExcludeUserInputEvents) {
// queue user input events
if (event->type == QWSEvent::Mouse || event->type == QWSEvent::Key) {
d->queuedUserInputEvents.append(event);
continue;
}
}
} else {
break;
}
if (filterEvent(event)) {
delete event;
continue;
}
nevents++;
bool ret = qApp->qwsProcessEvent(event) == 1;
delete event;
if (ret) {
return true;
}
}
if (!d->interrupt) {
extern QList<QWSCommand*> *qt_get_server_queue();
if (!qt_get_server_queue()->isEmpty()) {
QWSServer::processEventQueue();
}
if (QEventDispatcherUNIX::processEvents(flags))
return true;
}
return (nevents > 0);
}
bool QEventDispatcherQWS::hasPendingEvents()
{
extern uint qGlobalPostedEventsCount(); // from qapplication.cpp
return qGlobalPostedEventsCount() || qt_fbdpy->eventPending();
}
void QEventDispatcherQWS::startingUp()
{
}
void QEventDispatcherQWS::closingDown()
{
}
void QEventDispatcherQWS::flush()
{
if(qApp)
qApp->sendPostedEvents();
(void)qt_fbdpy->eventPending(); // flush
}
int QEventDispatcherQWS::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
timeval *timeout)
{
return QEventDispatcherUNIX::select(nfds, readfds, writefds, exceptfds, timeout);
}
QT_END_NAMESPACE
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