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/****************************************************************************
**
** Copyright (C) 2011 - 2012 Research In Motion <blackberry-qt@qnx.com>
** Contact: http://www.qt-project.org/
**
** This file is part of the QtCore 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.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
// #define QBBSCREENEVENTTHREAD_DEBUG
#include "qbbscreeneventthread.h"
#include "qbbscreeneventhandler.h"
#include <QDebug>
#include <errno.h>
QT_BEGIN_NAMESPACE
QBBScreenEventThread::QBBScreenEventThread(screen_context_t context, QBBScreenEventHandler *eventHandler)
: mContext(context),
mQuit(false),
mEventHandler(eventHandler)
{
}
QBBScreenEventThread::~QBBScreenEventThread()
{
// block until thread terminates
shutdown();
}
void QBBScreenEventThread::injectKeyboardEvent(int flags, int sym, int mod, int scan, int cap)
{
QBBScreenEventHandler::injectKeyboardEvent(flags, sym, mod, scan, cap);
}
void QBBScreenEventThread::injectPointerMoveEvent(int x, int y)
{
mEventHandler->injectPointerMoveEvent(x, y);
}
void QBBScreenEventThread::run()
{
screen_event_t event;
// create screen event
errno = 0;
int result = screen_create_event(&event);
if (result)
qFatal("QBB: failed to create screen event, errno=%d", errno);
#if defined(QBBSCREENEVENTTHREAD_DEBUG)
qDebug() << "QBB: screen event thread started";
#endif
// loop indefinitely
while (!mQuit) {
// block until screen event is available
errno = 0;
result = screen_get_event(mContext, event, -1);
if (result)
qFatal("QBB: failed to get screen event, errno=%d", errno);
// process received event
errno = 0;
int qnxType;
int result = screen_get_event_property_iv(event, SCREEN_PROPERTY_TYPE, &qnxType);
if (result)
qFatal("QBB: failed to query screen event type, errno=%d", errno);
if (qnxType == SCREEN_EVENT_USER) {
// treat all screen user events as shutdown requests
#if defined(QBBSCREENEVENTTHREAD_DEBUG)
qDebug() << "QBB: QNX screen user event";
#endif
mQuit = true;
} else {
mEventHandler->handleEvent(event, qnxType);
}
}
#if defined(QBBSCREENEVENTTHREAD_DEBUG)
qDebug() << "QBB: screen event thread stopped";
#endif
// cleanup
screen_destroy_event(event);
}
void QBBScreenEventThread::shutdown()
{
screen_event_t event;
// create screen event
errno = 0;
int result = screen_create_event(&event);
if (result)
qFatal("QBB: failed to create screen event, errno=%d", errno);
// set the event type as user
errno = 0;
int type = SCREEN_EVENT_USER;
result = screen_set_event_property_iv(event, SCREEN_PROPERTY_TYPE, &type);
if (result)
qFatal("QBB: failed to set screen event type, errno=%d", errno);
// NOTE: ignore SCREEN_PROPERTY_USER_DATA; treat all user events as shutdown events
// post event to event loop so it will wake up and die
errno = 0;
result = screen_send_event(mContext, event, getpid());
if (result)
qFatal("QBB: failed to set screen event type, errno=%d", errno);
// cleanup
screen_destroy_event(event);
#if defined(QBBSCREENEVENTTHREAD_DEBUG)
qDebug() << "QBB: screen event thread shutdown begin";
#endif
// block until thread terminates
wait();
#if defined(QBBSCREENEVENTTHREAD_DEBUG)
qDebug() << "QBB: screen event thread shutdown end";
#endif
}
QT_END_NAMESPACE
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