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/***************************************************************************
**
** Copyright (C) 2011 - 2012 Research In Motion
** Contact: http://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqnxnavigatoreventnotifier.h"
#include "qqnxnavigatoreventhandler.h"
#include <QtCore/QByteArray>
#include <QtCore/QDebug>
#include <QtCore/QList>
#include <QtCore/QSocketNotifier>
#include <QtCore/private/qcore_unix_p.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#if defined(QQNXNAVIGATOREVENTNOTIFIER_DEBUG)
#define qNavigatorEventNotifierDebug qDebug
#else
#define qNavigatorEventNotifierDebug QT_NO_QDEBUG_MACRO
#endif
static const char *navigatorControlPath = "/pps/services/navigator/control";
static const int ppsBufferSize = 4096;
QT_BEGIN_NAMESPACE
QQnxNavigatorEventNotifier::QQnxNavigatorEventNotifier(QQnxNavigatorEventHandler *eventHandler, QObject *parent)
: QObject(parent),
m_fd(-1),
m_readNotifier(0),
m_eventHandler(eventHandler)
{
}
QQnxNavigatorEventNotifier::~QQnxNavigatorEventNotifier()
{
delete m_readNotifier;
// close connection to navigator
if (m_fd != -1)
close(m_fd);
qNavigatorEventNotifierDebug("navigator event notifier stopped");
}
void QQnxNavigatorEventNotifier::start()
{
qNavigatorEventNotifierDebug("navigator event notifier started");
// open connection to navigator
errno = 0;
m_fd = open(navigatorControlPath, O_RDWR);
if (m_fd == -1) {
qNavigatorEventNotifierDebug() << "failed to open navigator pps:"
<< strerror(errno);
return;
}
m_readNotifier = new QSocketNotifier(m_fd, QSocketNotifier::Read);
connect(m_readNotifier, SIGNAL(activated(int)), this, SLOT(readData()));
}
void QQnxNavigatorEventNotifier::parsePPS(const QByteArray &ppsData, QByteArray &msg, QByteArray &dat, QByteArray &id)
{
qNavigatorEventNotifierDebug() << "data=" << ppsData;
// tokenize pps data into lines
QList<QByteArray> lines = ppsData.split('\n');
// validate pps object
if (Q_UNLIKELY(lines.empty() || lines.at(0) != "@control"))
qFatal("QQNX: unrecognized pps object, data=%s", ppsData.constData());
// parse pps object attributes and extract values
for (int i = 1; i < lines.size(); ++i) {
// tokenize current attribute
const QByteArray &attr = lines.at(i);
qNavigatorEventNotifierDebug() << "attr=" << attr;
int firstColon = attr.indexOf(':');
if (firstColon == -1) {
// abort - malformed attribute
continue;
}
int secondColon = attr.indexOf(':', firstColon + 1);
if (secondColon == -1) {
// abort - malformed attribute
continue;
}
QByteArray key = attr.left(firstColon);
QByteArray value = attr.mid(secondColon + 1);
qNavigatorEventNotifierDebug() << "key=" << key;
qNavigatorEventNotifierDebug() << "val=" << value;
// save attribute value
if (key == "msg")
msg = value;
else if (key == "dat")
dat = value;
else if (key == "id")
id = value;
else
qFatal("QQNX: unrecognized pps attribute, attr=%s", key.constData());
}
}
void QQnxNavigatorEventNotifier::replyPPS(const QByteArray &res, const QByteArray &id, const QByteArray &dat)
{
// construct pps message
QByteArray ppsData = "res::";
ppsData += res;
ppsData += "\nid::";
ppsData += id;
if (!dat.isEmpty()) {
ppsData += "\ndat::";
ppsData += dat;
}
ppsData += "\n";
qNavigatorEventNotifierDebug() << "reply=" << ppsData;
// send pps message to navigator
errno = 0;
int bytes = write(m_fd, ppsData.constData(), ppsData.size());
if (Q_UNLIKELY(bytes == -1))
qFatal("QQNX: failed to write navigator pps, errno=%d", errno);
}
void QQnxNavigatorEventNotifier::handleMessage(const QByteArray &msg, const QByteArray &dat, const QByteArray &id)
{
qNavigatorEventNotifierDebug() << "msg=" << msg << ", dat=" << dat << ", id=" << id;
// check message type
if (msg == "orientationCheck") {
const bool response = m_eventHandler->handleOrientationCheck(dat.toInt());
// reply to navigator that (any) orientation is acceptable
replyPPS(msg, id, response ? "true" : "false");
} else if (msg == "orientation") {
m_eventHandler->handleOrientationChange(dat.toInt());
replyPPS(msg, id, "");
} else if (msg == "SWIPE_DOWN") {
m_eventHandler->handleSwipeDown();
} else if (msg == "exit") {
m_eventHandler->handleExit();
} else if (msg == "windowActive") {
m_eventHandler->handleWindowGroupActivated(dat);
} else if (msg == "windowInactive") {
m_eventHandler->handleWindowGroupDeactivated(dat);
}
}
void QQnxNavigatorEventNotifier::readData()
{
qNavigatorEventNotifierDebug("reading navigator data");
// allocate buffer for pps data
char buffer[ppsBufferSize];
// attempt to read pps data
errno = 0;
int bytes = qt_safe_read(m_fd, buffer, ppsBufferSize - 1);
if (Q_UNLIKELY(bytes == -1))
qFatal("QQNX: failed to read navigator pps, errno=%d", errno);
// check if pps data was received
if (bytes > 0) {
// ensure data is null terminated
buffer[bytes] = '\0';
// process received message
QByteArray ppsData(buffer);
QByteArray msg;
QByteArray dat;
QByteArray id;
parsePPS(ppsData, msg, dat, id);
handleMessage(msg, dat, id);
}
}
QT_END_NAMESPACE
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