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/****************************************************************************
**
** Copyright (C) 2012 Research In Motion
** Contact: http://www.qt-project.org/
**
** This file is part of the QtSensors 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 "bbguihelper.h"
#include <QtCore/QAbstractEventDispatcher>
#include <QtCore/QCoreApplication>
#include <QtCore/QFile>
#include <QtCore/QTextStream>
#include <bps/navigator.h>
BbGuiHelper::BbGuiHelper(QObject *parent)
: QObject(parent),
m_currentOrientation(0),
m_applicationActive(true)
{
readApplicationActiveState();
readOrientation();
QCoreApplication::eventDispatcher()->installNativeEventFilter(this);
}
BbGuiHelper::~BbGuiHelper()
{
QCoreApplication::eventDispatcher()->removeNativeEventFilter(this);
}
int BbGuiHelper::currentOrientation() const
{
return m_currentOrientation;
}
bool BbGuiHelper::applicationActive() const
{
return m_applicationActive;
}
bool BbGuiHelper::nativeEventFilter(const QByteArray &eventType, void *message, long *result)
{
Q_UNUSED(result);
Q_UNUSED(eventType);
bps_event_t * const event = static_cast<bps_event_t *>(message);
if (event && bps_event_get_domain(event) == navigator_get_domain()) {
const int code = bps_event_get_code(event);
if (code == NAVIGATOR_ORIENTATION) {
const int newOrientation = navigator_event_get_orientation_angle(event);
if (newOrientation != m_currentOrientation) {
m_currentOrientation = newOrientation;
emit orientationChanged();
}
} else if (code == NAVIGATOR_WINDOW_STATE) {
const bool appActive =
(navigator_event_get_window_state(event) == NAVIGATOR_WINDOW_FULLSCREEN);
if (m_applicationActive != appActive) {
m_applicationActive = appActive;
emit applicationActiveChanged();
}
}
}
return false;
}
void BbGuiHelper::readApplicationActiveState()
{
const QLatin1String fileName("/pps/services/navigator/state");
QFile navigatorState(fileName);
if (!navigatorState.open(QFile::ReadOnly))
return;
const QString separator(QLatin1String("::"));
QTextStream stream(&navigatorState);
Q_FOREVER {
const QString line = stream.readLine();
if (line.isNull())
break;
const int separatorPos = line.indexOf(separator);
if (separatorPos != -1) {
const QString key = line.left(separatorPos);
const QString value = line.mid(separatorPos + separator.length());
if (key.endsWith(QLatin1String("fullscreen"))) {
bool ok = false;
const int fullscreenPid = value.toInt(&ok);
if (ok)
m_applicationActive = (fullscreenPid == QCoreApplication::applicationPid());
break;
}
}
}
}
void BbGuiHelper::readOrientation()
{
// There is no API to get the current orientation at the moment.
// Therefore, we assume that the inital orientation that is set in the environment variable
// hasn't changed yet.
// This assumptions don't always hold, but it is the best we got so far.
// The navigator will at least inform us about updates.
const QByteArray orientationText = qgetenv("ORIENTATION");
if (!orientationText.isEmpty())
m_currentOrientation = orientationText.toInt();
}
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