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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 tools applications 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 "deviceorientation.h"
#include <QtDBus>
#include <QDebug>
#define ORIENTATION_SERVICE QStringLiteral("com.nokia.SensorService")
#define ORIENTATION_PATH QStringLiteral("/org/maemo/contextkit/Screen/TopEdge")
#define CONTEXT_INTERFACE QStringLiteral("org.maemo.contextkit.Property")
#define CONTEXT_CHANGED QStringLiteral("ValueChanged")
#define CONTEXT_SUBSCRIBE QStringLiteral("Subscribe")
#define CONTEXT_UNSUBSCRIBE QStringLiteral("Unsubscribe")
#define CONTEXT_GET QStringLiteral("Get")
class HarmattanOrientation : public DeviceOrientation
{
Q_OBJECT
public:
HarmattanOrientation()
: o(UnknownOrientation), sensorEnabled(false)
{
resumeListening();
// connect to the orientation change signal
bool ok = QDBusConnection::systemBus().connect(ORIENTATION_SERVICE, ORIENTATION_PATH,
CONTEXT_INTERFACE,
CONTEXT_CHANGED,
this,
SLOT(deviceOrientationChanged(QList<QVariant>,quint64)));
// qDebug() << "connection OK" << ok;
QDBusMessage reply = QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall(ORIENTATION_SERVICE, ORIENTATION_PATH,
CONTEXT_INTERFACE, CONTEXT_GET));
if (reply.type() != QDBusMessage::ErrorMessage) {
QList<QVariant> args;
qvariant_cast<QDBusArgument>(reply.arguments().at(0)) >> args;
deviceOrientationChanged(args, 0);
}
}
~HarmattanOrientation()
{
// unsubscribe from the orientation sensor
if (sensorEnabled)
QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall(ORIENTATION_SERVICE, ORIENTATION_PATH,
CONTEXT_INTERFACE, CONTEXT_UNSUBSCRIBE));
}
inline Orientation orientation() const
{
return o;
}
void setOrientation(Orientation)
{
}
void pauseListening() {
if (sensorEnabled) {
// unsubscribe from the orientation sensor
QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall(ORIENTATION_SERVICE, ORIENTATION_PATH,
CONTEXT_INTERFACE, CONTEXT_UNSUBSCRIBE));
sensorEnabled = false;
}
}
void resumeListening() {
if (!sensorEnabled) {
// subscribe to the orientation sensor
QDBusMessage reply = QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall(ORIENTATION_SERVICE, ORIENTATION_PATH,
CONTEXT_INTERFACE, CONTEXT_SUBSCRIBE));
if (reply.type() == QDBusMessage::ErrorMessage) {
qWarning("Unable to retrieve device orientation: %s", qPrintable(reply.errorMessage()));
} else {
sensorEnabled = true;
}
}
}
private Q_SLOTS:
void deviceOrientationChanged(QList<QVariant> args,quint64)
{
if (args.count() == 0)
return;
Orientation newOrientation = toOrientation(args.at(0).toString());
if (newOrientation != o) {
o = newOrientation;
emit orientationChanged();
}
// qDebug() << "orientation" << args.at(0).toString();
}
private:
static Orientation toOrientation(const QString &nativeOrientation)
{
if (nativeOrientation == QLatin1String("top"))
return Landscape;
else if (nativeOrientation == QLatin1String("left"))
return Portrait;
else if (nativeOrientation == QLatin1String("bottom"))
return LandscapeInverted;
else if (nativeOrientation == QLatin1String("right"))
return PortraitInverted;
return UnknownOrientation;
}
private:
Orientation o;
bool sensorEnabled;
};
DeviceOrientation* DeviceOrientation::instance()
{
static HarmattanOrientation *o = new HarmattanOrientation;
return o;
}
#include "deviceorientation_harmattan.moc"
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