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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "deviceorientation.h"
+#include <QtDBus>
+#include <QDebug>
+
+#define ORIENTATION_SERVICE "com.nokia.SensorService"
+#define ORIENTATION_PATH "/org/maemo/contextkit/Screen/TopEdge"
+#define CONTEXT_INTERFACE "org.maemo.contextkit.Property"
+#define CONTEXT_CHANGED "ValueChanged"
+#define CONTEXT_SUBSCRIBE "Subscribe"
+#define CONTEXT_UNSUBSCRIBE "Unsubscribe"
+#define CONTEXT_GET "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 == "top")
+ return Landscape;
+ else if (nativeOrientation == "left")
+ return Portrait;
+ else if (nativeOrientation == "bottom")
+ return LandscapeInverted;
+ else if (nativeOrientation == "right")
+ return PortraitInverted;
+ return UnknownOrientation;
+ }
+
+private:
+ Orientation o;
+ bool sensorEnabled;
+};
+
+DeviceOrientation* DeviceOrientation::instance()
+{
+ static HarmattanOrientation *o = new HarmattanOrientation;
+ return o;
+}
+
+#include "deviceorientation_harmattan.moc"