/****************************************************************************

**

** 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 <e32base.h>

#include <sensrvchannelfinder.h>

#include <sensrvdatalistener.h>

#include <sensrvchannel.h>

#include <sensrvorientationsensor.h>

class SymbianOrientation : public DeviceOrientation, public MSensrvDataListener

{

    Q_OBJECT

public:

    SymbianOrientation()

        : DeviceOrientation(), m_current(UnknownOrientation), m_sensorChannel(0)

    {

        TRAP_IGNORE(initL());

        if (!m_sensorChannel)

            qWarning("No valid sensors found.");

    }

    ~SymbianOrientation()

    {

        if (m_sensorChannel) {

            m_sensorChannel->StopDataListening();

            m_sensorChannel->CloseChannel();

            delete m_sensorChannel;

        }

    }

    void initL()

    {

        CSensrvChannelFinder *channelFinder = CSensrvChannelFinder::NewLC();

        RSensrvChannelInfoList channelInfoList;

        CleanupClosePushL(channelInfoList);

        TSensrvChannelInfo searchConditions;

        searchConditions.iChannelType = KSensrvChannelTypeIdOrientationData;

        channelFinder->FindChannelsL(channelInfoList, searchConditions);

        for (int i = 0; i < channelInfoList.Count(); ++i) {

            TRAPD(error, m_sensorChannel = CSensrvChannel::NewL(channelInfoList[i]));

            if (!error)

                TRAP(error, m_sensorChannel->OpenChannelL());

            if (!error) {

                TRAP(error, m_sensorChannel->StartDataListeningL(this, 1, 1, 0));

                break;

           }

            if (error) {

                delete m_sensorChannel;

                m_sensorChannel = 0;

            }

        }

        channelInfoList.Close();

        CleanupStack::Pop(&channelInfoList);

        CleanupStack::PopAndDestroy(channelFinder);

    }

    Orientation orientation() const

    {

        return m_current;

    }

   void setOrientation(Orientation) { }

private:

    DeviceOrientation::Orientation m_current;

    CSensrvChannel *m_sensorChannel;

    void DataReceived(CSensrvChannel &channel, TInt count, TInt dataLost)

    {

        if (channel.GetChannelInfo().iChannelType == KSensrvChannelTypeIdOrientationData) {

            TSensrvOrientationData data;

            for (int i = 0; i < count; ++i) {

                TPckgBuf<TSensrvOrientationData> dataBuf;

                channel.GetData(dataBuf);

                data = dataBuf();

                Orientation o = UnknownOrientation;

                switch (data.iDeviceOrientation) {

                case TSensrvOrientationData::EOrientationDisplayUp:

                    o = Portrait;

                    break;

                case TSensrvOrientationData::EOrientationDisplayRightUp:

                    o = Landscape;

                    break;

                case TSensrvOrientationData::EOrientationDisplayLeftUp:

                case TSensrvOrientationData::EOrientationDisplayDown:

                case TSensrvOrientationData::EOrientationUndefined:

                case TSensrvOrientationData::EOrientationDisplayUpwards:

                case TSensrvOrientationData::EOrientationDisplayDownwards:

                default:

                    break;

                }

                if (m_current != o && o != UnknownOrientation) {

                    m_current = o;

                    emit orientationChanged();

                }

           }

        }

    }

   void DataError(CSensrvChannel& /* channel */, TSensrvErrorSeverity /* error */)

   {

   }

   void GetDataListenerInterfaceL(TUid /* interfaceUid */, TAny*& /* interface */)

   {

   }

};

DeviceOrientation* DeviceOrientation::instance()

{

    static SymbianOrientation *o = 0;

    if (!o)

        o = new SymbianOrientation;

    return o;

}

#include "deviceorientation_symbian.moc"