/*

 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#include "snsrdisplaycontrolclient.h"

#include "snsrdisplaycontrolcommon.h"

// =========== CONSTANTS ===========

// ======== LOCAL FUNCTIONS ========

// -----------------------------------------------------------------------------

// CreateServerProcess

// Static function to create the server process.

// -----------------------------------------------------------------------------

//

static TInt CreateServerProcess()

    {

    TInt err( KErrNone );

    RProcess server;

    err = server.Create( KSnsrDispCtrlSrvName, KNullDesC, EOwnerThread );

    if ( !err )

        {

        TRequestStatus status;

        server.Rendezvous( status );

        if ( status != KRequestPending )

            {

            server.Kill( 0 ); // Abort startup.

            }

        else

            {

            server.Resume(); // Logon OK - start the server.

            }

        User::WaitForRequest( status ); // Wait for start or death.

        // We can't use the 'exit reason' if the server panicked as this

        // is the panic 'reason' and may be '0' which cannot be distinguished

        // from KErrNone.

        err = ( server.ExitType() == EExitPanic ) ? KErrGeneral

                : status.Int();

        server.Close();

        }

    return err;

    }

// -----------------------------------------------------------------------------

// StartServer

// Static function to start the server.

// -----------------------------------------------------------------------------

//

static TInt StartServer()

    {

    TInt result;

    TFindServer findServer( KSnsrDispCtrlSrvName );

    TFullName name;

    result = findServer.Next( name );

    if ( result != KErrNone )

        {

        // Server not running

        result = CreateServerProcess();

        }

    return result;

    }

// ======== MEMBER FUNCTIONS ========

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C RSnsrDisplayControlClient::RSnsrDisplayControlClient() :

    RSessionBase(), iError( KErrNotReady )

    {

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C TInt RSnsrDisplayControlClient::Open()

    {

    iError = StartServer();

    if ( !iError )

        {

        iError = CreateSession( KSnsrDispCtrlSrvName, Version() );

        }

    if ( !iError )

        {

        iError = ShareAuto();

        }

    return iError;

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C void RSnsrDisplayControlClient::Close()

    {

    RSessionBase::Close();

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C TVersion RSnsrDisplayControlClient::Version() const

    {

    return TVersion( KSnsrDispCtrlSrvVerMajor, 

                     KSnsrDispCtrlSrvVerMinor, 

                     KSnsrDispCtrlSrvVerBuild );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C void RSnsrDisplayControlClient::SetDisplayFullPower()

    {

    if ( !iError )

        {

        TRequestStatus status( KRequestPending );

        SendReceive( ESnsrDispCtrlSrvDisplayFullPower, TIpcArgs(), status );

        User::WaitForRequest( status );

        }

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C void RSnsrDisplayControlClient::SetDisplayLowPower( TInt aStartRow, TInt aEndRow )

    {

    if ( !iError )

        {

        TRequestStatus status( KRequestPending );

        TIpcArgs args( aStartRow, aEndRow );

        SendReceive( ESnsrDispCtrlSrvDisplayLowPower, args, status );

        User::WaitForRequest( status );

        }

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

EXPORT_C void RSnsrDisplayControlClient::SetDisplayOff()

    {

    if ( !iError )

        {

        TRequestStatus status( KRequestPending );

        SendReceive( ESnsrDispCtrlSrvDisplayOff, TIpcArgs(), status );

        User::WaitForRequest( status );

        }

    }