/*

* Copyright (c) 2005 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:  observe the backup restore status event

*

*/

// INCLUDE FILES

#include    <e32base.h>

#include    <e32std.h>

#include    <f32file.h>

#include    <sbdefs.h> //for KUidBackupRestoreStatus

#include    "DRMBackupObserver.h"

#include    "DRMRightsServer.h"

/*

#include    <flogger.h>

_LIT( KLogDir, "drm");

_LIT( KLogName, "backup.log");

*/

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES  

// CONSTANTS

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

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

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

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

// CDRMBackupObserver::CDRMBackupObserver

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CDRMBackupObserver::CDRMBackupObserver( CDRMRightsServer& aServer ):

                    CActive(CActive::EPriorityStandard),

                        iServer( aServer )

    {

    CActiveScheduler::Add( this );

    }

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

// CDRMBackupObserver::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CDRMBackupObserver::ConstructL()

    {

    User::LeaveIfError( iProperty.Attach( KUidSystemCategory, conn::KUidBackupRestoreKey ) );

    }

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

// CDRMBackupObserver::NewL

// Two-phased constructor.

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

//

CDRMBackupObserver* CDRMBackupObserver::NewL(CDRMRightsServer& aServer)

    {

    CDRMBackupObserver* self = new( ELeave ) CDRMBackupObserver(aServer);

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CDRMBackupObserver::~CDRMBackupObserver()

    {

    Cancel();

    iProperty.Close();

    }

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

// CDRMBackupObserver::Start

// Start the system agent to listen to the event

// (other items were commented in a header).

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

//

void CDRMBackupObserver::Start()

    {

    Cancel();

    iProperty.Subscribe( iStatus );

    SetActive();

    }

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

// CDRMBackupObserver::RunError

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

//  

TInt CDRMBackupObserver::RunError(TInt aError)

    {

    if( aError != KErrCancel )

        {

        Start();           

        }

    else 

        {

        Cancel();

        iProperty.Close();    

        }

    return KErrNone;

    };

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

// CDRMBackupObserver::RunL

// from CActive

// (other items were commented in a header).

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

//

void CDRMBackupObserver::RunL()

    {

	//RFileLogger::Write(KLogDir, KLogName, EFileLoggingModeAppend, _L8("RunL Observer Called\n\r"));     

    // Resubscribe before processing new value to prevent missing updates

    TInt backupStatus = 0;

    TInt err( iStatus.Int() );

    if (err == KErrNone)

        {

	    //RFileLogger::Write(KLogDir, KLogName, EFileLoggingModeAppend, _L8("RunL Observer Called: Ok\n\r"));    

        Start();

        User::LeaveIfError( iProperty.Get( 

                KUidSystemCategory, 

                conn::KUidBackupRestoreKey, backupStatus ) );

        // Do stuff according to the backup status

        iServer.HandleBackupEventL( backupStatus );

        }

    else if ( err != KErrCancel ) // Ignore all errors except cancel

        {

	    //RFileLogger::Write(KLogDir, KLogName, EFileLoggingModeAppend, _L8("RunL Observer Called: Error\n\r"));         

        Start();

        }

    else // When cancel occurs, stop everything

        {

        User::Leave(KErrCancel);    

        }

    }

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

// CDRMBackupObserver::DoCancel

// From CActive

// (other items were commented in a header).

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

//

void CDRMBackupObserver::DoCancel()

    {

    iProperty.Cancel();

    }

// ========================== OTHER EXPORTED FUNCTIONS =========================

//  End of File