/*

* Copyright (c) 2004 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:  Implementation of the CVtUiActiveExec class.

*

*/

// INCLUDE FILES

#include    "CVtUiActiveExec.h"

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

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

// CVtUiActiveExec::CVtUiActiveExec

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

//

CVtUiActiveExec::CVtUiActiveExec(

        const TInt aPriority )

    : CActive( aPriority )

    {

    CActiveScheduler::Add( this );

    }

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

// CVtUiActiveExec::~CVtUiActiveExec

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

//

CVtUiActiveExec::~CVtUiActiveExec()

    {

    Cancel();

    }

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

// CVtUiActiveExec::Start

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

//

void CVtUiActiveExec::Start( 

        TInt aStartState, 

        MVtUiActiveExec& aExec )

    {

    Cancel();

    iInitialState = aStartState;

    iCurrentState = aStartState;

    iNextState = aStartState;

    iActiveExec = &aExec;

    TRequestStatus* status = &iStatus;

    User::RequestComplete( status, KErrNone );

    SetActive();

    }

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

// CVtUiActiveExec::InitialState

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

//

TInt CVtUiActiveExec::InitialState() const

    {

    return iInitialState;

    }

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

// CVtUiActiveExec::RequestStatus

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

//

TInt CVtUiActiveExec::RequestStatus() const

    {

    return iStatus.Int();

    }

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

// CVtUiActiveExec::RunL

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

//

void CVtUiActiveExec::RunL()

    {

    User::LeaveIfError( iStatus.Int() );

    TBool synch = ETrue;

    // Execute to the next asynchronous operation.

    while ( synch )

        {

        iCurrentState = iNextState;

        if ( iCurrentState )

            {

            synch = iActiveExec->ActiveExecExecuteL( 

                *this,

                iCurrentState, 

                iNextState, 

                iStatus );

            if ( !synch )

                {

                SetActive();

                }

            }

        else

            {   

            iActiveExec->ActiveExecDone( *this, iInitialState );

            if ( !IsActive() )

                {

                iInitialState = 0;

                }

            synch = EFalse;

            }

        }

    }

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

// CVtUiActiveExec::DoCancel

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

//

void CVtUiActiveExec::DoCancel()

    {

    if ( iActiveExec )

        {

        iActiveExec->ActiveExecCancel( *this, iCurrentState );

        iCurrentState = 0;

        iActiveExec = NULL;

        iInitialState = 0;

        }

    }

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

// CVtUiActiveExec::RunError

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

//

TInt CVtUiActiveExec::RunError( TInt aError )

    {

    if ( iActiveExec->ActiveExecContinue( *this, iCurrentState, aError ) )

        {

        iNextState = iCurrentState;

        TRequestStatus* status = &iStatus;

        User::RequestComplete( status, KErrNone );

        SetActive();

        }

    else

        {

        if ( !IsActive() )

            {

            iInitialState = 0;

            }

        }

    return KErrNone;

    }

//  End of File