/*

* 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: Active help object for running an internal operation.

*

*

*/

#ifndef CPOSLMLOCALINTERNALOPACTIVE_H

#define CPOSLMLOCALINTERNALOPACTIVE_H

//  INCLUDES

#include <e32base.h>

// CONSTANTS

// FORWARD DECLARATIONS

class MPosLmLocalInternalOpExecutor;

class CPosLmOperation;

// CLASS DECLARATION

/**

* Active help object for running an internal operation.

*/

NONSHARABLE_CLASS(CPosLmLocalInternalOpActive) : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        * @param aExecutor An internal operation executor.

        * @param aOp An internal operation.

        */

        static CPosLmLocalInternalOpActive* NewL(

        /* IN */        MPosLmLocalInternalOpExecutor& aExecutor,

        /* IN */        CPosLmOperation* aOp

        );

        /**

        * Destructor.

        */

        virtual ~CPosLmLocalInternalOpActive();

     public: // New functions

        /**

        * Performs a single step of the internal operation asynchronously using

        * this active object.

        *

        * @param aClientStatus Client status; will be sent back to the executor

        *   when the asynchronous call to the internal operation completes.

        * @param aClientProgress Client progress; will be sent back to the

        *   executor when the asynchronous call to the internal operation

        *   completes.

        */

        void DoNext(

        /* IN */        TRequestStatus& aClientStatus,

        /* IN */        TReal32& aClientProgress

        );

        /**

        * Performs a single step of the internal operation without using this

        * active object to run it.

        *

        * @param aStatus A request status.

        * @param aProgress Progress of the internal operation.

        */

        void InternalOpNextStep(

        /* IN */        TRequestStatus& aStatus,

        /* IN */        TReal32& aProgress

        );

    public: // Functions from base classes

        /**

        * From CActive.

        *

        * Implements cancellation of an outstanding request.

        */

        void DoCancel();

        /**

        * From CActive.

        *

        * Handles request completion event.

        */

        void RunL();

    private:

        /**

        * C++ default constructor.

        * @param aExecutor An internal operation executor.

        * @param aOp An internal operation.

        */

        CPosLmLocalInternalOpActive(

        /* IN */        MPosLmLocalInternalOpExecutor& aExecutor,

        /* IN */        CPosLmOperation* aOp

        );

        // Prohibit copy constructor if not deriving from CBase.

        CPosLmLocalInternalOpActive(

            const CPosLmLocalInternalOpActive&);

        // Prohibit assigment operator if not deriving from CBase.

        CPosLmLocalInternalOpActive& operator=(

            const CPosLmLocalInternalOpActive&);

    private:    // Data

        // Internal op executor

        MPosLmLocalInternalOpExecutor* iExecutor;

        // Internal op

        CPosLmOperation* iOp;

        TReal32 iProgress;

         // Client status

        TRequestStatus* iClientStatus;

        // Client progress

        TReal32* iClientProgress;

    };

#endif      // CPOSLMLOCALINTERNALOPACTIVE_H

// End of File