/*

* Copyright (c) 2002-2005 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: Declaration of CPhoneHandlerDTMF class.

*

*/

#ifndef CPHONEHANDLERDTMF_H

#define CPHONEHANDLERDTMF_H

//  INCLUDES

#include "phonehandlercallbase.h" 

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class CPhoneHandlerControl;

// CLASS DECLARATION

/**

*  Handles DTMF tone. 

*

*  @lib PhoneCmdHandler

*  @since S60 3.1

*/

NONSHARABLE_CLASS( CPhoneHandlerDTMF ) : public CPhoneHandlerCallBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CPhoneHandlerDTMF* NewL(  

            CPhoneHandlerControl& aControl,

            TRemConExtCallHandlingApiOperationId aOperation 

                = ERemConExtGenerateDTMF

            );

        /**

        * Destructor.

        */

        virtual ~CPhoneHandlerDTMF();

    public: // New functions

    public: // Functions from base classes

        /**

        * From MPhoneHandlerService. Starts processing service.

        * @since S60 3.1

        * @return void

        */

        void Process();

        /**

        * From MPhoneHandlerService. Deletes service.

        * @since S60 3.1

        * @return void

        */

        void Delete();

        /**

        * From MPhoneHandlerObserver. Notifies when asynchronous request has 

        * been completed.

        * @since S60 3.1

        * @param aError request error code

        * @return void

        */

        void RequestCompleted( const TInt aError );

    protected:  // New functions

    protected:  // Functions from base classes

    private:

        /**

        * C++ default constructor.

        */

        CPhoneHandlerDTMF( CPhoneHandlerControl& aControl,

                           TRemConExtCallHandlingApiOperationId aOperation );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    public:     // Data

    protected:  // Data

    private:    // Data

        // reference to control

        CPhoneHandlerControl& iControl;

        // iOperation is used to give response to exact RemConExtensionApi

        // command

        TRemConExtCallHandlingApiOperationId iOperation;

    public:     // Friend classes

    protected:  // Friend classes

    private:    // Friend classes

    };

#endif      // CPHONEHANDLERDTMF_H   

// End of File