/*

* Copyright (c) 2007 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: 

*       The class implements a VoIP-specific state machine

*

*/

#ifndef CPHONESTATEMACHINEVOIP_H

#define CPHONESTATEMACHINEVOIP_H

//  INCLUDES

#include "cphonestatemachinegsm.h"

// FORWARD DECLARATIONS

class CPhoneCustomizationVoip;

class CPhoneVoIPErrorMessagesHandler;

class CPhoneStateUtilsVoip;

// CLASS DECLARATION

/**

 *  The class implements a VoIP-specific state machine.

 */

NONSHARABLE_CLASS( CPhoneStateMachineVoIP ): public CPhoneStateMachineGSM

    {

    public:

        /**

         * Destructor.

         */

        virtual ~CPhoneStateMachineVoIP();

        /**

         * Creates the only instance of state machine class.

         * @param   aViewCommandHandle  A handle to the Phone UI view.

         * @return  An instance of class CPhoneStateMachine.

         */

        static CPhoneStateMachineVoIP* NewL(

            MPhoneViewCommandHandle* aViewCommandHandle );

        /**

         * Returns active state.

         */

        MPhoneState* State();

        /**

         * Sets voip error message handler.

         * @param   aErrorHandler   Voip error message handler.

         */

        void SetVoipErrorMessageHandler(

            CPhoneVoIPErrorMessagesHandler& aErrorHandler );

        /**

         * Returns error message handler instance.

         * @return  Voip error message handler.

         */

        CPhoneVoIPErrorMessagesHandler& VoipErrorMessageHandler() const;

        /**

         * Returns utility class for voip states.

         * @return  Voip state utils.

         */

        CPhoneStateUtilsVoip& StateUtils();

    private:

        /**

         * By default EPOC constructor is private.

         */

        CPhoneStateMachineVoIP(

            MPhoneViewCommandHandle* aViewCommandHandle );

        /**

         * ConstructL()

         */

        void ConstructL();

    private: // Data

        /**

         * Voip customization.

         * Own.

         */

        CPhoneCustomizationVoip* iVoipCustomization;

        /**

         * Voip error message handler.

         * Now own.

         */

        CPhoneVoIPErrorMessagesHandler* iVoipErrorMessageHandler;

        /**

         * Voip state utils.

         * Own.

         */

        CPhoneStateUtilsVoip* iStateUtils;

    };

#endif      // CPHONESTATEMACHINEVOIP_H

// End of File