/*

* 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:   

*

*/

#ifndef CMCENATSIPSTATEMACHINE_H

#define CMCENATSIPSTATEMACHINE_H

#include <e32base.h>

#include "mcesrv.h"

#include "mcenatstate.h"

#include "mceclientserver.h"

#include "mcedefs.h"

//  FORWARD DECLARATION

class TMceNatStateTransitionEvent;

/**

*  MCE SIP state machine

*

*  @lib 

*  @since

*/

class CMceNatSipStateMachine : public CBase

	{

public: // Constructors and destructor

	/**

	* Two-phased constructor.

	*/

	static CMceNatSipStateMachine* NewL();

	/**

	* Two-phased constructor.

	*/

	static CMceNatSipStateMachine* NewLC();

	/**

	* Destructor.

	*/

	~CMceNatSipStateMachine();

public: //New

	/**

	* return a state by index

	* @param aNewState next state

	*/

    void NewStateL( TMceNatStateTransitionEvent& aEvent,

                    TMceNatStateIndex aNewState );

	/**

	* processes message

	* @param aEvent event

	*/

    void ProcessL( TMceNatStateTransitionEvent& aEvent );

	/**

	* checks if event is accepted by current state.

	* @param aEvent event

	*/

    TBool Accept( TMceNatStateTransitionEvent& aEvent );

	/**

	* returns the current state index.

	* @return state index, if not found KErrNotFound returned

	*/

    TInt State() const;

	/**

	* Sets current state as Idle.

	*/

    void ErrorOccurred();

private:

	CMceNatSipStateMachine();

	void ConstructL();

private: // Data

    // Current state index

    TMceNatStateIndex iCurrentState;

    // Array containing all state - objects.

    RPointerArray<CMceNatState> iStates;

	//definitions for unit testing

	MCESRV_UT_DEFINITIONS

	};

#endif // CMCENATSIPSTATEMACHINE_H

// End of File