/*

* Copyright (c) 2004-2009 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:

* Name        : TStateBase.h

* Part of     : NetworkMonitor

* See class definition below.

* Version     : SIP/4.0

*

*/

/**

 @internalComponent

*/

#ifndef __TSTATEBASE_H__

#define __TSTATEBASE_H__

// INCLUDES

#include "MStateModel.h"

class MSIPConnectionContext;

class CUri8;

// CLASS DEFINITION

/**

 * TStateBase implements a state base class

 */

class TStateBase

	{

	protected:	// Constructors and destructor

		/**

		 * Constructor.

		 *

		 * @param aOwner Reference to state model owning this state.

		 * @param aContext Reference to SIP Connection Context (~CSipConnection)

		 */

		TStateBase( MStateModel& aOwner,

					MSIPConnectionContext& aContext );

		/// Virtual destructor (PC-Lint requires this also for a T-class)

		virtual ~TStateBase() {};

	public: // New methods

		virtual void SendL( const TSIPTransportParams& aParams,

		                    CSIPRequest& aRequest,

		                    TBool aForceUDP,

		                    const CUri8* aOutboundProxy,

							const TInetAddr& aRemoteAddr,

							TRequestStatus& aStatus );

 		virtual void SendL( const TSIPTransportParams& aParams,

 		                    CSIPResponse& aResponse,

                   			TTransactionId aId,

							TRequestStatus& aStatus );

		/** 

		* Called by state model when a state is entered

		*

		* @param aError

		*/

		virtual void Enter( TInt aError );

		/// Called by state model when a state is left

		virtual void Exit();

		/*

		 * Called by state model when it receveis a network monitoring

		 * state change notification.

		 *

		 * @param aState

		 * @param aError

		 */

		virtual void NetworkStateChanged(

							MSIPNetworkObserver::TNetworkState aState,

							TInt aError );

	protected: // New methods

		/**

		 *

		 */

		void EnterState( MStateModel::TState aState,

						 TInt aError = KErrNone );

	private: // Constructors

		/// Default constructor. Not implemented.

		TStateBase();

	protected: // Data

		/// Reference to state model owning this state.

		MStateModel& iOwner;

		/// Reference to SIP Connection Context (~CSipConnection)

		MSIPConnectionContext& iContext;

	};

#endif // __TSTATEBASE_H__