/*

* Copyright (c) 2007-2009 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          : DialogStateBase.h

* Part of       : SIPDialogs

* Version       : SIP/6.0 

*

*/

/**

 @internalComponent

*/

#ifndef TDIALOGSTATEBASE_H

#define TDIALOGSTATEBASE_H

#include <e32base.h>

#include "SipStackServerDefs.h"

#include "sipinternalstates.h"

#include "_sipcodecdefs.h"

class TSIPTransportParams;

class CSIPRequest;

class CSIPResponse;

class CURIContainer;

class CTransactionItemBase;

class MDialogContext;

class TDialogStateBase

	{

public:

    virtual ~TDialogStateBase();

	virtual const TDesC8& Name () const = 0;

    virtual TBool RequestsWithinDialogAllowed () const;

    virtual TBool Accept (CSIPRequest& aRequest) const;

	virtual void SendL (TTransactionId& aTransactionId,

						CSIPRequest* aRequest,

						CTransactionItemBase& aTransactionItem,

						CURIContainer& aRemoteTarget) = 0;

	virtual void SendL (CTransactionItemBase& aTransactionItem,

						CSIPResponse* aResponse) = 0;

	virtual void ReceiveL (TTransactionId aTransactionId,

						   CSIPRequest* aRequest) = 0;

	virtual void ReceiveL (CTransactionItemBase& aTransactionItem,

						   CSIPResponse* aResponse) = 0;

	virtual void EndTransaction (CTransactionItemBase& aTransactionItem,

                                 TInt aReason) = 0;

    virtual void GetState (CSIPInternalStates::TState& aState) = 0;

protected:

    TDialogStateBase (MDialogContext& aDialog);

    void PassToOwnerL (CTransactionItemBase& aTransactionItem,

                       CSIPResponse* aResponse);

    void PassToOwnerL (TTransactionId aTransactionId,

                       CSIPRequest* aRequest);

    TInt PassToOwner (CTransactionItemBase& aTransactionItem,

                      TInt aErr);

    void PassToOwnerL (CTransactionItemBase& aTransactionItem,

                       TInt aErr);

    MDialogContext& iDialog;

private: // For testing purposes

	UNIT_TEST(CDialogStateBaseTest)

	};

#endif // TDIALOGSTATEBASE_H

// End of File