/*

* 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 C_CSTUNSHAREDSECRETSTATE_H

#define C_CSTUNSHAREDSECRETSTATE_H

// INCLUDES

#include <e32base.h>

// FORWARD DECLARATIONS

class CNATFWUNSAFMessage;

class CSTUNSharedSecret;

// CLASS DECLARATION

/**

 *  Base class for CSTUNSharedSecret's states. 

 */

class CSTUNSharedSecretState : public CBase

    {

    public:

          /**

        * Destructor

        */

        virtual ~CSTUNSharedSecretState();

        /**

        * TLS connection successfully established.

        * @param aContext SharedSecret instance who received the event

        */

        virtual void TlsConnectedL( CSTUNSharedSecret& aContext ) const;

        /**

        * An UNSAF message has been received from the TLS connection.

        * @param aContext SharedSecret instance who received the event

        * @param aMessage incoming message, the ownership is transferred.

        */

        virtual void IncomingMessageL( CSTUNSharedSecret& aContext,

                                       CNATFWUNSAFMessage* aMessage ) const;

        /**

        * TLS connection establishment has failed or 

        * sending or receiving using the connection has failed or

        * there was a leave in TlsConnectedL or IncomingMessageL.

        * @param aContext SharedSecret instance who received the event

        * @param aError a reason for the failure.

        */

        virtual void ErrorOccured( CSTUNSharedSecret& aContext,

                                   TInt aError ) const;

        virtual void TimerExpiredL( CSTUNSharedSecret& aContext ) const;

    protected:

        CSTUNSharedSecretState();

    private:

        CSTUNSharedSecretState( const CSTUNSharedSecretState& aState );

    };

#endif // C_CSTUNSHAREDSECRETSTATE_H