/*

* Copyright (c) 2002 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:   Server session class.

*

*/

#ifndef __CNCNSESSION_H__

#define __CNCNSESSION_H__

//  INCLUDES

#include <e32base.h>

//  ENUMERATIONS

enum TNcnSessionPanic

    {

    EPanicNcnRequestActive

    };

// FORWARD DECLARATIONS

class MNcnNotificationObserver;

// CLASS DECLARATION

/**

 * Server session class for handling client messages from

 * NCN Notification API.

 *

 */

class CNcnSession : public CSession2

    {

    public: // Constructor and destructor

       /**

        * Two-phased constructor.

        *

        * @return CNcnSession object

        */

        static CNcnSession* NewL( MNcnNotificationObserver& aObserver );

       /**

        * Destructor.

        */

        ~CNcnSession();

    public: // From CSession2

        void ServiceL( const RMessage2 &aMessage );

    private:

        void ServiceNewInternalMessages1L( const RMessage2& aMessage );

        void ServiceNewInternalMessages2L( const RMessage2& aMessage );        

        void ServiceInternalMarkUnread1L( const RMessage2& aMessage );

        void ServiceInternalMarkUnread2L( const RMessage2& aMessage );

        void ServiceNewMessages1L( const RMessage2& aMessage );

        void ServiceMarkUnread1L( const RMessage2& aMessage );

        void CancelRequest();

        /**

         * Completes and resets a request message, if any.

         * After completion message is reset.

         * @param aError Completion error code.

         */

        void CompleteRequestMessage( TInt aError );

        /**

         * Sets the current request message.

         * @param aMessage

         */

        void SetRequestMessage( const RMessage2& aMessage );

        /**

         * Return ETrue if there is a pending request.

         * @return ETrue if there is a pending request.

         */

        TBool IsRequestPending() const;

        /**

         * Service implementation.

         * @param aMessage Request message.

         */

        void HandleServiceL( const RMessage2& aMessage );

        /**

         * Internal mark unread service implementation.

         * @param aMessage Request message.

         */

        void HandleMarkUnreadServiceL( const RMessage2& aMessage );

        /**

         * Panics the client with specified panic code.

         * @param aMessage The request message.

         * @param aPanic Panic code.

         */

        void PanicClient( const RMessage2& aMessage, TNcnSessionPanic aPanic );

    private:

       /**

        * C++ default constructor.

        */

        CNcnSession( MNcnNotificationObserver& aObserver );

       /**

        *  Constructor, second phase

        */

        void ConstructL();

	private:    // data

	    MNcnNotificationObserver& iObserver;

	    /**

	     * Pointer to request message.

	     */

	    RMessagePtr2 iRequestMessage;

    };

#endif // __CNCNSESSION_H__

// End of File