/*

* Copyright (c) 2006, 2007 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:  These classes define the dps states. 

*

*/

#ifndef DPSSTATE_H

#define DPSSTATE_H

#include <e32base.h>

class CDpsStateMachine;

/**

*   This class is the base classes for all dps state classes.

*   We follow state design pattern here so the state class defines all

*   transactions among states as member functions.

*/

class MDpsState

    {

    public:

        /**

        *   Script sent notification

        */

        virtual void ScriptSentNotifyL(TBool aReply) = 0;

        /**

        *   Script received notification

        */

        virtual void ScriptReceivedNotifyL(TBool aReply) = 0;

        /**

        *   Error handling of the transaction

        */

        virtual void Error(TInt aErr) = 0; 

    };

/**

*   Idle state class

*/

NONSHARABLE_CLASS(TDpsIdleState) : public MDpsState

    {

    public:

        /**

        *   Constructor

        */

        TDpsIdleState(CDpsStateMachine* aStateMachine);

    public:

        /**

        *   @see MDpsState

        */

        void ScriptSentNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */

        void ScriptReceivedNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */    

        void Error(TInt aErr);

    private:

        CDpsStateMachine* iStateMachine;

    };

/**

*   Sending Request state class. Device sending request starts form this state

*/

NONSHARABLE_CLASS(TDpsSendingReqState) : public MDpsState

    {

    public:

        /**

        *   Constructor

        */

        TDpsSendingReqState(CDpsStateMachine* aStateMachine);

    public:

        /**

        *   @see MDpsState

        */    

        void ScriptSentNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */    

        void ScriptReceivedNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */    

        void Error(TInt aErr);        

    private:

        CDpsStateMachine* iStateMachine;

    };

/**

*   Waiting Reply state class (script has been sent)

*/    

NONSHARABLE_CLASS(TDpsWaitingRepState) : public MDpsState

    {

    public:

        /**

        *   Constructor

        */

        TDpsWaitingRepState(CDpsStateMachine* aStateMachine);

    public:

        /**

        *   @see MDpsState

        */    

        void ScriptSentNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */

        void ScriptReceivedNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */    

        void Error(TInt aErr);        

    private:

        CDpsStateMachine* iStateMachine;

    };

/**

*   Sending Reply state class. The device starts replying the host request 

*   in this state.

*/     

NONSHARABLE_CLASS(TDpsSendingRepState) : public MDpsState

    {

    public:

        /**

        *   Constructor

        */

        TDpsSendingRepState(CDpsStateMachine* aStateMachine);

    public:

        /**

        *   @see MDpsState

        */    

        void ScriptSentNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */    

        void ScriptReceivedNotifyL(TBool aReply);

        /**

        *   @see MDpsState

        */    

        void Error(TInt aErr);

    private:

        CDpsStateMachine* iStateMachine;

    };

#endif