/*

* Copyright (c) 2010 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:  IETF SIMPLE Protocol implementation for XIMP Framework

*

*/

#ifndef C_CPRESENCEPLUGINCONTACTSTATEHANDLER_H

#define C_CPRESENCEPLUGINCONTACTSTATEHANDLER_H

#include <e32base.h>

class CPresencepluginContactState;

/**

 * States handler

 *

 * @lib presenceplugin.dll

 * @since S60 v5.0

 */

class CPresencePluginContactStateHandler : public CBase

    {

public:

    static CPresencePluginContactStateHandler* NewL();

    /**

     * Destructor.

     */

    virtual ~CPresencePluginContactStateHandler();

    /**

     * Add states to queue

     *

     * @since S60 v5.0

     * @param aState State to add, ownership is transferred.

     */

    void AddStateL( CPresencepluginContactState* aState );

    /**

     * Start State machine.

     * States must be added before

     *

     * @since S60 v5.0

     * @param aStatus Client status

     */

    void Start( TRequestStatus* aStatus );

    /**

     * States are progressed to end

     * or error occured

     *

     * @since S60 v5.0

     * @param aError Possible error

     */

    void Complete( TInt aError );

    /**

     * State getter

     *

     * @since S60 v5.0

     * @return State

     */

    CPresencepluginContactState* State();

    /**

     * Order statehandler to move next state

     *

     * @since S60 v5.0

     */

    void ProgressToNextState();

private:

    CPresencePluginContactStateHandler();

    void HandleNextState();

private: // data

    /**

     * Current state index

     * own.

     */

    TInt iCurrentStateIndex;

    /**

     * States to process

     * own.

     */

    RPointerArray< CPresencepluginContactState > iStateArray;

    /**

     * Client status

     * Not own.

     */

    TRequestStatus* iClientStatus;

    };

#endif // C_CPRESENCEPLUGINCONTACTSTATEHANDLER_H