/*

* Copyright (c) 2005-2006 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:  Plugin state machine implementation

*

*/

#ifndef C_AIPLUGINSTATEMACHINEIMPL_H

#define C_AIPLUGINSTATEMACHINEIMPL_H

#include <e32base.h>

#include <aicontentpublisher.h>

#include "aipluginstatemachine.h"

#include "aistatealive.h"

#include "aistatesuspended.h"

#include "aistateidle.h"

class MAiPluginStateControl;

class MAiPluginState;

/**

 * Plugin state machine implementation.

 * 

 *  @since S60 3.2

 */

NONSHARABLE_CLASS( CAiPluginStateMachine ) : public CBase,

                                             public MAiPluginStateMachine

    {

public: // Constructor 

    CAiPluginStateMachine( MAiPluginStateResources& aPluginStateResource,                           

                           CAiContentPublisher& aPlugin );

public: // from MAiPluginStateMachine

    TBool StateVariable( TAiStateVariable aStateVariable );

    TAiTransitionReason TranslateReason( TAiStateChanges aStateChange );

    void RestartSuspendTimer();

    void SwitchToState( TAiState aState, TAiStateChanges aStateChange );

    CAiContentPublisher& Plugin() const;

    void ChangePluginState( TAiTransitionReason aReason,                

                            void (CAiContentPublisher::*aStateChangeMethod)(TAiTransitionReason) );

public: // new methods

    TBool HandleEvent( TAiStateChanges aStateChange );

private: // data

    /**

     * Alive master state.

     */

    TAiStateAlive iAlive;

    /**

     * Suspended state.

     */

    TAiStateSuspended iSuspended;

    /**

     * Idle master state.

     */

    TAiStateIdle iIdle;

    /**

     * Pointer to current state.

     * Not owned.

     */

    MAiPluginState* iCurrentState;

    /**

     * Pointer to parent state machine.

     * Not owned.

     */

    MAiPluginStateResources& iPluginStateResource;

    /**

     * Pointer to managed plugin.

     * Not owned.

     */

    CAiContentPublisher& iPlugin;    

    /**

     * Online sub-state     

     */    

    TBool iOnline;

    };

#endif // C_AIPLUGINSTATEMACHINEIMPL_H