/*

* Copyright (c) 2008 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:  State Provider

*

*/

#ifndef _AISTATEPROVIDER_H

#define _AISTATEPROVIDER_H

// System includes

#include <e32base.h>

#include <coemain.h>

#include <hwrmlight.h>

#include <AknsSrvClient.h>

// User includes

#include <aifwstatehandler.h>

#include "aiecomobserver.h"

// Forward declarations

class MAiPSPropertyObserver;

class MAiStateObserver;

class TAiFwPublisherInfo;

// Class declaration

/**

 * State Provider

 * 

 * @ingroup group_aifw

 * @lib aifw.lib

 * @since S60 5.2

 */

NONSHARABLE_CLASS( CAiStateProvider ) : public CBase,

    public MCoeMessageMonitorObserver,

    public MHWRMLightObserver,

    public MAknsSkinChangeObserver,

    public MAiEcomObserver,

    public MAiFwStateHandler

    {

public:    

    // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    static CAiStateProvider* NewL( MAiStateObserver& aObserver ); 

    /**

     * Two-phased constructor. Leaving on stack

     */

    static CAiStateProvider* NewLC( MAiStateObserver& aObserver );         

    /**

     * Destructor

     */

    ~CAiStateProvider();

private:

    // private constructors

    /**

     * 2nd phase constructor

     */

    void ConstructL();

    /**

     * C++ default constructor

     */

    CAiStateProvider( MAiStateObserver& aObserver );         

public:

    // new methods

    /**

     * Start state providing

     * 

     * @since S60 5.2

     * @param aCoeEnv Control environment

     */

    void StartL( CCoeEnv& aCoeEnv );

    /**

     * Stop state providing

     * 

     * @since S60 5.2

     */

    void Stop();

private:

    // from MCoeMessageMonitorObserver

    /**

     * @see MCoeMessageMonitorObserver

     */

    void MonitorWsMessage( const TWsEvent& aEvent );

private:

    // from MHWRMLightObserver

    /**

     * @see MHWRMLightObserver

     */

    void LightStatusChanged( TInt aTarget, 

        CHWRMLight::TLightStatus aStatus );

private:

    // from MAknsSkinChangeObserver

    /**

     * @see MAknsSkinChangeObserver

     */

    void SkinContentChanged();

    /**

     * @see MAknsSkinChangeObserver

     */    

    void SkinConfigurationChanged(

        const TAknsSkinStatusConfigurationChangeReason aReason );

    /**

     * @see MAknsSkinChangeObserver

     */    

    void SkinPackageChanged(

        const TAknsSkinStatusPackageChangeReason aReason );

private:

    // from MAiEcomObserver

    /**

     * @see MAiEcomObserver

     */

    void NotifyEcomRegistryChanged();

private:

    // from MAiFwStateHandler

    /**

     * @see MAiFwStateHandler

     */

    void LoadPlugin( const TAiFwPublisherInfo& aInfo );         

    /**

     * @see MAiFwStateHandler

     */

    void DestroyPlugin( const TAiFwPublisherInfo& aInfo );        

    /**

     * @see MAiFwStateHandler

     */

    void ChangePluginState( TAiFwState aState );

private:

    // new functions

    static TInt BackupRestoreEvent( TAny* aAny );

    static TInt SwiUidListEvent( TAny* aAny );

private:

    // data

    /** ECom observer, owned */

    CAiEcomObserver* iEcomObserver;        

    /** State observer, Not owned */

    MAiStateObserver& iObserver;        

    /** Control environment, Not owned */

    CCoeEnv* iCoeEnv;

    /** Light status observer, Owned */

    CHWRMLight* iLightObserver;

    /** Skin server session, Owned */

    RAknsSrvSession iSkinSrv;

    /** Backup Restore observer, Owned */

    MAiPSPropertyObserver* iBackupRestoreObserver;

    /** Flag to indicate whether state providing is started */

    TBool iStarted;

    /** SWI UID list observer, owned */

    MAiPSPropertyObserver* iSwiUidListObserver;

private:

    // friend classes

#ifdef _AIFW_UNIT_TEST

    friend class UT_AiStateProvider;

#endif    

    };

#endif // _AISTATEPROVIDER_H

// End of file