/*

* 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:  Environment observer

*

*/

#ifndef C_AIENVIROMENTCHANGEOBSERVER_H

#define C_AIENVIROMENTCHANGEOBSERVER_H

#include <e32base.h>

#include "aidevicestatusobserver.h"

#include "aiuiframeworkobserver.h"

class MAiStateManager;

class CEnvironmentChangeNotifier;

/**

 * @ingroup group_aifw

 * 

 *  System enviroment change observer.

 * 

 *  @lib aifw

 *  @since S60 3.2

 */

NONSHARABLE_CLASS( CAiEnvironmentChangeObserver ) : public CBase,

                                                   public MAiDeviceStatusObserver

    {

public:

// Construction

    static CAiEnvironmentChangeObserver* NewL( MAiStateManager* aStateManager );

    virtual ~CAiEnvironmentChangeObserver();

// functions from base class CAiEnvironmentChangeObserver

    TAiStateChanges Status();

// new functions

    static TInt EnvironmentChangeCallBack(TAny* aPtr);

private:

// Construction

    CAiEnvironmentChangeObserver();

    void ConstructL( MAiStateManager* aStateManager );

protected: // Data

    /**

     * State manager.

     * Not own.

     */

    MAiStateManager*   iStateManager;

    /**

     * Enviroment change notifier: time, locale and midnight crossover

     * Own.

     */

    CEnvironmentChangeNotifier*                 iEnvironmentChangeNotifier;

    };

#endif // C_AIENVIROMENTCHANGEOBSERVER_H