/*

* Copyright (c) 2009 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:  Response dialog's custom control implementation

*

*/

#ifndef CMRSYSTEMNOTIFIER_H

#define CMRSYSTEMNOTIFIER_H

#include <e32base.h>

class CEnvironmentChangeNotifier;

class CESMRFieldEventQueue;

/**

 * CMRSystemNotifier listen system events and sends MRUI events.

 */

NONSHARABLE_CLASS( CMRSystemNotifier ) : public CBase

    {

public: // Contstruction and destruction

    /**

     * Creates and initialzes new CMRSystemNotifier object.

     * Ownership is transferred to caller.

     * @param aEventQueue Reference to event queue

     */

    static CMRSystemNotifier* NewL( 

            CESMRFieldEventQueue& aEventQueue );

    /**

     * C++ destructor

     */

    ~CMRSystemNotifier();

    /**

     * Starts system notifier

     */

    void StartL();

    /**

     * Stops system notifier

     */

    void Stop();

private: // Implementation

    CMRSystemNotifier( CESMRFieldEventQueue& aEventQueue );

    void ConstructL();

    static TInt EnvChangeCallbackL( TAny* aThisPtr );

    void DoEnvChangeL();

private: // Data

    /// Own: System notifier

    CEnvironmentChangeNotifier* iSystemNotifier;

    /// Ref: Reference to event queue

    CESMRFieldEventQueue& iEventQueue;

    };

#endif // CMRSYSTEMNOTIFIER_H