/*

* Copyright (c) 2005 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: 

*     Describes all possible System events.

*

*/

#ifndef __MPHONESYSTEMEVENTHANDLER_H

#define __MPHONESYSTEMEVENTHANDLER_H

//  INCLUDES

#include <aknappui.h>

// CLASS DECLARATION

/**

*  All possible system events

*/

class MPhoneSystemEventHandler

    {

    public:

        /**

        * Destructor

        */

        virtual ~MPhoneSystemEventHandler(){};

        /**

        * From CEikAppUi. For Idle indicator

        */

        virtual void HandleSystemEventL( const TWsEvent& aEvent ) = 0;

        /**

        * From CAknAppUi, indicates when app ui is on the foreground.

        * @param aForeground It is true if app is on the foreground.

        */

        virtual void HandleForegroundEventL( TBool aForeground ) = 0;

        /**

        * Indicates when the Phone app is in the foreground.

        */

        virtual void HandlePhoneForegroundEventL() = 0;

        /**

        * Indicates when the Idle app is in the foreground.

        */

        virtual void HandleIdleForegroundEventL() = 0;

        /**

        * Indicates when the Phone app is is losing focus.

        */

        virtual void HandlePhoneFocusLostEventL() = 0;

        /**

        * Handle environment changes.

        * @param aChanges environment changes which may be reported by

        *  a change notifier through the RChangeNotifier interface.

        */

        virtual void HandleEnvironmentChangeL( const TInt aChanges ) = 0;

        /**

        * Handles startup of the phone application 

        */

        virtual void HandlePhoneStartupL() = 0;

    };

#endif      // __MPHONESYSTEMEVENTHANDLER_H   

// End of File