/*

* 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: 

*     Base class for handling key events.

*

*/

#ifndef __CPHONESYSTEMEVENTHANDLER_H

#define __CPHONESYSTEMEVENTHANDLER_H

//  INCLUDES

#include <e32base.h>

#include "mphonesystemeventhandler.h"

#include "mphonepubsubobserver.h"

#include "mphonecenrepobserver.h"

// FORWARD DECLARATIONS

class MPhoneStateMachine;

/**

* Transforms system events to be sent to the states

*/

class CPhoneSystemEventHandler : 

    public CBase, 

    public MPhoneSystemEventHandler,

    public MPhonePubSubObserver,

    public MPhoneCenRepObserver

    {

    public:

        /**

        * Two-phased constructor.

        */

        static CPhoneSystemEventHandler* NewL( 

            MPhoneStateMachine* aStateMachine );

        /**

        * Destructor.

        */

        virtual ~CPhoneSystemEventHandler();

    public: // From MPhoneSystemEvents

        void HandleSystemEventL( const TWsEvent& aEvent );

        void HandleForegroundEventL( TBool aForeground );

        void HandlePhoneForegroundEventL();

        void HandleIdleForegroundEventL();

        void HandleEnvironmentChangeL( const TInt aChanges );

        void HandlePhoneStartupL();

        void HandlePhoneFocusLostEventL();

        void HandleKeyLockEnabled( TBool aKeylockEnabled );

    public: // From MPhonePubSubObserver

        /**

        * This function is called when there is property value change.

        * @param aCategory Category of the property

        * @param aKey Property key that is changed

        * @param aValue New property value

        */

        virtual void HandlePropertyChangedL( 

            const TUid& aCategory,

            const TUint aKey,

            const TInt aValue );

    public: // From MPhoneCenRepObserver

        /**

        * Handle the change of the setting from Central Repository

        * @param aUid identifing the central repository UID.

        * @param aId central repository ID.

        */

        virtual void HandleCenRepChangeL( 

            const TUid& aUid,

            const TUint aId );

    private:

        /**

        * By default EPOC constructor is private.

        */

        void ConstructL();

        /**

        * C++ default constructor.

        */

        CPhoneSystemEventHandler( MPhoneStateMachine* aStateMachine );

    private:  // Data

        /**

        * State machine

        */

        MPhoneStateMachine* iStateMachine;

    };

#endif      // __CPHONESYSTEMEVENTHANDLER_H   

// End of File