// Copyright (c) 2008-2009 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:

//

#ifndef RS_DISP_CHANGE_NOTIFY

#define RS_DISP_CHANGE_NOTIFY

#include <e32base.h>

#include <graphics/wsdisplaycontrol.h>

class CDisplayPolicy;

class CRsDisplayChangeNotifier : public CActive

	{

	public:

		static CRsDisplayChangeNotifier* NewL(MWsDisplayControl* aNextLevelInterface, CDisplayPolicy* aDisplayPolicy);

		void IssueNotificationRequest();

		void CancelNotificationRequest();

		void RegisterActiveStatus(TRequestStatus &aStatus);

		~CRsDisplayChangeNotifier();

	protected:

		virtual void RunL();

		virtual void DoCancel();

        TInt RunError(TInt aError)

            {

            // will likely lead to inconsistent state and thus reset anyway

            RDebug::Print(_L("CRsDisplayChangeNotifier::RunError( %d )"),aError);

            aError -= (aError);

            return aError; //KErrNone;

            }

	private:

		CRsDisplayChangeNotifier(MWsDisplayControl* aNextLevelInterface, CDisplayPolicy* aDisplayPolicy);

	private:

		TRequestStatus* iWsStatus;

		MWsDisplayControl* iNextLevelInterface;

		CDisplayPolicy* iDisplayPolicy;

	};

class CRsConfigChangeNotifier : public CActive

	{

	public:

		static CRsConfigChangeNotifier* NewL(MWsDisplayControl* aNextLevelInterface);

		void IssueNotificationRequest();

		void CancelNotificationRequest();

		void RegisterActiveStatus(TRequestStatus &aStatus);

		~CRsConfigChangeNotifier();

	protected:

		virtual void RunL();

		virtual void DoCancel();

	private:

		CRsConfigChangeNotifier(MWsDisplayControl* aNextLevelInterface);

	private:

		TRequestStatus* iWsStatus;

		MWsDisplayControl* iNextLevelInterface;

	};

#endif