sl@0: /**
sl@0: * Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description:
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0: */
sl@0: 
sl@0: #ifndef WS_DISP_CHANGE_NOTIFY
sl@0: #define WS_DISP_CHANGE_NOTIFY
sl@0: 
sl@0: 
sl@0: #include <graphics/wsdisplaycontrol.h>
sl@0: #include <e32base.h>
sl@0: #include <e32cmn.h>
sl@0: #include "EVENT.H"
sl@0: 
sl@0: class CWsDisplayChangeNotifier : public CActive
sl@0: 	{
sl@0: 	public:
sl@0: 		static CWsDisplayChangeNotifier* NewL(MWsDisplayControl* aNextLevelInterface, CScreen *aOwner);
sl@0: 		void IssueNotificationRequest();
sl@0: 		void CancelNotificationRequest();
sl@0: 		~CWsDisplayChangeNotifier();
sl@0: 	protected:
sl@0: 		void ConstructL();
sl@0: 		virtual void RunL();
sl@0: 		virtual void DoCancel();
sl@0: 	private:
sl@0: 		CWsDisplayChangeNotifier(MWsDisplayControl* aNextLevelInterface, CScreen *aOwner);
sl@0: 		TBool IsResListEqual(RArray<MWsDisplayControl::TResolution>& aResListA, RArray<MWsDisplayControl::TResolution>& aResListB);
sl@0: 		
sl@0: 		TRequestStatus* iRsStatus;
sl@0: 		MWsDisplayControl* iNextLevelInterface;
sl@0: 		CScreen *iOwner;
sl@0: 		CEventQueueRetry *iRetry;
sl@0: 				
sl@0: 		RArray<MWsDisplayControl::TResolution> iLastResList;
sl@0: 		TInt iLastErr;
sl@0: 	};
sl@0: 
sl@0: class CWsConfigChangeNotifier : public CActive
sl@0: 	{
sl@0: 	public:
sl@0: 		static CWsConfigChangeNotifier* NewL(MWsDisplayControl* aNextLevelInterface, CScreen *aOwner);
sl@0: 		void IssueNotificationRequest();
sl@0: 		void CancelNotificationRequest();
sl@0: 		void UpdateLastSetConfiguration(TDisplayConfiguration& aNewConfig);
sl@0: 		~CWsConfigChangeNotifier();
sl@0: 	protected:
sl@0: 		void ConstructL();
sl@0: 		virtual void RunL();
sl@0: 		virtual void DoCancel();
sl@0: 	private:
sl@0: 		CWsConfigChangeNotifier(MWsDisplayControl* aNextLevelInterface, CScreen *aOwner);
sl@0: 		TBool IsConfigEqual(TDisplayConfiguration& aConfigA, TDisplayConfiguration& aConfigB);
sl@0: 		
sl@0: 		TRequestStatus* iRsStatus;
sl@0: 		MWsDisplayControl* iNextLevelInterface;
sl@0: 		CScreen *iOwner;
sl@0: 		CEventQueueRetry *iRetry;
sl@0: 		
sl@0: 		TDisplayConfiguration iLastConfig;
sl@0: 		// last set screen device SetConfiguration call
sl@0: 		TDisplayConfiguration iLastSetConfig;
sl@0: 	};
sl@0: 
sl@0: #endif