// 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:

 //

 #include "rsdisplaychangeao.h"

 #include "displaypolicy.h"

 CRsDisplayChangeNotifier::CRsDisplayChangeNotifier(MWsDisplayControl* aNextLevelInterface, CDisplayPolicy* aDisplayPolicy)

 :CActive(EPriorityHigh),iWsStatus(NULL)

 	{

 	CActiveScheduler::Add(this);

 	iNextLevelInterface = aNextLevelInterface;

 	iDisplayPolicy = aDisplayPolicy;

 	}

 CRsDisplayChangeNotifier* CRsDisplayChangeNotifier::NewL(MWsDisplayControl* aNextLevelInterface, CDisplayPolicy* aDisplayPolicy)

 	{

 	CRsDisplayChangeNotifier* self = new(ELeave) CRsDisplayChangeNotifier(aNextLevelInterface, aDisplayPolicy);

 	return self;

 	}

 void CRsDisplayChangeNotifier::IssueNotificationRequest()

 	{

 	iNextLevelInterface->NotifyOnDisplayChange(iStatus);

 	SetActive();

 	}

 void CRsDisplayChangeNotifier::RegisterActiveStatus(TRequestStatus &aStatus)

 	{

 	iWsStatus = &aStatus;

 	}

 void CRsDisplayChangeNotifier::CancelNotificationRequest()

 	{

 	Cancel();

 	}

 void CRsDisplayChangeNotifier::RunL()

 	{

 	//IssueNotificationRequest will overwrite iStatus, save a copy first;

 	TInt result = iStatus.Int();

 	IssueNotificationRequest();

 	//calculate min UI buffer size depending on physical resolutions

 	TInt ret = iNextLevelInterface->NumberOfResolutions();

 	RArray<MDisplayControlBase::TResolution> resolutions;

 	CleanupClosePushL(resolutions);

 	if(ret > 0)

 		{

 		//just ignore the error. if there's an error, an empty resolution list is passed in, and uibuffer

 		//will remain the previous size

 		iNextLevelInterface->GetResolutions(resolutions);

 		}

 	iDisplayPolicy->CalculateMinBufferSize(resolutions, ret);				

 	CleanupStack::PopAndDestroy(&resolutions);

 	if(iWsStatus && *iWsStatus == KRequestPending)

 		{

 		User::RequestComplete(iWsStatus, result);

 		}

 	}

 void CRsDisplayChangeNotifier::DoCancel()

 	{

 	iNextLevelInterface->NotifyOnDisplayChangeCancel();

 	if(iWsStatus && *iWsStatus == KRequestPending)

 		User::RequestComplete(iWsStatus, KErrCancel);

 	}

 CRsDisplayChangeNotifier::~CRsDisplayChangeNotifier()

 	{

 	Cancel();

 	}

 CRsConfigChangeNotifier::CRsConfigChangeNotifier(MWsDisplayControl* aNextLevelInterface)

 :CActive(EPriorityHigh), iWsStatus(NULL)

 	{

 	CActiveScheduler::Add(this);

 	iNextLevelInterface = aNextLevelInterface;

 	}

 CRsConfigChangeNotifier* CRsConfigChangeNotifier::NewL(MWsDisplayControl* aNextLevelInterface)

 	{

 	CRsConfigChangeNotifier* self = new(ELeave) CRsConfigChangeNotifier(aNextLevelInterface);

 	return self;

 	}

 void CRsConfigChangeNotifier::IssueNotificationRequest()

 	{

 	iNextLevelInterface->NotifyOnConfigChange(iStatus);

 	SetActive();

 	}

 void CRsConfigChangeNotifier::RegisterActiveStatus(TRequestStatus &aStatus)

 	{

 	iWsStatus = &aStatus;

 	}

 void CRsConfigChangeNotifier::CancelNotificationRequest()

 	{

 	Cancel();

 	}

 void CRsConfigChangeNotifier::RunL()

 	{

 	//IssueNotificationRequest will overwrite iStatus, save a copy first;

 	TInt result = iStatus.Int();

 	IssueNotificationRequest();

 	if(iWsStatus && *iWsStatus == KRequestPending)

 		{

 		User::RequestComplete(iWsStatus, result);

 		}

 	}

 void CRsConfigChangeNotifier::DoCancel()

 	{

 	iNextLevelInterface->NotifyOnConfigChangeCancel();

 	if(iWsStatus && *iWsStatus == KRequestPending)

 		User::RequestComplete(iWsStatus, KErrCancel);

 	}

 CRsConfigChangeNotifier::~CRsConfigChangeNotifier()

 	{

 	Cancel();

 	}