// Copyright (c) 2004-2009 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 "obsrvr.h"

#include "panic.h"

CObservable::CObservable() :

	iNotificationState(ETrue)

	{

	}

CObservable::~CObservable()

	{

	iObservers.Close();

	}

TInt CObservable::AddObserverL(MObserver& aObserver)

	{

	User::LeaveIfError(iObservers.Append(&aObserver));

	return iObservers.Count();

	}

TInt CObservable::RemoveObserver(MObserver& aObserver)

	{

	TInt i = iObservers.Find(&aObserver);

	__ASSERT_ALWAYS(i>=0, Panic(ERepositoryNotFound));

	iObservers.Remove(i);

	return iObservers.Count();

	}

void CObservable::Notify(TUint32 aVal) const

	{

	if(iNotificationState)

		{

		for(TInt i=iObservers.Count()-1; i>=0; --i)

			{

			iObservers[i]->Notify(aVal);

			}

		}

	}