/*

* Copyright (c) 2002 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: 

*        Class for registering CPbkContactEngine observers

*

*/

// INCLUDE FILES

#include "CPbkContactChangeNotifier.h"

#include "CPbkContactEngine.h"

/// Unnamed namespace for local definitions

namespace {

#ifdef _DEBUG

// LOCAL CONSTANTS AND MACROS

enum TPanicCode

    {

    EPanicPreCond_NewL = 1

    };

// LOCAL FUNCTIONS

static void Panic(TPanicCode aReason)

    {

    _LIT(KPanicText, "CPbkContactChangeNotifier");

    User::Panic(KPanicText, aReason);

    }

#endif // _DEBUG

} // namespace

// ==================== MEMBER FUNCTIONS ====================

inline CPbkContactChangeNotifier::CPbkContactChangeNotifier

        (MPbkContactDbObserver* aObserver)

    : iEngine(NULL), iObserver(aObserver)

    {

    }

inline void CPbkContactChangeNotifier::ConstructL(CPbkContactEngine& aEngine)

    {

    aEngine.AddObserverL(iObserver);

    // AddObserverL was succesful, set iEngine member

    iEngine = &aEngine;

    }

EXPORT_C CPbkContactChangeNotifier* CPbkContactChangeNotifier::NewL

        (CPbkContactEngine& aEngine, MPbkContactDbObserver* aObserver)

    {

    __ASSERT_DEBUG(aObserver, Panic(EPanicPreCond_NewL));

    CPbkContactChangeNotifier* self = 

        new(ELeave) CPbkContactChangeNotifier(aObserver);

    CleanupStack::PushL(self);

    self->ConstructL(aEngine);

    CleanupStack::Pop(self); 

    return self;

    }

CPbkContactChangeNotifier::~CPbkContactChangeNotifier()

    {

    if (iEngine)

        {

        iEngine->RemoveObserver(iObserver);

        }

    }

// End of File