williamr@2: /*
williamr@2: * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: * All rights reserved.
williamr@2: * This component and the accompanying materials are made available
williamr@2: * under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
williamr@2: * which accompanies this distribution, and is available
williamr@2: * at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
williamr@2: *
williamr@2: * Initial Contributors:
williamr@2: * Nokia Corporation - initial contribution.
williamr@2: *
williamr@2: * Contributors:
williamr@2: *
williamr@2: * Description: 
williamr@2: *       Class for registering CPbkContactEngine observers.
williamr@2: *
williamr@2: */
williamr@2: 
williamr@2: 
williamr@2: #ifndef __CPbkContactChangeNotifier_H__
williamr@2: #define __CPbkContactChangeNotifier_H__
williamr@2: 
williamr@2: //  INCLUDES
williamr@2: #include <e32base.h>  // CBase
williamr@2: 
williamr@2: // FORWARD DECLARATIONS
williamr@2: class CPbkContactEngine;
williamr@2: class MPbkContactDbObserver;
williamr@2: 
williamr@2: 
williamr@2: // CLASS DECLARATION
williamr@2: 
williamr@2: /**
williamr@2:  * A class used for registering as an observer for contact database
williamr@2:  * change events. 
williamr@2:  */
williamr@2: class CPbkContactChangeNotifier : public CBase
williamr@2:     {
williamr@2:     public:  // Constructors and destructor
williamr@2:         /**
williamr@2:          * Creates a new instance of this class and registers aObserver as an
williamr@2:          * observer of aEngine.
williamr@2:          *
williamr@2:          * @param aEngine   The observed object.
williamr@2:          * @param aObserver The observer to call when database changes occur.
williamr@2:          * @return  A contact change notifier instance.
williamr@2:          */
williamr@2:         IMPORT_C static CPbkContactChangeNotifier* NewL
williamr@2:             (CPbkContactEngine& aEngine, MPbkContactDbObserver* aObserver);
williamr@2: 
williamr@2:         /**
williamr@2:          * Removes the aObserver from aEngine given as paramters to NewL and
williamr@2:          * destructs this object.
williamr@2:          */
williamr@2:         ~CPbkContactChangeNotifier();
williamr@2: 
williamr@2:     private:  // Implementation
williamr@2:         CPbkContactChangeNotifier
williamr@2:             (MPbkContactDbObserver* aObserver);
williamr@2:         void ConstructL(CPbkContactEngine& aEngine);
williamr@2: 
williamr@2:     private:  // data
williamr@2:         /// Ref: Phonebook engine
williamr@2:         CPbkContactEngine* iEngine;
williamr@2:         /// Ref: the observer
williamr@2:         MPbkContactDbObserver* iObserver;
williamr@2:     };
williamr@2: 
williamr@2: 
williamr@2: #endif // __CPbkContactChangeNotifier_H__
williamr@2: 
williamr@2: // End of File