diff -r 1fc85118c3ae -r 870918037e16 landmarksui/engine/inc/CLmkDbEventListener.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/landmarksui/engine/inc/CLmkDbEventListener.h Wed Sep 01 12:31:27 2010 +0100 @@ -0,0 +1,114 @@ +/* +* Copyright (c) 2004 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: LandmarksUi Content File - Database event listener. +* +*/ + + + + + + + + +#ifndef CLMKDBEVENTLISTENER_H +#define CLMKDBEVENTLISTENER_H + +// INCLUDES +#include "EPos_Landmarks.h" +#include + +// FORWARD DECLARATIONS +class CPosLandmarkDatabase; +class MLmkDbObserver; + +// CLASS DECLARATION + +/** +* This class is not meant for direct usage, use CLmkEventListenerSingleton +* instead. +* This class is associated to a database since adding the first observer, +* until removing last observer. It is user's responsibility to remove all +* added observers. +*/ +class CLmkDbEventListener : public CActive + { + public: // Constructors and destructor + /** + * Create CLmkDbEventListener object + * @return newly instantiated object + */ + static CLmkDbEventListener* NewL(); + + /** + * Destructor. + */ + ~CLmkDbEventListener(); + + public: // New methods + + /** + * Only one database currently supported, leaves with + * KErrNotSupported if aDb differs from already used db. + * @param aObserver + * @param aDb + */ + void AddObserverL( MLmkDbObserver& aObserver, + CPosLandmarkDatabase& aDb ); + + /** + * Remove observer + * @param aObserver + */ + void RemoveObserver( MLmkDbObserver& aObserver ); + + protected: // New methods + /** + * Start listening + */ + void StartListening(); + + protected: // From CActive + void RunL(); + void DoCancel(); + + protected: // Constructors and destructor + /** + * C++ default constructor. + * @return newly instantiated object + */ + CLmkDbEventListener(); + + /** + * Symbian 2nd phase constructor + */ + void ConstructL(); + + private: // Data + + TPosLmEvent iEvent; + + ///Ref: + CPosLandmarkDatabase* iDb; + + ///Own: + HBufC* iDbURI; + + ///Ref: + RPointerArray iObservers; + }; + +#endif // CLMKDBEVENTLISTENER_H + +// End of File