/*

* Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  CLandmarkObserver class for handling async requests

*

*/

#ifndef __CLANDMARKOBSERVER_H__

#define __CLANDMARKOBSERVER_H__

#include <e32base.h>

#include "mlandmarkobserver.h"

//FORWARD DECLARATION

class CLiwGenericParamList;

class CLandmarkInterface;

/**

* CLandmarkObserver

* This class acts as an observer for all asynchronous requests. After the request

* is completed, it checks for error and packs it in output param list. If there

* is no error, then the iterator is also packed into the output param list.

*/

// CLASS DECLARATION

NONSHARABLE_CLASS(CLandmarkObserver): public CBase, public MLandmarkObserver

    {

    public: // New methods

        /**

        * NewL.

        * Two-phased constructor.

        * Create a CLandmarkObserver object.

        * @param aLmIface The CLandmarkInterface instance.

        * @return A pointer to the newly created instance of CLandmarkObserver.

        */

        static CLandmarkObserver* NewL( CLandmarkInterface* aLmIface );

	/**

	 * ~CLandmarkObserver

	 * Destructor.

	 */

	~CLandmarkObserver();

    public:// from MLandmarkObserver

	// HandleLandmarkItemsL.

	// Notifies client of state change and calls MLiwNotifyCallback::HandleNotifyL().

	void HandleLandmarkItemsL(CPosLmItemIterator* aIterator,

			TInt32 aTransactionId, TInt aError, CLandmarkHandler* aHandler);

	// HandleCategoryItemsL.

	// Notifies client of state change and calls MLiwNotifyCallback::HandleNotifyL().

	void HandleCategoryItemsL(CPosLmItemIterator* aIterator,

			TInt32 aTransactionId, TInt aError, CLandmarkHandler* aHandler);

	void HandleAddItemsL(TPosLmItemId aId, TInt32 aTransactionId, TInt aError);

	void HandleItemsL(TInt32 aTransactionId, TInt aError);

    private: // Constructors

        /**

        * CLandmarkObserver.

        * C++ default constructor.

        * @param aLmIface The CLandmarkInterface instance.

        */

        CLandmarkObserver( CLandmarkInterface* aLmIface );

    private: //Data        

        /**

        * iLmIface

        * Handle to CLandmarkInterface instance.

        */

        CLandmarkInterface* iLmIface;

	/**

	 * iId

	 * The id of the added/modified landmark/category.

	 */

	HBufC* iId;

    };

#endif // __CLANDMARKOBSERVER_H__

// End of File