/*

* Copyright (c) 2009 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: 

*

*/

#ifndef C_CONTACTRETRIEVEOBSERVER_H

#define C_CONTACTRETRIEVEOBSERVER_H

#include <MVPbkSingleContactOperationObserver.h>

class MContactCallback;

class CContactIter;

/*

 * This class contains methods to handle contact retrival events.

 */

class CContactRetrieveObserver:public CBase,

							   public MVPbkSingleContactOperationObserver,

							   public MCancelAsync

{

public:

		static CContactRetrieveObserver* NewL(CContactIter* aIter,

		                                      MContactCallback* aCallback = NULL, 

							                  CContactService* aContactService = NULL,

							                  enum Ttype aType = EOthers, 

		                                      TInt aTransId = 0, 

		                                      CActiveSchedulerWait* aSchedulerWait = NULL);

    	/*

    	 * Method that handles contact_retrieval_completion It notifies the caller with the result 

    	 * and sets the iterator with the results

    	 */

        void VPbkSingleContactOperationComplete(MVPbkContactOperationBase& aOperation,

                                                MVPbkStoreContact* aContact );

        /*

    	 * Method that handles contact_retrieval_failure. It notifies the caller with the error

    	 */                

        void VPbkSingleContactOperationFailed(MVPbkContactOperationBase& aOperation, 

                                              TInt aError );

    	/*

    	 * Implementation of Cancel of MCancelAsync

    	 */

		void Cancel();                                              

private:

		void ConstructL(CContactIter* aIter, 

		                MContactCallback* aCallback = NULL, 

		                CContactService* aContactService = NULL,

		                enum Ttype aType = EOthers,

		                TInt aTransId = 0, 

		                CActiveSchedulerWait* aSchedulerWait = NULL);

		//Callback function

		MContactCallback *iCallback;

		// Pointer to iterator

		CContactIter* iIter;

		//Type of Call, Sync or Async

		TInt iTransId;

		//For Stopping async calls

		CActiveSchedulerWait* iSchedulerWait;		

		//Pointer to contact service

		CContactService* iContactService;

		//Type of the item being retrieved

		Ttype iType;

};

#endif //C_CONTACTRETRIEVEOBSERVER_H