/*

* Copyright (c) 2007 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:  Observer for exporting a contact from the contact store.

*

*/

#ifndef C_EXPORTSTORELISTOBSERVER_H

#define C_EXPORTSTORELISTOBSERVER_H

#include <s32file.h> // Used for RFileWriteStream 

#include <MVPbkContactStoreListObserver.h>    //base class for vCardEng

#include <MVPbkContactObserver.h>    //base class for vCardEng

#include <MVPbkSingleContactOperationObserver.h> //base class for vCardEng

#include <CVPbkVCardEng.h>

#include <MVPbkContactStore.h>

#include "contactcallback.h"

#include "storelistobserver.h"

#include "contactservice.h"

#include "cancelasyncrquest.h"

class CVPbkVCardEng;

class CVPbkContactManager;

class MVPbkStoreContact;

class MVPbkFieldType;

class MVPbkContactLink;

class CContactCopyObserver;

class CContactService;

class CExportStoreListObserver;

class CExportStoreListObserver: public CBase,

								public MContactStoreListObserver,

								public MVPbkSingleContactOperationObserver,

								public MCancelAsync

{   

public:

	/*

	 * called for creating an instace of delete contact observer

	 */

    static CExportStoreListObserver* NewL(CContactService* aContactService,

    									  RFs &aFs,

    									  const TFileName& aFileName,

    									  const TDesC8& aContactId,

    									  MContactCallback *aCallback, 

    									  TInt aTransId );

	/*

	 * Destructor

	 */

    ~CExportStoreListObserver();

   	/* 

   	 * sets vcard engine

   	 */

     void SetEngine(CVPbkVCardEng* aEngine);

    /*

     * sets contact store

     */

     void SetContactStore(MVPbkContactStore* aContactStore);

    /*

     * sets contact service

     */

     void SetContactService(CContactService* aContactService);

	/*

	 * Implementation of Cancel of MCancelAsync

	 */

	 void Cancel();

private: // from MVPbkContactStoreListObserver

    /**

     * An indication that the contact store is ready.

     *

     * @param aContactStore A reference to the store sending the indication.

     * @return None.

     */

    void StoreReady( MVPbkContactStore& aContactStore );

    /**

     * An indication that the contact store is not ready.

     *

     * @param aContactStore A reference to the store sending the indication.

     * @param aReason An error code defining the reason for unavailability.

     * @return None.

     */

    void StoreUnavailable( MVPbkContactStore& aContactStore,

        TInt aReason );

    /**

     * An indication for a contact store event.

     *

     * @param aContactStore A reference to the store sending the indication.

     * @param aStoreEvent The contact store event.

     * @return None.

     */

    void HandleStoreEventL( MVPbkContactStore& aContactStore,

        TVPbkContactStoreEvent aStoreEvent );

    /**

     * An indication that the contact store is openned successfully.

     *

     * @return None.

     */

    void OpenComplete();

private: // from MVPbkSingleContactOperationObserver

    /**

     * An indication that a contact operation has been completed.

     *

     * @param aOperation A reference to the operation instance.

     * @param aContact A pointer to the contact object used in the operation.

     * @return None.

     */

    void VPbkSingleContactOperationComplete(

        MVPbkContactOperationBase& aOperation,

        MVPbkStoreContact* aContact );

    /**

     * An indication that a contact operation has failed.

     *

     * @param aOperation A reference to the operation instance.

     * @param aError The error code for the operation.

     * @return None.

     */

    void VPbkSingleContactOperationFailed(

        MVPbkContactOperationBase& aOperation, TInt aError );    

private:

	/*

	 * Constructor

	 */

    CExportStoreListObserver();

    /*

     * Symbian second-phase constructor

     */

    void ConstructL(CContactService* aContactService,

					RFs &aFs,

					const TFileName& aFileName,

					const TDesC8& aContactId,

					MContactCallback *aCallback,

					TInt aTransId);

 private: // Data members

    /**

     * A pointer to the Virtual Phonebook Engine instance.

     * Own.

     */

     CVPbkVCardEng* iEngine;

	/*

	 * File session.

	 */     

     RFs iFs;

    /*

     * File name

     */

     TFileName iFileName;

    /*

     * Pointer to a callback instance.

     */

     MContactCallback* iCallback;

    /*

     * Pointer to contact link instance.

     */ 

     const MVPbkContactLink* iContactLink;

    /*

     * Pointer to contact store instance.

     */ 

     MVPbkContactStore* iContactStore;

    /*

     * Transaction Id.

     */

     TInt32 iTransId;

    /*

     * File write stream instance.

     */ 

     RFileWriteStream iDest;

     MVPbkContactLinkArray* iLinkArray;

     CContactService* iContactService;

    /*

     * Handle for underlying Export call

     */

     MVPbkContactOperationBase* iOp;     

};

#endif //// C_EXPORTSTORELISTOBSERVER_H