/*

* Copyright (c) 2006 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:  location triggering server client interface

*

*/

#ifndef LBTCLIENTREQUESTER_H

#define LBTCLIENTREQUESTER_H

#include <lbt.h>

#include "lbtclientrequester.h"

// Forward declaration

class RLbt;

/**

 * Client requestor class.

 *

 * This is a helper class used by RLbt class to serve the asyncronous operations

 * requested by the client.

 */

class CLbtClientRequester : public CActive

    {

public: 

    /** 

     * This is used to keep track of operation served by this object.

     */

    enum TAsyncReqType

        {

        EListTriggerIdsCount = 1,

        EListTriggersCount = 2,

        EOpOther = 3

        };

    /**

     * Construct a CLbtClientRequester object. 

     */

   	static CLbtClientRequester* NewL( RLbt& aLbt );

    /**

     * Destructor. 

     */

    ~CLbtClientRequester();

    /**

     * Starts the asyncronous operation by setting the iStatus to active

     */

    void Start();

    /**

     * Adds the buffer into the object.

     */

    void SetBuffer(CBufFlat* aBuf );

    /**

     * Starts the asyncronous operation by setting the iStatus to active.

     */

    void Start(TAsyncReqType aType);

    /**

     * Stores the client's status.

     */

    void SetStatus(TRequestStatus& aStatus);

    /**

     * Retrieves client's status

     */

    TRequestStatus& Status();

    /**

     * Stores the list trigger id data.

     */

    void SetListTriggerIdData(RArray < TLbtTriggerId >* aTriggerIdArray);

    /**

     * Stores the list trigger data.

     */

    void SetListTriggerData(RPointerArray < CLbtTriggerInfo >* aTriggerInfoList);

    /**

     * 

     */

    RPointerArray < CLbtTriggerInfo >* ListTriggerData();

    /**

     * 

     */

    RArray < TLbtTriggerId >* ListTriggerIdData();

    /**

     * Returns reference of list trigger size.

     */

    TInt& ListTriggersSize();

private://Derived from CActive

    void RunL();

    TInt RunError( TInt aError );

    void DoCancel();

private:

    /**

     * C++ default constructor

     */

    CLbtClientRequester( RLbt& aLbt);

    /**

     *Second phase constructor

     */   

    void ConstructL();

private:// data

    // Subsession handle

    RLbt& iLbt;

    // Pointer to client's status

    TRequestStatus* iClientStatus;

    // CBufFlat pointer array 

    RPointerArray < CBufFlat > iClientBuf;

    // Type of asyncronous request served.

    TAsyncReqType iType;

    // TLbtTriggerId array.   

    RArray < TLbtTriggerId >* iTriggerIdArray;

    // CLbtTriggerInfo pointer array.

    RPointerArray < CLbtTriggerInfo >* iTriggerInfoList;

    TInt iListTriggersSize;

    };

#endif // LBTTRIGGERCHANGEEVENTNOTIFIER_H