/*

* Copyright (c) 2005 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:  SUPL PSY position requestor header file

*

*/

#ifndef SUPLPSYREQUESTOR_H

#define SUPLPSYREQUESTOR_H

//  INCLUDES

#include <e32base.h>

#include <lbs.h>

#include <epos_suplterminal.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

*  This class implements position requestor of SUPL PSY

*  

*  @lib nlasuplpsy.dll

*  @since S60 3.1

*/

class CSuplPsyRequestor : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Two - phased constructor.

        */

        static CSuplPsyRequestor* NewL( 

            const TCallBack& aObserver );

        /**

        * Destructor.

        */

        ~CSuplPsyRequestor();

    public:

        /**

        * Request location

        */

        void RequestLocation();

        /**

        * Get location request result

        * @return Error code

        */

        TInt GetRequestResult();

        /**

        * Get location from the request

        * @return The data is valid only if the location request

        * succeed and this function is called inside callback function.

        */

        const HPositionGenericInfo& GetLocation();

        /**

        * Reset last known position

        */

        void ResetLastPosition();

    private:

        /**

        * From CActive

        */

        void RunL();

        /**

        * From CActive

        */

        void DoCancel();

        /**

        * From CActive

        */

        TInt RunError( TInt aError );

    private:

        /**

        * C++default constructor.

        */

        CSuplPsyRequestor( 

            const TCallBack& aObserver );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Construct HPositionGenericInfo and set requested fields

        */

        HPositionGenericInfo* ConstructGenericInfoL( 

            TInt aBufferSize = KPositionGenericInfoDefaultBufferSize ) const;

        /**

         * Checks if request is made within the Ttnf time

         */

        TBool IsRequestInTtnf();

    private:    // Data

        // Callback function for get location request complete event

        TCallBack iObserver;

        // Supl terminal server

        RSuplTerminalServer iSuplServer;

        // Supl subsession

        RSuplTerminalSubSession iSuplSession;

        // position info

        HPositionGenericInfo* iPositionInfo;

        // Flag to indicate first request

        TBool iFirstReq;

        // TTNF from NPP PSY

        TInt iTtnf;

        // TTNF flag to return the position

        TBool iTtnfFlag;

        // Result of previous request and getposition

        TBool iPrevFixSuccess;

    };

#endif      // SUPLPSYREQUESTOR_H   

// End of File