/*

* Copyright (c) 2010 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: Declaration of CPosRevGeoCodePlugin class.

*

*/

#ifndef POSREVGEOCODEPLUGIN_H

#define POSREVGEOCODEPLUGIN_H

#include "posreversegeocodeinterface.h"

#include "posrevgeocodehttpclientengine.h"

#include "posrevgeocodeconnectiontimer.h"

#include "posrevgeocodexmlparser.h"

class CPosRevGeoCodePlugin : public CPosReverseGeocodeInterface,

                             public MPosRevGeoCodeXmlObserver,

                             public MPosRevGeoCodeHTTPClientObserver,

                             public MPosRevGeoCodeTimeoutObserver

    {

public:

    /**

     * Factory function to create the instance of CPosRevGeoCodePlugin object.

     */

    static CPosRevGeoCodePlugin* NewL( MPosReverseGeocodeObserver& aObserver );

    /**

     * Destructor

     */

    ~CPosRevGeoCodePlugin();

    /**

     * Gets the address information for the given geo coordinates

     */

    virtual void GetAddressByCoordinateL( CPosLandmark& aLandmark );

    /**

     * Cancels the current operation.

     */

    virtual void Cancel();

    /**

     * Function to get the appropriate language for the request. 

     */

    void GetLanguageForTheRequest( TDes8& aLanguage );

public: // From MPosRevGeoCodeXmlObserver

    virtual void OnParseCompletedL( TInt aError );

public: // From MPosRevGeoCodeHTTPClientObserver

    virtual void ClientEvent( const THttpStatus& aEvent );

    virtual void ClientBodyReceived( const TDesC8& aBodyData );

public: // From MPosRevGeoCodeTimeoutObserver

    virtual void HandleTimedoutEvent( TInt aErrorCode );

private:

    /**

     * Symbian 2nd phase constructor.

     */

    void ConstructL();

    /**

     * Constructor

     */

    CPosRevGeoCodePlugin( MPosReverseGeocodeObserver& aObserver );

    /**

     * Starts the timer 

     */

    void StartTimer();

    /**

     * Closes connection

     */

    void CloseConnection();

private: // Data members

    /**

     * Reference to reverse geocode observer.

     */

    MPosReverseGeocodeObserver&  iObserver;

    /**

     * Pointer to HTTP client engine

     * Own

     */

    CPosRevGeoCodeHTTPClientEngine* iHTTPClientEngine;

    /**

     * Pointer to XML parser

     * Own

     */

    CPosRevGeoCodeXmlParser* iXmlParser;

    /**

     * Pointer to connection timer

     * Own

     */

    CPosRevGeoCodeConnectionTimer* iConnectionTimer;

    /**

     * Pointer to client's landmarks object.

     * Not own.

     */

    CPosLandmark* iClientLandmark;

    HBufC8* iXMLBuf;

    TBuf8<KMaxFileName> iQueryString;

    TBuf8<KMaxFileName> iAuthCode;

    TBuf8<KMaxFileName> iRefURL;

    TBuf8<KMaxFileName> iLang;

    };

#endif /* POSREVGEOCODEPLUGIN_H */