/*

* Copyright (c) 2008-2008 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:  Parser class for parsing landmarks to url and vice versa

*

*/

#ifndef CESMRURLPARSERPLUGINIMPL_H

#define CESMRURLPARSERPLUGINIMPL_H

#include <e32std.h>

#include <e32base.h>

#include <f32file.h>                // RFs

#include <barsc.h>                  // RResourceFile

#include <barsread.h>               // TResourceReader

#include "cesmrurlparserplugin.h"

class CPosLandmark;

/**

 *  Parser class for parsing URL to landmark and vice versa

 *  

 */

class CESMRUrlParserPluginImpl : public CESMRUrlParserPlugin

    {

public:

    static CESMRUrlParserPluginImpl* NewL();

    static CESMRUrlParserPluginImpl* NewLC();

   /**

    * Destructor.

    */

    virtual ~CESMRUrlParserPluginImpl();

    /**

     * Finds location URL from given text input

     *

     * @param aText text where URL is searched from

     * @param aUrl points to founded URL after execution

     * @return URL start position in aText,

     *         if not found returns KErrNotFound/KErrArgument or other

     *         unexpected Symbian wide errorcode

     */

    TInt FindLocationUrl( const TDesC& aText, TPtrC& aUrl );

    /**

     * Creates location URL from landmark object

     * May leave with KErrNotFound/KErrArgument or other Symbian wide errorcode

     *

     * @param aLandmark contains landmark object that is parsed to location URL

     * @return pointer to created location URL, caller takes ownership

     */

    HBufC* CreateUrlFromLandmarkL( const CPosLandmark& aLandmark );

    /**

     * Creates landmark object from location URL

     * May leave with KErrNotFound/KErrArgument or other Symbian wide errorcode

     *

     * @param aUrl contains location URL from which landmark is created

     * @return pointer to created landmark object, caller takes ownership

     */

    CPosLandmark* CreateLandmarkFromUrlL( const TDesC& aUrl );    

private:

    CESMRUrlParserPluginImpl();

    void ConstructL();

    TInt DoFindLocationUrlL( const TDesC& aText, 

                             TPtrC& aUrl );

    TInt LocateResourceFile( 

            const TDesC& aResource,

            const TDesC& aPath,

            TFileName &aResourceFile,

            RFs* aFs );

    void InitializeL();

    HBufC* ReadResourceStringLC( TInt aResourceId );

    void CheckCoordinateParamL( const TDesC& aParam );

    void GetCoordinateParamValuesL( const TDesC& aUrl, TPtrC& aLatitude,

                                    TPtrC& aLongitude );

private: // data

    /**

     * Tells if this instance is yet initialized

     */

    TBool iIsInitialized;

    /**

     * File server session

     */

    RFs iFs;

    /**

     * Resource file

     */

    RResourceFile iFile;

    /**

     * Resource file reader

     */    

    TResourceReader iReader;

    };

#endif //   CESMRURLPARSERPLUGINIMPL_H