/*

* Copyright (c) 2005-2007 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:  ConML parser/generator

*

*/

#ifndef _SCONCONMLHANDLER_H

#define _SCONCONMLHANDLER_H

// -----------------------------------------------------------------------------

// Includes

// -----------------------------------------------------------------------------

#include "sconconmlgenerator.h"

#include "sconwbxmldefs.h"

#include "sconconmlhandlererror.h"

#include "sconconmldtd.h"

// -----------------------------------------------------------------------------

// Definitions and constants

// -----------------------------------------------------------------------------

_LIT8(KWBXMLNull, "\x00");

const TInt KSConBufferGranularity( 32 );

const TInt KSConDefaultDocumentSize( 2048 );

// -----------------------------------------------------------------------------

// TWBXMLStackItem

// -----------------------------------------------------------------------------

NONSHARABLE_STRUCT( TWBXMLStackItem )

    {

public:

    inline TWBXMLStackItem( TUint8 aTag );

    inline TUint8 Tag() const;

private:

    TUint8 iTag;

    };

#include "sconwbxmlparser.inl"

// -----------------------------------------------------------------------------

// CSConConMLHandler - WBXML parsing

// -----------------------------------------------------------------------------

class CSConConMLHandler : public CBase

    {

public:

    static CSConConMLHandler* NewL();

    ~CSConConMLHandler();

    /**

    * Starts the parsing of a WBXML document

    * @param aInput - the WBXML document to be parsed

    * @param aCallback - Call back function to call 

    * after the document is parsed

    * @return An error code

    */

    virtual TInt ParseDocumentL( CBufFlat& aInput,  

        MWBXMLConMLCallback* aCallback  );

    /**

    * Starts the generating of a WBXML and XML document

    * @param aContent - the data to be generated into the document

    * @return An error code

    */

    virtual TInt GenerateDocument( ConML_ConMLPtr_t aContent );

    /**

    * Returns the generated document in XML -format

    * @param none

    * @return The document as TPtrC8

    */

    virtual TPtrC8 XMLDocument();

    /**

    * Returns the generated document in WBXML -format

    * @param none

    * @return The document as TPtrC8

    */

    virtual TPtrC8 WBXMLDocument();

private:

    CSConConMLHandler();

    void ConstructL();

    TInt ParseL();

    TConMLParserError DoParseDocumentHeaderL();

    TConMLParserError DoParseDocumentBodyL();

    TUint8 ReadUint8L();

    TUint32 ReadMUint32L();

    TPtrC8 ReadStrIL();

    TPtrC8 StringTableString( TUint32 aIndex );

    void ReadStringTableL();    

    TPtrC8 ReadOpaqueL();

    void HandleElementL( TUint8 aId );

private:

    CSConConMLGenerator* iGenerator;

    HBufC8* iStringTable;

    CBufBase* iBuffer;

    TBool iHeaderParsed;

    RArray< TUint > iElemStack;

    TInt iPos;

    CBufFlat* iParseBuffer;

    MWBXMLConMLCallback* iCallback;

    };

    IMPORT_C CSConConMLHandler* CreateCSConConMLHandlerL();

    typedef CSConConMLHandler* (*TSConCreateCSConConMLHandlerFunc) (); 

#endif