/*

* Copyright (c) 2006-2007 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:      XML SAX Parser for UPnP.

*

*/

#ifndef C_UPNPXMLPARSERLITE_H_

#define C_UPNPXMLPARSERLITE_H_

// INCLUDES

#include <e32base.h>

#include <xml/contenthandler.h>

// FORWARD DECLARATIONS

class CUpnpObjectLite;

class CUPnPObjectStackLite; 

//class CUpnpItem;

//class CUpnpContainer;

using namespace Xml;

/**

 * XML SAX Parser for UPnP.

 *

 * @since s60 3.1

 * @lib upnpxmlparser.lib

 */

class CUPnPXMLParserLite :  public CBase,

                            public MContentHandler

    {

public:

    /**

     * 2-phased constructor.

     */

    IMPORT_C static CUPnPXMLParserLite* NewL();

    /**

     * 2-phased constructor.

     */

    IMPORT_C static CUPnPXMLParserLite* NewLC();

    /**

     * Destructor.

     */

    virtual ~CUPnPXMLParserLite();

public:

    /**

     * Parses xml data to the array of objects.

     * @param aResultArray, An array for objects in xml root.

     * @param aData, xml data.

     * @param aFormatString the format of title. If KNullDesC title will be

     * stored as it is. It's expected that the string is in the following

     * format: _L( "0\t%S---" ); where "0" is a placeholder for icon index

     * and %S is a placeholder for title

     * 

     */

    IMPORT_C void ParseResultDataL( RPointerArray<CUpnpObjectLite>&

        aResultArray, const TDesC8& aData, const TDesC& aFormatString = KNullDesC );

protected: // from MContentHandler

    /**

     * From MContentHandler.

     * @param aDocParam, not used.

     * @param aErrorCode, not used.

     */

    void OnStartDocumentL( const RDocumentParameters& aDocParam, 

                           TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aErrorCode, not used.

     */

    void OnEndDocumentL( TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aElement, holds the element info.

     * @param aAttributes, holds the element's attributes.

     * @param aErrorCode, if not KErrNone, the method is ignored.

     */

    void OnStartElementL( const RTagInfo& aElement, 

                          const RAttributeArray& aAttributes, 

                          TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aElement, holds the element info.

     * @param aErrorCode, if not KErrNone, the method is ignored.

     */

    void OnEndElementL( const RTagInfo& aElement, TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aBytes, The value of the content.

     * @param aErrorCode, if not KErrNone, the method is ignored.

     */

    void OnContentL( const TDesC8& aBytes, TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aPrefix, not used.

     * @param aUri, not used.

     * @param aErrorCode, not used.

     */    

    void OnStartPrefixMappingL( const RString& aPrefix, 

                                const RString& aUri, 

                                TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aPrefix, not used.

     * @param aErrorCode, not used.

     */

    void OnEndPrefixMappingL( const RString& aPrefix, TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aBytes, not used.

     * @param aErrorCode, not used.

     */

    void OnIgnorableWhiteSpaceL( const TDesC8& aBytes, TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aName, not used.

     * @param aErrorCode, not used.

     */

    void OnSkippedEntityL( const RString& aName, TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aTarget, not used.

     * @param aData, not used.

     * @param aErrorCode, not used. 

     */

    void OnProcessingInstructionL( const TDesC8& aTarget, 

                                   const TDesC8& aData, 

                                   TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aErrorCode

     */                               

    void OnError( TInt aErrorCode );

    /**

     * From MContentHandler.

     * @param aUid, not used.

     * @return None.

     */

    TAny* GetExtendedInterface( const TInt32 aUid );

private:

    /**

     * Constructor.

     */

    CUPnPXMLParserLite();

    /**

     * 2nd phase constructor.

     */

    void ConstructL();

private: 

    /**

     * Sets element's attributes to the object.

     *

     * @param aObject attributes will be set to this object

     * @param aAttributes attributes to set

     */

    void SetAttributesL( CUpnpObjectLite& aObject, 

                         const RAttributeArray& aAttributes );

    void SetIconIndex( const CUpnpObjectLite& aObject );                     

private: // data

    /**

     * A pointer to result array from the client.

     * Not own.

     */      

    RPointerArray<CUpnpObjectLite>* iResultRoot;

    /**

     * A stack for UPnP objects.

     * Own.

     */

    CUPnPObjectStackLite*           iStack;

    /**

     * Element value

     * Own.

     */

    HBufC8*                     iElementValue;

    HBufC8*                     iTitleBuf;

    HBufC*                      iFormatString;

    TBool                       iTitle;

    TBool                       iObjectClass;

    };

#endif // C_UPNPXMLPARSER_H_

// End of File