/** @file

* Copyright (c) 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:  Declares the CUpnpServiceTagContentHandler class

*

*/

#ifndef __UPNPSERVICETAGCONTENTHANDLER_H__

#define __UPNPSERVICETAGCONTENTHANDLER_H__

#include <babitflags.h>

#include "upnpcontenthandler.h"

class CUpnpService;

using namespace Xml;

/**

*  This class handles icon subtree of service descriptions

*  It extends CUpnpContentHandler class, thus it is subsequent implementation of MContentHandler interface

*  It is designed to be used by upnp controler that delegates to it events from xml sax parser   

*

*/

NONSHARABLE_CLASS( CUpnpServiceTagContentHandler ) : public CUpnpContentHandler

{

protected: 

    enum TState

        { 

        EInitial,

        EServiceType,

        EServiceId, 

        ESCPDURL,

        EControlURL,

        EEventSubURL

        };

public:

    /**

    * Two-phased constructor

    * @return instance of CUpnpServiceTagContentHandler class

    */	

    static CUpnpServiceTagContentHandler* NewL(

            CUpnpContentHandlersController& aController, CUpnpService& aResultService );

    /**

    * Two-phased constructor. Leaves the object on CleanupStack

    * @return instance of CUpnpServiceTagContentHandler class

    */	

    static CUpnpServiceTagContentHandler* NewLC( 

            CUpnpContentHandlersController& aController, CUpnpService& aResultService );

    /**

    * Destructor of CUpnpServiceTagContentHandler class

    */	

    virtual ~CUpnpServiceTagContentHandler();

public:	// from CUpnpContentHandler

    /**

    * This method is a callback to indicate an element has been parsed.

    * @param				aElement is a handle to the element's details.

    * @param				aAttributes contains the attributes for the element.

    */

    virtual void OnStartElementL( const RTagInfo& aElement, 

                                  const RAttributeArray& aAttributes );

    /**

    * This method is a callback to indicate the end of the element has been reached.

    * @param              aElement is a handle to the element's details.

    */

    virtual void OnEndElementL( const RTagInfo& aElement );

    /**

    * This method is a callback that sends the content of the element.

    * @param              aBytes is the raw content data for the element in one chunk

    */

     virtual void OnContentL( const TDesC8& aBytes );    

protected:

    /**

    * Default C++ constructor 

    */	

	CUpnpServiceTagContentHandler( CUpnpContentHandlersController& aController, 

	        CUpnpService& aResultService );

    /**

    * Process content of serviceType tag.

    * @param aBytes  text content of tag 

    **/

	void ProcessServiceTypeContentL( const TDesC8& aBytes );

    /**

    * Do necessary operation when specyfic tag inside service tag have been found

    * @param aFlagPosition  position of tag in iFoungTags

    * @param aStateToSet    state indicate that specific tag have been found

    **/

    void ProcessInternalTagL( TInt aFlagPosition, TState aStateToSet );

private:

    CUpnpService& iResultService;

    TState iCurrentState;

    TBitFlags8 iFoundTags;

};

#endif //__UPNPSERVICETAGCONTENTHANDLER_H__