/** @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 CUpnpIconContentHandler class

*

*/

#ifndef __UPNPICONCONTENTHANDLER_H__

#define __UPNPICONCONTENTHANDLER_H__

#include <babitflags.h>

#include "upnpcontenthandler.h"

class CUpnpIcon;

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   

*

*  @since Series60 2.6

*/

NONSHARABLE_CLASS( CUpnpIconContentHandler ) : public CUpnpContentHandler

{

protected: 

    enum TState

        { 

        EInitial,

        EMimeType, 

        EWidth, 

        EHeight,

        EDepth,

        EUrl

        };

public:

    /**

    * Two-phased constructor

    * @since Series60 3.2 

    * @return instance of CUpnpIconContentHandler class

    */	

    static CUpnpIconContentHandler* NewL(

            CUpnpContentHandlersController& aController, CUpnpIcon& aResultIcon );

    /**

    * Two-phased constructor. Leaves the object on CleanupStack

    * @since Series60 3.2 

    * @return instance of CUpnpIconContentHandler class

    */	

    static CUpnpIconContentHandler* NewLC( 

            CUpnpContentHandlersController& aController, CUpnpIcon& aResultIcon );

    /**

    * Destructor of CUpnpIconContentHandler class

    * @since Series60 3.2     

    */	

    virtual ~CUpnpIconContentHandler();

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 

    * @since Series60 3.2     

    */	

	CUpnpIconContentHandler( CUpnpContentHandlersController& aController, 

	        CUpnpIcon& aResultIcon );

	/**

	* Parses and returns int value stored in descriptor, or leaves with KErrArgument

	* if parsing failes.

	* @param              aToParse descriptor to parse

    * @return             parsed value as int

	*/

	TInt ParseIntL( const TDesC8& aToParse );

private:

    CUpnpIcon& iResultIcon;

    TState iCurrentState;

    TBitFlags8 iFoundTags;

};

#endif //__UPNPICONCONTENTHANDLER_H__