/*

* Copyright (c) 2005 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: Extracts needed attributes from received EMN message.

*		

*

*/

#ifndef EMNXMLCONTENTHANDLER_H

#define EMNXMLCONTENTHANDLER_H

#include <xml/contenthandler.h>

#include <xml/wbxmlextensionhandler.h>

#include <AlwaysOnlineManagerCommon.h>

#include "EMNHandler.h" // For common EMN error codes

using namespace Xml;

/*

* This class extracts needed attributes from received EMN message, which can

* be either in XML or in WBXML form.

*

*  @since S60 v3.1

*/

class CEMNXMLContentHandler : 

    public CBase, 

    public MWbxmlExtensionHandler, 

    public Xml::MContentHandler

	{

    public:

        /**

        * Creates object from CEMNXMLContentHandler

        * @since S60 v3.1

        * @return, Constructed object

        */

        static CEMNXMLContentHandler* NewL( 

            TEMNElement& aElement, TBool aIsAscii );

        /**

        * Creates object from CEMNXMLContentHandler and leaves it to 

        * cleanup stack

        * @since S60 v3.1

        * @return, Constructed object

        */

        static CEMNXMLContentHandler* NewLC( 

            TEMNElement& aElement, TBool aIsAscii );

        /**

        * Destructor

        * @since S60 v3.1

        */

        virtual ~CEMNXMLContentHandler();

        /**

        * Symbian 2-phase constructor

        * @since S60 v3.1

        */

        void ConstructL();

    public: // Following public functions are all from MContentHandler

    	void OnStartDocumentL(

    	    const RDocumentParameters& aDocParam, TInt aErrorCode );

    	void OnEndDocumentL( TInt aErrorCode );

    	void OnStartElementL(

    	    const RTagInfo& aElement, 

    	    const RAttributeArray& aAttributes,

    	    TInt aErrorCode );

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

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

    	void OnStartPrefixMappingL( 

    	    const RString& aPrefix, 

    	    const RString& aUri, 

    	    TInt aErrorCode );

    	void OnEndPrefixMappingL(

    	    const RString& aPrefix, 

    	    TInt aErrorCode );

    	void OnIgnorableWhiteSpaceL(

    	    const TDesC8& aBytes, 

    	    TInt aErrorCode );

    	void OnSkippedEntityL(

    	    const RString& aName, 

    	    TInt aErrorCode );

    	void OnProcessingInstructionL(

    	    const TDesC8& aTarget, 

    	    const TDesC8& aData, 

    	    TInt aErrorCode );

    	void OnError( TInt aErrorCode );

    	TAny* GetExtendedInterface( const TInt32 aUid );

    public: // From MWbxmlExtensionHandler

	    void OnExtensionL( 

	        const RString& aData, 

	        TInt aToken, 

	        TInt aErrorCode );

    private:

        /**

        * Default constructor for class CEMNXMLContentHandler

        * @since S60 v3.1

        * @return, Constructed object

        */

    	CEMNXMLContentHandler( TEMNElement& aElement, TBool aIsAscii );

    	/**

    	* Extracts given attribute from XML message.

    	* @param aAttributeName8 name of the attribute (8-bit)

    	* @param aAttributeValue8 value of the attribute (8-bit)

    	* @since S60 v3.1

    	*/

    	void HandleXMLAttributesL( 

    	    const TDesC8& aAttributeName8, const TDesC8& aAttributeValue8 );

    	/**

    	* Extracts given attribute from WBXML message.

    	* @param aAttributeName8 name of the attribute (8-bit)

    	* @param aAttributeValue8 value of the attribute (8-bit)

    	* @since S60 v3.1

    	*/

    	void HandleWBXMLAttributesL( 

    	    const TDesC8& aAttributeName8, const TDesC8& aAttributeValue8 );

    private:

        // Contains mailbox and timestamp

        TEMNElement&    iElement;

        // Is message XML or WBXML

        TBool           iIsAscii;

        // Mandatory attribute: mailbox

        TBool           iFoundMailboxAttribute;

    };

#endif  // EMNXMLCONTENTHANDLER_H