1 /** @file

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies  this distribution, and is available 

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Declares the CUpnpArgumentContentHandler class

    15  *

    16 */

    17 

    18 

    19 #ifndef __UPNPARGUMENTCONTENTHANDLER_H__

    20 #define __UPNPARGUMENTCONTENTHANDLER_H__

    21 

    22 #include <babitflags.h>

    23 #include "upnpcontenthandler.h"

    24 

    25 class CUpnpArgument;

    26 

    27 using namespace Xml;

    28 

    29 /**

    30  *  This class handles argument subtree of service descriptions

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

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

    33  *

    34  *  @since Series60 2.6

    35  */

    36 NONSHARABLE_CLASS( CUpnpArgumentContentHandler ) : public CUpnpContentHandler

    37     {

    38 protected:

    39     enum TState

    40         {

    41         EInitial,

    42         EName,

    43         EDirection,

    44         ERelatedStateVariable

    45         };

    46 

    47 public:

    48 

    49     /**

    50      * Two-phased constructor

    51      * @since Series60 3.2 

    52      * @return instance of CUpnpArgumentContentHandler class

    53      */

    54     static CUpnpArgumentContentHandler* NewL(

    55             CUpnpContentHandlersController& aController, 

    56             CUpnpArgument& aResultAction );

    57 

    58     /**

    59      * Two-phased constructor. Leaves the object on CleanupStack

    60      * @since Series60 3.2 

    61      * @return instance of CUpnpArgumentContentHandler class

    62      */

    63     static CUpnpArgumentContentHandler* NewLC(

    64             CUpnpContentHandlersController& aController, 

    65             CUpnpArgument& aResultAction );

    66 

    67     /**

    68      * Destructor of CUpnpArgumentContentHandler class

    69      * @since Series60 3.2     

    70      */

    71     virtual ~CUpnpArgumentContentHandler();

    72 

    73 public: // from MContentHandler

    74 

    75     /**

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

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

    78      * @param				aAttributes contains the attributes for the element.

    79      */

    80     virtual void OnStartElementL( const RTagInfo& aElement, 

    81         const RAttributeArray& aAttributes );

    82 

    83     /**

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

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

    86      */

    87     virtual void OnEndElementL( const RTagInfo& aElement );

    88 

    89     /**

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

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

    92      */

    93     virtual void OnContentL( const TDesC8& aBytes );

    94 

    95 protected:

    96 

    97     /**

    98      * Default C++ constructor 

    99      * @since Series60 3.2     

   100      */

   101     CUpnpArgumentContentHandler( CUpnpContentHandlersController& aController,

   102             CUpnpArgument& aResultAction );

   103 

   104 private:

   105     CUpnpArgument& iResultArgument;

   106     TState iCurrentState;

   107     TBitFlags8 iFoundTags;

   108 

   109     };

   110 

   111 #endif //__UPNPARGUMENTCONTENTHANDLER_H__