/** @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:  Implements the CUpnpActionContentHandler class

 *

*/

#include "upnpallowedvaluerangecontenthandler.h"

#include "upnpcontenthandlerscontroller.h"

#include "upnpignorecontenthandler.h"

#include "upnpstatevariable.h"

#include "upnpserviceliterals.h"

//const TUint8 KReqiuredTagsBoundary( 3 ) 

const TUint8 KReqiuredTagsBoundary( 0 );    

enum TFlagsPositions

    {

    EMinimumPos = 0,

    EMaximumPos,

    EStepPos //optional

    };

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::NewL

// Two-phased constructor

// -----------------------------------------------------------------------------

//

CUpnpAllowedValueRangeContentHandler* CUpnpAllowedValueRangeContentHandler::NewL(

    CUpnpContentHandlersController& aController,

    CUpnpStateVariable& aResultStateVariable )

    {

    CUpnpAllowedValueRangeContentHandler* actionContentHandler = 

        CUpnpAllowedValueRangeContentHandler::NewLC( aController, aResultStateVariable );

    CleanupStack::Pop( actionContentHandler );

    return actionContentHandler;

    }

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::NewLC

// Two-phased constructor. Leaves teh object on the CleanupStack

// -----------------------------------------------------------------------------

//

CUpnpAllowedValueRangeContentHandler* CUpnpAllowedValueRangeContentHandler::NewLC(

    CUpnpContentHandlersController& aController,

    CUpnpStateVariable& aResultStateVariable )

    {

    CUpnpAllowedValueRangeContentHandler* actionContentHandler = 

        new (ELeave) CUpnpAllowedValueRangeContentHandler( aController, 

            aResultStateVariable );

    CleanupStack::PushL( actionContentHandler );

    return actionContentHandler;

    }

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::~CUpnpAllowedValueRangeContentHandler

// Destructor of CUpnpAllowedValueRangeContentHandler class 

// -----------------------------------------------------------------------------

//

CUpnpAllowedValueRangeContentHandler::~CUpnpAllowedValueRangeContentHandler()

    {

    }

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::CUpnpAllowedValueRangeContentHandler

// Constructor

// -----------------------------------------------------------------------------

//

CUpnpAllowedValueRangeContentHandler::CUpnpAllowedValueRangeContentHandler(

    CUpnpContentHandlersController& aController,

    CUpnpStateVariable& aResultStateVariable ) :

        CUpnpContentHandler( aController ),

        iResultStateVariable( aResultStateVariable ),

        iCurrentState( EInitial )

    {

    }

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::OnStartElementL

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

// -----------------------------------------------------------------------------

//

void CUpnpAllowedValueRangeContentHandler::OnStartElementL(

    const RTagInfo& aElement, const RAttributeArray& /*aAttributes*/ )

    {

    if ( iCurrentState == EInitial )

        {

        const TDesC8& elementName( aElement.LocalName().DesC() );

        if ( elementName.Compare(KUpnpMinimum) == 0 )

            {

            RepeatedTagCheckL( EMinimumPos, iFoundTags );

            iCurrentState = EMinimum;

            }

        else if ( elementName.Compare(KUpnpMaximum) == 0 )

            {

            RepeatedTagCheckL( EMaximumPos, iFoundTags );

            iCurrentState = EMaximum;

            }

        else if ( elementName.Compare(KUpnpStep) == 0 )

            {

            RepeatedTagCheckL( EStepPos, iFoundTags );

            iCurrentState = EStep;

            }

        else

            {

            iController.SetCurrentContentHandlerL( 

                    CUpnpIgnoreContentHandler::NewL( iController ) 

                                        );

            }

        }

    else

        {

        iController.SetCurrentContentHandlerL( 

            CUpnpIgnoreContentHandler::NewL( iController ) );

        //User::Leave( KErrArgument ) //content="textOnly"  not checked now

        }

    }

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::OnEndElementL

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

// -----------------------------------------------------------------------------

//

void CUpnpAllowedValueRangeContentHandler::OnEndElementL(

    const RTagInfo& aElement )

    {

    switch ( iCurrentState )

        {

        case EInitial:

            ASSERT(aElement.LocalName().DesC().Compare(KUpnpAllowedValueRange)==0);

            if ( (iFoundTags.iFlags & KReqiuredTagsBoundary)

                    == KReqiuredTagsBoundary )

                {

                iController.SetPreviousContentHandler();

                }

            else

                {

                User::Leave( KErrArgument ); //required tag not found

                }

            break;

        default:

            iCurrentState = EInitial;

        }

    }

// -----------------------------------------------------------------------------

// CUpnpAllowedValueRangeContentHandler::OnContentL

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

// aErrorCode must be KErrNone, and that aBytes should contains complete

// content (one chunk).

// -----------------------------------------------------------------------------

//

void CUpnpAllowedValueRangeContentHandler::OnContentL( const TDesC8& aBytes )

    {

    switch ( iCurrentState )

        {

        case EMinimum:

            iResultStateVariable.SetRangeMinL( aBytes );

            break;

        case EMaximum:

            iResultStateVariable.SetRangeMaxL( aBytes );

            break;

        case EStep:

            iResultStateVariable.SetRangeStepL( aBytes );

            break;

        default:

            //User::Leave( KErrArgument ) 

            break;

        }

    }

//  End of File