/*

* Copyright (c) 2000 - 2001 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

#include "nw_style_styleelementhandleri.h"

#include "nw_link_linkelementhandleri.h"

#include "nw_xhtml_xhtmlcontenthandler.h"

#include "BrsrStatusCodes.h"

/* ------------------------------------------------------------------------- *

   class definition

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

const

NW_XHTML_styleElementHandler_Class_t NW_XHTML_styleElementHandler_Class = {

  { /* NW_Object_Core              */

    /* super                       */ &NW_XHTML_ElementHandler_Class,

    /* queryInterface              */ _NW_Object_Core_QueryInterface

  },

  { /* NW_XHTML_ElementHandler     */

    /* initialize                  */ _NW_XHTML_styleElementHandler_Initialize,

    /* createBoxTree               */ _NW_XHTML_styleElementHandler_CreateBoxTree,

    /* processEvent                */ _NW_XHTML_ElementHandler_ProcessEvent

  },

  { /* NW_XHTML_StyleElementHandler */

    /* unused                      */ 0

  }

};

/* ------------------------------------------------------------------------- *

   singleton definition

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

const NW_XHTML_styleElementHandler_t NW_XHTML_styleElementHandler = {

  { { &NW_XHTML_styleElementHandler_Class } }

};

/* ------------------------------------------------------------------------- *

   virtual methods

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

TBrowserStatusCode

_NW_XHTML_styleElementHandler_Initialize (const NW_XHTML_ElementHandler_t* elementHandler,

                                          NW_XHTML_ContentHandler_t* contentHandler,

                                          NW_DOM_ElementNode_t* elementNode)

  {

  NW_Uint32              encoding;

  NW_CSS_Processor_t*    processor;

  NW_Uint32              length;

  NW_String_t            str;

  NW_Bool                doNotDelete = NW_TRUE;

  NW_Bool                deleteBuffer = NW_TRUE;;

  NW_DOM_ElementNode_t*  firstChild = NULL;

  NW_Ucs2*               media = NULL;

  NW_REQUIRED_PARAM(elementHandler);

  NW_TRY (status)

    {

    // Get the media attribute.

    status = NW_XHTML_ElementHandler_GetAttribute(contentHandler, 

        elementNode, NW_XHTML_AttributeToken_media, &media);

    NW_THROW_ON(status, KBrsrOutOfMemory);

    if (media != NULL) 

      {

      NW_Bool  allowable;

      NW_Bool  isHandheld;

      // Ignore if this isn't an allowable style.

      allowable = NW_XHTML_ContentHandler_AllowableStylesheet(media, &isHandheld);

      if (!allowable) 

        {

        NW_THROW_SUCCESS(status);

        }

      // If a "handheld" stylesheet is found switch to mobile profile mode.

      if (isHandheld) 

        {

        NW_XHTML_ContentHandler_EnableMobileProfileMode(contentHandler);

        }

      }

    // Get the element's body.

    firstChild = NW_DOM_Node_getFirstChild(elementNode);

    NW_THROW_ON_NULL(firstChild, status, KBrsrUnexpectedError);

    status = NW_HED_DomHelper_GetText (&(contentHandler->domHelper), 

        firstChild, NW_TRUE, &str, &encoding);

    _NW_THROW_ON_ERROR(status);

    // Process the CSS

    processor = NW_XHTML_ContentHandler_CreateCSSProcessor(contentHandler);

    NW_THROW_ON_NULL(processor, status, KBrsrUnexpectedError);

    length = NW_String_getByteCount(&str);

    if (NW_String_getUserOwnsStorage(&str) == NW_TRUE)

      {

      doNotDelete = NW_FALSE;

      }

    status = NW_CSS_Processor_ProcessBuffer(processor, 

        (NW_Byte*)(str.storage), length, encoding, doNotDelete);

    _NW_THROW_ON_ERROR(status);

    deleteBuffer = NW_FALSE;

    }

  NW_CATCH (status) 

    {

    }

  NW_FINALLY 

    {

    if (deleteBuffer == NW_TRUE)

      {

      NW_String_deleteStorage(&str);

      }

    NW_Str_Delete(media);

    return status;

    } NW_END_TRY

  }

/* ------------------------------------------------------------------------- */

TBrowserStatusCode

_NW_XHTML_styleElementHandler_CreateBoxTree (const NW_XHTML_ElementHandler_t* elementHandler,

                                            NW_XHTML_ContentHandler_t* contentHandler,

                                            NW_DOM_ElementNode_t* elementNode,

                                            NW_LMgr_ContainerBox_t* parentBox)

  {

  NW_REQUIRED_PARAM(elementHandler);

  NW_REQUIRED_PARAM(contentHandler);

  NW_REQUIRED_PARAM(elementNode);

  NW_REQUIRED_PARAM(parentBox);

  return KBrsrSuccess;

  }