html_objectimpl.cpp

khtml在gtk上的移植版本

         break;
     case ATTR_WIDTH:
        addCSSLength( attr, CSS_PROP_WIDTH, attr->value() );
        break;
     case ATTR_HEIGHT:
        addCSSLength( attr, CSS_PROP_HEIGHT, attr->value());
        break;
     case ATTR_BORDER:
        addCSSLength(attr, CSS_PROP_BORDER_WIDTH, attr->value());
        addCSSProperty( attr, CSS_PROP_BORDER_TOP_STYLE, CSS_VAL_SOLID );
        addCSSProperty( attr, CSS_PROP_BORDER_RIGHT_STYLE, CSS_VAL_SOLID );
        addCSSProperty( attr, CSS_PROP_BORDER_BOTTOM_STYLE, CSS_VAL_SOLID );
        addCSSProperty( attr, CSS_PROP_BORDER_LEFT_STYLE, CSS_VAL_SOLID );
        break;
     case ATTR_VSPACE:
        addCSSLength(attr, CSS_PROP_MARGIN_TOP, attr->value());
        addCSSLength(attr, CSS_PROP_MARGIN_BOTTOM, attr->value());
        break;
     case ATTR_HSPACE:
        addCSSLength(attr, CSS_PROP_MARGIN_LEFT, attr->value());
        addCSSLength(attr, CSS_PROP_MARGIN_RIGHT, attr->value());
        break;
     case ATTR_ALIGN:
	addHTMLAlignment(attr);
	break;
     case ATTR_VALIGN:
        addCSSProperty(attr, CSS_PROP_VERTICAL_ALIGN, attr->value());
        break;
     case ATTR_PLUGINPAGE:
     case ATTR_PLUGINSPAGE:
        pluginPage = val;
        break;
     case ATTR_HIDDEN:
        if (val.lower()=="yes" || val.lower()=="true") {
            // FIXME: Not dynamic, but it's not really important that such a rarely-used
            // feature work dynamically.
            addCSSLength( attr, CSS_PROP_WIDTH, "0" );
            addCSSLength( attr, CSS_PROP_HEIGHT, "0" );
        }
        break;
     default:
        HTMLElementImpl::parseHTMLAttribute( attr );
  }
}

bool HTMLEmbedElementImpl::rendererIsNeeded(RenderStyle *style)
{
    KHTMLPart *part = getDocument()->part();
    if (!part)
	return false;
    return part->pluginsEnabled() && parentNode()->id() != ID_OBJECT;
}

RenderObject *HTMLEmbedElementImpl::createRenderer(RenderArena *arena, RenderStyle *style)
{
    return new (arena) RenderPartObject(this);
}

void HTMLEmbedElementImpl::attach()
{
    HTMLElementImpl::attach();
    if (m_render) {
        static_cast<RenderPartObject*>(m_render)->updateWidget();
    }
}

bool HTMLEmbedElementImpl::isURLAttribute(AttributeImpl *attr) const
{
    return attr->id() == ATTR_SRC;
}

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

HTMLObjectElementImpl::HTMLObjectElementImpl(DocumentPtr *doc) 
: HTMLElementImpl(doc), m_imageLoader(0)
{
    needWidgetUpdate = false;
}

HTMLObjectElementImpl::~HTMLObjectElementImpl()
{
    delete m_imageLoader;
}

NodeImpl::Id HTMLObjectElementImpl::id() const
{
    return ID_OBJECT;
}

HTMLFormElementImpl *HTMLObjectElementImpl::form() const
{
  return 0;
}

bool HTMLObjectElementImpl::mapToEntry(NodeImpl::Id attr, MappedAttributeEntry& result) const
{
    switch (attr) {
        case ATTR_WIDTH:
        case ATTR_HEIGHT:
            result = eUniversal;
            return false;
        default:
            break;
    }
    
    return HTMLElementImpl::mapToEntry(attr, result);
}

void HTMLObjectElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr)
{
  QString val = attr->value().string();
  int pos;
  switch ( attr->id() )
  {
    case ATTR_TYPE:
      serviceType = val.lower();
      pos = serviceType.find( ";" );
      if ( pos!=-1 )
          serviceType = serviceType.left( pos );
      needWidgetUpdate = true;
      if (!canRenderImageType(serviceType) && m_imageLoader) {
          delete m_imageLoader;
          m_imageLoader = 0;
      }
      break;
    case ATTR_DATA:
      url = khtml::parseURL(  val ).string();
      needWidgetUpdate = true;
      if (m_render && canRenderImageType(serviceType)) {
          if (!m_imageLoader)
              m_imageLoader = new HTMLImageLoader(this);
          m_imageLoader->updateFromElement();
      }
      break;
    case ATTR_WIDTH:
      addCSSLength( attr, CSS_PROP_WIDTH, attr->value());
      break;
    case ATTR_HEIGHT:
      addCSSLength( attr, CSS_PROP_HEIGHT, attr->value());
      break;
    case ATTR_CLASSID:
      classId = val;
      needWidgetUpdate = true;
      break;
    case ATTR_ONLOAD: // ### support load/unload on object elements
        setHTMLEventListener(EventImpl::LOAD_EVENT,
	    getDocument()->createHTMLEventListener(attr->value().string()));
        break;
    case ATTR_ONUNLOAD:
        setHTMLEventListener(EventImpl::UNLOAD_EVENT,
	    getDocument()->createHTMLEventListener(attr->value().string()));
        break;
    default:
      HTMLElementImpl::parseHTMLAttribute( attr );
  }
}

DocumentImpl* HTMLObjectElementImpl::contentDocument() const
{
    // ###
    return 0;
}

bool HTMLObjectElementImpl::rendererIsNeeded(RenderStyle *style)
{
    if (canRenderImageType(serviceType)) {
        return HTMLElementImpl::rendererIsNeeded(style);
    }

    KHTMLPart* part = getDocument()->part();
    if (!part || !part->pluginsEnabled()) {
        return false;
    }
#if APPLE_CHANGES //FIXME:KWIQ: Is this neccessery or not?
    // Eventually we will merge with the better version of this check on the tip of tree.
    // Until then, just leave it out.
#else
    KURL u = getDocument()->completeURL(url);
    for (KHTMLPart* part = w->part()->parentPart(); part; part = part->parentPart())
        if (part->url() == u) {
            return false;
        }
#endif
    return true;
}

RenderObject *HTMLObjectElementImpl::createRenderer(RenderArena *arena, RenderStyle *style)
{
    if (canRenderImageType(serviceType)) {
        return new (arena) RenderImage(this);
    }
    return new (arena) RenderPartObject(this);
}

void HTMLObjectElementImpl::attach()
{
    HTMLElementImpl::attach();

    if (m_render) {
        if (canRenderImageType(serviceType)) {
            if (!m_imageLoader)
                m_imageLoader = new HTMLImageLoader(this);
            m_imageLoader->updateFromElement();
            if (renderer()) {
                RenderImage* imageObj = static_cast<RenderImage*>(renderer());
                imageObj->setImage(m_imageLoader->image());
            }
        } else {
            // If we are already cleared, then it means that we were attach()-ed previously
            // with no renderer. We will actually need to do an update in order to ensure
            // that the plugin shows up.  This fix is necessary to work with async
            // render tree construction caused by stylesheet loads. -dwh
            needWidgetUpdate = false;
        }
    }

    // ### do this when we are actually finished loading instead
    if (m_render)
        dispatchHTMLEvent(EventImpl::LOAD_EVENT,false,false);
}

void HTMLObjectElementImpl::detach()
{
    // Only bother with an unload event if we had a render object.  - dwh
    if (attached() && m_render)
        // ### do this when we are actualy removed from document instead
        dispatchHTMLEvent(EventImpl::UNLOAD_EVENT,false,false);

  HTMLElementImpl::detach();
}

void HTMLObjectElementImpl::recalcStyle( StyleChange ch )
{
    if (needWidgetUpdate) {
        if(m_render && strcmp( m_render->renderName(),  "RenderPartObject" ) == 0 )
            static_cast<RenderPartObject*>(m_render)->updateWidget();
        needWidgetUpdate = false;
    }
    HTMLElementImpl::recalcStyle( ch );
}

bool HTMLObjectElementImpl::isURLAttribute(AttributeImpl *attr) const
{
    return (attr->id() == ATTR_DATA || (attr->id() == ATTR_USEMAP && attr->value().domString()[0] != '#'));
}

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

HTMLParamElementImpl::HTMLParamElementImpl(DocumentPtr *doc)
    : HTMLElementImpl(doc)
{
}

HTMLParamElementImpl::~HTMLParamElementImpl()
{
}

NodeImpl::Id HTMLParamElementImpl::id() const
{
    return ID_PARAM;
}

void HTMLParamElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr)
{
    switch( attr->id() )
    {
    case ATTR_ID:
        // Must call base class so that hasID bit gets set.
        HTMLElementImpl::parseHTMLAttribute(attr);
        if (getDocument()->htmlMode() != DocumentImpl::XHtml) break;
        // fall through
    case ATTR_NAME:
        m_name = attr->value();
        break;
    case ATTR_VALUE:
        m_value = attr->value();
        break;
    }
}

bool HTMLParamElementImpl::isURLAttribute(AttributeImpl *attr) const
{
    if (attr->id() == ATTR_VALUE) {
        AttributeImpl *attr = attributes()->getAttributeItem(ATTR_NAME);
        if (attr) {
            DOMString value = attr->value().string().lower();
            if (value == "src" || value == "movie" || value == "data") {
                return true;
            }
        }
    }
    return false;
}