C++ HTMLParamElement::name方法代码示例

void RenderApplet::createWidgetIfNecessary()
{
    HTMLAppletElement* element = static_cast<HTMLAppletElement*>(node());
    if (widget() || !element->isFinishedParsingChildren())
        return;

    // FIXME: Java applets can't be resized (this is a bug in Apple's Java implementation).
    // In order to work around this problem and have a correct size from the start, we will
    // use fixed widths/heights from the style system when we can, since the widget might
    // not have an accurate m_width/m_height.
    int contentWidth = style()->width().isFixed() ? style()->width().value() : 
        width() - borderAndPaddingWidth();
    int contentHeight = style()->height().isFixed() ? style()->height().value() :
        height() - borderAndPaddingHeight();
    for (Node* child = element->firstChild(); child; child = child->nextSibling()) {
        if (child->hasTagName(paramTag)) {
            HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
            if (!p->name().isEmpty())
                m_args.set(p->name(), p->value());
        }
    }

    Frame* frame = document()->frame();
    ASSERT(frame);
    setWidget(frame->loader()->createJavaAppletWidget(IntSize(contentWidth, contentHeight), element, m_args));
}

// FIXME: This function should not deal with url or serviceType!
void HTMLObjectElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues, String& url, String& serviceType)
{
    HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
    String urlParameter;
    
    // Scan the PARAM children and store their name/value pairs.
    // Get the URL and type from the params if we don't already have them.
    for (Node* child = firstChild(); child; child = child->nextSibling()) {
        if (!child->hasTagName(paramTag))
            continue;

        HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
        String name = p->name();
        if (name.isEmpty())
            continue;

        uniqueParamNames.add(name.impl());
        paramNames.append(p->name());
        paramValues.append(p->value());

        // FIXME: url adjustment does not belong in this function.
        if (url.isEmpty() && urlParameter.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url")))
            urlParameter = stripLeadingAndTrailingHTMLSpaces(p->value());
        // FIXME: serviceType calculation does not belong in this function.
        if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) {
            serviceType = p->value();
            size_t pos = serviceType.find(";");
            if (pos != notFound)
                serviceType = serviceType.left(pos);
        }
    }
    
    // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
    // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
    // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
    // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
    // else our Java plugin will misinterpret it. [4004531]
    String codebase;
    if (MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
        codebase = "codebase";
        uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
    }
    
    // Turn the attributes of the <object> element into arrays, but don't override <param> values.
    if (hasAttributes()) {
        for (unsigned i = 0; i < attributeCount(); ++i) {
            Attribute* it = attributeItem(i);
            const AtomicString& name = it->name().localName();
            if (!uniqueParamNames.contains(name.impl())) {
                paramNames.append(name.string());
                paramValues.append(it->value().string());
            }
        }
    }
    
    mapDataParamToSrc(&paramNames, &paramValues);
    
    // HTML5 says that an object resource's URL is specified by the object's data
    // attribute, not by a param element. However, for compatibility, allow the
    // resource's URL to be given by a param named "src", "movie", "code" or "url"
    // if we know that resource points to a plug-in.
    if (url.isEmpty() && !urlParameter.isEmpty()) {
        SubframeLoader* loader = document()->frame()->loader()->subframeLoader();
        if (loader->resourceWillUsePlugin(urlParameter, serviceType, shouldPreferPlugInsForImages()))
            url = urlParameter;
    }
}

// FIXME: This function should not deal with url or serviceType!
void HTMLObjectElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues, String& url, String& serviceType)
{
    HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
    String urlParameter;

    // Scan the PARAM children and store their name/value pairs.
    // Get the URL and type from the params if we don't already have them.
    for (HTMLParamElement* p = Traversal<HTMLParamElement>::firstChild(*this); p; p = Traversal<HTMLParamElement>::nextSibling(*p)) {
        String name = p->name();
        if (name.isEmpty())
            continue;

        uniqueParamNames.add(name.impl());
        paramNames.append(p->name());
        paramValues.append(p->value());

        // FIXME: url adjustment does not belong in this function.
        if (url.isEmpty() && urlParameter.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url")))
            urlParameter = stripLeadingAndTrailingHTMLSpaces(p->value());
        // FIXME: serviceType calculation does not belong in this function.
        if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) {
            serviceType = p->value();
            size_t pos = serviceType.find(";");
            if (pos != kNotFound)
                serviceType = serviceType.left(pos);
        }
    }

    // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
    // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
    // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
    // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
    // else our Java plugin will misinterpret it. [4004531]
    String codebase;
    if (MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
        codebase = "codebase";
        uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
    }

    // Turn the attributes of the <object> element into arrays, but don't override <param> values.
    AttributeCollection attributes = this->attributes();
    for (const Attribute& attribute : attributes) {
        const AtomicString& name = attribute.name().localName();
        if (!uniqueParamNames.contains(name.impl())) {
            paramNames.append(name.string());
            paramValues.append(attribute.value().string());
        }
    }

    mapDataParamToSrc(&paramNames, &paramValues);

    // HTML5 says that an object resource's URL is specified by the object's data
    // attribute, not by a param element. However, for compatibility, allow the
    // resource's URL to be given by a param named "src", "movie", "code" or "url"
    // if we know that resource points to a plug-in.
    if (url.isEmpty() && !urlParameter.isEmpty()) {
        KURL completedURL = document().completeURL(urlParameter);
        bool useFallback;
        if (shouldUsePlugin(completedURL, serviceType, false, useFallback))
            url = urlParameter;
    }
}

void RenderPartObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
  String url;
  String serviceType;
  Vector<String> paramNames;
  Vector<String> paramValues;
  Frame* frame = m_view->frame();
  
  if (element()->hasTagName(objectTag)) {

      HTMLObjectElement* o = static_cast<HTMLObjectElement*>(element());

      o->setNeedWidgetUpdate(false);
      if (!o->isFinishedParsingChildren())
        return;
      // Check for a child EMBED tag.
      HTMLEmbedElement* embed = 0;
      for (Node* child = o->firstChild(); child;) {
          if (child->hasTagName(embedTag)) {
              embed = static_cast<HTMLEmbedElement*>(child);
              break;
          } else if (child->hasTagName(objectTag))
              child = child->nextSibling();         // Don't descend into nested OBJECT tags
          else
              child = child->traverseNextNode(o);   // Otherwise descend (EMBEDs may be inside COMMENT tags)
      }
      
      // Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.
      HTMLElement *embedOrObject;
      if (embed) {
          embedOrObject = (HTMLElement *)embed;
          url = embed->url();
          serviceType = embed->serviceType();
      } else
          embedOrObject = (HTMLElement *)o;
      
      // If there was no URL or type defined in EMBED, try the OBJECT tag.
      if (url.isEmpty())
          url = o->m_url;
      if (serviceType.isEmpty())
          serviceType = o->m_serviceType;
      
      HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;
      
      // Scan the PARAM children.
      // Get the URL and type from the params if we don't already have them.
      // Get the attributes from the params if there is no EMBED tag.
      Node *child = o->firstChild();
      while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {
          if (child->hasTagName(paramTag)) {
              HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
              String name = p->name().lower();
              if (url.isEmpty() && (name == "src" || name == "movie" || name == "code" || name == "url"))
                  url = p->value();
              if (serviceType.isEmpty() && name == "type") {
                  serviceType = p->value();
                  int pos = serviceType.find(";");
                  if (pos != -1)
                      serviceType = serviceType.left(pos);
              }
              if (!embed && !name.isEmpty()) {
                  uniqueParamNames.add(p->name().impl());
                  paramNames.append(p->name());
                  paramValues.append(p->value());
              }
          }
          child = child->nextSibling();
      }
      
      // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
      // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
      // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
      // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
      // else our Java plugin will misinterpret it. [4004531]
      String codebase;
      if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
          codebase = "codebase";
          uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
      }
      
      // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
      NamedAttrMap* attributes = embedOrObject->attributes();
      if (attributes) {
          for (unsigned i = 0; i < attributes->length(); ++i) {
              Attribute* it = attributes->attributeItem(i);
              const AtomicString& name = it->name().localName();
              if (embed || !uniqueParamNames.contains(name.impl())) {
                  paramNames.append(name.string());
                  paramValues.append(it->value().string());
              }
          }
      }
      
      // If we still don't have a type, try to map from a specific CLASSID to a type.
      if (serviceType.isEmpty() && !o->m_classId.isEmpty())
          mapClassIdToServiceType(o->m_classId, serviceType);
      
      if (!isURLAllowed(document(), url))
          return;

//.........这里部分代码省略.........

void HTMLAppletElement::updateWidgetInternal()
{
    setNeedsWidgetUpdate(false);
    // FIXME: This should ASSERT isFinishedParsingChildren() instead.
    if (!isFinishedParsingChildren())
        return;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();

    LocalFrame* frame = document().frame();
    ASSERT(frame);

    Vector<String> paramNames;
    Vector<String> paramValues;

    const AtomicString& codeBase = getAttribute(codebaseAttr);
    if (!codeBase.isNull()) {
        KURL codeBaseURL = document().completeURL(codeBase);
        paramNames.append("codeBase");
        paramValues.append(codeBase.string());
    }

    const AtomicString& archive = getAttribute(archiveAttr);
    if (!archive.isNull()) {
        paramNames.append("archive");
        paramValues.append(archive.string());
    }

    const AtomicString& code = getAttribute(codeAttr);
    paramNames.append("code");
    paramValues.append(code.string());

    // If the 'codebase' attribute is set, it serves as a relative root for the file that the Java
    // plugin will load. If the 'code' attribute is set, and the 'archive' is not set, then we need
    // to check the url generated by resolving 'code' against 'codebase'. If the 'archive'
    // attribute is set, then 'code' points to a class inside the archive, so we need to check the
    // url generated by resolving 'archive' against 'codebase'.
    KURL urlToCheck;
    KURL rootURL = codeBase.isNull() ? document().url() : document().completeURL(codeBase);
    if (!archive.isNull())
        urlToCheck = KURL(rootURL, archive);
    else if (!code.isNull())
        urlToCheck = KURL(rootURL, code);
    if (!canEmbedURL(urlToCheck))
        return;

    const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute();
    if (!name.isNull()) {
        paramNames.append("name");
        paramValues.append(name.string());
    }

    paramNames.append("baseURL");
    KURL baseURL = document().baseURL();
    paramValues.append(baseURL.string());

    const AtomicString& mayScript = getAttribute(mayscriptAttr);
    if (!mayScript.isNull()) {
        paramNames.append("mayScript");
        paramValues.append(mayScript.string());
    }

    for (HTMLParamElement* param = Traversal<HTMLParamElement>::firstChild(*this); param; param = Traversal<HTMLParamElement>::nextSibling(*param)) {
        if (param->name().isEmpty())
            continue;

        paramNames.append(param->name());
        paramValues.append(param->value());
    }

    OwnPtrWillBeRawPtr<PluginPlaceholder> placeholder = nullptr;
    RefPtrWillBeRawPtr<Widget> widget = nullptr;
    if (frame->loader().allowPlugins(AboutToInstantiatePlugin)) {
        placeholder = frame->loader().client()->createPluginPlaceholder(document(), KURL(), paramNames, paramValues, m_serviceType, false);
        if (!placeholder)
            widget = frame->loader().client()->createJavaAppletWidget(this, baseURL, paramNames, paramValues);
    }

    if (!placeholder && !widget) {
        if (!renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        setPlaceholder(nullptr);
    } else if (placeholder) {
        setPlaceholder(placeholder.release());
    } else if (widget) {
        document().setContainsPlugins();
        setWidget(widget);
        setPlaceholder(nullptr);
    }
}

void HTMLAppletElement::updateWidget(PluginCreationOption)
{
    setNeedsWidgetUpdate(false);
    // FIXME: This should ASSERT isFinishedParsingChildren() instead.
    if (!isFinishedParsingChildren())
        return;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();

    Frame* frame = document().frame();
    ASSERT(frame);

    LayoutUnit contentWidth = renderer->style()->width().isFixed() ? LayoutUnit(renderer->style()->width().value()) :
        renderer->width() - renderer->borderAndPaddingWidth();
    LayoutUnit contentHeight = renderer->style()->height().isFixed() ? LayoutUnit(renderer->style()->height().value()) :
        renderer->height() - renderer->borderAndPaddingHeight();

    Vector<String> paramNames;
    Vector<String> paramValues;

    paramNames.append("code");
    paramValues.append(getAttribute(codeAttr).string());

    const AtomicString& codeBase = getAttribute(codebaseAttr);
    if (!codeBase.isNull()) {
        KURL codeBaseURL = document().completeURL(codeBase);
        if (!document().securityOrigin()->canDisplay(codeBaseURL)) {
            FrameLoader::reportLocalLoadFailed(frame, codeBaseURL.string());
            return;
        }
        const char javaAppletMimeType[] = "application/x-java-applet";
        if (!document().contentSecurityPolicy()->allowObjectFromSource(codeBaseURL)
            || !document().contentSecurityPolicy()->allowPluginType(javaAppletMimeType, javaAppletMimeType, codeBaseURL))
            return;
        paramNames.append("codeBase");
        paramValues.append(codeBase.string());
    }

    const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute();
    if (!name.isNull()) {
        paramNames.append("name");
        paramValues.append(name.string());
    }

    const AtomicString& archive = getAttribute(archiveAttr);
    if (!archive.isNull()) {
        paramNames.append("archive");
        paramValues.append(archive.string());
    }

    paramNames.append("baseURL");
    KURL baseURL = document().baseURL();
    paramValues.append(baseURL.string());

    const AtomicString& mayScript = getAttribute(mayscriptAttr);
    if (!mayScript.isNull()) {
        paramNames.append("mayScript");
        paramValues.append(mayScript.string());
    }

    for (Node* child = firstChild(); child; child = child->nextSibling()) {
        if (!child->hasTagName(paramTag))
            continue;

        HTMLParamElement* param = toHTMLParamElement(child);
        if (param->name().isEmpty())
            continue;

        paramNames.append(param->name());
        paramValues.append(param->value());
    }

    RefPtr<Widget> widget;
    if (frame->loader()->allowPlugins(AboutToInstantiatePlugin))
        widget = frame->loader()->client()->createJavaAppletWidget(roundedIntSize(LayoutSize(contentWidth, contentHeight)), this, baseURL, paramNames, paramValues);

    if (!widget) {
        if (!renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return;
    }
    frame->loader()->setContainsPlugins();
    renderer->setWidget(widget);
}

void RenderEmbeddedObject::updateWidget(bool onlyCreateNonNetscapePlugins)
{
    if (!m_replacementText.isNull() || !node()) // Check the node in case destroy() has been called.
        return;

    String url;
    String serviceType;
    Vector<String> paramNames;
    Vector<String> paramValues;
    Frame* frame = frameView()->frame();

    // The calls to SubframeLoader::requestObject within this function can result in a plug-in being initialized.
    // This can run cause arbitrary JavaScript to run and may result in this RenderObject being detached from
    // the render tree and destroyed, causing a crash like <rdar://problem/6954546>.  By extending our lifetime
    // artifically to ensure that we remain alive for the duration of plug-in initialization.
    RenderWidgetProtector protector(this);

    if (node()->hasTagName(objectTag)) {
        HTMLObjectElement* objectElement = static_cast<HTMLObjectElement*>(node());

        objectElement->setNeedWidgetUpdate(false);
        if (!objectElement->isFinishedParsingChildren())
          return;

        // Check for a child EMBED tag.
        HTMLEmbedElement* embed = 0;
        for (Node* child = objectElement->firstChild(); child; ) {
            if (child->hasTagName(embedTag)) {
                embed = static_cast<HTMLEmbedElement*>(child);
                break;
            }
            
            if (child->hasTagName(objectTag))
                child = child->nextSibling(); // Don't descend into nested OBJECT tags
            else
                child = child->traverseNextNode(objectElement); // Otherwise descend (EMBEDs may be inside COMMENT tags)
        }

        // Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT.
        HTMLElement* embedOrObject;
        if (embed) {
            embedOrObject = embed;
            url = embed->url();
            serviceType = embed->serviceType();
        } else
            embedOrObject = objectElement;

        // If there was no URL or type defined in EMBED, try the OBJECT tag.
        if (url.isEmpty())
            url = objectElement->url();
        if (serviceType.isEmpty())
            serviceType = objectElement->serviceType();

        HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames;

        // Scan the PARAM children.
        // Get the URL and type from the params if we don't already have them.
        // Get the attributes from the params if there is no EMBED tag.
        Node* child = objectElement->firstChild();
        while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) {
            if (child->hasTagName(paramTag)) {
                HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
                String name = p->name();
                if (url.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url")))
                    url = p->value();
                if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) {
                    serviceType = p->value();
                    int pos = serviceType.find(";");
                    if (pos != -1)
                        serviceType = serviceType.left(pos);
                }
                if (!embed && !name.isEmpty()) {
                    uniqueParamNames.add(name.impl());
                    paramNames.append(p->name());
                    paramValues.append(p->value());
                }
            }
            child = child->nextSibling();
        }

        // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag
        // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is
        // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means
        // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM,
        // else our Java plugin will misinterpret it. [4004531]
        String codebase;
        if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) {
            codebase = "codebase";
            uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already
        }
        
        // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values.
        NamedNodeMap* attributes = embedOrObject->attributes();
        if (attributes) {
            for (unsigned i = 0; i < attributes->length(); ++i) {
                Attribute* it = attributes->attributeItem(i);
                const AtomicString& name = it->name().localName();
                if (embed || !uniqueParamNames.contains(name.impl())) {
                    paramNames.append(name.string());
                    paramValues.append(it->value().string());
//.........这里部分代码省略.........

void HTMLAppletElement::updateWidgetInternal()
{
    ASSERT(!m_isDelayingLoadEvent);
    setNeedsWidgetUpdate(false);
    // FIXME: This should ASSERT isFinishedParsingChildren() instead.
    if (!isFinishedParsingChildren())
        return;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();

    Frame* frame = document().frame();
    ASSERT(frame);

    LayoutUnit contentWidth = renderer->style()->width().isFixed() ? LayoutUnit(renderer->style()->width().value()) :
        renderer->width() - renderer->borderAndPaddingWidth();
    LayoutUnit contentHeight = renderer->style()->height().isFixed() ? LayoutUnit(renderer->style()->height().value()) :
        renderer->height() - renderer->borderAndPaddingHeight();

    Vector<String> paramNames;
    Vector<String> paramValues;

    const AtomicString& codeBase = getAttribute(codebaseAttr);
    if (!codeBase.isNull()) {
        KURL codeBaseURL = document().completeURL(codeBase);
        paramNames.append("codeBase");
        paramValues.append(codeBase.string());
    }

    const AtomicString& archive = getAttribute(archiveAttr);
    if (!archive.isNull()) {
        paramNames.append("archive");
        paramValues.append(archive.string());
    }

    const AtomicString& code = getAttribute(codeAttr);
    paramNames.append("code");
    paramValues.append(code.string());

    // If the 'codebase' attribute is set, it serves as a relative root for the file that the Java
    // plugin will load. If the 'code' attribute is set, and the 'archive' is not set, then we need
    // to check the url generated by resolving 'code' against 'codebase'. If the 'archive'
    // attribute is set, then 'code' points to a class inside the archive, so we need to check the
    // url generated by resolving 'archive' against 'codebase'.
    KURL urlToCheck;
    KURL rootURL = codeBase.isNull() ? document().url() : document().completeURL(codeBase);
    if (!archive.isNull())
        urlToCheck = KURL(rootURL, archive);
    else if (!code.isNull())
        urlToCheck = KURL(rootURL, code);
    if (!canEmbedURL(urlToCheck))
        return;

    const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute();
    if (!name.isNull()) {
        paramNames.append("name");
        paramValues.append(name.string());
    }

    paramNames.append("baseURL");
    KURL baseURL = document().baseURL();
    paramValues.append(baseURL.string());

    const AtomicString& mayScript = getAttribute(mayscriptAttr);
    if (!mayScript.isNull()) {
        paramNames.append("mayScript");
        paramValues.append(mayScript.string());
    }

    for (Node* child = firstChild(); child; child = child->nextSibling()) {
        if (!child->hasTagName(paramTag))
            continue;

        HTMLParamElement* param = toHTMLParamElement(child);
        if (param->name().isEmpty())
            continue;

        paramNames.append(param->name());
        paramValues.append(param->value());
    }

    RefPtr<Widget> widget;
    if (frame->loader().allowPlugins(AboutToInstantiatePlugin))
        widget = frame->loader().client()->createJavaAppletWidget(roundedIntSize(LayoutSize(contentWidth, contentHeight)), this, baseURL, paramNames, paramValues);

    if (!widget) {
        if (!renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return;
    }
    document().setContainsPlugins();
    renderer->setWidget(widget);
}