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+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * (C) 2000 Stefan Schimanski (1Stein@gmx.de)
+ * Copyright (C) 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "HTMLEmbedElement.h"
+
+#include "Attribute.h"
+#include "CSSPropertyNames.h"
+#include "DocumentLoader.h"
+#include "Frame.h"
+#include "HTMLDocument.h"
+#include "HTMLImageLoader.h"
+#include "HTMLNames.h"
+#include "HTMLObjectElement.h"
+#include "HTMLParserIdioms.h"
+#include "MainResourceLoader.h"
+#include "PluginDocument.h"
+#include "RenderEmbeddedObject.h"
+#include "RenderImage.h"
+#include "RenderWidget.h"
+#include "ScriptController.h"
+#include "Settings.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+inline HTMLEmbedElement::HTMLEmbedElement(const QualifiedName& tagName, Document* document, bool createdByParser)
+ : HTMLPlugInImageElement(tagName, document, createdByParser)
+{
+ ASSERT(hasTagName(embedTag));
+}
+
+PassRefPtr<HTMLEmbedElement> HTMLEmbedElement::create(const QualifiedName& tagName, Document* document, bool createdByParser)
+{
+ return adoptRef(new HTMLEmbedElement(tagName, document, createdByParser));
+}
+
+static inline RenderWidget* findWidgetRenderer(const Node* n)
+{
+ if (!n->renderer())
+ do
+ n = n->parentNode();
+ while (n && !n->hasTagName(objectTag));
+
+ if (n && n->renderer() && n->renderer()->isWidget())
+ return toRenderWidget(n->renderer());
+
+ return 0;
+}
+
+RenderWidget* HTMLEmbedElement::renderWidgetForJSBindings() const
+{
+ document()->updateLayoutIgnorePendingStylesheets();
+ return findWidgetRenderer(this);
+}
+
+bool HTMLEmbedElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
+{
+ if (attrName == hiddenAttr) {
+ result = eUniversal;
+ return false;
+ }
+
+ return HTMLPlugInImageElement::mapToEntry(attrName, result);
+}
+
+void HTMLEmbedElement::parseMappedAttribute(Attribute* attr)
+{
+ const AtomicString& value = attr->value();
+
+ if (attr->name() == typeAttr) {
+ m_serviceType = value.string().lower();
+ size_t pos = m_serviceType.find(";");
+ if (pos != notFound)
+ m_serviceType = m_serviceType.left(pos);
+ if (!isImageType() && m_imageLoader)
+ m_imageLoader.clear();
+ } else if (attr->name() == codeAttr)
+ m_url = stripLeadingAndTrailingHTMLSpaces(value.string());
+ else if (attr->name() == srcAttr) {
+ m_url = stripLeadingAndTrailingHTMLSpaces(value.string());
+ if (renderer() && isImageType()) {
+ if (!m_imageLoader)
+ m_imageLoader = adoptPtr(new HTMLImageLoader(this));
+ m_imageLoader->updateFromElementIgnoringPreviousError();
+ }
+ } else if (attr->name() == hiddenAttr) {
+ if (equalIgnoringCase(value.string(), "yes") || equalIgnoringCase(value.string(), "true")) {
+ // FIXME: Not dynamic, since we add this but don't remove it, but it may be OK for now
+ // that this rarely-used attribute won't work properly if you remove it.
+ addCSSLength(attr, CSSPropertyWidth, "0");
+ addCSSLength(attr, CSSPropertyHeight, "0");
+ }
+ } else if (attr->name() == nameAttr) {
+ if (inDocument() && document()->isHTMLDocument()) {
+ HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
+ document->removeNamedItem(m_name);
+ document->addNamedItem(value);
+ }
+ m_name = value;
+ } else
+ HTMLPlugInImageElement::parseMappedAttribute(attr);
+}
+
+void HTMLEmbedElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues)
+{
+ NamedNodeMap* attributes = this->attributes(true);
+ if (!attributes)
+ return;
+
+ for (unsigned i = 0; i < attributes->length(); ++i) {
+ Attribute* it = attributes->attributeItem(i);
+ paramNames.append(it->localName().string());
+ paramValues.append(it->value().string());
+ }
+}
+
+// FIXME: This should be unified with HTMLObjectElement::updateWidget and
+// moved down into HTMLPluginImageElement.cpp
+void HTMLEmbedElement::updateWidget(PluginCreationOption pluginCreationOption)
+{
+ ASSERT(!renderEmbeddedObject()->pluginCrashedOrWasMissing());
+ // FIXME: We should ASSERT(needsWidgetUpdate()), but currently
+ // FrameView::updateWidget() calls updateWidget(false) without checking if
+ // the widget actually needs updating!
+ setNeedsWidgetUpdate(false);
+
+ if (m_url.isEmpty() && m_serviceType.isEmpty())
+ return;
+
+ // Note these pass m_url and m_serviceType to allow better code sharing with
+ // <object> which modifies url and serviceType before calling these.
+ if (!allowedToLoadFrameURL(m_url))
+ return;
+ // FIXME: It's sadness that we have this special case here.
+ // See http://trac.webkit.org/changeset/25128 and
+ // plugins/netscape-plugin-setwindow-size.html
+ if (pluginCreationOption == CreateOnlyNonNetscapePlugins && wouldLoadAsNetscapePlugin(m_url, m_serviceType))
+ return;
+
+ // FIXME: These should be joined into a PluginParameters class.
+ Vector<String> paramNames;
+ Vector<String> paramValues;
+ parametersForPlugin(paramNames, paramValues);
+
+ ASSERT(!m_inBeforeLoadEventHandler);
+ m_inBeforeLoadEventHandler = true;
+ bool beforeLoadAllowedLoad = dispatchBeforeLoadEvent(m_url);
+ m_inBeforeLoadEventHandler = false;
+
+ if (!beforeLoadAllowedLoad) {
+ if (document()->isPluginDocument()) {
+ // Plugins inside plugin documents load differently than other plugins. By the time
+ // we are here in a plugin document, the load of the plugin (which is the plugin document's
+ // main resource) has already started. We need to explicitly cancel the main resource load here.
+ toPluginDocument(document())->cancelManualPluginLoad();
+ }
+ return;
+ }
+
+ SubframeLoader* loader = document()->frame()->loader()->subframeLoader();
+ // FIXME: beforeLoad could have detached the renderer! Just like in the <object> case above.
+ loader->requestObject(this, m_url, getAttribute(nameAttr), m_serviceType, paramNames, paramValues);
+}
+
+bool HTMLEmbedElement::rendererIsNeeded(RenderStyle* style)
+{
+ if (isImageType())
+ return HTMLPlugInImageElement::rendererIsNeeded(style);
+
+ Frame* frame = document()->frame();
+ if (!frame)
+ return false;
+
+ // If my parent is an <object> and is not set to use fallback content, I
+ // should be ignored and not get a renderer.
+ ContainerNode* p = parentNode();
+ if (p && p->hasTagName(objectTag)) {
+ ASSERT(p->renderer());
+ if (!static_cast<HTMLObjectElement*>(p)->useFallbackContent()) {
+ ASSERT(!p->renderer()->isEmbeddedObject());
+ return false;
+ }
+ }
+
+#if ENABLE(DASHBOARD_SUPPORT)
+ // Workaround for <rdar://problem/6642221>.
+ if (Settings* settings = frame->settings()) {
+ if (settings->usesDashboardBackwardCompatibilityMode())
+ return true;
+ }
+#endif
+
+ return HTMLPlugInImageElement::rendererIsNeeded(style);
+}
+
+void HTMLEmbedElement::insertedIntoDocument()
+{
+ if (document()->isHTMLDocument())
+ static_cast<HTMLDocument*>(document())->addNamedItem(m_name);
+
+ String width = getAttribute(widthAttr);
+ String height = getAttribute(heightAttr);
+ if (!width.isEmpty() || !height.isEmpty()) {
+ Node* n = parentNode();
+ while (n && !n->hasTagName(objectTag))
+ n = n->parentNode();
+ if (n) {
+ if (!width.isEmpty())
+ static_cast<HTMLObjectElement*>(n)->setAttribute(widthAttr, width);
+ if (!height.isEmpty())
+ static_cast<HTMLObjectElement*>(n)->setAttribute(heightAttr, height);
+ }
+ }
+
+ HTMLPlugInImageElement::insertedIntoDocument();
+}
+
+void HTMLEmbedElement::removedFromDocument()
+{
+ if (document()->isHTMLDocument())
+ static_cast<HTMLDocument*>(document())->removeNamedItem(m_name);
+
+ HTMLPlugInImageElement::removedFromDocument();
+}
+
+void HTMLEmbedElement::attributeChanged(Attribute* attr, bool preserveDecls)
+{
+ HTMLPlugInImageElement::attributeChanged(attr, preserveDecls);
+
+ if ((attr->name() == widthAttr || attr->name() == heightAttr) && !attr->isEmpty()) {
+ ContainerNode* n = parentNode();
+ while (n && !n->hasTagName(objectTag))
+ n = n->parentNode();
+ if (n)
+ static_cast<HTMLObjectElement*>(n)->setAttribute(attr->name(), attr->value());
+ }
+}
+
+bool HTMLEmbedElement::isURLAttribute(Attribute* attr) const
+{
+ return attr->name() == srcAttr;
+}
+
+const QualifiedName& HTMLEmbedElement::imageSourceAttributeName() const
+{
+ return srcAttr;
+}
+
+void HTMLEmbedElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
+{
+ HTMLPlugInImageElement::addSubresourceAttributeURLs(urls);
+
+ addSubresourceURL(urls, document()->completeURL(getAttribute(srcAttr)));
+}
+
+}