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Diffstat (limited to 'Source/WebCore/html/HTMLEmbedElement.cpp')
-rw-r--r-- | Source/WebCore/html/HTMLEmbedElement.cpp | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/Source/WebCore/html/HTMLEmbedElement.cpp b/Source/WebCore/html/HTMLEmbedElement.cpp new file mode 100644 index 0000000..f419e2a --- /dev/null +++ b/Source/WebCore/html/HTMLEmbedElement.cpp @@ -0,0 +1,278 @@ +/* + * 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))); +} + +} |