WebCore/html/HTMLObjectElement.cpp - WebKit - Git at Google

 /*
  * 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, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Trolltech ASA
  *
  * 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 "HTMLObjectElement.h"

 #include "CSSHelper.h"
 #include "EventNames.h"
 #include "ExceptionCode.h"
 #include "Frame.h"
 #include "FrameLoader.h"
 #include "FrameLoaderClient.h"
 #include "FrameView.h"
 #include "HTMLDocument.h"
 #include "HTMLFormElement.h"
 #include "HTMLImageLoader.h"
 #include "HTMLNames.h"
 #include "Image.h"
 #include "MIMETypeRegistry.h"
 #include "RenderImage.h"
 #include "RenderPartObject.h"
 #include "RenderWidget.h"
 #include "Text.h"

 #if ENABLE(SVG)
 #include "SVGDocument.h"
 #endif

 namespace WebCore {

 using namespace EventNames;
 using namespace HTMLNames;

 HTMLObjectElement::HTMLObjectElement(Document* doc)
     : HTMLPlugInElement(objectTag, doc)
     , m_needWidgetUpdate(false)
     , m_useFallbackContent(false)
     , m_imageLoader(0)
     , m_complete(false)
     , m_docNamedItem(true)
 {
 }

 HTMLObjectElement::~HTMLObjectElement()
 {
 #if USE(JAVASCRIPTCORE_BINDINGS)
     // m_instance should have been cleaned up in detach().
     ASSERT(!m_instance);
 #endif

     delete m_imageLoader;
 }

 #if USE(JAVASCRIPTCORE_BINDINGS)
 KJS::Bindings::Instance *HTMLObjectElement::getInstance() const
 {
     Frame* frame = document()->frame();
     if (!frame)
         return 0;

     if (m_instance)
         return m_instance.get();

     RenderWidget* renderWidget = (renderer() && renderer()->isWidget()) ? static_cast<RenderWidget*>(renderer()) : 0;
     if (renderWidget && !renderWidget->widget()) {
         document()->updateLayoutIgnorePendingStylesheets();
         renderWidget = (renderer() && renderer()->isWidget()) ? static_cast<RenderWidget*>(renderer()) : 0;
     }
     if (renderWidget && renderWidget->widget())
         m_instance = frame->createScriptInstanceForWidget(renderWidget->widget());

     return m_instance.get();
 }
 #endif

 void HTMLObjectElement::parseMappedAttribute(MappedAttribute *attr)
 {
     String val = attr->value();
     int pos;
     if (attr->name() == typeAttr) {
         m_serviceType = val.lower();
         pos = m_serviceType.find(";");
         if (pos != -1)
           m_serviceType = m_serviceType.left(pos);
         if (renderer())
           m_needWidgetUpdate = true;
         if (!isImageType() && m_imageLoader) {
           delete m_imageLoader;
           m_imageLoader = 0;
         }
     } else if (attr->name() == dataAttr) {
         m_url = parseURL(val);
         if (renderer())
           m_needWidgetUpdate = true;
         if (renderer() && isImageType()) {
           if (!m_imageLoader)
               m_imageLoader = new HTMLImageLoader(this);
           m_imageLoader->updateFromElement();
         }
     } else if (attr->name() == classidAttr) {
         m_classId = val;
         if (renderer())
           m_needWidgetUpdate = true;
     } else if (attr->name() == onloadAttr) {
         setHTMLEventListener(loadEvent, attr);
     } else if (attr->name() == onunloadAttr) {
         setHTMLEventListener(unloadEvent, attr);
     } else if (attr->name() == nameAttr) {
             String newNameAttr = attr->value();
             if (isDocNamedItem() && inDocument() && document()->isHTMLDocument()) {
                 HTMLDocument *doc = static_cast<HTMLDocument *>(document());
                 doc->removeNamedItem(oldNameAttr);
                 doc->addNamedItem(newNameAttr);
             }
             oldNameAttr = newNameAttr;
     } else if (attr->name() == idAttr) {
         String newIdAttr = attr->value();
         if (isDocNamedItem() && inDocument() && document()->isHTMLDocument()) {
             HTMLDocument* doc = static_cast<HTMLDocument*>(document());
             doc->removeDocExtraNamedItem(oldIdAttr);
             doc->addDocExtraNamedItem(newIdAttr);
         }
         oldIdAttr = newIdAttr;
         // also call superclass
         HTMLPlugInElement::parseMappedAttribute(attr);
     } else
         HTMLPlugInElement::parseMappedAttribute(attr);
 }

 bool HTMLObjectElement::rendererIsNeeded(RenderStyle* style)
 {
     if (m_useFallbackContent || isImageType())
         return HTMLPlugInElement::rendererIsNeeded(style);

     Frame* frame = document()->frame();
     if (!frame)
         return false;

     return true;
 }

 RenderObject *HTMLObjectElement::createRenderer(RenderArena* arena, RenderStyle* style)
 {
     if (m_useFallbackContent)
         return RenderObject::createObject(this, style);
     if (isImageType())
         return new (arena) RenderImage(this);
     return new (arena) RenderPartObject(this);
 }

 void HTMLObjectElement::attach()
 {
     HTMLPlugInElement::attach();

     if (renderer() && !m_useFallbackContent) {
         if (isImageType()) {
             if (!m_imageLoader)
                 m_imageLoader = new HTMLImageLoader(this);
             m_imageLoader->updateFromElement();
             if (renderer()) {
                 RenderImage* imageObj = static_cast<RenderImage*>(renderer());
                 imageObj->setCachedImage(m_imageLoader->image());
             }
         } else {
             if (m_needWidgetUpdate) {
                 // Set m_needWidgetUpdate to false before calling updateWidget because updateWidget may cause
                 // this method or recalcStyle (which also calls updateWidget) to be called.
                 m_needWidgetUpdate = false;
                 static_cast<RenderPartObject*>(renderer())->updateWidget(true);
             } else {
                 m_needWidgetUpdate = true;
                 setChanged();
             }
         }
     }
 }

 void HTMLObjectElement::finishedParsing()
 {
     // The parser just reached </object>.
     setComplete(true);

     HTMLPlugInElement::finishedParsing();
 }

 void HTMLObjectElement::setComplete(bool complete)
 {
     if (complete != m_complete) {
         m_complete = complete;
         if (complete && !m_useFallbackContent) {
             m_needWidgetUpdate = true;
             if (inDocument())
                 setChanged();
         }
     }
 }

 void HTMLObjectElement::detach()
 {
     if (attached() && renderer() && !m_useFallbackContent) {
         // Update the widget the next time we attach (detaching destroys the plugin).
         m_needWidgetUpdate = true;
     }

 #if USE(JAVASCRIPTCORE_BINDINGS)
     m_instance = 0;
 #endif
     HTMLPlugInElement::detach();
 }

 void HTMLObjectElement::insertedIntoDocument()
 {
     if (isDocNamedItem() && document()->isHTMLDocument()) {
         HTMLDocument *doc = static_cast<HTMLDocument *>(document());
         doc->addNamedItem(oldNameAttr);
         doc->addDocExtraNamedItem(oldIdAttr);
     }

     HTMLPlugInElement::insertedIntoDocument();
 }

 void HTMLObjectElement::removedFromDocument()
 {
     if (isDocNamedItem() && document()->isHTMLDocument()) {
         HTMLDocument *doc = static_cast<HTMLDocument *>(document());
         doc->removeNamedItem(oldNameAttr);
         doc->removeDocExtraNamedItem(oldIdAttr);
     }

     HTMLPlugInElement::removedFromDocument();
 }

 void HTMLObjectElement::recalcStyle(StyleChange ch)
 {
     if (!m_useFallbackContent && m_needWidgetUpdate && renderer() && !isImageType()) {
         detach();
         attach();
     }
     HTMLPlugInElement::recalcStyle(ch);
 }

 void HTMLObjectElement::childrenChanged()
 {
     updateDocNamedItem();
     if (inDocument() && !m_useFallbackContent) {
         m_needWidgetUpdate = true;
         setChanged();
     }
 }

 bool HTMLObjectElement::isURLAttribute(Attribute *attr) const
 {
     return (attr->name() == dataAttr || (attr->name() == usemapAttr && attr->value().domString()[0] != '#'));
 }

 bool HTMLObjectElement::isImageType()
 {
     if (m_serviceType.isEmpty() && m_url.startsWith("data:")) {
         // Extract the MIME type from the data URL.
         int index = m_url.find(';');
         if (index == -1)
             index = m_url.find(',');
         if (index != -1) {
             int len = index - 5;
             if (len > 0)
                 m_serviceType = m_url.substring(5, len);
             else
                 m_serviceType = "text/plain"; // Data URLs with no MIME type are considered text/plain.
         }
     }
     if (Frame* frame = document()->frame()) {
         KURL completedURL(frame->loader()->completeURL(m_url));
         return frame->loader()->client()->objectContentType(completedURL, m_serviceType) == ObjectContentImage;
     }

     return Image::supportsType(m_serviceType);
 }

 void HTMLObjectElement::renderFallbackContent()
 {
     if (m_useFallbackContent)
         return;

     // Mark ourselves as using the fallback content.
     m_useFallbackContent = true;

     // Now do a detach and reattach.
     // FIXME: Style gets recalculated which is suboptimal.
     detach();
     attach();
 }

 void HTMLObjectElement::updateDocNamedItem()
 {
     // The rule is "<object> elements with no children other than
     // <param> elements, unknown elements and whitespace can be
     // found by name in a document, and other <object> elements cannot."
     bool wasNamedItem = m_docNamedItem;
     bool isNamedItem = true;
     Node* child = firstChild();
     while (child && isNamedItem) {
         if (child->isElementNode()) {
             Element* element = static_cast<Element*>(child);
             if (HTMLElement::isRecognizedTagName(element->tagQName()) && !element->hasTagName(paramTag))
                 isNamedItem = false;
         } else if (child->isTextNode()) {
             if (!static_cast<Text*>(child)->containsOnlyWhitespace())
                 isNamedItem = false;
         } else
             isNamedItem = false;
         child = child->nextSibling();
     }
     if (isNamedItem != wasNamedItem && document()->isHTMLDocument()) {
         HTMLDocument* doc = static_cast<HTMLDocument*>(document());
         if (isNamedItem) {
             doc->addNamedItem(oldNameAttr);
             doc->addDocExtraNamedItem(oldIdAttr);
         } else {
             doc->removeNamedItem(oldNameAttr);
             doc->removeDocExtraNamedItem(oldIdAttr);
         }
     }
     m_docNamedItem = isNamedItem;
 }

 String HTMLObjectElement::code() const
 {
     return getAttribute(codeAttr);
 }

 void HTMLObjectElement::setCode(const String& value)
 {
     setAttribute(codeAttr, value);
 }

 String HTMLObjectElement::archive() const
 {
     return getAttribute(archiveAttr);
 }

 void HTMLObjectElement::setArchive(const String& value)
 {
     setAttribute(archiveAttr, value);
 }

 String HTMLObjectElement::border() const
 {
     return getAttribute(borderAttr);
 }

 void HTMLObjectElement::setBorder(const String& value)
 {
     setAttribute(borderAttr, value);
 }

 String HTMLObjectElement::codeBase() const
 {
     return getAttribute(codebaseAttr);
 }

 void HTMLObjectElement::setCodeBase(const String& value)
 {
     setAttribute(codebaseAttr, value);
 }

 String HTMLObjectElement::codeType() const
 {
     return getAttribute(codetypeAttr);
 }

 void HTMLObjectElement::setCodeType(const String& value)
 {
     setAttribute(codetypeAttr, value);
 }

 String HTMLObjectElement::data() const
 {
     return getAttribute(dataAttr);
 }

 void HTMLObjectElement::setData(const String& value)
 {
     setAttribute(dataAttr, value);
 }

 bool HTMLObjectElement::declare() const
 {
     return !getAttribute(declareAttr).isNull();
 }

 void HTMLObjectElement::setDeclare(bool declare)
 {
     setAttribute(declareAttr, declare ? "" : 0);
 }

 int HTMLObjectElement::hspace() const
 {
     return getAttribute(hspaceAttr).toInt();
 }

 void HTMLObjectElement::setHspace(int value)
 {
     setAttribute(hspaceAttr, String::number(value));
 }

 String HTMLObjectElement::standby() const
 {
     return getAttribute(standbyAttr);
 }

 void HTMLObjectElement::setStandby(const String& value)
 {
     setAttribute(standbyAttr, value);
 }

 void HTMLObjectElement::setTabIndex(int tabIndex)
 {
     setAttribute(tabindexAttr, String::number(tabIndex));
 }

 String HTMLObjectElement::type() const
 {
     return getAttribute(typeAttr);
 }

 void HTMLObjectElement::setType(const String& value)
 {
     setAttribute(typeAttr, value);
 }

 String HTMLObjectElement::useMap() const
 {
     return getAttribute(usemapAttr);
 }

 void HTMLObjectElement::setUseMap(const String& value)
 {
     setAttribute(usemapAttr, value);
 }

 int HTMLObjectElement::vspace() const
 {
     return getAttribute(vspaceAttr).toInt();
 }

 void HTMLObjectElement::setVspace(int value)
 {
     setAttribute(vspaceAttr, String::number(value));
 }

 bool HTMLObjectElement::containsJavaApplet() const
 {
     if (MIMETypeRegistry::isJavaAppletMIMEType(type()))
         return true;

     Node* child = firstChild();
     while (child) {
         if (child->isElementNode()) {
             Element* e = static_cast<Element*>(child);
             if (e->hasTagName(paramTag) &&
                 e->getAttribute(nameAttr).domString().lower() == "type" &&
                 MIMETypeRegistry::isJavaAppletMIMEType(e->getAttribute(valueAttr).domString()))
                 return true;
             else if (e->hasTagName(objectTag) && static_cast<HTMLObjectElement*>(e)->containsJavaApplet())
                 return true;
             else if (e->hasTagName(appletTag))
                 return true;
         }
         child = child->nextSibling();
     }

     return false;
 }

 #if ENABLE(SVG)
 SVGDocument* HTMLObjectElement::getSVGDocument(ExceptionCode& ec) const
 {
     Document* doc = contentDocument();
     if (doc && doc->isSVGDocument())
         return static_cast<SVGDocument*>(doc);
     // Spec: http://www.w3.org/TR/SVG/struct.html#InterfaceGetSVGDocument
     ec = NOT_SUPPORTED_ERR;
     return 0;
 }
 #endif

 }
	/*
	* 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, 2007 Apple Inc. All rights reserved.
	* Copyright (C) 2007 Trolltech ASA
	*
	* 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 "HTMLObjectElement.h"

	#include "CSSHelper.h"
	#include "EventNames.h"
	#include "ExceptionCode.h"
	#include "Frame.h"
	#include "FrameLoader.h"
	#include "FrameLoaderClient.h"
	#include "FrameView.h"
	#include "HTMLDocument.h"
	#include "HTMLFormElement.h"
	#include "HTMLImageLoader.h"
	#include "HTMLNames.h"
	#include "Image.h"
	#include "MIMETypeRegistry.h"
	#include "RenderImage.h"
	#include "RenderPartObject.h"
	#include "RenderWidget.h"
	#include "Text.h"

	#if ENABLE(SVG)
	#include "SVGDocument.h"
	#endif

	namespace WebCore {

	using namespace EventNames;
	using namespace HTMLNames;

	HTMLObjectElement::HTMLObjectElement(Document* doc)
	: HTMLPlugInElement(objectTag, doc)
	, m_needWidgetUpdate(false)
	, m_useFallbackContent(false)
	, m_imageLoader(0)
	, m_complete(false)
	, m_docNamedItem(true)
	{
	}

	HTMLObjectElement::~HTMLObjectElement()
	{
	#if USE(JAVASCRIPTCORE_BINDINGS)
	// m_instance should have been cleaned up in detach().
	ASSERT(!m_instance);
	#endif

	delete m_imageLoader;
	}

	#if USE(JAVASCRIPTCORE_BINDINGS)
	KJS::Bindings::Instance *HTMLObjectElement::getInstance() const
	{
	Frame* frame = document()->frame();
	if (!frame)
	return 0;

	if (m_instance)
	return m_instance.get();

	RenderWidget* renderWidget = (renderer() && renderer()->isWidget()) ? static_cast<RenderWidget*>(renderer()) : 0;
	if (renderWidget && !renderWidget->widget()) {
	document()->updateLayoutIgnorePendingStylesheets();
	renderWidget = (renderer() && renderer()->isWidget()) ? static_cast<RenderWidget*>(renderer()) : 0;
	}
	if (renderWidget && renderWidget->widget())
	m_instance = frame->createScriptInstanceForWidget(renderWidget->widget());

	return m_instance.get();
	}
	#endif

	void HTMLObjectElement::parseMappedAttribute(MappedAttribute *attr)
	{
	String val = attr->value();
	int pos;
	if (attr->name() == typeAttr) {
	m_serviceType = val.lower();
	pos = m_serviceType.find(";");
	if (pos != -1)
	m_serviceType = m_serviceType.left(pos);
	if (renderer())
	m_needWidgetUpdate = true;
	if (!isImageType() && m_imageLoader) {
	delete m_imageLoader;
	m_imageLoader = 0;
	}
	} else if (attr->name() == dataAttr) {
	m_url = parseURL(val);
	if (renderer())
	m_needWidgetUpdate = true;
	if (renderer() && isImageType()) {
	if (!m_imageLoader)
	m_imageLoader = new HTMLImageLoader(this);
	m_imageLoader->updateFromElement();
	}
	} else if (attr->name() == classidAttr) {
	m_classId = val;
	if (renderer())
	m_needWidgetUpdate = true;
	} else if (attr->name() == onloadAttr) {
	setHTMLEventListener(loadEvent, attr);
	} else if (attr->name() == onunloadAttr) {
	setHTMLEventListener(unloadEvent, attr);
	} else if (attr->name() == nameAttr) {
	String newNameAttr = attr->value();
	if (isDocNamedItem() && inDocument() && document()->isHTMLDocument()) {
	HTMLDocument doc = static_cast<HTMLDocument >(document());
	doc->removeNamedItem(oldNameAttr);
	doc->addNamedItem(newNameAttr);
	}
	oldNameAttr = newNameAttr;
	} else if (attr->name() == idAttr) {
	String newIdAttr = attr->value();
	if (isDocNamedItem() && inDocument() && document()->isHTMLDocument()) {
	HTMLDocument* doc = static_cast<HTMLDocument*>(document());
	doc->removeDocExtraNamedItem(oldIdAttr);
	doc->addDocExtraNamedItem(newIdAttr);
	}
	oldIdAttr = newIdAttr;
	// also call superclass
	HTMLPlugInElement::parseMappedAttribute(attr);
	} else
	HTMLPlugInElement::parseMappedAttribute(attr);
	}

	bool HTMLObjectElement::rendererIsNeeded(RenderStyle* style)
	{
	if (m_useFallbackContent \|\| isImageType())
	return HTMLPlugInElement::rendererIsNeeded(style);

	Frame* frame = document()->frame();
	if (!frame)
	return false;

	return true;
	}

	RenderObject HTMLObjectElement::createRenderer(RenderArena arena, RenderStyle* style)
	{
	if (m_useFallbackContent)
	return RenderObject::createObject(this, style);
	if (isImageType())
	return new (arena) RenderImage(this);
	return new (arena) RenderPartObject(this);
	}

	void HTMLObjectElement::attach()
	{
	HTMLPlugInElement::attach();

	if (renderer() && !m_useFallbackContent) {
	if (isImageType()) {
	if (!m_imageLoader)
	m_imageLoader = new HTMLImageLoader(this);
	m_imageLoader->updateFromElement();
	if (renderer()) {
	RenderImage* imageObj = static_cast<RenderImage*>(renderer());
	imageObj->setCachedImage(m_imageLoader->image());
	}
	} else {
	if (m_needWidgetUpdate) {
	// Set m_needWidgetUpdate to false before calling updateWidget because updateWidget may cause
	// this method or recalcStyle (which also calls updateWidget) to be called.
	m_needWidgetUpdate = false;
	static_cast<RenderPartObject*>(renderer())->updateWidget(true);
	} else {
	m_needWidgetUpdate = true;
	setChanged();
	}
	}
	}
	}

	void HTMLObjectElement::finishedParsing()
	{
	// The parser just reached </object>.
	setComplete(true);

	HTMLPlugInElement::finishedParsing();
	}

	void HTMLObjectElement::setComplete(bool complete)
	{
	if (complete != m_complete) {
	m_complete = complete;
	if (complete && !m_useFallbackContent) {
	m_needWidgetUpdate = true;
	if (inDocument())
	setChanged();
	}
	}
	}

	void HTMLObjectElement::detach()
	{
	if (attached() && renderer() && !m_useFallbackContent) {
	// Update the widget the next time we attach (detaching destroys the plugin).
	m_needWidgetUpdate = true;
	}

	#if USE(JAVASCRIPTCORE_BINDINGS)
	m_instance = 0;
	#endif
	HTMLPlugInElement::detach();
	}

	void HTMLObjectElement::insertedIntoDocument()
	{
	if (isDocNamedItem() && document()->isHTMLDocument()) {
	HTMLDocument doc = static_cast<HTMLDocument >(document());
	doc->addNamedItem(oldNameAttr);
	doc->addDocExtraNamedItem(oldIdAttr);
	}

	HTMLPlugInElement::insertedIntoDocument();
	}

	void HTMLObjectElement::removedFromDocument()
	{
	if (isDocNamedItem() && document()->isHTMLDocument()) {
	HTMLDocument doc = static_cast<HTMLDocument >(document());
	doc->removeNamedItem(oldNameAttr);
	doc->removeDocExtraNamedItem(oldIdAttr);
	}

	HTMLPlugInElement::removedFromDocument();
	}

	void HTMLObjectElement::recalcStyle(StyleChange ch)
	{
	if (!m_useFallbackContent && m_needWidgetUpdate && renderer() && !isImageType()) {
	detach();
	attach();
	}
	HTMLPlugInElement::recalcStyle(ch);
	}

	void HTMLObjectElement::childrenChanged()
	{
	updateDocNamedItem();
	if (inDocument() && !m_useFallbackContent) {
	m_needWidgetUpdate = true;
	setChanged();
	}
	}

	bool HTMLObjectElement::isURLAttribute(Attribute *attr) const
	{
	return (attr->name() == dataAttr \|\| (attr->name() == usemapAttr && attr->value().domString()[0] != '#'));
	}

	bool HTMLObjectElement::isImageType()
	{
	if (m_serviceType.isEmpty() && m_url.startsWith("data:")) {
	// Extract the MIME type from the data URL.
	int index = m_url.find(';');
	if (index == -1)
	index = m_url.find(',');
	if (index != -1) {
	int len = index - 5;
	if (len > 0)
	m_serviceType = m_url.substring(5, len);
	else
	m_serviceType = "text/plain"; // Data URLs with no MIME type are considered text/plain.
	}
	}
	if (Frame* frame = document()->frame()) {
	KURL completedURL(frame->loader()->completeURL(m_url));
	return frame->loader()->client()->objectContentType(completedURL, m_serviceType) == ObjectContentImage;
	}

	return Image::supportsType(m_serviceType);
	}

	void HTMLObjectElement::renderFallbackContent()
	{
	if (m_useFallbackContent)
	return;

	// Mark ourselves as using the fallback content.
	m_useFallbackContent = true;

	// Now do a detach and reattach.
	// FIXME: Style gets recalculated which is suboptimal.
	detach();
	attach();
	}

	void HTMLObjectElement::updateDocNamedItem()
	{
	// The rule is "<object> elements with no children other than
	// <param> elements, unknown elements and whitespace can be
	// found by name in a document, and other <object> elements cannot."
	bool wasNamedItem = m_docNamedItem;
	bool isNamedItem = true;
	Node* child = firstChild();
	while (child && isNamedItem) {
	if (child->isElementNode()) {
	Element* element = static_cast<Element*>(child);
	if (HTMLElement::isRecognizedTagName(element->tagQName()) && !element->hasTagName(paramTag))
	isNamedItem = false;
	} else if (child->isTextNode()) {
	if (!static_cast<Text*>(child)->containsOnlyWhitespace())
	isNamedItem = false;
	} else
	isNamedItem = false;
	child = child->nextSibling();
	}
	if (isNamedItem != wasNamedItem && document()->isHTMLDocument()) {
	HTMLDocument* doc = static_cast<HTMLDocument*>(document());
	if (isNamedItem) {
	doc->addNamedItem(oldNameAttr);
	doc->addDocExtraNamedItem(oldIdAttr);
	} else {
	doc->removeNamedItem(oldNameAttr);
	doc->removeDocExtraNamedItem(oldIdAttr);
	}
	}
	m_docNamedItem = isNamedItem;
	}

	String HTMLObjectElement::code() const
	{
	return getAttribute(codeAttr);
	}

	void HTMLObjectElement::setCode(const String& value)
	{
	setAttribute(codeAttr, value);
	}

	String HTMLObjectElement::archive() const
	{
	return getAttribute(archiveAttr);
	}

	void HTMLObjectElement::setArchive(const String& value)
	{
	setAttribute(archiveAttr, value);
	}

	String HTMLObjectElement::border() const
	{
	return getAttribute(borderAttr);
	}

	void HTMLObjectElement::setBorder(const String& value)
	{
	setAttribute(borderAttr, value);
	}

	String HTMLObjectElement::codeBase() const
	{
	return getAttribute(codebaseAttr);
	}

	void HTMLObjectElement::setCodeBase(const String& value)
	{
	setAttribute(codebaseAttr, value);
	}

	String HTMLObjectElement::codeType() const
	{
	return getAttribute(codetypeAttr);
	}

	void HTMLObjectElement::setCodeType(const String& value)
	{
	setAttribute(codetypeAttr, value);
	}

	String HTMLObjectElement::data() const
	{
	return getAttribute(dataAttr);
	}

	void HTMLObjectElement::setData(const String& value)
	{
	setAttribute(dataAttr, value);
	}

	bool HTMLObjectElement::declare() const
	{
	return !getAttribute(declareAttr).isNull();
	}

	void HTMLObjectElement::setDeclare(bool declare)
	{
	setAttribute(declareAttr, declare ? "" : 0);
	}

	int HTMLObjectElement::hspace() const
	{
	return getAttribute(hspaceAttr).toInt();
	}

	void HTMLObjectElement::setHspace(int value)
	{
	setAttribute(hspaceAttr, String::number(value));
	}

	String HTMLObjectElement::standby() const
	{
	return getAttribute(standbyAttr);
	}

	void HTMLObjectElement::setStandby(const String& value)
	{
	setAttribute(standbyAttr, value);
	}

	void HTMLObjectElement::setTabIndex(int tabIndex)
	{
	setAttribute(tabindexAttr, String::number(tabIndex));
	}

	String HTMLObjectElement::type() const
	{
	return getAttribute(typeAttr);
	}

	void HTMLObjectElement::setType(const String& value)
	{
	setAttribute(typeAttr, value);
	}

	String HTMLObjectElement::useMap() const
	{
	return getAttribute(usemapAttr);
	}

	void HTMLObjectElement::setUseMap(const String& value)
	{
	setAttribute(usemapAttr, value);
	}

	int HTMLObjectElement::vspace() const
	{
	return getAttribute(vspaceAttr).toInt();
	}

	void HTMLObjectElement::setVspace(int value)
	{
	setAttribute(vspaceAttr, String::number(value));
	}

	bool HTMLObjectElement::containsJavaApplet() const
	{
	if (MIMETypeRegistry::isJavaAppletMIMEType(type()))
	return true;

	Node* child = firstChild();
	while (child) {
	if (child->isElementNode()) {
	Element* e = static_cast<Element*>(child);
	if (e->hasTagName(paramTag) &&
	e->getAttribute(nameAttr).domString().lower() == "type" &&
	MIMETypeRegistry::isJavaAppletMIMEType(e->getAttribute(valueAttr).domString()))
	return true;
	else if (e->hasTagName(objectTag) && static_cast<HTMLObjectElement*>(e)->containsJavaApplet())
	return true;
	else if (e->hasTagName(appletTag))
	return true;
	}
	child = child->nextSibling();
	}

	return false;
	}

	#if ENABLE(SVG)
	SVGDocument* HTMLObjectElement::getSVGDocument(ExceptionCode& ec) const
	{
	Document* doc = contentDocument();
	if (doc && doc->isSVGDocument())
	return static_cast<SVGDocument*>(doc);
	// Spec: http://www.w3.org/TR/SVG/struct.html#InterfaceGetSVGDocument
	ec = NOT_SUPPORTED_ERR;
	return 0;
	}
	#endif

	}