/*
* 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, 2011 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, ShouldPreferPlugInsForImages)
{
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()
{
HTMLPlugInImageElement::insertedIntoDocument();
if (!inDocument())
return;
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);
}
}
}
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)));
}
}