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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, 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 "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::isPresentationAttribute(const QualifiedName& name) const
{
if (name == hiddenAttr)
return true;
return HTMLPlugInImageElement::isPresentationAttribute(name);
}
void HTMLEmbedElement::collectStyleForAttribute(const Attribute& attribute, StylePropertySet* style)
{
if (attribute.name() == hiddenAttr) {
if (equalIgnoringCase(attribute.value(), "yes") || equalIgnoringCase(attribute.value(), "true")) {
addPropertyToAttributeStyle(style, CSSPropertyWidth, 0, CSSPrimitiveValue::CSS_PX);
addPropertyToAttributeStyle(style, CSSPropertyHeight, 0, CSSPrimitiveValue::CSS_PX);
}
} else
HTMLPlugInImageElement::collectStyleForAttribute(attribute, style);
}
void HTMLEmbedElement::parseAttribute(const Attribute& attribute)
{
if (attribute.name() == typeAttr) {
m_serviceType = attribute.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 (attribute.name() == codeAttr)
m_url = stripLeadingAndTrailingHTMLSpaces(attribute.value());
else if (attribute.name() == srcAttr) {
m_url = stripLeadingAndTrailingHTMLSpaces(attribute.value());
if (renderer() && isImageType()) {
if (!m_imageLoader)
m_imageLoader = adoptPtr(new HTMLImageLoader(this));
m_imageLoader->updateFromElementIgnoringPreviousError();
}
} else
HTMLPlugInImageElement::parseAttribute(attribute);
}
void HTMLEmbedElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues)
{
if (!hasAttributes())
return;
for (unsigned i = 0; i < attributeCount(); ++i) {
const Attribute* attribute = attributeItem(i);
paramNames.append(attribute->localName().string());
paramValues.append(attribute->value().string());
}
}
// FIXME: This should be unified with HTMLObjectElement::updateWidget and
// moved down into HTMLPluginImageElement.cpp
void HTMLEmbedElement::updateWidget(PluginCreationOption pluginCreationOption)
{
ASSERT(!renderEmbeddedObject()->showsUnavailablePluginIndicator());
ASSERT(needsWidgetUpdate());
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)) {
// Ensure updateWidget() is called again during layout to create the Netscape plug-in.
setNeedsWidgetUpdate(true);
return;
}
// FIXME: These should be joined into a PluginParameters class.
Vector<String> paramNames;
Vector<String> paramValues;
parametersForPlugin(paramNames, paramValues);
RefPtr<HTMLEmbedElement> protect(this); // Loading the plugin might remove us from the document.
bool beforeLoadAllowedLoad = guardedDispatchBeforeLoadEvent(m_url);
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;
}
if (!renderer()) // Do not load the plugin if beforeload removed this element or its renderer.
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, getNameAttribute(), m_serviceType, paramNames, paramValues);
}
bool HTMLEmbedElement::rendererIsNeeded(const NodeRenderingContext& context)
{
if (isImageType())
return HTMLPlugInImageElement::rendererIsNeeded(context);
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(context);
}
bool HTMLEmbedElement::isURLAttribute(const Attribute& attribute) const
{
return attribute.name() == srcAttr || HTMLPlugInImageElement::isURLAttribute(attribute);
}
const QualifiedName& HTMLEmbedElement::imageSourceAttributeName() const
{
return srcAttr;
}
void HTMLEmbedElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
{
HTMLPlugInImageElement::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document()->completeURL(getAttribute(srcAttr)));
}
#if ENABLE(MICRODATA)
String HTMLEmbedElement::itemValueText() const
{
return getURLAttribute(srcAttr);
}
void HTMLEmbedElement::setItemValueText(const String& value, ExceptionCode&)
{
setAttribute(srcAttr, value);
}
#endif
}
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