blob: cef6d2ba73805e6a03c0f78b61a449c1e5ec3443 [file] [log] [blame]
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Stefan Schimanski (1Stein@gmx.de)
* Copyright (C) 2004-2020 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 "CSSPropertyNames.h"
#include "ElementAncestorIterator.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameView.h"
#include "HTMLImageLoader.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "HTMLParserIdioms.h"
#include "PluginDocument.h"
#include "RenderEmbeddedObject.h"
#include "RenderWidget.h"
#include "Settings.h"
#include "SubframeLoader.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/Ref.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLEmbedElement);
using namespace HTMLNames;
inline HTMLEmbedElement::HTMLEmbedElement(const QualifiedName& tagName, Document& document)
: HTMLPlugInImageElement(tagName, document)
{
ASSERT(hasTagName(embedTag));
}
Ref<HTMLEmbedElement> HTMLEmbedElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new HTMLEmbedElement(tagName, document));
}
Ref<HTMLEmbedElement> HTMLEmbedElement::create(Document& document)
{
return create(embedTag, document);
}
static inline RenderWidget* findWidgetRenderer(const Node* node)
{
if (!node->renderer())
node = ancestorsOfType<HTMLObjectElement>(*node).first();
if (node && is<RenderWidget>(node->renderer()))
return downcast<RenderWidget>(node->renderer());
return nullptr;
}
RenderWidget* HTMLEmbedElement::renderWidgetLoadingPlugin() const
{
RenderWidget* widget = HTMLPlugInImageElement::renderWidgetLoadingPlugin();
return widget ? widget : findWidgetRenderer(this);
}
void HTMLEmbedElement::collectPresentationalHintsForAttribute(const QualifiedName& name, const AtomString& value, MutableStyleProperties& style)
{
if (name == hiddenAttr) {
if (equalLettersIgnoringASCIICase(value, "yes") || equalLettersIgnoringASCIICase(value, "true")) {
addPropertyToPresentationalHintStyle(style, CSSPropertyWidth, 0, CSSUnitType::CSS_PX);
addPropertyToPresentationalHintStyle(style, CSSPropertyHeight, 0, CSSUnitType::CSS_PX);
}
} else
HTMLPlugInImageElement::collectPresentationalHintsForAttribute(name, value, style);
}
static bool hasTypeOrSrc(const HTMLEmbedElement& embed)
{
return embed.hasAttributeWithoutSynchronization(typeAttr) || embed.hasAttributeWithoutSynchronization(srcAttr);
}
void HTMLEmbedElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == typeAttr) {
m_serviceType = value.string().left(value.find(';')).convertToASCIILowercase();
// FIXME: The only difference between this and HTMLObjectElement's corresponding
// code is that HTMLObjectElement does setNeedsWidgetUpdate(true). Consider moving
// this up to the HTMLPlugInImageElement to be shared.
if (renderer() && !hasTypeOrSrc(*this))
invalidateStyle();
} else if (name == codeAttr) {
m_url = stripLeadingAndTrailingHTMLSpaces(value);
// FIXME: Why no call to updateImageLoaderWithNewURLSoon?
// FIXME: If both code and src attributes are specified, last one parsed/changed wins. That can't be right!
} else if (name == srcAttr) {
m_url = stripLeadingAndTrailingHTMLSpaces(value);
updateImageLoaderWithNewURLSoon();
if (renderer() && !hasTypeOrSrc(*this))
invalidateStyle();
// FIXME: If both code and src attributes are specified, last one parsed/changed wins. That can't be right!
} else
HTMLPlugInImageElement::parseAttribute(name, value);
}
void HTMLEmbedElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues)
{
if (!hasAttributes())
return;
for (const Attribute& attribute : attributesIterator()) {
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(CreatePlugins createPlugins)
{
ASSERT(!renderEmbeddedObject()->isPluginUnavailable());
ASSERT(needsWidgetUpdate());
if (m_url.isEmpty() && m_serviceType.isEmpty()) {
setNeedsWidgetUpdate(false);
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 (!canLoadURL(m_url)) {
setNeedsWidgetUpdate(false);
return;
}
// FIXME: It's unfortunate that we have this special case here.
// See http://trac.webkit.org/changeset/25128 and the plugins/netscape-plugin-setwindow-size.html test.
if (createPlugins == CreatePlugins::No && wouldLoadAsPlugIn(m_url, m_serviceType))
return;
setNeedsWidgetUpdate(false);
// FIXME: These should be joined into a PluginParameters class.
Vector<String> paramNames;
Vector<String> paramValues;
parametersForPlugin(paramNames, paramValues);
Ref<HTMLEmbedElement> protectedThis(*this); // Loading the plugin might remove us from the document.
bool beforeLoadAllowedLoad = guardedDispatchBeforeLoadEvent(m_url);
if (!beforeLoadAllowedLoad) {
if (is<PluginDocument>(document())) {
// 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.
downcast<PluginDocument>(document()).cancelManualPluginLoad();
}
return;
}
if (!renderer()) // Do not load the plugin if beforeload removed this element or its renderer.
return;
// Dispatching a beforeLoad event could have executed code that changed the document.
// Make sure the URL is still safe to load.
if (!canLoadURL(m_url))
return;
// FIXME: beforeLoad could have detached the renderer! Just like in the <object> case above.
requestObject(m_url, m_serviceType, paramNames, paramValues);
}
bool HTMLEmbedElement::rendererIsNeeded(const RenderStyle& style)
{
if (!hasTypeOrSrc(*this))
return false;
if (isImageType())
return HTMLPlugInImageElement::rendererIsNeeded(style);
// If my parent is an <object> and is not set to use fallback content, I
// should be ignored and not get a renderer.
RefPtr<ContainerNode> parent = parentNode();
if (is<HTMLObjectElement>(parent)) {
if (!parent->renderer())
return false;
if (!downcast<HTMLObjectElement>(*parent).useFallbackContent()) {
ASSERT(!parent->renderer()->isEmbeddedObject());
return false;
}
}
return HTMLPlugInImageElement::rendererIsNeeded(style);
}
bool HTMLEmbedElement::isURLAttribute(const Attribute& attribute) const
{
return attribute.name() == srcAttr || HTMLPlugInImageElement::isURLAttribute(attribute);
}
const AtomString& HTMLEmbedElement::imageSourceURL() const
{
return attributeWithoutSynchronization(srcAttr);
}
void HTMLEmbedElement::addSubresourceAttributeURLs(ListHashSet<URL>& urls) const
{
HTMLPlugInImageElement::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document().completeURL(attributeWithoutSynchronization(srcAttr)));
}
}