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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* 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.
*
* Portions are Copyright (C) 2002 Netscape Communications Corporation.
* Other contributors: David Baron <dbaron@fas.harvard.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Alternatively, the document type parsing portions of this file may be used
* under the terms of either the Mozilla Public License Version 1.1, found at
* http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
* License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
* (the "GPL"), in which case the provisions of the MPL or the GPL are
* applicable instead of those above. If you wish to allow use of your
* version of this file only under the terms of one of those two
* licenses (the MPL or the GPL) and not to allow others to use your
* version of this file under the LGPL, indicate your decision by
* deleting the provisions above and replace them with the notice and
* other provisions required by the MPL or the GPL, as the case may be.
* If you do not delete the provisions above, a recipient may use your
* version of this file under any of the LGPL, the MPL or the GPL.
*/
#include "config.h"
#include "HTMLDocument.h"
#include "CSSPropertyNames.h"
#include "CommonVM.h"
#include "CookieJar.h"
#include "DOMWindow.h"
#include "DocumentLoader.h"
#include "DocumentType.h"
#include "ElementChildIterator.h"
#include "FocusController.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "HTMLBodyElement.h"
#include "HTMLCollection.h"
#include "HTMLDocumentParser.h"
#include "HTMLElementFactory.h"
#include "HTMLFrameOwnerElement.h"
#include "HTMLFrameSetElement.h"
#include "HTMLHtmlElement.h"
#include "HTMLIFrameElement.h"
#include "HTMLNames.h"
#include "HashTools.h"
#include "ScriptController.h"
#include "StyleResolver.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/text/CString.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLDocument);
using namespace HTMLNames;
HTMLDocument::HTMLDocument(Frame* frame, const URL& url, DocumentClassFlags documentClasses, unsigned constructionFlags)
: Document(frame, url, documentClasses | HTMLDocumentClass, constructionFlags)
{
clearXMLVersion();
}
HTMLDocument::~HTMLDocument() = default;
int HTMLDocument::width()
{
updateLayoutIgnorePendingStylesheets();
RefPtr<FrameView> frameView = view();
return frameView ? frameView->contentsWidth() : 0;
}
int HTMLDocument::height()
{
updateLayoutIgnorePendingStylesheets();
RefPtr<FrameView> frameView = view();
return frameView ? frameView->contentsHeight() : 0;
}
Ref<DocumentParser> HTMLDocument::createParser()
{
return HTMLDocumentParser::create(*this);
}
// https://html.spec.whatwg.org/multipage/dom.html#dom-document-nameditem
std::optional<Variant<RefPtr<DOMWindow>, RefPtr<Element>, RefPtr<HTMLCollection>>> HTMLDocument::namedItem(const AtomicString& name)
{
if (name.isNull() || !hasDocumentNamedItem(*name.impl()))
return std::nullopt;
if (UNLIKELY(documentNamedItemContainsMultipleElements(*name.impl()))) {
auto collection = documentNamedItems(name);
ASSERT(collection->length() > 1);
return Variant<RefPtr<DOMWindow>, RefPtr<Element>, RefPtr<HTMLCollection>> { RefPtr<HTMLCollection> { WTFMove(collection) } };
}
auto& element = *documentNamedItem(*name.impl());
if (UNLIKELY(is<HTMLIFrameElement>(element))) {
if (auto domWindow = makeRefPtr(downcast<HTMLIFrameElement>(element).contentWindow()))
return Variant<RefPtr<DOMWindow>, RefPtr<Element>, RefPtr<HTMLCollection>> { WTFMove(domWindow) };
}
return Variant<RefPtr<DOMWindow>, RefPtr<Element>, RefPtr<HTMLCollection>> { RefPtr<Element> { &element } };
}
Vector<AtomicString> HTMLDocument::supportedPropertyNames() const
{
// https://html.spec.whatwg.org/multipage/dom.html#dom-document-namedItem-which
//
// ... The supported property names of a Document object document at any moment consist of the following, in
// tree order according to the element that contributed them, ignoring later duplicates, and with values from
// id attributes coming before values from name attributes when the same element contributes both:
//
// - the value of the name content attribute for all applet, exposed embed, form, iframe, img, and exposed
// object elements that have a non-empty name content attribute and are in a document tree with document
// as their root;
// - the value of the id content attribute for all applet and exposed object elements that have a non-empty
// id content attribute and are in a document tree with document as their root; and
// - the value of the id content attribute for all img elements that have both a non-empty id content attribute
// and a non-empty name content attribute, and are in a document tree with document as their root.
// FIXME: Implement.
return { };
}
void HTMLDocument::addDocumentNamedItem(const AtomicStringImpl& name, Element& item)
{
m_documentNamedItem.add(name, item, *this);
addImpureProperty(AtomicString(const_cast<AtomicStringImpl*>(&name)));
}
void HTMLDocument::removeDocumentNamedItem(const AtomicStringImpl& name, Element& item)
{
m_documentNamedItem.remove(name, item);
}
void HTMLDocument::addWindowNamedItem(const AtomicStringImpl& name, Element& item)
{
m_windowNamedItem.add(name, item, *this);
}
void HTMLDocument::removeWindowNamedItem(const AtomicStringImpl& name, Element& item)
{
m_windowNamedItem.remove(name, item);
}
bool HTMLDocument::isCaseSensitiveAttribute(const QualifiedName& attributeName)
{
static const auto caseInsensitiveAttributeSet = makeNeverDestroyed([] {
// This is the list of attributes in HTML 4.01 with values marked as "[CI]" or case-insensitive
// Mozilla treats all other values as case-sensitive, thus so do we.
static const QualifiedName* const names[] = {
&accept_charsetAttr.get(),
&acceptAttr.get(),
&alignAttr.get(),
&alinkAttr.get(),
&axisAttr.get(),
&bgcolorAttr.get(),
&charsetAttr.get(),
&checkedAttr.get(),
&clearAttr.get(),
&codetypeAttr.get(),
&colorAttr.get(),
&compactAttr.get(),
&declareAttr.get(),
&deferAttr.get(),
&dirAttr.get(),
&disabledAttr.get(),
&enctypeAttr.get(),
&faceAttr.get(),
&frameAttr.get(),
&hreflangAttr.get(),
&http_equivAttr.get(),
&langAttr.get(),
&languageAttr.get(),
&linkAttr.get(),
&mediaAttr.get(),
&methodAttr.get(),
&multipleAttr.get(),
&nohrefAttr.get(),
&noresizeAttr.get(),
&noshadeAttr.get(),
&nowrapAttr.get(),
&readonlyAttr.get(),
&relAttr.get(),
&revAttr.get(),
&rulesAttr.get(),
&scopeAttr.get(),
&scrollingAttr.get(),
&selectedAttr.get(),
&shapeAttr.get(),
&targetAttr.get(),
&textAttr.get(),
&typeAttr.get(),
&valignAttr.get(),
&valuetypeAttr.get(),
&vlinkAttr.get(),
};
HashSet<AtomicString> set;
for (auto* name : names)
set.add(name->localName());
return set;
}());
bool isPossibleHTMLAttr = !attributeName.hasPrefix() && attributeName.namespaceURI().isNull();
return !isPossibleHTMLAttr || !caseInsensitiveAttributeSet.get().contains(attributeName.localName());
}
bool HTMLDocument::isFrameSet() const
{
if (!documentElement())
return false;
return !!childrenOfType<HTMLFrameSetElement>(*documentElement()).first();
}
Ref<Document> HTMLDocument::cloneDocumentWithoutChildren() const
{
return create(nullptr, url());
}
}