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/*
* Copyright (C) 2012 Company 100, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef HTMLStackItem_h
#define HTMLStackItem_h
#include "core/HTMLNames.h"
#include "core/MathMLNames.h"
#include "core/SVGNames.h"
#include "core/dom/Element.h"
#include "core/html/parser/AtomicHTMLToken.h"
#include "platform/RuntimeEnabledFeatures.h"
#include "wtf/text/AtomicString.h"
namespace blink {
class ContainerNode;
class HTMLStackItem : public GarbageCollectedFinalized<HTMLStackItem> {
public:
enum ItemType { ItemForContextElement, ItemForDocumentFragmentNode };
// Used by document fragment node and context element.
static HTMLStackItem* create(ContainerNode* node, ItemType type) {
return new HTMLStackItem(node, type);
}
// Used by HTMLElementStack and HTMLFormattingElementList.
static HTMLStackItem* create(
ContainerNode* node,
AtomicHTMLToken* token,
const AtomicString& namespaceURI = HTMLNames::xhtmlNamespaceURI) {
return new HTMLStackItem(node, token, namespaceURI);
}
Element* element() const { return toElement(m_node.get()); }
ContainerNode* node() const { return m_node.get(); }
bool isDocumentFragmentNode() const { return m_isDocumentFragmentNode; }
bool isElementNode() const { return !m_isDocumentFragmentNode; }
const AtomicString& namespaceURI() const { return m_namespaceURI; }
const AtomicString& localName() const { return m_tokenLocalName; }
const Vector<Attribute>& attributes() const {
ASSERT(m_tokenLocalName);
return m_tokenAttributes;
}
Attribute* getAttributeItem(const QualifiedName& attributeName) {
ASSERT(m_tokenLocalName);
return findAttributeInVector(m_tokenAttributes, attributeName);
}
bool hasLocalName(const AtomicString& name) const {
return m_tokenLocalName == name;
}
bool hasTagName(const QualifiedName& name) const {
return m_tokenLocalName == name.localName() &&
m_namespaceURI == name.namespaceURI();
}
bool matchesHTMLTag(const AtomicString& name) const {
return m_tokenLocalName == name &&
m_namespaceURI == HTMLNames::xhtmlNamespaceURI;
}
bool matchesHTMLTag(const QualifiedName& name) const {
return m_tokenLocalName == name &&
m_namespaceURI == HTMLNames::xhtmlNamespaceURI;
}
bool causesFosterParenting() {
return hasTagName(HTMLNames::tableTag) || hasTagName(HTMLNames::tbodyTag) ||
hasTagName(HTMLNames::tfootTag) || hasTagName(HTMLNames::theadTag) ||
hasTagName(HTMLNames::trTag);
}
bool isInHTMLNamespace() const {
// A DocumentFragment takes the place of the document element when parsing
// fragments and should be considered in the HTML namespace.
return namespaceURI() == HTMLNames::xhtmlNamespaceURI ||
isDocumentFragmentNode(); // FIXME: Does this also apply to
// ShadowRoot?
}
bool isNumberedHeaderElement() const {
return hasTagName(HTMLNames::h1Tag) || hasTagName(HTMLNames::h2Tag) ||
hasTagName(HTMLNames::h3Tag) || hasTagName(HTMLNames::h4Tag) ||
hasTagName(HTMLNames::h5Tag) || hasTagName(HTMLNames::h6Tag);
}
bool isTableBodyContextElement() const {
return hasTagName(HTMLNames::tbodyTag) || hasTagName(HTMLNames::tfootTag) ||
hasTagName(HTMLNames::theadTag);
}
// http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#special
bool isSpecialNode() const {
if (hasTagName(MathMLNames::miTag) || hasTagName(MathMLNames::moTag) ||
hasTagName(MathMLNames::mnTag) || hasTagName(MathMLNames::msTag) ||
hasTagName(MathMLNames::mtextTag) ||
hasTagName(MathMLNames::annotation_xmlTag) ||
hasTagName(SVGNames::foreignObjectTag) ||
hasTagName(SVGNames::descTag) || hasTagName(SVGNames::titleTag))
return true;
if (isDocumentFragmentNode())
return true;
if (!isInHTMLNamespace())
return false;
const AtomicString& tagName = localName();
return tagName == HTMLNames::addressTag || tagName == HTMLNames::areaTag ||
tagName == HTMLNames::appletTag ||
tagName == HTMLNames::articleTag || tagName == HTMLNames::asideTag ||
tagName == HTMLNames::baseTag || tagName == HTMLNames::basefontTag ||
tagName == HTMLNames::bgsoundTag ||
tagName == HTMLNames::blockquoteTag ||
tagName == HTMLNames::bodyTag || tagName == HTMLNames::brTag ||
tagName == HTMLNames::buttonTag ||
tagName == HTMLNames::captionTag ||
tagName == HTMLNames::centerTag || tagName == HTMLNames::colTag ||
tagName == HTMLNames::colgroupTag ||
tagName == HTMLNames::commandTag || tagName == HTMLNames::ddTag ||
tagName == HTMLNames::detailsTag || tagName == HTMLNames::dirTag ||
tagName == HTMLNames::divTag || tagName == HTMLNames::dlTag ||
tagName == HTMLNames::dtTag || tagName == HTMLNames::embedTag ||
tagName == HTMLNames::fieldsetTag ||
tagName == HTMLNames::figcaptionTag ||
tagName == HTMLNames::figureTag || tagName == HTMLNames::footerTag ||
tagName == HTMLNames::formTag || tagName == HTMLNames::frameTag ||
tagName == HTMLNames::framesetTag || isNumberedHeaderElement() ||
tagName == HTMLNames::headTag || tagName == HTMLNames::headerTag ||
tagName == HTMLNames::hgroupTag || tagName == HTMLNames::hrTag ||
tagName == HTMLNames::htmlTag || tagName == HTMLNames::iframeTag ||
tagName == HTMLNames::imgTag || tagName == HTMLNames::inputTag ||
tagName == HTMLNames::liTag || tagName == HTMLNames::linkTag ||
tagName == HTMLNames::listingTag || tagName == HTMLNames::mainTag ||
tagName == HTMLNames::marqueeTag || tagName == HTMLNames::menuTag ||
(RuntimeEnabledFeatures::contextMenuEnabled() &&
tagName == HTMLNames::menuitemTag) ||
tagName == HTMLNames::metaTag || tagName == HTMLNames::navTag ||
tagName == HTMLNames::noembedTag ||
tagName == HTMLNames::noframesTag ||
tagName == HTMLNames::noscriptTag ||
tagName == HTMLNames::objectTag || tagName == HTMLNames::olTag ||
tagName == HTMLNames::pTag || tagName == HTMLNames::paramTag ||
tagName == HTMLNames::plaintextTag || tagName == HTMLNames::preTag ||
tagName == HTMLNames::scriptTag ||
tagName == HTMLNames::sectionTag ||
tagName == HTMLNames::selectTag || tagName == HTMLNames::styleTag ||
tagName == HTMLNames::summaryTag || tagName == HTMLNames::tableTag ||
isTableBodyContextElement() || tagName == HTMLNames::tdTag ||
tagName == HTMLNames::templateTag ||
tagName == HTMLNames::textareaTag || tagName == HTMLNames::thTag ||
tagName == HTMLNames::titleTag || tagName == HTMLNames::trTag ||
tagName == HTMLNames::ulTag || tagName == HTMLNames::wbrTag ||
tagName == HTMLNames::xmpTag;
}
DEFINE_INLINE_TRACE() { visitor->trace(m_node); }
private:
HTMLStackItem(ContainerNode* node, ItemType type) : m_node(node) {
switch (type) {
case ItemForDocumentFragmentNode:
m_isDocumentFragmentNode = true;
break;
case ItemForContextElement:
m_tokenLocalName = element()->localName();
m_namespaceURI = element()->namespaceURI();
m_isDocumentFragmentNode = false;
break;
}
}
HTMLStackItem(ContainerNode* node,
AtomicHTMLToken* token,
const AtomicString& namespaceURI = HTMLNames::xhtmlNamespaceURI)
: m_node(node),
m_tokenLocalName(token->name()),
m_tokenAttributes(token->attributes()),
m_namespaceURI(namespaceURI),
m_isDocumentFragmentNode(false) {}
Member<ContainerNode> m_node;
AtomicString m_tokenLocalName;
Vector<Attribute> m_tokenAttributes;
AtomicString m_namespaceURI;
bool m_isDocumentFragmentNode;
};
} // namespace blink
#endif // HTMLStackItem_h
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