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/*
* Copyright (C) 2010 Google, 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 HTMLConstructionSite_h
#define HTMLConstructionSite_h
#include "FragmentScriptingPermission.h"
#include "HTMLElementStack.h"
#include "HTMLFormattingElementList.h"
#include "NotImplemented.h"
#include <wtf/Noncopyable.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class AtomicHTMLToken;
class Document;
class Element;
class HTMLConstructionSite : public Noncopyable {
public:
HTMLConstructionSite(Document*, FragmentScriptingPermission, bool isParsingFragment);
~HTMLConstructionSite();
void insertDoctype(AtomicHTMLToken&);
void insertComment(AtomicHTMLToken&);
void insertCommentOnDocument(AtomicHTMLToken&);
void insertCommentOnHTMLHtmlElement(AtomicHTMLToken&);
void insertHTMLElement(AtomicHTMLToken&);
void insertSelfClosingHTMLElement(AtomicHTMLToken&);
void insertFormattingElement(AtomicHTMLToken&);
void insertHTMLHtmlElement(AtomicHTMLToken&);
void insertHTMLHeadElement(AtomicHTMLToken&);
void insertHTMLBodyElement(AtomicHTMLToken&);
void insertHTMLFormElement(AtomicHTMLToken&);
void insertScriptElement(AtomicHTMLToken&);
void insertTextNode(const String&);
void insertForeignElement(AtomicHTMLToken&, const AtomicString& namespaceURI);
void insertHTMLHtmlStartTagBeforeHTML(AtomicHTMLToken&);
void insertHTMLHtmlStartTagInBody(AtomicHTMLToken&);
void insertHTMLBodyStartTagInBody(AtomicHTMLToken&);
PassRefPtr<Element> createHTMLElement(AtomicHTMLToken&);
PassRefPtr<Element> createHTMLElementFromElementRecord(HTMLElementStack::ElementRecord*);
bool shouldFosterParent() const;
void fosterParent(Node*);
bool indexOfFirstUnopenFormattingElement(unsigned& firstUnopenElementIndex) const;
void reconstructTheActiveFormattingElements();
void generateImpliedEndTags();
void generateImpliedEndTagsWithExclusion(const AtomicString& tagName);
Element* currentElement() const { return m_openElements.top(); }
Element* oneBelowTop() const { return m_openElements.oneBelowTop(); }
HTMLElementStack* openElements() const { return &m_openElements; }
HTMLFormattingElementList* activeFormattingElements() const { return &m_activeFormattingElements; }
Element* head() const { return m_head.get(); }
void setForm(HTMLFormElement*);
HTMLFormElement* form() const { return m_form.get(); }
PassRefPtr<HTMLFormElement> takeForm();
class RedirectToFosterParentGuard : public Noncopyable {
public:
RedirectToFosterParentGuard(HTMLConstructionSite& tree)
: m_tree(tree)
, m_wasRedirectingBefore(tree.m_redirectAttachToFosterParent)
{
m_tree.m_redirectAttachToFosterParent = true;
}
~RedirectToFosterParentGuard()
{
m_tree.m_redirectAttachToFosterParent = m_wasRedirectingBefore;
}
private:
HTMLConstructionSite& m_tree;
bool m_wasRedirectingBefore;
};
private:
struct AttachmentSite {
Node* parent;
Node* nextChild;
};
template<typename ChildType>
PassRefPtr<ChildType> attach(Node* parent, PassRefPtr<ChildType> child);
PassRefPtr<Element> attachToCurrent(PassRefPtr<Element>);
void attachAtSite(const AttachmentSite&, PassRefPtr<Node> child);
void findFosterSite(AttachmentSite&);
PassRefPtr<Element> createHTMLElementFromSavedElement(Element*);
PassRefPtr<Element> createElement(AtomicHTMLToken&, const AtomicString& namespaceURI);
void mergeAttributesFromTokenIntoElement(AtomicHTMLToken&, Element*);
void dispatchDocumentElementAvailableIfNeeded();
Document* m_document;
RefPtr<Element> m_head;
RefPtr<HTMLFormElement> m_form;
mutable HTMLElementStack m_openElements;
mutable HTMLFormattingElementList m_activeFormattingElements;
FragmentScriptingPermission m_fragmentScriptingPermission;
bool m_isParsingFragment;
// http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#parsing-main-intable
// In the "in table" insertion mode, we sometimes get into a state where
// "whenever a node would be inserted into the current node, it must instead
// be foster parented." This flag tracks whether we're in that state.
bool m_redirectAttachToFosterParent;
};
}
#endif
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