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/*
* Copyright (C) 2011 Apple 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 XMLTreeBuilder_h
#define XMLTreeBuilder_h
#include "Text.h"
#include "XMLToken.h"
#include <wtf/PassOwnPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
class ContainerNode;
class Document;
class DocumentFragment;
class NewXMLDocumentParser;
class XMLTreeBuilder {
WTF_MAKE_NONCOPYABLE(XMLTreeBuilder);
WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<XMLTreeBuilder> create(NewXMLDocumentParser* parser, Document* document)
{
return adoptPtr(new XMLTreeBuilder(parser, document));
}
static PassOwnPtr<XMLTreeBuilder> create(NewXMLDocumentParser* parser, DocumentFragment* document, Element* parent)
{
return adoptPtr(new XMLTreeBuilder(parser, document, parent));
}
void processToken(const AtomicXMLToken&);
void finish();
private:
XMLTreeBuilder(NewXMLDocumentParser*, Document*);
XMLTreeBuilder(NewXMLDocumentParser*, DocumentFragment*, Element* parent);
class NodeStackItem {
public:
NodeStackItem(PassRefPtr<ContainerNode> item, NodeStackItem* parent = 0);
bool hasNamespaceURI(AtomicString prefix);
AtomicString namespaceURI(AtomicString prefix);
AtomicString namespaceURI() { return m_namespace; }
void setNamespaceURI(AtomicString prefix, AtomicString uri);
void setNamespaceURI(AtomicString uri) { m_namespace = uri; }
AtomicString namespaceForPrefix(AtomicString prefix, AtomicString fallback);
PassRefPtr<ContainerNode> node() { return m_node; }
const ContainerNode* node() const { return m_node.get(); }
void setNode(PassRefPtr<ContainerNode> node) { m_node = node; }
private:
HashMap<AtomicString, AtomicString> m_scopedNamespaces;
RefPtr<ContainerNode> m_node;
AtomicString m_namespace;
};
void pushCurrentNode(const NodeStackItem&);
void popCurrentNode();
void closeElement(PassRefPtr<Element>);
void processProcessingInstruction(const AtomicXMLToken&);
void processXMLDeclaration(const AtomicXMLToken&);
void processDOCTYPE(const AtomicXMLToken&);
void processStartTag(const AtomicXMLToken&);
void processEndTag(const AtomicXMLToken&);
void processCDATA(const AtomicXMLToken&);
void processCharacter(const AtomicXMLToken&);
void processComment(const AtomicXMLToken&);
void processEntity(const AtomicXMLToken&);
void processNamespaces(const AtomicXMLToken&, NodeStackItem&);
void processAttributes(const AtomicXMLToken&, NodeStackItem&, PassRefPtr<Element> newElement);
void processXMLEntity(const AtomicXMLToken&);
void processHTMLEntity(const AtomicXMLToken&);
inline void add(PassRefPtr<Node>);
void appendToText(const UChar* characters, size_t length);
void enterText();
void exitText();
bool failOnText();
AtomicString namespaceForPrefix(AtomicString prefix, AtomicString fallback);
Document* m_document;
NewXMLDocumentParser* m_parser;
bool m_isXHTML;
bool m_sawFirstElement;
Vector<NodeStackItem> m_currentNodeStack;
OwnPtr<StringBuilder> m_leafText;
};
}
#endif // XMLTreeBuilder_h
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