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/*
* Copyright (C) 2000 Peter Kelly (pmk@post.com)
* Copyright (C) 2005, 2006 Apple Computer, Inc.
* Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
* Copyright (C) 2010 Google, Inc.
*
* 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.
*
*/
#ifndef DocumentParser_h
#define DocumentParser_h
#include <wtf/Noncopyable.h>
namespace WebCore {
class Document;
class DocumentWriter;
class LegacyHTMLTreeBuilder;
class SegmentedString;
class ScriptableDocumentParser;
class DocumentParser : public Noncopyable {
public:
virtual ~DocumentParser() { }
virtual ScriptableDocumentParser* asScriptableDocumentParser() { return 0; }
// http://www.whatwg.org/specs/web-apps/current-work/#insertion-point
virtual bool hasInsertionPoint() { return true; }
// insert is used by document.write
virtual void insert(const SegmentedString&) = 0;
// appendBytes is used by DocumentWriter (the loader)
virtual void appendBytes(DocumentWriter*, const char* bytes, int length, bool flush) = 0;
// FIXME: append() should be private, but DocumentWriter::replaceDocument
// uses it for now.
virtual void append(const SegmentedString&) = 0;
virtual void finish() = 0;
virtual bool finishWasCalled() = 0;
virtual void stopParsing() { m_parserStopped = true; }
// FIXME: processingData() is only used by DocumentLoader::isLoadingInAPISense
// and is very unclear as to what it actually means. Only LegacyHTMLDocumentParser
// actually implements it.
virtual bool processingData() const { return false; }
// FIXME: Exposed for HTMLFormControlElement::removedFromTree. HTML DOM
// code should not need to reach into implementation details of the parser.
virtual LegacyHTMLTreeBuilder* htmlTreeBuilder() const { return 0; }
Document* document() const { return m_document; }
protected:
DocumentParser(Document*);
// The parser has buffers, so parsing may continue even after
// it stops receiving data. We use m_parserStopped to stop the parser
// even when it has buffered data.
bool m_parserStopped;
// Every DocumentParser needs a pointer back to the document.
Document* m_document;
};
} // namespace WebCore
#endif // DocumentParser_h
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