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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/Assertions.h>
namespace WebCore {
class Document;
class LegacyHTMLTreeBuilder;
class LegacyHTMLDocumentParser;
class SegmentedString;
class XSSAuditor;
class DocumentParser : public Noncopyable {
public:
virtual ~DocumentParser() { }
// Script output must be prepended, while new data
// received during executing a script must be appended, hence the
// extra bool to be able to distinguish between both cases.
// document.write() always uses false, while the loader uses true.
virtual void write(const SegmentedString&, bool isFromNetwork) = 0;
virtual void finish() = 0;
virtual bool finishWasCalled() = 0;
virtual bool isWaitingForScripts() const = 0;
virtual bool isExecutingScript() const { return false; }
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; }
virtual bool wantsRawData() const { return false; }
virtual bool writeRawData(const char* /*data*/, int /*length*/)
{
ASSERT_NOT_REACHED();
return false;
}
virtual bool wellFormed() const { return true; }
virtual int lineNumber() const { return -1; }
virtual int columnNumber() const { return -1; }
virtual void executeScriptsWaitingForStylesheets() {}
virtual LegacyHTMLTreeBuilder* htmlTreeBuilder() const { return 0; }
virtual LegacyHTMLDocumentParser* asHTMLDocumentParser() { return 0; }
// FIXME: view source mode is only used by the HTML and Text
// DocumentParsers and may not belong on the base-class.
bool inViewSourceMode() const { return m_inViewSourceMode; }
void setInViewSourceMode(bool mode) { m_inViewSourceMode = mode; }
Document* document() const { return m_document; }
XSSAuditor* xssAuditor() const { return m_XSSAuditor; }
void setXSSAuditor(XSSAuditor* auditor) { m_XSSAuditor = auditor; }
protected:
DocumentParser(Document* document, bool viewSourceMode = false)
: m_parserStopped(false)
, m_inViewSourceMode(viewSourceMode)
, m_document(document)
, m_XSSAuditor(0)
{
ASSERT(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;
bool m_inViewSourceMode;
// Every DocumentParser needs a pointer back to the document.
Document* m_document;
// The XSSAuditor associated with this document parser.
XSSAuditor* m_XSSAuditor;
};
} // namespace WebCore
#endif // DocumentParser_h
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