TextDocument.h   [plain text]

/*
 * Copyright (C) 2006 Apple Computer, 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 APPLE COMPUTER, 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 APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * 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 TextDocument_h
#define TextDocument_h

#include "HTMLDocument.h"
#include "Tokenizer.h"

namespace WebCore {

class DOMImplementation;
class FrameView;
class HTMLViewSourceDocument;

class TextTokenizer : public Tokenizer {
public:
    TextTokenizer(Document* doc);
    TextTokenizer(HTMLViewSourceDocument* doc);

    virtual bool write(const SegmentedString&, bool appendData);
    virtual void finish();
    virtual bool isWaitingForScripts() const;
    
    inline void checkBuffer(int len = 10)
    {
        if ((m_dest - m_buffer) > m_size - len) {
            // Enlarge buffer
            int newSize = std::max(m_size * 2, m_size + len);
            int oldOffset = m_dest - m_buffer;
            m_buffer = static_cast<UChar*>(fastRealloc(m_buffer, newSize * sizeof(UChar)));
            m_dest = m_buffer + oldOffset;
            m_size = newSize;
        }
    }
        
private:
    Document* m_doc;
    Element* m_preElement;

    bool m_skipLF;
    
    int m_size;
    UChar* m_buffer;
    UChar* m_dest;
};

class TextDocument : public HTMLDocument
{
public:
    TextDocument(DOMImplementation*, Frame*);
    
    virtual Tokenizer* createTokenizer();
};

}

#endif // TextDocument_h