/*
 * 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 APPLE 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 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 DecodedDataDocumentParser_h
#define DecodedDataDocumentParser_h

#include "core/CoreExport.h"
#include "core/dom/DocumentParser.h"
#include <memory>

namespace blink {
class TextResourceDecoder;

class CORE_EXPORT DecodedDataDocumentParser : public DocumentParser {
 public:
  // Only used by the XMLDocumentParser to communicate back to
  // XMLHttpRequest if the responseXML was well formed.
  virtual bool wellFormed() const { return true; }

  // The below functions are used by DocumentWriter (the loader).
  void appendBytes(const char* bytes, size_t length) override;
  virtual void flush();
  bool needsDecoder() const final { return m_needsDecoder; }
  void setDecoder(std::unique_ptr<TextResourceDecoder>) override;
  TextResourceDecoder* decoder() final;

  std::unique_ptr<TextResourceDecoder> takeDecoder();

 protected:
  explicit DecodedDataDocumentParser(Document&);
  ~DecodedDataDocumentParser() override;

 private:
  void updateDocument(String& decodedData);

  bool m_needsDecoder;
  std::unique_ptr<TextResourceDecoder> m_decoder;
};

}  // namespace blink

#endif  // DecodedDataDocumentParser_h
