/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1999 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 */

#ifndef nsUnknownDecoder_h__
#define nsUnknownDecoder_h__

#include "nsIStreamConverter.h"
#include "nsIChannel.h"

#include "nsCOMPtr.h"
#include "nsString.h"

#define NS_UNKNOWNDECODER_CID                        \
{ /* 7d7008a0-c49a-11d3-9b22-0080c7cb1080 */         \
    0x7d7008a0,                                      \
    0xc49a,                                          \
    0x11d3,                                          \
    {0x9b, 0x22, 0x00, 0x80, 0xc7, 0xcb, 0x10, 0x80}       \
}


class nsUnknownDecoder : public nsIStreamConverter
{
public:
  // nsISupports methods
  NS_DECL_ISUPPORTS

  // nsIStreamConverter methods
  NS_DECL_NSISTREAMCONVERTER

  // nsIStreamListener methods
  NS_DECL_NSISTREAMLISTENER

  // nsIStreamObserver methods
  NS_DECL_NSISTREAMOBSERVER


  nsUnknownDecoder();

protected:
  virtual ~nsUnknownDecoder();

  void DetermineContentType();
  nsresult FireListenerNotifications(nsIChannel *aChannel, nsISupports *aCtxt);

protected:
  nsCOMPtr<nsIStreamListener> mNextListener;

  char *mBuffer;
  PRUint32 mBufferLen;

  nsCString mContentType;
};


#endif /* nsUnknownDecoder_h__ */