/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */
#ifndef nsIStreamConverter_h_
#define nsIStreamConverter_h_

#include "nsIStreamListener.h" 
#include "nsIOutputStream.h" 

// {C9CDF8E5-95FA-11d2-8807-00805F5A1FB8} 
#define NS_ISTREAM_CONVERTER_IID \
   { 0xc9cdf8e5, 0x95fa, 0x11d2,    \
   { 0x88, 0x7, 0x0, 0x80, 0x5f, 0x5a, 0x1f, 0xb8 } };

class nsIStreamConverter : public nsIStreamListener { 
public: 
  static const nsIID& GetIID() { static nsIID iid = NS_ISTREAM_CONVERTER_IID; return iid; }

    // 
    // This is the output stream where the stream converter will write processed data after 
    // conversion. 
    // 
    NS_IMETHOD SetOutputStream(nsIOutputStream *outStream) = 0; 

    // 
    // The output listener can be set to allow for the flexibility of having the stream converter 
    // directly notify the listener of the output stream for any processed/converter data. If 
    // this output listener is not set, the data will be written into the output stream but it is 
    // the responsibility of the client of the stream converter to handle the resulting data. 
    // 
    NS_IMETHOD SetOutputListener(nsIStreamListener *outListner) = 0; 
}; 

#endif /* nsIStreamConverter_h_ */