/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla 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/MPL/
 *
 * 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 the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#include "nsISupports.idl"


%{C++
// {8B042E22-6F87-11d3-B3C8-00805F8A6670}
#define NS_TEXTTOSUBURI_CID { 0x8b042e22, 0x6f87, 0x11d3, { 0xb3, 0xc8, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
#define NS_ITEXTTOSUBURI_CONTRACTID "@mozilla.org/intl/texttosuburi;1"
%}

[scriptable, uuid(8B042E24-6F87-11d3-B3C8-00805F8A6670)]
interface nsITextToSubURI : nsISupports
{
	string ConvertAndEscape(in string charset, in wstring text);
	wstring UnEscapeAndConvert(in string charset, in string text);

  /**
   * Unescapes the given URI fragment (for UI purpose only)
   * Note: 
   * <ul>
   *  <li> escaping back the result (unescaped string) is not guaranteed to 
   *       give the original escaped string
   *  <li> In case of a conversion error, the URI fragment (escaped) is 
   *       assumed to be in UTF-8 and converted to AString (UTF-16)
   *  <li> Always succeeeds (callers don't need to do error checking)
   * </ul>
   *
   * @param aCharset the charset to convert from
   * @param aURIFragment the URI (or URI fragment) to unescape
   * @return Unescaped aURIFragment  converted to unicode
   */
  AString unEscapeURIForUI(in ACString aCharset, in AUTF8String aURIFragment);

  /**
   * Unescapes only non ASCII characters in the given URI fragment 
   * note: this method assumes the URI as UTF-8 and fallbacks to the given 
   * charset if the charset is an ASCII superset 
   *
   * @param aCharset the charset to convert from
   * @param aURIFragment the URI (or URI fragment) to unescape
   * @return Unescaped aURIFragment  converted to unicode
   * @throws NS_ERROR_UCONV_NOCONV when there is no decoder for aCharset
   *         or error code of nsIUnicodeDecoder in case of conversion failure
   */
  AString unEscapeNonAsciiURI(in ACString aCharset, in AUTF8String aURIFragment);
};
