/* -*- Mode: C++; tab-width: 2; 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) 1999
 * 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"
interface nsIRequest;
interface nsIInterfaceRequestor;

[scriptable, uuid(49439df2-b3d2-441c-bf62-866bdaf56fd2)]
interface nsIContentHandler : nsISupports
{
  /**
   * Tells the content handler to take over handling the content. If this
   * function succeeds, the URI Loader will leave this request alone, ignoring
   * progress notifications. Failure of this method will cause the request to be
   * cancelled, unless the error code is NS_ERROR_WONT_HANDLE_CONTENT (see
   * below).
   *
   * @param aWindowContext
   *        Window context, used to get things like the current nsIDOMWindow
   *        for this request. May be null.
   * @param aContentType
   *        The content type of aRequest
   * @param aRequest
   *        A request whose content type is already known.
   *
   * @throw NS_ERROR_WONT_HANDLE_CONTENT Indicates that this handler does not
   *        want to handle this content. A different way for handling this
   *        content should be tried.
   */
  void handleContent(in string aContentType,
                     in nsIInterfaceRequestor aWindowContext,
                     in nsIRequest aRequest);
};


%{C++

#define NS_ERROR_WONT_HANDLE_CONTENT   NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_URILOADER, 1)

%}
