/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * ***** 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
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 *
 * 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
 * Mozilla Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Shawn Wilsher <me@shawnwilsher.com> (Original Author)
 *
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 * either 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"),
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 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

interface nsIURI;

/**
 * This interface can be used to add a download to history.  There is a separate
 * interface specifically for downloads in case embedders choose to track
 * downloads differently from other types of history.
 */
[scriptable, uuid(202533cd-a8f1-4ee4-8d20-3a6a0d2c6c51)]
interface nsIDownloadHistory : nsISupports {
  /**
   * Adds a download to history.  This will also notify observers that the
   * URI aSource is visited with the topic NS_LINK_VISITED_EVENT_TOPIC if
   * aSource has not yet been visited.
   *
   * @param aSource
   *        The source of the download we are adding to history.  This cannot be
   *        null.
   * @param aReferrer
   *        [optional] The referrer of source URI.
   * @param aStartTime
   *        [optional] The time the download was started.  If the start time
   *        is not given, the current time is used.
   * @throws NS_ERROR_NOT_AVAILABLE
   *         In a situation where a history implementation is not available,
   *         where 'history implementation' refers to something like
   *         nsIGlobalHistory and friends.
   */
  void addDownload(in nsIURI aSource, [optional] in nsIURI aReferrer,
                   [optional] in PRTime aStartTime);
};