/* -*- 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 Selection code.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Corporation
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Justin Lebar <justin.lebar@gmail.com>
 *
 * 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"

[scriptable, uuid(94ac0cb4-95b4-11df-8e13-0026b9792740)]
interface nsISelection3 : nsISupports
{
  /**
   * Modifies the selection.  Note that the parameters are case-insensitive.
   *
   * @param alter can be one of { "move", "extend" }
   *   - "move" collapses the selection to the end of the selection and
   *      applies the movement direction/granularity to the collapsed
   *      selection.
   *   - "extend" leaves the start of the selection unchanged, and applies
   *      movement direction/granularity to the end of the selection.
   * @param direction can be one of { "forward", "backward", "left", "right" }
   * @param granularity can be one of { "character", "word",
   *                                    "line", "lineboundary" }
   *
   * @returns NS_ERROR_NOT_IMPLEMENTED if the granularity is "sentence",
   * "sentenceboundary", "paragraph", "paragraphboundary", or
   * "documentboundary".  Returns NS_ERROR_INVALID_ARG if alter, direction,
   * or granularity has an unrecognized value.
   */
  void modify(in DOMString alter, in DOMString direction,
              in DOMString granularity);

};