/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
/* ***** 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
 * Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Alexander Surkov <surkov.alexander@gmail.com> (original author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * 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"),
 * 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"

/**
 * These constants control the scrolling of an object or substring into a
 * window. Note, keep them synchronized with IA2ScrollType.
 */
[scriptable, uuid(05cd38b1-94b3-4cdf-8371-3935a9611405)]
interface nsIAccessibleScrollType : nsISupports
{
  /**
   * Scroll the top left of the object or substring to the top left of the
   * window (or as close as possible).
   */
  const unsigned long SCROLL_TYPE_TOP_LEFT =0x00;

  /**
   * Scroll the bottom right of the object or substring to the bottom right of
   * the window (or as close as possible).
   */
  const unsigned long SCROLL_TYPE_BOTTOM_RIGHT = 0x01;

  /**
   * Scroll the top edge of the object or substring to the top edge of the
   * window (or as close as possible).
   */
  const unsigned long SCROLL_TYPE_TOP_EDGE = 0x02;

  /**
   * Scroll the bottom edge of the object or substring to the bottom edge of
   * the window (or as close as possible).
   */
  const unsigned long SCROLL_TYPE_BOTTOM_EDGE = 0x03;

  /**
   * Scroll the left edge of the object or substring to the left edge of the
   * window (or as close as possible).
   */
  const unsigned long SCROLL_TYPE_LEFT_EDGE =0x04;

  /**
   * Scroll the right edge of the object or substring to the right edge of the
   * window (or as close as possible).
   */
  const unsigned long SCROLL_TYPE_RIGHT_EDGE = 0x05;

  /**
   * Scroll an object the minimum amount necessary in order for the entire
   * frame to be visible (if possible).
   */
  const unsigned long SCROLL_TYPE_ANYWHERE = 0x06;
};


/**
 * These constants define which coordinate system a point is located in.
 */
[scriptable, uuid(c9fbdf10-619e-436f-bf4b-8566686f1577)]
interface nsIAccessibleCoordinateType : nsISupports
{
  /**
   * The coordinates are relative to the screen.
   */
  const unsigned long COORDTYPE_SCREEN_RELATIVE = 0x00;

  /**
   * The coordinates are relative to the window.
   */
  const unsigned long COORDTYPE_WINDOW_RELATIVE = 0x01;

  /**
   * The coordinates are relative to the upper left corner of the bounding box
   * of the immediate parent.
   */
  const unsigned long COORDTYPE_PARENT_RELATIVE = 0x02;
};