widget/nsIBidiKeyboard.idl
author Andrea Marchesini <amarchesini@mozilla.com>
Wed, 29 Apr 2015 09:46:00 +0200
changeset 273122 1d8a8363362266ded5166b33c96d2910e8d48322
parent 271029 103433e8eb3c2a034b45e614e1a036252d2bb52f
permissions -rw-r--r--
Bug 1159794 - "fix the comment for dom.workers.websocket.enabled in all.js" . r=bz

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

[builtinclass, scriptable, uuid(288dae24-76e2-43a3-befe-9d9fabe8014e)]
interface nsIBidiKeyboard : nsISupports
{
  /**
   * Inspects the installed keyboards and resets the bidi keyboard state
   */
  void reset();

  /**
   * Determines if the current keyboard language is right-to-left
   * @throws NS_ERROR_FAILURE if no right-to-left keyboards are installed
   */
  boolean isLangRTL();

  /**
   * Determines whether the system has at least one keyboard of each direction
   * installed.
   *
   * @throws NS_ERROR_NOT_IMPLEMENTED if the widget layer does not provide this
   * information.
   */
  readonly attribute boolean haveBidiKeyboards;
};