pjs/widget/nsIBidiKeyboard.idl

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/* -*- 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 IBM code.
*
* The Initial Developer of the Original Code is
* IBM.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Simon Montagu
*
* 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
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*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
[scriptable, uuid(99957506-f21b-4a61-ad64-5b641cf508e2)]
interface nsIBidiKeyboard : nsISupports
{
/**
* Determines if the current keyboard language is right-to-left
* @throws NS_ERROR_FAILURE if no right-to-left keyboards are installed
*/
boolean isLangRTL();
/**
* Sets the keyboard language to left-to-right or right-to-left
* @param aLevel - if odd set the keyboard to RTL, if even set LTR
* @throws NS_ERROR_FAILURE if no right-to-left keyboards are installed
*/
void setLangFromBidiLevel(in PRUint8 aLevel);
/**
* 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;
};