/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 *   Simon Montagu
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#include "nsISupports.idl"

[scriptable, uuid(0D8F8F10-C92D-4A6A-B2BB-E1921F3F4DDA)]
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);
};