/* 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"

interface nsICommandLine;

/**
 * Validates arguments on the command line of an XUL application.
 *
 * Each validator is registered in the category "command-line-validator".
 * The entries in this category are read in alphabetical order, and each
 * category value is treated as a service contractid implementing this
 * interface.
 *
 * By convention, validator with ordinary priority should begin with "m".
 *
 * Example:
 * Category               Entry          Value
 * command-line-validator b-browser      @mozilla.org/browser/clh;1
 * command-line-validator m-edit         @mozilla.org/composer/clh;1
 * command-line-validator m-irc          @mozilla.org/chatzilla/clh;1
 *
 */

[scriptable, uuid(5ecaa593-7660-4a3a-957a-92d5770671c7)]
interface nsICommandLineValidator : nsISupports
{
  /**
   * Process the command-line validators in the proper order, calling
   * "validate()" on each.
   *
   * @throws NS_ERROR_ABORT if any validator throws NS_ERROR_ABORT. All other
   *         errors thrown by validators will be silently ignored.
   */
  void validate(in nsICommandLine aCommandLine);
};