/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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"

[scriptable, uuid(D5B61B82-1DA4-11d3-BF87-00105A1B0627)]
interface nsIController : nsISupports {
  boolean isCommandEnabled(in string command);
  boolean supportsCommand(in string command);

  void doCommand(in string command);

  void onEvent(in string eventName);
};


/*

  Enhanced controller interface that allows for passing of parameters
  to commands.
  
*/

interface nsICommandParams;

[scriptable, uuid(EEC0B435-7F53-44FE-B00A-CF3EED65C01A)]
interface nsICommandController : nsISupports
{
  
  void        getCommandStateWithParams( in string command, in nsICommandParams aCommandParams);
    
  void        doCommandWithParams(in string command, in nsICommandParams aCommandParams);

  void getSupportedCommands(out unsigned long count,
                            [array, size_is(count), retval] out string commands);
};


/*
  An API for registering commands in groups, to allow for 
  updating via nsIDOMWindow::UpdateCommands.
*/
interface nsISimpleEnumerator;

[scriptable, uuid(9F82C404-1C7B-11D5-A73C-ECA43CA836FC)]
interface nsIControllerCommandGroup : nsISupports
{

  void  addCommandToGroup(in string aCommand, in string aGroup);
  void  removeCommandFromGroup(in string aCommand, in string aGroup);
  
  boolean isCommandInGroup(in string aCommand, in string aGroup);

  /*
    We should expose some methods that allow for enumeration.
  */
  nsISimpleEnumerator getGroupsEnumerator();
  
  nsISimpleEnumerator getEnumeratorForGroup(in string aGroup);

};

