diff -r 000000000000 -r 6474c204b198 content/xul/document/public/nsIController.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/xul/document/public/nsIController.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,62 @@
+/* -*- 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(EBE55080-C8A9-11D5-A73C-DD620D6E04BC)]
+interface nsICommandController : nsISupports
+{
+  
+  void        getCommandStateWithParams( in string command, in nsICommandParams aCommandParams);
+    
+  void        doCommandWithParams(in string command, in nsICommandParams aCommandParams);
+
+};
+
+
+/*
+  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);
+
+};
+