1 files changed, 23 insertions, 0 deletions
diff --git a/dom/interfaces/xul/nsIDOMXULContainerElement.idl b/dom/interfaces/xul/nsIDOMXULContainerElement.idl
new file mode 100644
index 0000000000..78b8275f35
--- /dev/null
+++ b/dom/interfaces/xul/nsIDOMXULContainerElement.idl
@@ -0,0 +1,23 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsIDOMXULContainerElement;
+
+webidl Element;
+
+[scriptable, uuid(800a68c7-b854-4597-a436-3055ce5c5c96)]
+interface nsIDOMXULContainerItemElement : nsISupports
+{
+  /**
+   * Returns the parent container if any.
+   */
+  readonly attribute Element parentContainer;
+};
+
+[scriptable, uuid(b2bc96b8-31fc-42f4-937a-bd27291af40b)]
+interface nsIDOMXULContainerElement : nsIDOMXULContainerItemElement
+{
+};