diff -r 000000000000 -r 6474c204b198 accessible/public/nsIAccessibleVirtualCursorChangeEvent.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/public/nsIAccessibleVirtualCursorChangeEvent.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; 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 "nsIAccessibleEvent.idl"
+
+/*
+ * An interface for virtual cursor changed events.
+ * Passes previous cursor position and text offsets.
+ */
+[scriptable, builtinclass, uuid(370e8b9b-2bbc-4bff-a9c7-16ddc54aea21)]
+interface nsIAccessibleVirtualCursorChangeEvent : nsIAccessibleEvent
+{
+  /**
+   * Previous object pointed at by virtual cursor. null if none.
+   */
+  readonly attribute nsIAccessible oldAccessible;
+
+  /**
+   * Previous start offset of pivot. -1 if none.
+   */
+  readonly attribute long oldStartOffset;
+
+  /**
+   * Previous end offset of pivot. -1 if none.
+   */
+  readonly attribute long oldEndOffset;
+
+  /**
+   * Reason for virtual cursor move.
+   */
+  readonly attribute short reason;
+};