1 files changed, 24 insertions, 0 deletions
diff --git a/dom/webidl/BeforeAfterKeyboardEvent.webidl b/dom/webidl/BeforeAfterKeyboardEvent.webidl
new file mode 100644
index 000000000..32c582f17
--- /dev/null
+++ b/dom/webidl/BeforeAfterKeyboardEvent.webidl
@@ -0,0 +1,24 @@
+/* -*- 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/.
+ */
+
+[Constructor(DOMString typeArg,
+ optional BeforeAfterKeyboardEventInit eventInitDict),
+ Pref="dom.beforeAfterKeyboardEvent.enabled",
+ ChromeOnly]
+interface BeforeAfterKeyboardEvent : KeyboardEvent
+{
+  // The valid value of embeddedCancelled is:
+  // - "mozbrowserbeforekeydown": null
+  // - "mozbrowserbeforekeyup": null
+  // - "mozbrowserafterkeydown": true/false
+  // - "mozbrowserafterkeyup": true/false
+  readonly attribute boolean? embeddedCancelled;
+};
+
+dictionary BeforeAfterKeyboardEventInit : KeyboardEventInit
+{
+  boolean? embeddedCancelled = null;
+};