1 files changed, 28 insertions, 0 deletions
diff --git a/dom/webidl/MessagePort.webidl b/dom/webidl/MessagePort.webidl
new file mode 100644
index 0000000000..349bf8fbee
--- /dev/null
+++ b/dom/webidl/MessagePort.webidl
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+/* -*- 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/.
+ *
+ * For more information on this interface, please see
+ * https://html.spec.whatwg.org/#message-ports
+ */
+
+[Exposed=(Window,Worker,AudioWorklet)]
+interface MessagePort : EventTarget {
+  [Throws]
+  undefined postMessage(any message, sequence<object> transferable);
+  [Throws]
+  undefined postMessage(any message, optional StructuredSerializeOptions options = {});
+
+  undefined start();
+  undefined close();
+
+  // event handlers
+  attribute EventHandler onmessage;
+  attribute EventHandler onmessageerror;
+};
+
+// Used to declare which objects should be transferred.
+dictionary StructuredSerializeOptions {
+  sequence<object> transfer = [];
+};