/* 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 https://mozilla.org/MPL/2.0/. */ /* * https://dom.spec.whatwg.org/#callbackdef-eventlistener */ [Exposed=Window] callback interface EventListener { undefined handleEvent(Event event); };