1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
4 * You can obtain one at http://mozilla.org/MPL/2.0/.
6 * The origin of this IDL file is
7 * https://w3c.github.io/performance-timeline/#the-performanceobserver-interface
10 dictionary PerformanceObserverInit {
11 sequence<DOMString> entryTypes;
16 callback PerformanceObserverCallback = void (PerformanceObserverEntryList entries,
17 PerformanceObserver observer);
19 [Pref="dom.enable_performance_observer",
20 Exposed=(Window,Worker)]
21 interface PerformanceObserver {
23 constructor(PerformanceObserverCallback callback);
25 [Throws] void observe(optional PerformanceObserverInit options = {});
27 PerformanceEntryList takeRecords();
28 static readonly attribute object supportedEntryTypes;