PerformanceObserver.webidl (1140B)
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/. 5 * 6 * The origin of this IDL file is 7 * https://w3c.github.io/performance-timeline/#the-performanceobserver-interface 8 */ 9 10 dictionary PerformanceObserverInit { 11 sequence<DOMString> entryTypes; 12 DOMString type; 13 boolean buffered; 14 [Pref="dom.enable_event_timing"] 15 DOMHighResTimeStamp durationThreshold; 16 }; 17 18 callback PerformanceObserverCallback = undefined (PerformanceObserverEntryList entries, 19 PerformanceObserver observer); 20 21 [Pref="dom.enable_performance_observer", 22 Exposed=(Window,Worker)] 23 interface PerformanceObserver { 24 [Throws] 25 constructor(PerformanceObserverCallback callback); 26 27 [Throws] undefined observe(optional PerformanceObserverInit options = {}); 28 undefined disconnect(); 29 PerformanceEntryList takeRecords(); 30 static readonly attribute object supportedEntryTypes; 31 };