/* -*- 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/.
 *
 * The origin of this IDL file is
 * https://w3c.github.io/navigation-timing/#the-performancetiming-interface
 *
 * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
 * liability, trademark and document use rules apply.
 */

[Exposed=Window]
interface PerformanceTiming {
  readonly attribute unsigned long long navigationStart;
  readonly attribute unsigned long long unloadEventStart;
  readonly attribute unsigned long long unloadEventEnd;
  readonly attribute unsigned long long redirectStart;
  readonly attribute unsigned long long redirectEnd;
  readonly attribute unsigned long long fetchStart;
  readonly attribute unsigned long long domainLookupStart;
  readonly attribute unsigned long long domainLookupEnd;
  readonly attribute unsigned long long connectStart;
  readonly attribute unsigned long long connectEnd;
  readonly attribute unsigned long long secureConnectionStart;
  readonly attribute unsigned long long requestStart;
  readonly attribute unsigned long long responseStart;
  readonly attribute unsigned long long responseEnd;
  readonly attribute unsigned long long domLoading;
  readonly attribute unsigned long long domInteractive;
  readonly attribute unsigned long long domContentLoadedEventStart;
  readonly attribute unsigned long long domContentLoadedEventEnd;
  readonly attribute unsigned long long domComplete;
  readonly attribute unsigned long long loadEventStart;
  readonly attribute unsigned long long loadEventEnd;

  // This is a Chrome proprietary extension and not part of the
  // performance/navigation timing specification.
  // Returns 0 if a non-blank paint has not happened.
  [Pref="dom.performance.time_to_non_blank_paint.enabled"]
  readonly attribute unsigned long long timeToNonBlankPaint;

  // Returns 0 if a contentful paint has not happened.
  [Pref="dom.performance.time_to_contentful_paint.enabled"]
  readonly attribute unsigned long long timeToContentfulPaint;

  // This is a Mozilla proprietary extension and not part of the
  // performance/navigation timing specification. It marks the
  // completion of the first presentation flush after DOMContentLoaded.
  [Pref="dom.performance.time_to_dom_content_flushed.enabled"]
  readonly attribute unsigned long long timeToDOMContentFlushed;

  // This is a Chrome proprietary extension and not part of the
  // performance/navigation timing specification.
  // Returns 0 if a time-to-interactive measurement has not happened.
  [Pref="dom.performance.time_to_first_interactive.enabled"]
  readonly attribute unsigned long long timeToFirstInteractive;

  [Default] object toJSON();
};