gecko-dev/dom/performance/PerformanceNavigationTiming.h
sanketh 8b9dee2da4 Bug 1511941 - Don't expose PerformanceNavigationTiming in RFP mode r=tjr,baku
In RFP mode, we do not support `PerformanceNavigationTiming`, so don't expose
it. In particular, `window.PerformanceNavigationTiming` should return
`undefined`.

Added a new method `PerformanceNavigationTiming::Enabled` which when used with
the WebIDL `Func` attribute allows us to toggle whether
`window.PerformanceNavigationTiming` is exposed.

Created
`dom/tests/mochitest/general/test_toggling_performance_navigation_timing.html`
to test whether the toggling works. Updated
`browser/components/resistfingerprinting/test/browser/browser_performanceAPI.js`
to create a new window each time `privacy.resistFingerprinting` is flipped so
this behavior does not leak into other tests.

Differential Revision: https://phabricator.services.mozilla.com/D73528
2020-05-07 16:33:38 +00:00

75 lines
2.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef mozilla_dom_PerformanceNavigationTiming_h___
#define mozilla_dom_PerformanceNavigationTiming_h___
#include "nsCOMPtr.h"
#include "nsITimedChannel.h"
#include "nsRFPService.h"
#include "mozilla/dom/PerformanceResourceTiming.h"
#include "mozilla/dom/PerformanceNavigationTimingBinding.h"
#include "nsIHttpChannel.h"
namespace mozilla {
namespace dom {
// https://www.w3.org/TR/navigation-timing-2/#sec-PerformanceNavigationTiming
class PerformanceNavigationTiming final : public PerformanceResourceTiming {
public:
NS_DECL_ISUPPORTS_INHERITED
// Note that aPerformanceTiming must be initalized with zeroTime = 0
// so that timestamps are relative to startTime, as opposed to the
// performance.timing object for which timestamps are absolute and has a
// zeroTime initialized to navigationStart
PerformanceNavigationTiming(
UniquePtr<PerformanceTimingData>&& aPerformanceTiming,
Performance* aPerformance, const nsAString& aName)
: PerformanceResourceTiming(std::move(aPerformanceTiming), aPerformance,
aName) {
SetEntryType(NS_LITERAL_STRING("navigation"));
SetInitiatorType(NS_LITERAL_STRING("navigation"));
}
DOMHighResTimeStamp Duration() const override {
return LoadEventEnd() - StartTime();
}
DOMHighResTimeStamp StartTime() const override { return 0; }
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
DOMHighResTimeStamp UnloadEventStart() const;
DOMHighResTimeStamp UnloadEventEnd() const;
DOMHighResTimeStamp DomInteractive() const;
DOMHighResTimeStamp DomContentLoadedEventStart() const;
DOMHighResTimeStamp DomContentLoadedEventEnd() const;
DOMHighResTimeStamp DomComplete() const;
DOMHighResTimeStamp LoadEventStart() const;
DOMHighResTimeStamp LoadEventEnd() const;
NavigationType Type() const;
uint16_t RedirectCount() const;
void UpdatePropertiesFromHttpChannel(nsIHttpChannel* aHttpChannel,
nsITimedChannel* aChannel);
/*
* For use with the WebIDL Func attribute to determine whether
* window.PerformanceNavigationTiming is exposed.
*/
static bool Enabled(JSContext* aCx, JSObject* aGlobal);
private:
~PerformanceNavigationTiming() = default;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PerformanceNavigationTiming_h___