DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (ae8d2f148d7d)

VCS Links

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/* -*- 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);

 private:
  ~PerformanceNavigationTiming() {}
};

}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_PerformanceNavigationTiming_h___