1 files changed, 157 insertions, 0 deletions
diff --git a/dom/performance/PerformanceNavigationTiming.cpp b/dom/performance/PerformanceNavigationTiming.cpp
new file mode 100644
index 0000000000..b379d8111c
--- /dev/null
+++ b/dom/performance/PerformanceNavigationTiming.cpp
@@ -0,0 +1,157 @@
+/* -*- 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/. */
+
+#include "mozilla/dom/PerformanceNavigationTiming.h"
+#include "mozilla/dom/PerformanceNavigationTimingBinding.h"
+#include "mozilla/StaticPrefs_dom.h"
+#include "mozilla/StaticPrefs_privacy.h"
+
+using namespace mozilla::dom;
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PerformanceNavigationTiming)
+NS_INTERFACE_MAP_END_INHERITING(PerformanceResourceTiming)
+
+NS_IMPL_ADDREF_INHERITED(PerformanceNavigationTiming, PerformanceResourceTiming)
+NS_IMPL_RELEASE_INHERITED(PerformanceNavigationTiming,
+                          PerformanceResourceTiming)
+
+JSObject* PerformanceNavigationTiming::WrapObject(
+    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
+  return PerformanceNavigationTiming_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+#define REDUCE_TIME_PRECISION                          \
+  return nsRFPService::ReduceTimePrecisionAsMSecs(     \
+      rawValue, mPerformance->GetRandomTimelineSeed(), \
+      mPerformance->GetRTPCallerType())
+
+DOMHighResTimeStamp PerformanceNavigationTiming::UnloadEventStart() const {
+  DOMHighResTimeStamp rawValue = 0;
+  /*
+   * Per Navigation Timing Level 2, the value is 0 if
+   * a. there is no previous document or
+   * b. the same-origin-check fails.
+   *
+   * The same-origin-check is defined as:
+   * 1. If the previous document exists and its origin is not same
+   *    origin as the current document's origin, return "fail".
+   * 2. Let request be the current document's request.
+   * 3. If request's redirect count is not zero, and all of request's
+   *    HTTP redirects have the same origin as the current document,
+   *    return "pass".
+   * 4. Otherwise, return "fail".
+   */
+  if (mTimingData->AllRedirectsSameOrigin()) {  // same-origin-check:2/3
+    /*
+     * GetUnloadEventStartHighRes returns 0 if
+     * 1. there is no previous document (a, above) or
+     * 2. the current URI does not have the same origin as
+     *    the previous document's URI. (same-origin-check:1)
+     */
+    rawValue = mPerformance->GetDOMTiming()->GetUnloadEventStartHighRes();
+  }
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::UnloadEventEnd() const {
+  DOMHighResTimeStamp rawValue = 0;
+
+  // See comments in PerformanceNavigationTiming::UnloadEventEnd().
+  if (mTimingData->AllRedirectsSameOrigin()) {
+    rawValue = mPerformance->GetDOMTiming()->GetUnloadEventEndHighRes();
+  }
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::DomInteractive() const {
+  DOMHighResTimeStamp rawValue =
+      mPerformance->GetDOMTiming()->GetDomInteractiveHighRes();
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::DomContentLoadedEventStart()
+    const {
+  DOMHighResTimeStamp rawValue =
+      mPerformance->GetDOMTiming()->GetDomContentLoadedEventStartHighRes();
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::DomContentLoadedEventEnd()
+    const {
+  DOMHighResTimeStamp rawValue =
+      mPerformance->GetDOMTiming()->GetDomContentLoadedEventEndHighRes();
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::DomComplete() const {
+  DOMHighResTimeStamp rawValue =
+      mPerformance->GetDOMTiming()->GetDomCompleteHighRes();
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::LoadEventStart() const {
+  DOMHighResTimeStamp rawValue =
+      mPerformance->GetDOMTiming()->GetLoadEventStartHighRes();
+
+  REDUCE_TIME_PRECISION;
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::LoadEventEnd() const {
+  DOMHighResTimeStamp rawValue =
+      mPerformance->GetDOMTiming()->GetLoadEventEndHighRes();
+
+  REDUCE_TIME_PRECISION;
+}
+
+NavigationType PerformanceNavigationTiming::Type() const {
+  switch (mPerformance->GetDOMTiming()->GetType()) {
+    case nsDOMNavigationTiming::TYPE_NAVIGATE:
+      return NavigationType::Navigate;
+      break;
+    case nsDOMNavigationTiming::TYPE_RELOAD:
+      return NavigationType::Reload;
+      break;
+    case nsDOMNavigationTiming::TYPE_BACK_FORWARD:
+      return NavigationType::Back_forward;
+      break;
+    default:
+      // The type is TYPE_RESERVED or some other value that was later added.
+      // We fallback to the default of Navigate.
+      return NavigationType::Navigate;
+  }
+}
+
+uint16_t PerformanceNavigationTiming::RedirectCount() const {
+  return mTimingData->GetRedirectCount();
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::RedirectStart(
+    Maybe<nsIPrincipal*>& aSubjectPrincipal) const {
+  return PerformanceResourceTiming::RedirectStart(
+      aSubjectPrincipal, true /* aEnsureSameOriginAndIgnoreTAO */);
+}
+
+DOMHighResTimeStamp PerformanceNavigationTiming::RedirectEnd(
+    Maybe<nsIPrincipal*>& aSubjectPrincipal) const {
+  return PerformanceResourceTiming::RedirectEnd(
+      aSubjectPrincipal, true /* aEnsureSameOriginAndIgnoreTAO */);
+}
+
+void PerformanceNavigationTiming::UpdatePropertiesFromHttpChannel(
+    nsIHttpChannel* aHttpChannel, nsITimedChannel* aChannel) {
+  mTimingData->SetPropertiesFromHttpChannel(aHttpChannel, aChannel);
+}
+
+bool PerformanceNavigationTiming::Enabled(JSContext* aCx, JSObject* aGlobal) {
+  return (StaticPrefs::dom_enable_performance_navigation_timing() &&
+          !StaticPrefs::privacy_resistFingerprinting());
+}