Merge pull request #294 from janekptacijarabaci/js_dom_performance-resource-timing_2

moebius#161: The Performance Resource Timing (make timestamps be relative to startTime)

1 files changed, 71 insertions, 0 deletions

diff --git a/dom/performance/PerformanceNavigationTiming.h b/dom/performance/PerformanceNavigationTiming.h
new file mode 100644
index 000000000..8555f1987
--- /dev/null
+++ b/dom/performance/PerformanceNavigationTiming.h
@@ -0,0 +1,71 @@
+/* -*- 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 "nsIChannel.h"
+#include "nsITimedChannel.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
+  explicit PerformanceNavigationTiming(PerformanceTiming* aPerformanceTiming,
+                                       Performance* aPerformance,
+                                       nsIHttpChannel* aChannel)
+    : PerformanceResourceTiming(aPerformanceTiming, aPerformance,
+                                NS_LITERAL_STRING("document"), aChannel) {
+      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;
+
+private:
+  ~PerformanceNavigationTiming() {}
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_PerformanceNavigationTiming_h___