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3f482941b5
Depends on D151306 Differential Revision: https://phabricator.services.mozilla.com/D151307
52 lines
2.1 KiB
C++
52 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PerformancePaintTiming.h"
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#include "Performance.h"
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#include "MainThreadUtils.h"
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#include "mozilla/dom/PerformanceMeasureBinding.h"
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#include "nsRFPService.h"
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_INHERITED(PerformancePaintTiming, PerformanceEntry,
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mPerformance)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PerformancePaintTiming)
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NS_INTERFACE_MAP_END_INHERITING(PerformanceEntry)
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NS_IMPL_ADDREF_INHERITED(PerformancePaintTiming, PerformanceEntry)
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NS_IMPL_RELEASE_INHERITED(PerformancePaintTiming, PerformanceEntry)
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PerformancePaintTiming::PerformancePaintTiming(Performance* aPerformance,
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const nsAString& aName,
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const TimeStamp& aStartTime)
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: PerformanceEntry(aPerformance->GetParentObject(), aName, u"paint"_ns),
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mPerformance(aPerformance),
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mRawStartTime(aStartTime) {}
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PerformancePaintTiming::~PerformancePaintTiming() = default;
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JSObject* PerformancePaintTiming::WrapObject(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return PerformancePaintTiming_Binding::Wrap(aCx, this, aGivenProto);
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}
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DOMHighResTimeStamp PerformancePaintTiming::StartTime() const {
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if (mCachedStartTime.isNothing()) {
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DOMHighResTimeStamp rawValue =
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mPerformance->GetDOMTiming()->TimeStampToDOMHighRes(mRawStartTime);
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mCachedStartTime.emplace(nsRFPService::ReduceTimePrecisionAsMSecs(
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rawValue, mPerformance->GetRandomTimelineSeed(),
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mPerformance->GetRTPCallerType()));
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}
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return mCachedStartTime.value();
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}
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size_t PerformancePaintTiming::SizeOfIncludingThis(
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mozilla::MallocSizeOf aMallocSizeOf) const {
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return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
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}
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