forked from mirrors/gecko-dev
312bff454e
IsPerformanceTimingAttribute can be called by both Window and WorkerGlobalScope global objects so we move it to the Performance* superclass. Differential Revision: https://phabricator.services.mozilla.com/D154819
114 lines
4.5 KiB
C++
114 lines
4.5 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 "PerformanceMark.h"
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#include "MainThreadUtils.h"
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#include "nsContentUtils.h"
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#include "Performance.h"
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#include "mozilla/dom/MessagePortBinding.h"
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#include "mozilla/dom/PerformanceBinding.h"
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#include "mozilla/dom/PerformanceMarkBinding.h"
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using namespace mozilla::dom;
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PerformanceMark::PerformanceMark(nsISupports* aParent, const nsAString& aName,
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DOMHighResTimeStamp aStartTime,
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const JS::Handle<JS::Value>& aDetail)
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: PerformanceEntry(aParent, aName, u"mark"_ns),
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mStartTime(aStartTime),
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mDetail(aDetail) {
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mozilla::HoldJSObjects(this);
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}
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already_AddRefed<PerformanceMark> PerformanceMark::Constructor(
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const GlobalObject& aGlobal, const nsAString& aMarkName,
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const PerformanceMarkOptions& aMarkOptions, ErrorResult& aRv) {
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const nsCOMPtr<nsIGlobalObject> global =
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do_QueryInterface(aGlobal.GetAsSupports());
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return PerformanceMark::Constructor(aGlobal.Context(), global, aMarkName,
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aMarkOptions, aRv);
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}
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already_AddRefed<PerformanceMark> PerformanceMark::Constructor(
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JSContext* aCx, nsIGlobalObject* aGlobal, const nsAString& aMarkName,
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const PerformanceMarkOptions& aMarkOptions, ErrorResult& aRv) {
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RefPtr<Performance> performance = Performance::Get(aCx, aGlobal);
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if (!performance) {
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// This is similar to the message that occurs when accessing `performance`
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// from outside a valid global.
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aRv.ThrowTypeError(
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"can't access PerformanceMark constructor, performance is null");
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return nullptr;
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}
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if (performance->IsGlobalObjectWindow() &&
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performance->IsPerformanceTimingAttribute(aMarkName)) {
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aRv.ThrowSyntaxError("markName cannot be a performance timing attribute");
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return nullptr;
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}
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DOMHighResTimeStamp startTime = aMarkOptions.mStartTime.WasPassed()
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? aMarkOptions.mStartTime.Value()
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: performance->Now();
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if (startTime < 0) {
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aRv.ThrowTypeError("Expected startTime >= 0");
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return nullptr;
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}
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JS::Rooted<JS::Value> detail(aCx);
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if (aMarkOptions.mDetail.isNullOrUndefined()) {
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detail.setNull();
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} else {
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StructuredSerializeOptions serializeOptions;
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JS::Rooted<JS::Value> valueToClone(aCx, aMarkOptions.mDetail);
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nsContentUtils::StructuredClone(aCx, aGlobal, valueToClone,
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serializeOptions, &detail, aRv);
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if (aRv.Failed()) {
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return nullptr;
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}
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}
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return do_AddRef(new PerformanceMark(aGlobal, aMarkName, startTime, detail));
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}
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PerformanceMark::~PerformanceMark() { mozilla::DropJSObjects(this); }
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NS_IMPL_CYCLE_COLLECTION_CLASS(PerformanceMark)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(PerformanceMark,
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PerformanceEntry)
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tmp->mDetail.setUndefined();
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mozilla::DropJSObjects(tmp);
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(PerformanceMark,
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PerformanceEntry)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PerformanceMark,
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PerformanceEntry)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mDetail)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(PerformanceMark,
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PerformanceEntry)
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JSObject* PerformanceMark::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return PerformanceMark_Binding::Wrap(aCx, this, aGivenProto);
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}
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void PerformanceMark::GetDetail(JSContext* aCx,
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JS::MutableHandle<JS::Value> aRetval) {
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// Return a copy so that this method always returns the value it is set to
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// (i.e. it'll return the same value even if the caller assigns to it). Note
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// that if detail is an object, its contents can be mutated and this is
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// expected.
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aRetval.set(mDetail);
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}
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size_t PerformanceMark::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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