зеркало из https://github.com/mozilla/gecko-dev.git
163 строки
4.8 KiB
C++
163 строки
4.8 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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#ifndef mozilla_dom_Performance_h
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#define mozilla_dom_Performance_h
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#include "mozilla/Attributes.h"
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#include "mozilla/DOMEventTargetHelper.h"
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#include "nsCOMPtr.h"
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#include "nsDOMNavigationTiming.h"
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class nsITimedChannel;
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class nsIHttpChannel;
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class PerformanceEntry;
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class PerformanceNavigation;
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class PerformanceObserver;
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class PerformanceTiming;
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namespace workers {
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class WorkerPrivate;
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}
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// Base class for main-thread and worker Performance API
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class Performance : public DOMEventTargetHelper
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(Performance,
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DOMEventTargetHelper)
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static bool IsEnabled(JSContext* aCx, JSObject* aGlobal);
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static bool IsObserverEnabled(JSContext* aCx, JSObject* aGlobal);
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static already_AddRefed<Performance>
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CreateForMainThread(nsPIDOMWindowInner* aWindow,
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nsDOMNavigationTiming* aDOMTiming,
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nsITimedChannel* aChannel,
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Performance* aParentPerformance);
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static already_AddRefed<Performance>
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CreateForWorker(workers::WorkerPrivate* aWorkerPrivate);
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JSObject* WrapObject(JSContext *cx,
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JS::Handle<JSObject*> aGivenProto) override;
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void GetEntries(nsTArray<RefPtr<PerformanceEntry>>& aRetval);
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void GetEntriesByType(const nsAString& aEntryType,
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nsTArray<RefPtr<PerformanceEntry>>& aRetval);
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void GetEntriesByName(const nsAString& aName,
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const Optional<nsAString>& aEntryType,
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nsTArray<RefPtr<PerformanceEntry>>& aRetval);
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virtual void AddEntry(nsIHttpChannel* channel,
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nsITimedChannel* timedChannel) = 0;
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void ClearResourceTimings();
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virtual DOMHighResTimeStamp Now() const = 0;
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void Mark(const nsAString& aName, ErrorResult& aRv);
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void ClearMarks(const Optional<nsAString>& aName);
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void Measure(const nsAString& aName,
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const Optional<nsAString>& aStartMark,
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const Optional<nsAString>& aEndMark,
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ErrorResult& aRv);
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void ClearMeasures(const Optional<nsAString>& aName);
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void SetResourceTimingBufferSize(uint64_t aMaxSize);
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void AddObserver(PerformanceObserver* aObserver);
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void RemoveObserver(PerformanceObserver* aObserver);
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void NotifyObservers();
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void CancelNotificationObservers();
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virtual PerformanceTiming* Timing() = 0;
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virtual PerformanceNavigation* Navigation() = 0;
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IMPL_EVENT_HANDLER(resourcetimingbufferfull)
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virtual void GetMozMemory(JSContext *aCx,
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JS::MutableHandle<JSObject*> aObj) = 0;
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virtual nsDOMNavigationTiming* GetDOMTiming() const = 0;
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virtual nsITimedChannel* GetChannel() const = 0;
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virtual Performance* GetParentPerformance() const = 0;
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protected:
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Performance();
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explicit Performance(nsPIDOMWindowInner* aWindow);
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virtual ~Performance();
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virtual void InsertUserEntry(PerformanceEntry* aEntry);
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void InsertResourceEntry(PerformanceEntry* aEntry);
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void ClearUserEntries(const Optional<nsAString>& aEntryName,
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const nsAString& aEntryType);
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DOMHighResTimeStamp ResolveTimestampFromName(const nsAString& aName,
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ErrorResult& aRv);
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virtual nsISupports* GetAsISupports() = 0;
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virtual void DispatchBufferFullEvent() = 0;
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virtual TimeStamp CreationTimeStamp() const = 0;
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virtual DOMHighResTimeStamp CreationTime() const = 0;
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virtual bool IsPerformanceTimingAttribute(const nsAString& aName) = 0;
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virtual DOMHighResTimeStamp
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GetPerformanceTimingFromString(const nsAString& aTimingName) = 0;
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bool IsResourceEntryLimitReached() const
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{
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return mResourceEntries.Length() >= mResourceTimingBufferSize;
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}
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void LogEntry(PerformanceEntry* aEntry, const nsACString& aOwner) const;
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void TimingNotification(PerformanceEntry* aEntry, const nsACString& aOwner,
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uint64_t epoch);
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void RunNotificationObserversTask();
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void QueueEntry(PerformanceEntry* aEntry);
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DOMHighResTimeStamp RoundTime(double aTime) const;
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nsTObserverArray<PerformanceObserver*> mObservers;
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private:
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nsTArray<RefPtr<PerformanceEntry>> mUserEntries;
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nsTArray<RefPtr<PerformanceEntry>> mResourceEntries;
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uint64_t mResourceTimingBufferSize;
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static const uint64_t kDefaultResourceTimingBufferSize = 150;
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bool mPendingNotificationObserversTask;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_Performance_h
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