#pragma once
#include "ContextDestructionObserver.h"
#include "DOMHighResTimeStamp.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include "GenericTaskQueue.h"
#include "ReducedResolutionSeconds.h"
#include <wtf/ListHashSet.h>
#include <wtf/Variant.h>
namespace JSC {
class JSGlobalObject;
}
namespace WebCore {
class LoadTiming;
class PerformanceUserTiming;
class PerformanceEntry;
class PerformanceMark;
class PerformanceMeasure;
class PerformanceNavigation;
class PerformanceObserver;
class PerformancePaintTiming;
class PerformanceTiming;
class ResourceResponse;
class ResourceTiming;
class ScriptExecutionContext;
struct PerformanceMarkOptions;
struct PerformanceMeasureOptions;
class Performance final : public RefCounted<Performance>, public ContextDestructionObserver, public EventTargetWithInlineData {
WTF_MAKE_ISO_ALLOCATED(Performance);
public:
static Ref<Performance> create(ScriptExecutionContext* context, MonotonicTime timeOrigin) { return adoptRef(*new Performance(context, timeOrigin)); }
~Performance();
DOMHighResTimeStamp now() const;
ReducedResolutionSeconds nowInReducedResolutionSeconds() const;
PerformanceNavigation* navigation();
PerformanceTiming* timing();
Vector<RefPtr<PerformanceEntry>> getEntries() const;
Vector<RefPtr<PerformanceEntry>> getEntriesByType(const String& entryType) const;
Vector<RefPtr<PerformanceEntry>> getEntriesByName(const String& name, const String& entryType) const;
void appendBufferedEntriesByType(const String& entryType, Vector<RefPtr<PerformanceEntry>>&) const;
void clearResourceTimings();
void setResourceTimingBufferSize(unsigned);
ExceptionOr<Ref<PerformanceMark>> mark(JSC::JSGlobalObject&, const String& markName, Optional<PerformanceMarkOptions>&&);
void clearMarks(const String& markName);
using StartOrMeasureOptions = Variant<String, PerformanceMeasureOptions>;
ExceptionOr<Ref<PerformanceMeasure>> measure(JSC::JSGlobalObject&, const String& measureName, Optional<StartOrMeasureOptions>&&, const String& endMark);
void clearMeasures(const String& measureName);
void addResourceTiming(ResourceTiming&&);
void reportFirstContentfulPaint();
void removeAllObservers();
void registerPerformanceObserver(PerformanceObserver&);
void unregisterPerformanceObserver(PerformanceObserver&);
static Seconds reduceTimeResolution(Seconds);
DOMHighResTimeStamp relativeTimeFromTimeOriginInReducedResolution(MonotonicTime) const;
ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
using RefCounted::ref;
using RefCounted::deref;
private:
Performance(ScriptExecutionContext*, MonotonicTime timeOrigin);
void contextDestroyed() override;
EventTargetInterface eventTargetInterface() const final { return PerformanceEventTargetInterfaceType; }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
bool isResourceTimingBufferFull() const;
void resourceTimingBufferFullTimerFired();
void queueEntry(PerformanceEntry&);
mutable RefPtr<PerformanceNavigation> m_navigation;
mutable RefPtr<PerformanceTiming> m_timing;
Vector<RefPtr<PerformanceEntry>> m_resourceTimingBuffer;
unsigned m_resourceTimingBufferSize { 150 };
Timer m_resourceTimingBufferFullTimer;
Vector<RefPtr<PerformanceEntry>> m_backupResourceTimingBuffer;
bool m_resourceTimingBufferFullFlag { false };
bool m_waitingForBackupBufferToBeProcessed { false };
MonotonicTime m_timeOrigin;
RefPtr<PerformancePaintTiming> m_firstContentfulPaint;
std::unique_ptr<PerformanceUserTiming> m_userTiming;
GenericTaskQueue<ScriptExecutionContext> m_performanceTimelineTaskQueue;
ListHashSet<RefPtr<PerformanceObserver>> m_observers;
};
}