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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PerformanceObserver_h
#define PerformanceObserver_h
#include "bindings/core/v8/TraceWrapperMember.h"
#include "core/CoreExport.h"
#include "core/timing/PerformanceEntry.h"
#include "platform/heap/Handle.h"
#include "wtf/Vector.h"
namespace blink {
class ExecutionContext;
class ExceptionState;
class PerformanceBase;
class PerformanceObserver;
class PerformanceObserverCallback;
class PerformanceObserverInit;
using PerformanceEntryVector = HeapVector<Member<PerformanceEntry>>;
class CORE_EXPORT PerformanceObserver final
: public GarbageCollectedFinalized<PerformanceObserver>,
public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
friend class PerformanceBase;
friend class PerformanceBaseTest;
friend class PerformanceObserverTest;
public:
static PerformanceObserver* create(ExecutionContext*,
PerformanceBase*,
PerformanceObserverCallback*);
static void resumeSuspendedObservers();
void observe(const PerformanceObserverInit&, ExceptionState&);
void disconnect();
void enqueuePerformanceEntry(PerformanceEntry&);
PerformanceEntryTypeMask filterOptions() const { return m_filterOptions; }
DECLARE_TRACE();
DECLARE_TRACE_WRAPPERS();
private:
PerformanceObserver(ExecutionContext*,
PerformanceBase*,
PerformanceObserverCallback*);
void deliver();
bool shouldBeSuspended() const;
Member<ExecutionContext> m_executionContext;
TraceWrapperMember<PerformanceObserverCallback> m_callback;
WeakMember<PerformanceBase> m_performance;
PerformanceEntryVector m_performanceEntries;
PerformanceEntryTypeMask m_filterOptions;
bool m_isRegistered;
};
} // namespace blink
#endif // PerformanceObserver_h
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