Index: Source/core/timing/PerformanceObserver.h |
diff --git a/Source/core/timing/PerformanceObserver.h b/Source/core/timing/PerformanceObserver.h |
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+++ b/Source/core/timing/PerformanceObserver.h |
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+/* |
+ * Copyright (C) 2015 Google Inc. All rights reserved. |
+ * |
+ * Redistribution and use in source and binary forms, with or without |
+ * modification, are permitted provided that the following conditions are |
+ * met: |
+ * |
+ * * Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * * Redistributions in binary form must reproduce the above |
+ * copyright notice, this list of conditions and the following disclaimer |
+ * in the documentation and/or other materials provided with the |
+ * distribution. |
+ * * Neither the name of Google Inc. nor the names of its |
+ * contributors may be used to endorse or promote products derived from |
+ * this software without specific prior written permission. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
+ */ |
+ |
+#ifndef PerformanceObserver_h |
+#define PerformanceObserver_h |
+ |
+#include "bindings/core/v8/ScriptWrappable.h" |
+#include "platform/heap/Handle.h" |
+#include "wtf/HashSet.h" |
+#include "wtf/PassOwnPtr.h" |
+#include "wtf/PassRefPtr.h" |
+#include "wtf/RefCounted.h" |
+#include "wtf/RefPtr.h" |
+#include "wtf/Vector.h" |
+ |
+namespace blink { |
+ |
+class ExceptionState; |
+class PerformanceBase; |
+class PerformanceObserverCallback; |
+class PerformanceObserver; |
+class PerformanceObserverInit; |
+class PerformanceObserverRegistration; |
+class PerformanceEntry; |
+ |
+using PerformanceObserverSet = HeapHashSet<Member<PerformanceObserver>>; |
+using PerformanceObserverVector = HeapVector<Member<PerformanceObserver>>; |
+using PerformanceEntryVector = HeapVector<Member<PerformanceEntry>>; |
+using PerformanceObserverRegistrationSet = HeapHashSet<WeakMember<PerformanceObserverRegistration>>; |
+ |
+class PerformanceObserver final : public GarbageCollectedFinalized<PerformanceObserver>, public ScriptWrappable { |
+ DEFINE_WRAPPERTYPEINFO(); |
+public: |
+ |
+ static PerformanceObserver* create(PerformanceBase*, PerformanceObserverCallback*); |
+ static void resumeSuspendedObservers(); |
+ static void deliverObservations(); |
+ |
+ ~PerformanceObserver(); |
+ |
+ void observe(const PerformanceObserverInit&, ExceptionState&); |
+ void disconnect(); |
+ void observationStarted(PerformanceObserverRegistration*); |
+ void observationEnded(PerformanceObserverRegistration*); |
+ void enqueuePerformanceEntry(PerformanceEntry*); |
+ |
+ // Eagerly finalized as destructor accesses heap object members. |
+ EAGERLY_FINALIZE(); |
+ DECLARE_TRACE(); |
+ |
+private: |
+ struct ObserverLessThan; |
+ |
+ explicit PerformanceObserver(PerformanceBase*, PerformanceObserverCallback*); |
+ void deliver(); |
+ bool shouldBeSuspended() const; |
+ |
+ Member<PerformanceObserverCallback> m_callback; |
+ WeakMember<PerformanceBase> m_performance; |
+ PerformanceEntryVector m_performanceEntries; |
+ PerformanceObserverRegistrationSet m_registrations; |
+ unsigned m_priority; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // PerformanceObserver_h |