Index: Source/core/timing/PerformanceObserverRegistration.cpp |
diff --git a/Source/core/timing/PerformanceObserverRegistration.cpp b/Source/core/timing/PerformanceObserverRegistration.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c8209b5c1a7df0d1df0272dc425cfa6f11305a92 |
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+++ b/Source/core/timing/PerformanceObserverRegistration.cpp |
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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. |
+ */ |
+ |
+#include "config.h" |
+ |
+#include "core/timing/PerformanceObserverRegistration.h" |
+ |
+#include "core/timing/PerformanceBase.h" |
+ |
+namespace blink { |
+ |
+PerformanceObserverRegistration* PerformanceObserverRegistration::create(PerformanceObserver& observer, PerformanceBase* performance, const HashSet<AtomicString>& typeFilter) |
+{ |
+ return new PerformanceObserverRegistration(observer, performance, typeFilter); |
+} |
+ |
+PerformanceObserverRegistration::PerformanceObserverRegistration(PerformanceObserver& observer, PerformanceBase* performance, const HashSet<AtomicString>& typeFilter) |
+ : m_observer(observer) |
+ , m_performance(performance) |
+ , m_typeFilter(typeFilter) |
+ , m_referenceCount(0) |
+{ |
+ m_performance->registerPerformanceObserver(this); |
+ m_observer->observationStarted(this); |
+} |
+ |
+PerformanceObserverRegistration::~PerformanceObserverRegistration() |
+{ |
+} |
+ |
+void PerformanceObserverRegistration::dispose() |
+{ |
+ if (!--m_referenceCount) { |
esprehn
2015/07/18 22:24:16
don't manually reference count, you want to use We
|
+ m_observer->observationEnded(this); |
+ m_observer.clear(); |
+ } |
+} |
+ |
+void PerformanceObserverRegistration::resetObservation(const HashSet<AtomicString>& typeFilter) |
+{ |
+ ++m_referenceCount; |
+ m_performance->unregisterPerformanceObserver(this); |
+ m_typeFilter = typeFilter; |
+ m_performance->registerPerformanceObserver(this); |
+ --m_referenceCount; |
+} |
+ |
+void PerformanceObserverRegistration::unregister() |
+{ |
+ ASSERT(m_performance); |
+ m_performance->unregisterPerformanceObserver(this); |
+ // The above line will cause this object to be deleted, so don't do any more in this function. |
+} |
+ |
+bool PerformanceObserverRegistration::shouldReceiveEntryFrom(const AtomicString& typeName) const |
+{ |
+ return m_typeFilter.contains(typeName); |
+} |
+ |
+DEFINE_TRACE(PerformanceObserverRegistration) |
+{ |
+ visitor->trace(m_observer); |
+ visitor->trace(m_performance); |
+} |
+ |
+} // namespace blink |