Index: third_party/WebKit/Source/core/dom/IntersectionObserverController.h |
diff --git a/third_party/WebKit/Source/core/dom/IntersectionObserverController.h b/third_party/WebKit/Source/core/dom/IntersectionObserverController.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..b2970599c5059679cc0a8133ab93cf007c14578d |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/dom/IntersectionObserverController.h |
@@ -0,0 +1,45 @@ |
+// 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 IntersectionObserverController_h |
+#define IntersectionObserverController_h |
+ |
+#include "core/dom/Element.h" |
+#include "core/dom/IntersectionObserver.h" |
+#include "platform/Timer.h" |
+#include "platform/heap/Handle.h" |
+#include "wtf/HashSet.h" |
+#include "wtf/RefCounted.h" |
+ |
+namespace blink { |
+ |
+class Document; |
+template<typename T> class Timer; |
+ |
+class IntersectionObserverController : public GarbageCollectedFinalized<IntersectionObserverController> { |
+public: |
+ IntersectionObserverController(); |
esprehn
2015/12/17 01:40:29
also destructor, and put it in the .cpp file
szager1
2015/12/17 20:27:26
Done.
|
+ |
+ void scheduleIntersectionObserverForDelivery(IntersectionObserver&); |
+ void resumeSuspendedIntersectionObservers(); |
+ void deliverIntersectionObservations(Timer<IntersectionObserverController>*); |
+ void computeTrackedIntersectionObservations(); |
+ void addTrackedObserver(IntersectionObserver&); |
+ void removeTrackedObserversForRoot(Element&); |
+ void dispose(); |
+ |
+ DECLARE_TRACE(); |
+ |
+private: |
+ Timer<IntersectionObserverController> m_timer; |
+ // IntersectionObservers for which this is the tracking document. |
+ HeapHashSet<WeakMember<IntersectionObserver>> m_trackedIntersectionObservers; |
+ // IntersectionObservers for which this is the execution context of the callback. |
+ HeapHashSet<Member<IntersectionObserver>> m_activeIntersectionObservers; |
+ HeapHashSet<Member<IntersectionObserver>> m_suspendedIntersectionObservers; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // IntersectionObservationRegistry_h |