Index: third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.h |
diff --git a/third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.h b/third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..34ca694da40a9786949ad284909701fcc642adef |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.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 ElementIntersectionObserverData_h |
+#define ElementIntersectionObserverData_h |
+ |
+#include "core/dom/IntersectionObservation.h" |
esprehn
2015/12/17 01:40:28
you can forward declare IntersectionObservation if
szager1
2015/12/17 20:27:25
Yep, it works, done.
|
+#include "core/dom/IntersectionObserver.h" |
esprehn
2015/12/17 01:40:28
ditto
szager1
2015/12/17 20:27:25
Done.
|
+ |
+namespace blink { |
+ |
+class ElementIntersectionObserverData : public GarbageCollectedFinalized<ElementIntersectionObserverData> { |
+public: |
+ DECLARE_TRACE(); |
+ ElementIntersectionObserverData() { } |
esprehn
2015/12/17 01:40:28
can we put both the constructor and the destructor
szager1
2015/12/17 20:27:25
Done.
|
+ |
+ bool hasIntersectionObserver() const; |
+ bool hasIntersectionObservation() const; |
+ bool hasObservationFor(IntersectionObserver&) const; |
+ void addObservation(IntersectionObservation&); |
+ void removeObservation(IntersectionObserver&); |
+ void activateValidIntersectionObservers(Element&); |
+ void deactivateAllIntersectionObservers(Element&); |
+ |
+#if !ENABLE(OILPAN) |
+ void dispose(); |
+#endif |
+ |
+ WeakPtr<Element> createWeakPtr(Element*); |
+ |
+private: |
+ // IntersectionObservers for which the Element owning this data is root. |
+ HeapHashSet<WeakMember<IntersectionObserver>> m_intersectionObservers; |
+ // IntersectionObservations for which the Element owning this data is target. |
+ HeapHashMap<Member<IntersectionObserver>, Member<IntersectionObservation>> m_intersectionObservations; |
+ |
+#if !ENABLE(OILPAN) |
+ OwnPtrWillBeMember<WeakPtrFactory<Element>> m_weakPointerFactory; |
+#endif |
+}; |
+ |
+} // namespace blink { |
+ |
+#endif // ElementIntersectionObserverData_h |