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Side by Side Diff: third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.h

Issue 1548523002: Use Document, rather than document element, for implicit root. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@intersection-observer
Patch Set: Nits, comments, rebaseline Created 4 years, 11 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef ElementIntersectionObserverData_h
6 #define ElementIntersectionObserverData_h
7
8 #include "platform/heap/Handle.h"
9
10 namespace blink {
11
12 class Element;
13 class IntersectionObservation;
14 class IntersectionObserver;
15
16 class ElementIntersectionObserverData : public GarbageCollectedFinalized<Element IntersectionObserverData> {
17 public:
18 DECLARE_TRACE();
19 ElementIntersectionObserverData();
20 ~ElementIntersectionObserverData();
21
22 bool hasIntersectionObserver() const;
23 bool hasIntersectionObservation() const;
24 IntersectionObservation* getObservationFor(IntersectionObserver&);
25 void addObservation(IntersectionObservation&);
26 void removeObservation(IntersectionObserver&);
27 void activateValidIntersectionObservers(Element&);
28 void deactivateAllIntersectionObservers(Element&);
29
30 #if !ENABLE(OILPAN)
31 void dispose();
32 #endif
33
34 WeakPtrWillBeRawPtr<Element> createWeakPtr(Element*);
35
36 private:
37 // IntersectionObservers for which the Element owning this data is root.
38 HeapHashSet<WeakMember<IntersectionObserver>> m_intersectionObservers;
39 // IntersectionObservations for which the Element owning this data is target .
40 HeapHashMap<Member<IntersectionObserver>, Member<IntersectionObservation>> m _intersectionObservations;
41
42 #if !ENABLE(OILPAN)
43 OwnPtr<WeakPtrFactory<Element>> m_weakPointerFactory;
44 #endif
45 };
46
47 } // namespace blink
48
49 #endif // ElementIntersectionObserverData_h
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