third_party/WebKit/Source/core/dom/ElementVisibilityObserver.h - Issue 2144073002: Using WeakMember<Element> in ElementVisibilityObserver

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

Issue 2144073002: Using WeakMember<Element> in ElementVisibilityObserver (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 5 months ago

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1 // Copyright 2016 The Chromium Authors. All rights reserved.	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	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #ifndef ElementVisibilityObserver_h	5 #ifndef ElementVisibilityObserver_h

6 #define ElementVisibilityObserver_h	6 #define ElementVisibilityObserver_h

7	7

8 #include "core/dom/IntersectionObserver.h"	8 #include "core/dom/IntersectionObserver.h"

9 #include "platform/heap/Heap.h"	9 #include "platform/heap/Heap.h"

10 #include "platform/heap/Member.h"	10 #include "platform/heap/Member.h"

(...skipping 22 matching lines...) Expand all Loading...
33 void start();	33 void start();

34 void stop();	34 void stop();

35	35

36 DECLARE_VIRTUAL_TRACE();	36 DECLARE_VIRTUAL_TRACE();

37	37

38 private:	38 private:

39 class ElementVisibilityCallback;	39 class ElementVisibilityCallback;

40	40

41 void onVisibilityChanged(const HeapVector<Member<IntersectionObserverEntry>> &);	41 void onVisibilityChanged(const HeapVector<Member<IntersectionObserverEntry>> &);

42	42

43 Member<Element> m_element;	43 WeakMember<Element> m_element;

44 Member<IntersectionObserver> m_intersectionObserver;	44 Member<IntersectionObserver> m_intersectionObserver;

45 std::unique_ptr<VisibilityCallback> m_callback;	45 std::unique_ptr<VisibilityCallback> m_callback;

46 };	46 };

47	47

48 } // namespace blink	48 } // namespace blink

49	49

50 #endif // ElementVisibilityObserver_h	50 #endif // ElementVisibilityObserver_h

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