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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 ResizeObserver_h | 5 #ifndef ResizeObserver_h |
6 #define ResizeObserver_h | 6 #define ResizeObserver_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptWrappable.h" | 8 #include "bindings/core/v8/ScriptWrappable.h" |
9 #include "platform/heap/Handle.h" | 9 #include "platform/heap/Handle.h" |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 class Document; | 13 class Document; |
14 class Element; | 14 class Element; |
15 class ResizeObserverCallback; | 15 class ResizeObserverCallback; |
16 class ResizeObserverEntry; | 16 class ResizeObserverController; |
| 17 class ResizeObservation; |
17 | 18 |
18 // ResizeObserver represents ResizeObserver javascript api: | 19 // ResizeObserver represents ResizeObserver javascript api: |
19 // https://github.com/WICG/ResizeObserver/ | 20 // https://github.com/WICG/ResizeObserver/ |
20 class ResizeObserver final : public GarbageCollectedFinalized<ResizeObserver>, p
ublic ScriptWrappable { | 21 class ResizeObserver final : public GarbageCollectedFinalized<ResizeObserver>, p
ublic ScriptWrappable { |
21 DEFINE_WRAPPERTYPEINFO(); | 22 DEFINE_WRAPPERTYPEINFO(); |
22 public: | 23 public: |
23 | 24 |
24 static ResizeObserver* create(Document&, ResizeObserverCallback*); | 25 static ResizeObserver* create(Document&, ResizeObserverCallback*); |
25 | 26 |
26 virtual ~ResizeObserver() {}; | 27 virtual ~ResizeObserver() {}; |
27 | 28 |
28 | |
29 // API methods | 29 // API methods |
30 void observe(Element*); | 30 void observe(Element*); |
31 void unobserve(Element*); | 31 void unobserve(Element*); |
32 void disconnect(); | 32 void disconnect(); |
33 | 33 |
34 DECLARE_TRACE(); | 34 DECLARE_TRACE(); |
35 | 35 |
36 private: | 36 private: |
37 | 37 |
| 38 using ObservationList = HeapLinkedHashSet<WeakMember<ResizeObservation>>; |
| 39 |
38 explicit ResizeObserver(ResizeObserverCallback*, Document&); | 40 explicit ResizeObserver(ResizeObserverCallback*, Document&); |
39 | 41 |
| 42 Member<ResizeObserverCallback> m_callback; |
| 43 |
| 44 // List of elements we are observing |
| 45 ObservationList m_observations; |
| 46 |
| 47 WeakMember<ResizeObserverController> m_controller; |
40 }; | 48 }; |
41 | 49 |
42 | 50 |
43 } // namespace blink | 51 } // namespace blink |
44 | 52 |
45 #endif // ResizeObserver_h | 53 #endif // ResizeObserver_h |
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