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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 ResizeObserver_h | |
6 #define ResizeObserver_h | |
7 | |
8 #include "bindings/core/v8/ScriptWrappable.h" | |
9 #include "core/dom/Element.h" | |
szager1
2016/06/02 20:52:41
Move this to .cpp file.
atotic1
2016/06/08 18:59:22
Done.
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10 #include "core/observer/ResizeObserverEntry.h" | |
szager1
2016/06/02 20:52:41
ditto
atotic1
2016/06/08 18:59:22
Done. What was I thinking here?
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11 #include "platform/heap/Handle.h" | |
12 | |
13 namespace blink { | |
14 | |
15 class Document; | |
16 class Element; | |
17 class ResizeObserverCallback; | |
18 class ResizeObserverEntry; | |
19 class ResizeObservation; | |
20 | |
21 // ResizeObserver represents ResizeObserver javascript api: | |
22 // https://github.com/WICG/ResizeObserver/ | |
23 class ResizeObserver final : public GarbageCollectedFinalized<ResizeObserver>, p ublic ScriptWrappable { | |
szager1
2016/06/02 20:52:41
No Finalized, no destructors; see previous comment
atotic1
2016/06/08 18:59:22
This one has to be finalized because HeapLinkedHas
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24 DEFINE_WRAPPERTYPEINFO(); | |
25 | |
26 public: | |
27 static ResizeObserver* create(Document&, ResizeObserverCallback*); | |
28 | |
29 virtual ~ResizeObserver() {}; | |
30 | |
31 // API methods | |
32 void observe(Element*); | |
33 void unobserve(Element*); | |
34 void disconnect(); | |
35 | |
36 DECLARE_TRACE(); | |
37 | |
38 // returns true if observations were found. | |
39 bool gatherObservations(); | |
40 | |
41 void deliverObservations(); | |
42 | |
43 private: | |
44 | |
45 using ObservationList = HeapLinkedHashSet<WeakMember<ResizeObservation>>; | |
46 | |
47 explicit ResizeObserver(ResizeObserverCallback*); | |
48 | |
49 Member<ResizeObserverCallback> m_callback; | |
50 | |
51 // List of elements we are observing | |
52 ObservationList m_observations; | |
53 | |
54 // List of elements that have changes | |
55 HeapVector<Member<ResizeObservation>> m_activeObservations; | |
56 | |
57 }; | |
58 | |
59 | |
60 } // namespace blink | |
61 | |
62 #endif // ResizeObserver_h | |
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