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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 ResizeObserverController_h | |
6 #define ResizeObserverController_h | |
7 | |
8 #include "platform/heap/Handle.h" | |
9 | |
10 namespace blink { | |
11 | |
12 class ResizeObserver; | |
13 | |
14 // ResizeObserverController keeps track of all ResizeObservers | |
15 // in a single Document. | |
16 class ResizeObserverController : public GarbageCollected<ResizeObserverControlle r> { | |
17 | |
18 public: | |
19 | |
20 static const size_t kRenderLoopLimit = 16; | |
eae
2016/07/13 23:39:47
A comment explaining the limit would be helpful.
atotic1
2016/07/15 01:43:17
This limit will go away in the final checkin.
| |
21 | |
22 ResizeObserverController(); | |
23 | |
24 void addObserver(ResizeObserver&); | |
25 bool gatherObservations(); | |
26 void deliverObservations(); | |
27 void clearObservations(); | |
28 | |
29 DECLARE_TRACE(); | |
30 | |
31 private: | |
32 | |
33 using ObserverSet = HeapHashSet<WeakMember<ResizeObserver>>; | |
34 // Active observers | |
35 ObserverSet m_observers; | |
36 }; | |
37 | |
38 } // namespace blink | |
39 | |
40 #endif | |
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