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1 // Copyright 2015 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 ScrollCustomizationCallbacks_h | |
6 #define ScrollCustomizationCallbacks_h | |
7 | |
8 #include "core/CoreExport.h" | |
9 #include "core/dom/Element.h" | |
10 #include "platform/heap/Handle.h" | |
11 #include "wtf/HashMap.h" | |
12 | |
13 namespace blink { | |
14 | |
15 class ScrollStateCallback; | |
16 | |
17 class CORE_EXPORT ScrollCustomizationCallbacks : public GarbageCollected<ScrollC ustomizationCallbacks> { | |
18 WTF_MAKE_NONCOPYABLE(ScrollCustomizationCallbacks); | |
19 | |
20 public: | |
21 ScrollCustomizationCallbacks() {} | |
22 void setDistributeScroll(Element*, ScrollStateCallback*); | |
23 ScrollStateCallback* getDistributeScroll(Element*); | |
24 void setApplyScroll(Element*, ScrollStateCallback*); | |
25 ScrollStateCallback* getApplyScroll(Element*); | |
26 | |
27 DEFINE_INLINE_TRACE() | |
28 { | |
29 visitor->trace(m_applyScrollCallbacks); | |
30 visitor->trace(m_distributeScrollCallbacks); | |
31 }; | |
32 | |
33 #if !ENABLE(OILPAN) | |
34 void removeCallbacksForElement(Element*); | |
35 #endif | |
36 | |
37 private: | |
38 using ScrollStateCallbackList = HeapHashMap<RawPtrWillBeWeakMember<Element>, Member<ScrollStateCallback>>; | |
skobes
2015/07/15 19:52:40
Is there a reason this is HeapHashMap and not just
haraken
2015/07/15 23:33:19
This must be a HeapHashMap because this is the obj
| |
39 ScrollStateCallbackList m_applyScrollCallbacks; | |
40 ScrollStateCallbackList m_distributeScrollCallbacks; | |
41 }; | |
42 | |
43 } // namespace blink | |
44 | |
45 #endif // ScrollCustomizationCallbacks_h | |
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