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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 Document; | |
16 class ScrollStateCallback; | |
17 | |
18 class CORE_EXPORT ScrollCustomizationCallbacks : public GarbageCollected<ScrollC ustomizationCallbacks> { | |
19 WTF_MAKE_NONCOPYABLE(ScrollCustomizationCallbacks); | |
20 | |
21 public: | |
22 ScrollCustomizationCallbacks() {} | |
23 void setDistributeScroll(Element*, ScrollStateCallback*); | |
24 ScrollStateCallback* getDistributeScroll(Element*); | |
25 void setApplyScroll(Element*, ScrollStateCallback*); | |
26 ScrollStateCallback* getApplyScroll(Element*); | |
27 | |
28 DEFINE_INLINE_TRACE() | |
29 { | |
30 visitor->trace(m_applyScrollCallbacks); | |
31 visitor->trace(m_distributeScrollCallbacks); | |
32 }; | |
33 | |
34 void removeAllCallbacksForDocument(Document*); | |
haraken
2015/08/27 00:49:40
Can we remove this?
tdresser
2015/08/27 20:48:40
Done.
| |
35 | |
36 #if !ENABLE(OILPAN) | |
37 void removeCallbacksForElement(Element*); | |
38 #endif | |
39 | |
40 private: | |
41 using ScrollStateCallbackList = HeapHashMap<RawPtrWillBeWeakMember<Element>, WeakMember<ScrollStateCallback>>; | |
42 ScrollStateCallbackList m_applyScrollCallbacks; | |
43 ScrollStateCallbackList m_distributeScrollCallbacks; | |
44 }; | |
45 | |
46 } // namespace blink | |
47 | |
48 #endif // ScrollCustomizationCallbacks_h | |
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