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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 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 MouseWheelEventManager_h | 5 #ifndef MouseWheelEventManager_h |
6 #define MouseWheelEventManager_h | 6 #define MouseWheelEventManager_h |
7 | 7 |
8 #include "platform/heap/Handle.h" | 8 #include "platform/heap/Handle.h" |
9 #include "platform/heap/Visitor.h" | 9 #include "platform/heap/Visitor.h" |
10 #include "public/platform/WebInputEventResult.h" | 10 #include "public/platform/WebInputEventResult.h" |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 class Document; | |
15 class LocalFrame; | 14 class LocalFrame; |
16 class LocalFrameView; | |
17 class Node; | |
18 class ScrollManager; | 15 class ScrollManager; |
19 class WebMouseWheelEvent; | 16 class WebMouseWheelEvent; |
20 | 17 |
21 class MouseWheelEventManager final | 18 class MouseWheelEventManager final |
22 : public GarbageCollectedFinalized<MouseWheelEventManager> { | 19 : public GarbageCollectedFinalized<MouseWheelEventManager> { |
23 WTF_MAKE_NONCOPYABLE(MouseWheelEventManager); | 20 WTF_MAKE_NONCOPYABLE(MouseWheelEventManager); |
24 | 21 |
25 public: | 22 public: |
26 explicit MouseWheelEventManager(LocalFrame&, ScrollManager&); | 23 explicit MouseWheelEventManager(LocalFrame&, ScrollManager&); |
27 DECLARE_TRACE(); | 24 DECLARE_TRACE(); |
28 | 25 |
29 void Clear(); | |
30 | |
31 WebInputEventResult HandleWheelEvent(const WebMouseWheelEvent&); | 26 WebInputEventResult HandleWheelEvent(const WebMouseWheelEvent&); |
32 | 27 |
33 private: | 28 private: |
34 Node* FindTargetNode(const WebMouseWheelEvent&, | |
35 const Document*, | |
36 const LocalFrameView*); | |
37 | |
38 const Member<LocalFrame> frame_; | 29 const Member<LocalFrame> frame_; |
39 Member<Node> wheel_target_; | |
40 Member<ScrollManager> scroll_manager_; | 30 Member<ScrollManager> scroll_manager_; |
41 }; | 31 }; |
42 | 32 |
43 } // namespace blink | 33 } // namespace blink |
44 | 34 |
45 #endif // MouseWheelEventManager_h | 35 #endif // MouseWheelEventManager_h |
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