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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 EventHandlerRegistry_h | 5 #ifndef EventHandlerRegistry_h |
6 #define EventHandlerRegistry_h | 6 #define EventHandlerRegistry_h |
7 | 7 |
8 #include "core/frame/FrameHost.h" | 8 #include "core/frame/FrameHost.h" |
9 #include "wtf/HashCountedSet.h" | 9 #include "wtf/HashCountedSet.h" |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 class Document; | 13 class Document; |
14 class EventTarget; | 14 class EventTarget; |
15 | 15 |
16 typedef HashCountedSet<EventTarget*> EventTargetSet; | 16 typedef HashCountedSet<EventTarget*> EventTargetSet; |
17 | 17 |
18 // Registry for keeping track of event handlers. Note that only handlers on | 18 // Registry for keeping track of event handlers. Note that only handlers on |
19 // documents that can be rendered or can receive input (i.e., are attached to a | 19 // documents that can be rendered or can receive input (i.e., are attached to a |
20 // FrameHost) are registered here. | 20 // FrameHost) are registered here. |
21 class EventHandlerRegistry FINAL : public NoBaseWillBeGarbageCollectedFinalized<
EventHandlerRegistry> { | 21 class EventHandlerRegistry final : public NoBaseWillBeGarbageCollectedFinalized<
EventHandlerRegistry> { |
22 public: | 22 public: |
23 explicit EventHandlerRegistry(FrameHost&); | 23 explicit EventHandlerRegistry(FrameHost&); |
24 virtual ~EventHandlerRegistry(); | 24 virtual ~EventHandlerRegistry(); |
25 | 25 |
26 // Supported event handler classes. Note that each one may correspond to | 26 // Supported event handler classes. Note that each one may correspond to |
27 // multiple event types. | 27 // multiple event types. |
28 enum EventHandlerClass { | 28 enum EventHandlerClass { |
29 ScrollEvent, | 29 ScrollEvent, |
30 WheelEvent, | 30 WheelEvent, |
31 TouchEvent, | 31 TouchEvent, |
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97 | 97 |
98 void checkConsistency() const; | 98 void checkConsistency() const; |
99 | 99 |
100 FrameHost& m_frameHost; | 100 FrameHost& m_frameHost; |
101 EventTargetSet m_targets[EventHandlerClassCount]; | 101 EventTargetSet m_targets[EventHandlerClassCount]; |
102 }; | 102 }; |
103 | 103 |
104 } // namespace blink | 104 } // namespace blink |
105 | 105 |
106 #endif // EventHandlerRegistry_h | 106 #endif // EventHandlerRegistry_h |
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