Source/core/dom/WheelController.h - Issue 206603002: Add EventHandlerRegistry

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Side by Side Diff: Source/core/dom/WheelController.h

Issue 206603002: Add EventHandlerRegistry (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Rebase harder. Created 6 years, 8 months ago

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1 /*

2 * Copyright (C) 2013 Google, Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions

6 * are met:

7 * * Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.

9 * * Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the

11 * documentation and/or other materials provided with the distribution.

12 *

13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY

14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

24 */

25

26 #ifndef WheelController_h

27 #define WheelController_h

28

29 #include "core/dom/DocumentSupplementable.h"

30 #include "core/events/Event.h"

31 #include "core/frame/DOMWindowLifecycleObserver.h"

32

33

34 namespace WebCore {

35

36 class DOMWindow;

37

38 class WheelController FINAL : public DocumentSupplement, public DOMWindowLifecyc leObserver {

39

40 public:

41 virtual ~WheelController();

42

43 static const char* supplementName();

44 static WheelController* from(Document&);

45

46 unsigned wheelEventHandlerCount() { return m_wheelEventHandlerCount; }

47

48 void didAddWheelEventHandler(Document&);

49 void didRemoveWheelEventHandler(Document&);

50

51 // Inherited from DOMWindowLifecycleObserver

52 virtual void didAddEventListener(DOMWindow*, const AtomicString&) OVERRIDE;

53 virtual void didRemoveEventListener(DOMWindow*, const AtomicString&) OVERRID E;

54

55 private:

56 explicit WheelController(Document&);

57

58 unsigned m_wheelEventHandlerCount;

59 };

60

61 } // namespace WebCore

62

63 #endif // WheelController_h

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