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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 NoBaseWillBeGarbageCollectedFinalized<Wheel
Controller>, public DocumentSupplement, public DOMWindowLifecycleObserver { | |
| 39 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WheelController); | |
| 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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Chromium Code Reviews
Issue 225823007:
Migrate wheel events to EventHandlerRegistry (Closed)
Base URL: svn://svn.chromium.org/blink/trunk