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| 1 /* | |
| 2 * Copyright (C) 2004, 2005, 2006, 2009 Apple 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 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 PlatformWheelEvent_h | |
| 27 #define PlatformWheelEvent_h | |
| 28 | |
| 29 #include "platform/PlatformEvent.h" | |
| 30 #include "platform/PlatformMouseEvent.h" | |
| 31 #include "platform/geometry/IntPoint.h" | |
| 32 | |
| 33 namespace blink { | |
| 34 | |
| 35 enum PlatformWheelEventGranularity { | |
| 36 // Indicates that the wheel event should scroll an entire page. In this case | |
| 37 // WebCore's built in paging behavior is used to page up and down (you get the | |
| 38 // same behavior as if the user was clicking in a scrollbar track to page up | |
| 39 // or page down). | |
| 40 ScrollByPageWheelEvent, | |
| 41 // A fine-grained event that specifies the precise number of pixels to scroll. | |
| 42 // It is sent directly by MacBook touchpads on OS X, and synthesized in other | |
| 43 // cases where platforms generate line-by-line scrolling events. | |
| 44 ScrollByPixelWheelEvent, | |
| 45 }; | |
| 46 | |
| 47 #if OS(MACOSX) | |
| 48 enum PlatformWheelEventPhase { | |
| 49 PlatformWheelEventPhaseNone = 0, | |
| 50 PlatformWheelEventPhaseBegan = 1 << 0, | |
| 51 PlatformWheelEventPhaseStationary = 1 << 1, | |
| 52 PlatformWheelEventPhaseChanged = 1 << 2, | |
| 53 PlatformWheelEventPhaseEnded = 1 << 3, | |
| 54 PlatformWheelEventPhaseCancelled = 1 << 4, | |
| 55 PlatformWheelEventPhaseMayBegin = 1 << 5, | |
| 56 }; | |
| 57 #endif | |
| 58 | |
| 59 class PlatformWheelEvent : public PlatformMouseEvent { | |
| 60 public: | |
| 61 PlatformWheelEvent() | |
| 62 : PlatformMouseEvent(PlatformEvent::Wheel), | |
| 63 m_deltaX(0), | |
| 64 m_deltaY(0), | |
| 65 m_wheelTicksX(0), | |
| 66 m_wheelTicksY(0), | |
| 67 m_granularity(ScrollByPixelWheelEvent), | |
| 68 m_hasPreciseScrollingDeltas(false), | |
| 69 m_resendingPluginId(-1), | |
| 70 m_railsMode(RailsModeFree), | |
| 71 m_dispatchType(Blocking) | |
| 72 #if OS(MACOSX) | |
| 73 , | |
| 74 m_phase(PlatformWheelEventPhaseNone), | |
| 75 m_momentumPhase(PlatformWheelEventPhaseNone) | |
| 76 #endif | |
| 77 { | |
| 78 } | |
| 79 | |
| 80 float deltaX() const { return m_deltaX; } | |
| 81 float deltaY() const { return m_deltaY; } | |
| 82 | |
| 83 float wheelTicksX() const { return m_wheelTicksX; } | |
| 84 float wheelTicksY() const { return m_wheelTicksY; } | |
| 85 | |
| 86 PlatformWheelEventGranularity granularity() const { return m_granularity; } | |
| 87 | |
| 88 bool hasPreciseScrollingDeltas() const { return m_hasPreciseScrollingDeltas; } | |
| 89 void setHasPreciseScrollingDeltas(bool b) { m_hasPreciseScrollingDeltas = b; } | |
| 90 int resendingPluginId() const { return m_resendingPluginId; } | |
| 91 RailsMode getRailsMode() const { return m_railsMode; } | |
| 92 DispatchType dispatchType() const { return m_dispatchType; } | |
| 93 bool cancelable() const { return m_dispatchType == PlatformEvent::Blocking; } | |
| 94 #if OS(MACOSX) | |
| 95 PlatformWheelEventPhase phase() const { return m_phase; } | |
| 96 PlatformWheelEventPhase momentumPhase() const { return m_momentumPhase; } | |
| 97 #endif | |
| 98 | |
| 99 protected: | |
| 100 float m_deltaX; | |
| 101 float m_deltaY; | |
| 102 float m_wheelTicksX; | |
| 103 float m_wheelTicksY; | |
| 104 PlatformWheelEventGranularity m_granularity; | |
| 105 bool m_hasPreciseScrollingDeltas; | |
| 106 int m_resendingPluginId; | |
| 107 RailsMode m_railsMode; | |
| 108 DispatchType m_dispatchType; | |
| 109 #if OS(MACOSX) | |
| 110 PlatformWheelEventPhase m_phase; | |
| 111 PlatformWheelEventPhase m_momentumPhase; | |
| 112 #endif | |
| 113 }; | |
| 114 | |
| 115 } // namespace blink | |
| 116 | |
| 117 #endif // PlatformWheelEvent_h | |
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Chromium Code Reviews
Issue 2586133003:
Remove PlatformWheelEvent and use WebMouseWheelEvent instead (Closed)
