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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef PlatformWheelEvent_h | 26 #ifndef PlatformWheelEvent_h |
27 #define PlatformWheelEvent_h | 27 #define PlatformWheelEvent_h |
28 | 28 |
29 #include "platform/PlatformEvent.h" | 29 #include "platform/PlatformEvent.h" |
30 #include "platform/geometry/IntPoint.h" | 30 #include "platform/geometry/IntPoint.h" |
31 | 31 |
32 namespace WebCore { | 32 namespace blink { |
33 | 33 |
34 class FloatPoint; | 34 class FloatPoint; |
35 class FloatSize; | 35 class FloatSize; |
36 | 36 |
37 // Wheel events come in two flavors: | 37 // Wheel events come in two flavors: |
38 // The ScrollByPixelWheelEvent is a fine-grained event that specifies the precis
e number of pixels to scroll. It is sent directly by MacBook touchpads on OS X, | 38 // The ScrollByPixelWheelEvent is a fine-grained event that specifies the precis
e number of pixels to scroll. It is sent directly by MacBook touchpads on OS X, |
39 // and synthesized in other cases where platforms generate line-by-line scrollin
g events. | 39 // and synthesized in other cases where platforms generate line-by-line scrollin
g events. |
40 // The ScrollByPageWheelEvent indicates that the wheel event should scroll an en
tire page. In this case WebCore's built in paging behavior is used to page | 40 // The ScrollByPageWheelEvent indicates that the wheel event should scroll an en
tire page. In this case WebCore's built in paging behavior is used to page |
41 // up and down (you get the same behavior as if the user was clicking in a scrol
lbar track to page up or page down). | 41 // up and down (you get the same behavior as if the user was clicking in a scrol
lbar track to page up or page down). |
42 enum PlatformWheelEventGranularity { | 42 enum PlatformWheelEventGranularity { |
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144 PlatformWheelEventPhase m_phase; | 144 PlatformWheelEventPhase m_phase; |
145 PlatformWheelEventPhase m_momentumPhase; | 145 PlatformWheelEventPhase m_momentumPhase; |
146 unsigned m_scrollCount; | 146 unsigned m_scrollCount; |
147 float m_unacceleratedScrollingDeltaX; | 147 float m_unacceleratedScrollingDeltaX; |
148 float m_unacceleratedScrollingDeltaY; | 148 float m_unacceleratedScrollingDeltaY; |
149 bool m_canRubberbandLeft; | 149 bool m_canRubberbandLeft; |
150 bool m_canRubberbandRight; | 150 bool m_canRubberbandRight; |
151 #endif | 151 #endif |
152 }; | 152 }; |
153 | 153 |
154 } // namespace WebCore | 154 } // namespace blink |
155 | 155 |
156 #endif // PlatformWheelEvent_h | 156 #endif // PlatformWheelEvent_h |
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