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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 UI_EVENTS_EVENT_UTILS_H_ | 5 #ifndef UI_EVENTS_EVENT_UTILS_H_ |
6 #define UI_EVENTS_EVENT_UTILS_H_ | 6 #define UI_EVENTS_EVENT_UTILS_H_ |
7 | 7 |
8 #include "base/event_types.h" | 8 #include "base/event_types.h" |
9 #include "ui/events/event_constants.h" | 9 #include "ui/events/event_constants.h" |
10 #include "ui/events/keycodes/keyboard_codes.h" | 10 #include "ui/events/keycodes/keyboard_codes.h" |
| 11 #include "ui/gfx/display.h" |
11 #include "ui/gfx/native_widget_types.h" | 12 #include "ui/gfx/native_widget_types.h" |
12 #include "ui/events/events_export.h" | 13 #include "ui/events/events_export.h" |
13 | 14 |
14 #if defined(OS_WIN) | 15 #if defined(OS_WIN) |
15 #include <windows.h> | 16 #include <windows.h> |
16 #endif | 17 #endif |
17 | 18 |
18 namespace gfx { | 19 namespace gfx { |
19 class Point; | 20 class Point; |
20 class Vector2d; | 21 class Vector2d; |
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124 | 125 |
125 // Enable/disable natural scrolling for touchpads. | 126 // Enable/disable natural scrolling for touchpads. |
126 EVENTS_EXPORT void SetNaturalScroll(bool enabled); | 127 EVENTS_EXPORT void SetNaturalScroll(bool enabled); |
127 | 128 |
128 // In natural scrolling enabled for touchpads? | 129 // In natural scrolling enabled for touchpads? |
129 EVENTS_EXPORT bool IsNaturalScrollEnabled(); | 130 EVENTS_EXPORT bool IsNaturalScrollEnabled(); |
130 | 131 |
131 // Returns whether natural scrolling should be used for touchpad. | 132 // Returns whether natural scrolling should be used for touchpad. |
132 EVENTS_EXPORT bool ShouldDefaultToNaturalScroll(); | 133 EVENTS_EXPORT bool ShouldDefaultToNaturalScroll(); |
133 | 134 |
| 135 // Returns whether or not the internal display produces touch events. |
| 136 EVENTS_EXPORT gfx::Display::TouchSupport GetInternalDisplayTouchSupport(); |
| 137 |
134 // Was this event generated by a touchpad device? | 138 // Was this event generated by a touchpad device? |
135 // The caller is responsible for ensuring that this is a mouse/touchpad event | 139 // The caller is responsible for ensuring that this is a mouse/touchpad event |
136 // before calling this function. | 140 // before calling this function. |
137 EVENTS_EXPORT bool IsTouchpadEvent(const base::NativeEvent& event); | 141 EVENTS_EXPORT bool IsTouchpadEvent(const base::NativeEvent& event); |
138 | 142 |
139 // Returns true if event is noop. | 143 // Returns true if event is noop. |
140 EVENTS_EXPORT bool IsNoopEvent(const base::NativeEvent& event); | 144 EVENTS_EXPORT bool IsNoopEvent(const base::NativeEvent& event); |
141 | 145 |
142 // Creates and returns no-op event. | 146 // Creates and returns no-op event. |
143 EVENTS_EXPORT base::NativeEvent CreateNoopEvent(); | 147 EVENTS_EXPORT base::NativeEvent CreateNoopEvent(); |
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155 EVENTS_EXPORT uint16 GetScanCodeFromLParam(LPARAM lParam); | 159 EVENTS_EXPORT uint16 GetScanCodeFromLParam(LPARAM lParam); |
156 EVENTS_EXPORT LPARAM GetLParamFromScanCode(uint16 scan_code); | 160 EVENTS_EXPORT LPARAM GetLParamFromScanCode(uint16 scan_code); |
157 #endif | 161 #endif |
158 | 162 |
159 // Registers a custom event type. | 163 // Registers a custom event type. |
160 EVENTS_EXPORT int RegisterCustomEventType(); | 164 EVENTS_EXPORT int RegisterCustomEventType(); |
161 | 165 |
162 } // namespace ui | 166 } // namespace ui |
163 | 167 |
164 #endif // UI_EVENTS_EVENT_UTILS_H_ | 168 #endif // UI_EVENTS_EVENT_UTILS_H_ |
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