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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 <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <memory> | 10 #include <memory> |
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22 #if defined(OS_WIN) | 22 #if defined(OS_WIN) |
23 #include <windows.h> | 23 #include <windows.h> |
24 #endif | 24 #endif |
25 | 25 |
26 namespace gfx { | 26 namespace gfx { |
27 class Point; | 27 class Point; |
28 class Vector2d; | 28 class Vector2d; |
29 } | 29 } |
30 | 30 |
31 namespace base { | 31 namespace base { |
32 class TimeDelta; | 32 class TimeTicks; |
33 } | 33 } |
34 | 34 |
35 // Common functions to be used for all platforms except Android. | 35 // Common functions to be used for all platforms except Android. |
36 namespace ui { | 36 namespace ui { |
37 | 37 |
38 class Event; | 38 class Event; |
39 class MouseEvent; | 39 class MouseEvent; |
40 enum class DomCode; | 40 enum class DomCode; |
41 | 41 |
42 // Returns a ui::Event wrapping a native event. Ownership of the returned value | 42 // Returns a ui::Event wrapping a native event. Ownership of the returned value |
43 // is transferred to the caller. | 43 // is transferred to the caller. |
44 EVENTS_EXPORT std::unique_ptr<Event> EventFromNative( | 44 EVENTS_EXPORT std::unique_ptr<Event> EventFromNative( |
45 const base::NativeEvent& native_event); | 45 const base::NativeEvent& native_event); |
46 | 46 |
47 // Get the EventType from a native event. | 47 // Get the EventType from a native event. |
48 EVENTS_EXPORT EventType EventTypeFromNative( | 48 EVENTS_EXPORT EventType EventTypeFromNative( |
49 const base::NativeEvent& native_event); | 49 const base::NativeEvent& native_event); |
50 | 50 |
51 // Get the EventFlags from a native event. | 51 // Get the EventFlags from a native event. |
52 EVENTS_EXPORT int EventFlagsFromNative(const base::NativeEvent& native_event); | 52 EVENTS_EXPORT int EventFlagsFromNative(const base::NativeEvent& native_event); |
53 | 53 |
54 // Get the timestamp from a native event. | 54 // Get the timestamp from a native event. |
55 // Note: This is not a pure function meaning that multiple applications on the | 55 // Note: This is not a pure function meaning that multiple applications on the |
56 // same native event may return different values. | 56 // same native event may return different values. |
57 EVENTS_EXPORT base::TimeDelta EventTimeFromNative( | 57 EVENTS_EXPORT base::TimeTicks EventTimeFromNative( |
58 const base::NativeEvent& native_event); | 58 const base::NativeEvent& native_event); |
59 | 59 |
60 // Create a timestamp based on the current time. | 60 // Create a timestamp based on the current time. |
61 EVENTS_EXPORT base::TimeDelta EventTimeForNow(); | 61 // TODO(majidvp): Get rid of this in favor of call to TimeTicks::Now(). |
| 62 // crbug.com/453559 |
| 63 EVENTS_EXPORT base::TimeTicks EventTimeForNow(); |
62 | 64 |
63 // Get the location from a native event. The coordinate system of the resultant | 65 // Get the location from a native event. The coordinate system of the resultant |
64 // |Point| has the origin at top-left of the "root window". The nature of | 66 // |Point| has the origin at top-left of the "root window". The nature of |
65 // this "root window" and how it maps to platform-specific drawing surfaces is | 67 // this "root window" and how it maps to platform-specific drawing surfaces is |
66 // defined in ui/aura/root_window.* and ui/aura/window_tree_host*. | 68 // defined in ui/aura/root_window.* and ui/aura/window_tree_host*. |
67 // TODO(tdresser): Return gfx::PointF here. See crbug.com/337827. | 69 // TODO(tdresser): Return gfx::PointF here. See crbug.com/337827. |
68 EVENTS_EXPORT gfx::Point EventLocationFromNative( | 70 EVENTS_EXPORT gfx::Point EventLocationFromNative( |
69 const base::NativeEvent& native_event); | 71 const base::NativeEvent& native_event); |
70 | 72 |
71 // Gets the location in native system coordinate space. | 73 // Gets the location in native system coordinate space. |
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171 // Update the native X11 event to correspond to the new button flags. | 173 // Update the native X11 event to correspond to the new button flags. |
172 EVENTS_EXPORT void UpdateX11EventForChangedButtonFlags(MouseEvent* event); | 174 EVENTS_EXPORT void UpdateX11EventForChangedButtonFlags(MouseEvent* event); |
173 #endif | 175 #endif |
174 | 176 |
175 // Registers a custom event type. | 177 // Registers a custom event type. |
176 EVENTS_EXPORT int RegisterCustomEventType(); | 178 EVENTS_EXPORT int RegisterCustomEventType(); |
177 | 179 |
178 } // namespace ui | 180 } // namespace ui |
179 | 181 |
180 #endif // UI_EVENTS_EVENT_UTILS_H_ | 182 #endif // UI_EVENTS_EVENT_UTILS_H_ |
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