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1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2015 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 WebPointerProperties_h | 5 #ifndef WebPointerProperties_h |
6 #define WebPointerProperties_h | 6 #define WebPointerProperties_h |
7 | 7 |
8 #include <cstdint> | 8 #include <cstdint> |
9 #include <limits> | 9 #include <limits> |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
| 13 using PointerId = int32_t; |
| 14 |
13 // This class encapsulates the properties that are common between mouse and | 15 // This class encapsulates the properties that are common between mouse and |
14 // pointer events and touch points as we transition towards the unified pointer | 16 // pointer events and touch points as we transition towards the unified pointer |
15 // event model. | 17 // event model. |
16 // TODO(e_hakkinen): Replace WebTouchEvent with WebPointerEvent, remove | 18 // TODO(e_hakkinen): Replace WebTouchEvent with WebPointerEvent, remove |
17 // WebTouchEvent and WebTouchPoint and merge this into WebPointerEvent. | 19 // WebTouchEvent and WebTouchPoint and merge this into WebPointerEvent. |
18 class WebPointerProperties { | 20 class WebPointerProperties { |
19 public: | 21 public: |
20 enum class Button { | 22 enum class Button { |
21 kNoButton = -1, | 23 kNoButton = -1, |
22 kLeft, | 24 kLeft, |
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39 | 41 |
40 enum class PointerType { | 42 enum class PointerType { |
41 kUnknown, | 43 kUnknown, |
42 kMouse, | 44 kMouse, |
43 kPen, | 45 kPen, |
44 kEraser, | 46 kEraser, |
45 kTouch, | 47 kTouch, |
46 kLastEntry = kTouch // Must be the last entry in the list | 48 kLastEntry = kTouch // Must be the last entry in the list |
47 }; | 49 }; |
48 | 50 |
49 WebPointerProperties() | 51 explicit WebPointerProperties(PointerId id_param) |
50 : id(0), | 52 : id(id_param), |
51 force(std::numeric_limits<float>::quiet_NaN()), | 53 force(std::numeric_limits<float>::quiet_NaN()), |
52 tilt_x(0), | 54 tilt_x(0), |
53 tilt_y(0), | 55 tilt_y(0), |
54 tangential_pressure(0.0f), | 56 tangential_pressure(0.0f), |
55 twist(0), | 57 twist(0), |
56 button(Button::kNoButton), | 58 button(Button::kNoButton), |
57 pointer_type(PointerType::kUnknown), | 59 pointer_type(PointerType::kUnknown), |
58 movement_x(0), | 60 movement_x(0), |
59 movement_y(0) {} | 61 movement_y(0) {} |
60 | 62 |
61 WebPointerProperties(Button button_param, PointerType pointer_type_param) | 63 WebPointerProperties(PointerId id_param, |
62 : id(0), | 64 Button button_param, |
| 65 PointerType pointer_type_param) |
| 66 : id(id_param), |
63 force(std::numeric_limits<float>::quiet_NaN()), | 67 force(std::numeric_limits<float>::quiet_NaN()), |
64 tilt_x(0), | 68 tilt_x(0), |
65 tilt_y(0), | 69 tilt_y(0), |
66 tangential_pressure(0.0f), | 70 tangential_pressure(0.0f), |
67 twist(0), | 71 twist(0), |
68 button(button_param), | 72 button(button_param), |
69 pointer_type(pointer_type_param), | 73 pointer_type(pointer_type_param), |
70 movement_x(0), | 74 movement_x(0), |
71 movement_y(0) {} | 75 movement_y(0) {} |
72 | 76 |
73 int id; | 77 PointerId id; |
74 | 78 |
75 // The valid range is [0,1], with NaN meaning pressure is not supported by | 79 // The valid range is [0,1], with NaN meaning pressure is not supported by |
76 // the input device. | 80 // the input device. |
77 float force; | 81 float force; |
78 | 82 |
79 // Tilt of a pen stylus from surface normal as plane angles in degrees, | 83 // Tilt of a pen stylus from surface normal as plane angles in degrees, |
80 // Values lie in [-90,90]. A positive tiltX is to the right and a positive | 84 // Values lie in [-90,90]. A positive tiltX is to the right and a positive |
81 // tiltY is towards the user. | 85 // tiltY is towards the user. |
82 int tilt_x; | 86 int tilt_x; |
83 int tilt_y; | 87 int tilt_y; |
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101 | 105 |
102 PointerType pointer_type; | 106 PointerType pointer_type; |
103 | 107 |
104 int movement_x; | 108 int movement_x; |
105 int movement_y; | 109 int movement_y; |
106 }; | 110 }; |
107 | 111 |
108 } // namespace blink | 112 } // namespace blink |
109 | 113 |
110 #endif | 114 #endif |
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