OLD | NEW |
1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 // MSVC++ requires this to be set before any other includes to get M_PI. | |
6 #define _USE_MATH_DEFINES | |
7 | |
8 #include "content/browser/renderer_host/input/motion_event_web.h" | 5 #include "content/browser/renderer_host/input/motion_event_web.h" |
9 | 6 |
10 #include <cmath> | |
11 | |
12 #include "base/logging.h" | 7 #include "base/logging.h" |
13 #include "content/common/input/web_touch_event_traits.h" | 8 #include "content/common/input/web_touch_event_traits.h" |
14 | 9 |
15 using blink::WebInputEvent; | 10 using blink::WebInputEvent; |
16 using blink::WebTouchEvent; | 11 using blink::WebTouchEvent; |
17 using blink::WebTouchPoint; | 12 using blink::WebTouchPoint; |
18 | 13 |
19 namespace content { | 14 namespace content { |
20 namespace { | 15 namespace { |
21 | 16 |
(...skipping 78 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
100 return event_.touches[pointer_index].screenPosition.x; | 95 return event_.touches[pointer_index].screenPosition.x; |
101 } | 96 } |
102 | 97 |
103 float MotionEventWeb::GetRawY(size_t pointer_index) const { | 98 float MotionEventWeb::GetRawY(size_t pointer_index) const { |
104 DCHECK_LT(pointer_index, GetPointerCount()); | 99 DCHECK_LT(pointer_index, GetPointerCount()); |
105 return event_.touches[pointer_index].screenPosition.y; | 100 return event_.touches[pointer_index].screenPosition.y; |
106 } | 101 } |
107 | 102 |
108 float MotionEventWeb::GetTouchMajor(size_t pointer_index) const { | 103 float MotionEventWeb::GetTouchMajor(size_t pointer_index) const { |
109 DCHECK_LT(pointer_index, GetPointerCount()); | 104 DCHECK_LT(pointer_index, GetPointerCount()); |
| 105 // TODO(jdduke): We should be a bit more careful about axes here. |
110 return 2.f * std::max(event_.touches[pointer_index].radiusX, | 106 return 2.f * std::max(event_.touches[pointer_index].radiusX, |
111 event_.touches[pointer_index].radiusY); | 107 event_.touches[pointer_index].radiusY); |
112 } | 108 } |
113 | 109 |
114 float MotionEventWeb::GetTouchMinor(size_t pointer_index) const { | |
115 DCHECK_LT(pointer_index, GetPointerCount()); | |
116 return 2.f * std::min(event_.touches[pointer_index].radiusX, | |
117 event_.touches[pointer_index].radiusY); | |
118 } | |
119 | |
120 float MotionEventWeb::GetOrientation(size_t pointer_index) const { | |
121 DCHECK_LT(pointer_index, GetPointerCount()); | |
122 | |
123 float rotation_angle_rad = event_.touches[pointer_index].rotationAngle | |
124 * M_PI / 180.f; | |
125 DCHECK(0 <= rotation_angle_rad && rotation_angle_rad <= M_PI_2) | |
126 << "Unexpected touch rotation angle"; | |
127 | |
128 if (event_.touches[pointer_index].radiusX | |
129 > event_.touches[pointer_index].radiusY) { | |
130 // The case radiusX == radiusY is omitted from here on purpose: for circles, | |
131 // we want to pass the angle (which could be any value in such cases but | |
132 // always seem to be set to zero) unchanged. | |
133 rotation_angle_rad -= (float) M_PI_2; | |
134 } | |
135 | |
136 return rotation_angle_rad; | |
137 } | |
138 | |
139 float MotionEventWeb::GetPressure(size_t pointer_index) const { | 110 float MotionEventWeb::GetPressure(size_t pointer_index) const { |
140 return 0.f; | 111 return 0.f; |
141 } | 112 } |
142 | 113 |
143 base::TimeTicks MotionEventWeb::GetEventTime() const { | 114 base::TimeTicks MotionEventWeb::GetEventTime() const { |
144 return base::TimeTicks() + | 115 return base::TimeTicks() + |
145 base::TimeDelta::FromMicroseconds(event_.timeStampSeconds * | 116 base::TimeDelta::FromMicroseconds(event_.timeStampSeconds * |
146 base::Time::kMicrosecondsPerSecond); | 117 base::Time::kMicrosecondsPerSecond); |
147 } | 118 } |
148 | 119 |
(...skipping 17 matching lines...) Expand all Loading... |
166 WebTouchEvent cancel_event(event_); | 137 WebTouchEvent cancel_event(event_); |
167 WebTouchEventTraits::ResetTypeAndTouchStates( | 138 WebTouchEventTraits::ResetTypeAndTouchStates( |
168 blink::WebInputEvent::TouchCancel, | 139 blink::WebInputEvent::TouchCancel, |
169 // TODO(rbyers): Shouldn't we use a fresh timestamp? | 140 // TODO(rbyers): Shouldn't we use a fresh timestamp? |
170 event_.timeStampSeconds, | 141 event_.timeStampSeconds, |
171 &cancel_event); | 142 &cancel_event); |
172 return scoped_ptr<MotionEvent>(new MotionEventWeb(cancel_event)); | 143 return scoped_ptr<MotionEvent>(new MotionEventWeb(cancel_event)); |
173 } | 144 } |
174 | 145 |
175 } // namespace content | 146 } // namespace content |
OLD | NEW |