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Side by Side Diff: ui/events/gesture_detection/motion_event.h

Issue 1417803002: Pass MotionEvent tilt angles to Blink on Android. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Flattened nested ifs, fixed a special case Created 5 years, 1 month ago
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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 #ifndef UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_ 5 #ifndef UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_
6 #define UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_ 6 #define UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_
7 7
8 #include "base/memory/scoped_ptr.h" 8 #include "base/memory/scoped_ptr.h"
9 #include "base/time/time.h" 9 #include "base/time/time.h"
10 #include "ui/events/gesture_detection/gesture_detection_export.h" 10 #include "ui/events/gesture_detection/gesture_detection_export.h"
(...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after
58 virtual size_t GetPointerCount() const = 0; 58 virtual size_t GetPointerCount() const = 0;
59 virtual int GetPointerId(size_t pointer_index) const = 0; 59 virtual int GetPointerId(size_t pointer_index) const = 0;
60 virtual float GetX(size_t pointer_index) const = 0; 60 virtual float GetX(size_t pointer_index) const = 0;
61 virtual float GetY(size_t pointer_index) const = 0; 61 virtual float GetY(size_t pointer_index) const = 0;
62 virtual float GetRawX(size_t pointer_index) const = 0; 62 virtual float GetRawX(size_t pointer_index) const = 0;
63 virtual float GetRawY(size_t pointer_index) const = 0; 63 virtual float GetRawY(size_t pointer_index) const = 0;
64 virtual float GetTouchMajor(size_t pointer_index) const = 0; 64 virtual float GetTouchMajor(size_t pointer_index) const = 0;
65 virtual float GetTouchMinor(size_t pointer_index) const = 0; 65 virtual float GetTouchMinor(size_t pointer_index) const = 0;
66 virtual float GetOrientation(size_t pointer_index) const = 0; 66 virtual float GetOrientation(size_t pointer_index) const = 0;
67 virtual float GetPressure(size_t pointer_index) const = 0; 67 virtual float GetPressure(size_t pointer_index) const = 0;
68 virtual float GetTilt(size_t pointer_index) const = 0;
68 virtual ToolType GetToolType(size_t pointer_index) const = 0; 69 virtual ToolType GetToolType(size_t pointer_index) const = 0;
69 virtual int GetButtonState() const = 0; 70 virtual int GetButtonState() const = 0;
70 virtual int GetFlags() const = 0; 71 virtual int GetFlags() const = 0;
71 virtual base::TimeTicks GetEventTime() const = 0; 72 virtual base::TimeTicks GetEventTime() const = 0;
72 73
73 // Optional historical data, default implementation provides an empty history. 74 // Optional historical data, default implementation provides an empty history.
74 virtual size_t GetHistorySize() const; 75 virtual size_t GetHistorySize() const;
75 virtual base::TimeTicks GetHistoricalEventTime(size_t historical_index) const; 76 virtual base::TimeTicks GetHistoricalEventTime(size_t historical_index) const;
76 virtual float GetHistoricalTouchMajor(size_t pointer_index, 77 virtual float GetHistoricalTouchMajor(size_t pointer_index,
77 size_t historical_index) const; 78 size_t historical_index) const;
(...skipping 18 matching lines...) Expand all
96 float GetTouchMinor() const { return GetTouchMinor(0); } 97 float GetTouchMinor() const { return GetTouchMinor(0); }
97 98
98 // Returns the orientation in radians. The meaning is overloaded: 99 // Returns the orientation in radians. The meaning is overloaded:
99 // * For a touch screen or pad, it's the orientation of the major axis 100 // * For a touch screen or pad, it's the orientation of the major axis
100 // clockwise from vertical. The return value lies in [-PI/2, PI/2]. 101 // clockwise from vertical. The return value lies in [-PI/2, PI/2].
101 // * For a stylus, it indicates the direction in which the stylus is pointing. 102 // * For a stylus, it indicates the direction in which the stylus is pointing.
102 // The return value lies in [-PI, PI]. 103 // The return value lies in [-PI, PI].
103 float GetOrientation() const { return GetOrientation(0); } 104 float GetOrientation() const { return GetOrientation(0); }
104 105
105 float GetPressure() const { return GetPressure(0); } 106 float GetPressure() const { return GetPressure(0); }
107 float GetTilt() const { return GetTilt(0); }
106 ToolType GetToolType() const { return GetToolType(0); } 108 ToolType GetToolType() const { return GetToolType(0); }
107 109
108 // O(N) search of pointers (use sparingly!). Returns -1 if |id| nonexistent. 110 // O(N) search of pointers (use sparingly!). Returns -1 if |id| nonexistent.
109 int FindPointerIndexOfId(int id) const; 111 int FindPointerIndexOfId(int id) const;
110 112
111 // Note that these methods perform shallow copies of the originating events. 113 // Note that these methods perform shallow copies of the originating events.
112 // They guarantee only that the returned type will reflect the same 114 // They guarantee only that the returned type will reflect the same
113 // data exposed by the MotionEvent interface; no guarantees are made that the 115 // data exposed by the MotionEvent interface; no guarantees are made that the
114 // underlying implementation is identical to the source implementation. 116 // underlying implementation is identical to the source implementation.
115 scoped_ptr<MotionEvent> Clone() const; 117 scoped_ptr<MotionEvent> Clone() const;
116 scoped_ptr<MotionEvent> Cancel() const; 118 scoped_ptr<MotionEvent> Cancel() const;
117 }; 119 };
118 120
119 } // namespace ui 121 } // namespace ui
120 122
121 #endif // UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_ 123 #endif // UI_EVENTS_GESTURE_DETECTION_MOTION_EVENT_H_
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