1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_GENERIC_H_
#define UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_GENERIC_H_
#include "base/basictypes.h"
#include "base/containers/stack_container.h"
#include "base/memory/scoped_vector.h"
#include "ui/events/gesture_detection/gesture_detection_export.h"
#include "ui/events/gesture_detection/motion_event.h"
namespace ui {
struct GESTURE_DETECTION_EXPORT PointerProperties {
PointerProperties();
PointerProperties(float x, float y, float touch_major);
PointerProperties(const MotionEvent& event, size_t pointer_index);
int id;
MotionEvent::ToolType tool_type;
float x;
float y;
float raw_x;
float raw_y;
float pressure;
float touch_major;
float touch_minor;
float orientation;
// source_device_id is only used on Aura.
int source_device_id;
};
// A generic MotionEvent implementation.
class GESTURE_DETECTION_EXPORT MotionEventGeneric : public MotionEvent {
public:
MotionEventGeneric(Action action,
base::TimeTicks event_time,
const PointerProperties& pointer);
MotionEventGeneric(const MotionEventGeneric& other);
~MotionEventGeneric() override;
// MotionEvent implementation.
int GetId() const override;
Action GetAction() const override;
int GetActionIndex() const override;
size_t GetPointerCount() const override;
int GetPointerId(size_t pointer_index) const override;
float GetX(size_t pointer_index) const override;
float GetY(size_t pointer_index) const override;
float GetRawX(size_t pointer_index) const override;
float GetRawY(size_t pointer_index) const override;
float GetTouchMajor(size_t pointer_index) const override;
float GetTouchMinor(size_t pointer_index) const override;
float GetOrientation(size_t pointer_index) const override;
float GetPressure(size_t pointer_index) const override;
ToolType GetToolType(size_t pointer_index) const override;
int GetButtonState() const override;
int GetFlags() const override;
base::TimeTicks GetEventTime() const override;
size_t GetHistorySize() const override;
base::TimeTicks GetHistoricalEventTime(
size_t historical_index) const override;
float GetHistoricalTouchMajor(size_t pointer_index,
size_t historical_index) const override;
float GetHistoricalX(size_t pointer_index,
size_t historical_index) const override;
float GetHistoricalY(size_t pointer_index,
size_t historical_index) const override;
void PushPointer(const PointerProperties& pointer);
// Add an event to the history. |this| and |event| must have the same pointer
// count and must both have an action of ACTION_MOVE.
void PushHistoricalEvent(scoped_ptr<MotionEvent> event);
void set_action(Action action) { action_ = action; }
void set_event_time(base::TimeTicks event_time) { event_time_ = event_time; }
void set_id(int id) { id_ = id; }
void set_action_index(int action_index) { action_index_ = action_index; }
void set_button_state(int button_state) { button_state_ = button_state; }
void set_flags(int flags) { flags_ = flags; }
static scoped_ptr<MotionEventGeneric> CloneEvent(const MotionEvent& event);
static scoped_ptr<MotionEventGeneric> CancelEvent(const MotionEvent& event);
protected:
MotionEventGeneric();
MotionEventGeneric(const MotionEvent& event, bool with_history);
MotionEventGeneric& operator=(const MotionEventGeneric& other);
void PopPointer();
PointerProperties& pointer(size_t index) { return pointers_[index]; }
const PointerProperties& pointer(size_t index) const {
return pointers_[index];
}
private:
enum { kTypicalMaxPointerCount = 5 };
Action action_;
base::TimeTicks event_time_;
int id_;
int action_index_;
int button_state_;
int flags_;
base::StackVector<PointerProperties, kTypicalMaxPointerCount> pointers_;
ScopedVector<MotionEvent> historical_events_;
};
} // namespace ui
#endif // UI_EVENTS_GESTURE_DETECTION_UI_MOTION_EVENT_GENERIC_H_
|
