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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _UI_INPUT_LISTENER_H
#define _UI_INPUT_LISTENER_H
#include <input/Input.h>
#include <utils/RefBase.h>
#include <utils/Vector.h>
namespace android {
class InputListenerInterface;
/* Superclass of all input event argument objects */
struct NotifyArgs {
virtual ~NotifyArgs() { }
virtual void notify(const sp<InputListenerInterface>& listener) const = 0;
};
/* Describes a configuration change event. */
struct NotifyConfigurationChangedArgs : public NotifyArgs {
nsecs_t eventTime;
inline NotifyConfigurationChangedArgs() { }
explicit NotifyConfigurationChangedArgs(nsecs_t eventTime);
NotifyConfigurationChangedArgs(const NotifyConfigurationChangedArgs& other);
virtual ~NotifyConfigurationChangedArgs() { }
virtual void notify(const sp<InputListenerInterface>& listener) const;
};
/* Describes a key event. */
struct NotifyKeyArgs : public NotifyArgs {
nsecs_t eventTime;
int32_t deviceId;
uint32_t source;
uint32_t policyFlags;
int32_t action;
int32_t flags;
int32_t keyCode;
int32_t scanCode;
int32_t metaState;
nsecs_t downTime;
inline NotifyKeyArgs() { }
NotifyKeyArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, uint32_t policyFlags,
int32_t action, int32_t flags, int32_t keyCode, int32_t scanCode,
int32_t metaState, nsecs_t downTime);
NotifyKeyArgs(const NotifyKeyArgs& other);
virtual ~NotifyKeyArgs() { }
virtual void notify(const sp<InputListenerInterface>& listener) const;
};
/* Describes a motion event. */
struct NotifyMotionArgs : public NotifyArgs {
nsecs_t eventTime;
int32_t deviceId;
uint32_t source;
uint32_t policyFlags;
int32_t action;
int32_t actionButton;
int32_t flags;
int32_t metaState;
int32_t buttonState;
int32_t edgeFlags;
int32_t displayId;
uint32_t pointerCount;
PointerProperties pointerProperties[MAX_POINTERS];
PointerCoords pointerCoords[MAX_POINTERS];
float xPrecision;
float yPrecision;
nsecs_t downTime;
inline NotifyMotionArgs() { }
NotifyMotionArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, uint32_t policyFlags,
int32_t action, int32_t actionButton, int32_t flags,
int32_t metaState, int32_t buttonState,
int32_t edgeFlags, int32_t displayId, uint32_t pointerCount,
const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
float xPrecision, float yPrecision, nsecs_t downTime);
NotifyMotionArgs(const NotifyMotionArgs& other);
virtual ~NotifyMotionArgs() { }
virtual void notify(const sp<InputListenerInterface>& listener) const;
};
/* Describes a switch event. */
struct NotifySwitchArgs : public NotifyArgs {
nsecs_t eventTime;
uint32_t policyFlags;
uint32_t switchValues;
uint32_t switchMask;
inline NotifySwitchArgs() { }
NotifySwitchArgs(nsecs_t eventTime, uint32_t policyFlags,
uint32_t switchValues, uint32_t switchMask);
NotifySwitchArgs(const NotifySwitchArgs& other);
virtual ~NotifySwitchArgs() { }
virtual void notify(const sp<InputListenerInterface>& listener) const;
};
/* Describes a device reset event, such as when a device is added,
* reconfigured, or removed. */
struct NotifyDeviceResetArgs : public NotifyArgs {
nsecs_t eventTime;
int32_t deviceId;
inline NotifyDeviceResetArgs() { }
NotifyDeviceResetArgs(nsecs_t eventTime, int32_t deviceId);
NotifyDeviceResetArgs(const NotifyDeviceResetArgs& other);
virtual ~NotifyDeviceResetArgs() { }
virtual void notify(const sp<InputListenerInterface>& listener) const;
};
/*
* The interface used by the InputReader to notify the InputListener about input events.
*/
class InputListenerInterface : public virtual RefBase {
protected:
InputListenerInterface() { }
virtual ~InputListenerInterface() { }
public:
virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) = 0;
virtual void notifyKey(const NotifyKeyArgs* args) = 0;
virtual void notifyMotion(const NotifyMotionArgs* args) = 0;
virtual void notifySwitch(const NotifySwitchArgs* args) = 0;
virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args) = 0;
};
/*
* An implementation of the listener interface that queues up and defers dispatch
* of decoded events until flushed.
*/
class QueuedInputListener : public InputListenerInterface {
protected:
virtual ~QueuedInputListener();
public:
explicit QueuedInputListener(const sp<InputListenerInterface>& innerListener);
virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args);
virtual void notifyKey(const NotifyKeyArgs* args);
virtual void notifyMotion(const NotifyMotionArgs* args);
virtual void notifySwitch(const NotifySwitchArgs* args);
virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args);
void flush();
private:
sp<InputListenerInterface> mInnerListener;
Vector<NotifyArgs*> mArgsQueue;
};
} // namespace android
#endif // _UI_INPUT_LISTENER_H
|
