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
|
/*
* Copyright (C) 2014 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.
*/
package com.google.android.apps.common.testing.ui.espresso.base;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.base.Throwables.propagate;
import com.google.android.apps.common.testing.ui.espresso.InjectEventSecurityException;
import android.os.Build;
import android.util.Log;
import android.view.InputDevice;
import android.view.InputEvent;
import android.view.KeyEvent;
import android.view.MotionEvent;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* An {@link EventInjectionStrategy} that uses the input manager to inject Events.
* This strategy supports API level 16 and above.
*/
final class InputManagerEventInjectionStrategy implements EventInjectionStrategy {
private static final String TAG = InputManagerEventInjectionStrategy.class.getSimpleName();
// Used in reflection
private boolean initComplete;
private Method injectInputEventMethod;
private Method setSourceMotionMethod;
private Object instanceInputManagerObject;
private int motionEventMode;
private int keyEventMode;
InputManagerEventInjectionStrategy() {
checkState(Build.VERSION.SDK_INT >= 16, "Unsupported API level.");
}
void initialize() {
if (initComplete) {
return;
}
try {
Log.d(TAG, "Creating injection strategy with input manager.");
// Get the InputputManager class object and initialize if necessary.
Class<?> inputManagerClassObject = Class.forName("android.hardware.input.InputManager");
Method getInstanceMethod = inputManagerClassObject.getDeclaredMethod("getInstance");
getInstanceMethod.setAccessible(true);
instanceInputManagerObject = getInstanceMethod.invoke(inputManagerClassObject);
injectInputEventMethod = instanceInputManagerObject.getClass()
.getDeclaredMethod("injectInputEvent", InputEvent.class, Integer.TYPE);
injectInputEventMethod.setAccessible(true);
// Setting event mode to INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH to ensure
// that we've dispatched the event and any side effects its had on the view hierarchy
// have occurred.
Field motionEventModeField =
inputManagerClassObject.getField("INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH");
motionEventModeField.setAccessible(true);
motionEventMode = motionEventModeField.getInt(inputManagerClassObject);
Field keyEventModeField =
inputManagerClassObject.getField("INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH");
keyEventModeField.setAccessible(true);
keyEventMode = keyEventModeField.getInt(inputManagerClassObject);
setSourceMotionMethod = MotionEvent.class.getDeclaredMethod("setSource", Integer.TYPE);
InputEvent.class.getDeclaredMethod("getSequenceNumber");
initComplete = true;
} catch (ClassNotFoundException e) {
propagate(e);
} catch (IllegalAccessException e) {
propagate(e);
} catch (IllegalArgumentException e) {
propagate(e);
} catch (InvocationTargetException e) {
propagate(e);
} catch (NoSuchMethodException e) {
propagate(e);
} catch (SecurityException e) {
propagate(e);
} catch (NoSuchFieldException e) {
propagate(e);
}
}
@Override
public boolean injectKeyEvent(KeyEvent keyEvent) throws InjectEventSecurityException {
try {
return (Boolean) injectInputEventMethod.invoke(instanceInputManagerObject,
keyEvent, keyEventMode);
} catch (IllegalAccessException e) {
propagate(e);
} catch (IllegalArgumentException e) {
propagate(e);
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
if (cause instanceof SecurityException) {
throw new InjectEventSecurityException(cause);
}
propagate(e);
} catch (SecurityException e) {
throw new InjectEventSecurityException(e);
}
return false;
}
@Override
public boolean injectMotionEvent(MotionEvent motionEvent) throws InjectEventSecurityException {
try {
// Need to set the event source to touch screen, otherwise the input can be ignored even
// though injecting it would be successful.
// TODO(user): proper handling of events from a trackball (SOURCE_TRACKBALL) and joystick.
if ((motionEvent.getSource() & InputDevice.SOURCE_CLASS_POINTER) == 0
&& !isFromTouchpadInGlassDevice(motionEvent)) {
// Need to do runtime invocation of setSource because it was not added until 2.3_r1.
setSourceMotionMethod.invoke(motionEvent, InputDevice.SOURCE_TOUCHSCREEN);
}
return (Boolean) injectInputEventMethod.invoke(instanceInputManagerObject,
motionEvent, motionEventMode);
} catch (IllegalAccessException e) {
propagate(e);
} catch (IllegalArgumentException e) {
propagate(e);
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
if (cause instanceof SecurityException) {
throw new InjectEventSecurityException(cause);
}
propagate(e);
} catch (SecurityException e) {
throw new InjectEventSecurityException(e);
}
return false;
}
// We'd like to inject non-pointer events sourced from touchpad in Glass.
private static boolean isFromTouchpadInGlassDevice(MotionEvent motionEvent) {
return (Build.DEVICE.contains("glass")
|| Build.DEVICE.contains("Glass") || Build.DEVICE.contains("wingman"))
&& ((motionEvent.getSource() & InputDevice.SOURCE_TOUCHPAD) != 0);
}
}
|
