blob: c6b91ae64e2b5fcb7c16b7281c3126e5fc8b3907 (
plain)
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
|
/*
* Copyright 2017 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 foo.bar.testback;
import static foo.bar.testback.AccessibilityNodeInfoUtils.findParent;
import android.text.TextUtils;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.Predicate;
/**
* Helper class to manage accessibility focus
*/
public class AccessibilityFocusManager {
private static final AccessibilityAction[] IGNORED_ACTIONS_FOR_A11Y_FOCUS = {
AccessibilityAction.ACTION_ACCESSIBILITY_FOCUS,
AccessibilityAction.ACTION_CLEAR_ACCESSIBILITY_FOCUS,
AccessibilityAction.ACTION_SELECT,
AccessibilityAction.ACTION_CLEAR_SELECTION,
AccessibilityAction.ACTION_SHOW_ON_SCREEN
};
public static final boolean canTakeAccessibilityFocus(AccessibilityNodeInfo nodeInfo) {
if (nodeInfo.isFocusable() || nodeInfo.isScreenReaderFocusable()) {
return true;
}
List<AccessibilityAction> actions = new ArrayList<>(nodeInfo.getActionList());
actions.removeAll(Arrays.asList(IGNORED_ACTIONS_FOR_A11Y_FOCUS));
// Nodes with relevant actions are always focusable
if (!actions.isEmpty()) {
return true;
}
// If a parent is specifically marked focusable, then this node should not be.
if (findParent(nodeInfo,
(parent) -> parent.isFocusable() || parent.isScreenReaderFocusable()) != null) {
return false;
}
return !TextUtils.isEmpty(nodeInfo.getText())
|| !TextUtils.isEmpty(nodeInfo.getContentDescription());
};
}
|
