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/*
* 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 android.view.accessibility.AccessibilityNodeInfo;
import java.util.function.Predicate;
/**
* Utility class for working with AccessibilityNodeInfo
*/
public class AccessibilityNodeInfoUtils {
public static AccessibilityNodeInfo findParent(
AccessibilityNodeInfo start, Predicate<AccessibilityNodeInfo> condition) {
AccessibilityNodeInfo parent = start.getParent();
if ((parent == null) || (condition.test(parent))) {
return parent;
}
return findParent(parent, condition);
}
public static AccessibilityNodeInfo findChildDfs(
AccessibilityNodeInfo start, Predicate<AccessibilityNodeInfo> condition) {
int numChildren = start.getChildCount();
for (int i = 0; i < numChildren; i++) {
AccessibilityNodeInfo child = start.getChild(i);
if (child != null) {
if (condition.test(child)) {
return child;
}
AccessibilityNodeInfo childResult = findChildDfs(child, condition);
if (childResult != null) {
return childResult;
}
}
}
return null;
}
}
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