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203 changes: 203 additions & 0 deletions
203
...sso/visual/src/main/java/androidx/test/uiautomator/CustomAccessibilityNodeInfoDumper.java
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| /* | ||
| * Copyright (C) 2012 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 androidx.test.uiautomator; | ||
|
|
||
| import android.util.Log; | ||
| import android.util.Xml; | ||
| import android.view.accessibility.AccessibilityNodeInfo; | ||
|
|
||
| import org.xmlpull.v1.XmlSerializer; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
|
|
||
| /** | ||
| * Slightly modified version of {@link androidx.test.uiautomator.AccessibilityNodeInfoDumper} | ||
| * to include non-invisible elements in window hierarchy dump | ||
| */ | ||
| public class CustomAccessibilityNodeInfoDumper { | ||
|
|
||
| private static final String LOGTAG = CustomAccessibilityNodeInfoDumper.class.getSimpleName(); | ||
| private static final String[] NAF_EXCLUDED_CLASSES = new String[]{ | ||
| android.widget.GridView.class.getName(), android.widget.GridLayout.class.getName(), | ||
| android.widget.ListView.class.getName(), android.widget.TableLayout.class.getName() | ||
| }; | ||
|
|
||
| public static void dumpWindowHierarchy(UiDevice device, OutputStream out) throws IOException { | ||
| XmlSerializer serializer = Xml.newSerializer(); | ||
| serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); | ||
| serializer.setOutput(out, "UTF-8"); | ||
|
|
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| serializer.startDocument("UTF-8", true); | ||
| serializer.startTag("", "hierarchy"); // TODO(allenhair): Should we use a namespace? | ||
| serializer.attribute("", "rotation", Integer.toString(device.getDisplayRotation())); | ||
|
|
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| for (AccessibilityNodeInfo root : device.getWindowRoots()) { | ||
| dumpNodeRec(root, serializer, 0, device.getDisplayWidth(), device.getDisplayHeight()); | ||
| } | ||
|
|
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| serializer.endTag("", "hierarchy"); | ||
| serializer.endDocument(); | ||
| } | ||
|
|
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| private static void dumpNodeRec(AccessibilityNodeInfo node, XmlSerializer serializer, int index, | ||
| int width, int height) throws IOException { | ||
| serializer.startTag("", "node"); | ||
| if (!nafExcludedClass(node) && !nafCheck(node)) | ||
| serializer.attribute("", "NAF", Boolean.toString(true)); | ||
| serializer.attribute("", "index", Integer.toString(index)); | ||
| serializer.attribute("", "text", safeCharSeqToString(node.getText())); | ||
| serializer.attribute("", "resource-id", safeCharSeqToString(node.getViewIdResourceName())); | ||
| serializer.attribute("", "class", safeCharSeqToString(node.getClassName())); | ||
| serializer.attribute("", "package", safeCharSeqToString(node.getPackageName())); | ||
| serializer.attribute("", "content-desc", safeCharSeqToString(node.getContentDescription())); | ||
| serializer.attribute("", "checkable", Boolean.toString(node.isCheckable())); | ||
| serializer.attribute("", "checked", Boolean.toString(node.isChecked())); | ||
| serializer.attribute("", "clickable", Boolean.toString(node.isClickable())); | ||
| serializer.attribute("", "enabled", Boolean.toString(node.isEnabled())); | ||
| serializer.attribute("", "focusable", Boolean.toString(node.isFocusable())); | ||
| serializer.attribute("", "focused", Boolean.toString(node.isFocused())); | ||
| serializer.attribute("", "scrollable", Boolean.toString(node.isScrollable())); | ||
| serializer.attribute("", "long-clickable", Boolean.toString(node.isLongClickable())); | ||
| serializer.attribute("", "password", Boolean.toString(node.isPassword())); | ||
| serializer.attribute("", "selected", Boolean.toString(node.isSelected())); | ||
| serializer.attribute("", "visible-to-user", Boolean.toString(node.isVisibleToUser())); | ||
| serializer.attribute("", "bounds", AccessibilityNodeInfoHelper.getVisibleBoundsInScreen( | ||
| node, width, height).toShortString()); | ||
| int count = node.getChildCount(); | ||
| for (int i = 0; i < count; i++) { | ||
| AccessibilityNodeInfo child = node.getChild(i); | ||
| if (child != null) { | ||
| dumpNodeRec(child, serializer, i, width, height); | ||
| child.recycle(); | ||
| } else { | ||
| Log.i(LOGTAG, String.format("Null child %d/%d, parent: %s", | ||
| i, count, node)); | ||
| } | ||
| } | ||
| serializer.endTag("", "node"); | ||
| } | ||
|
|
||
| /** | ||
| * The list of classes to exclude my not be complete. We're attempting to | ||
| * only reduce noise from standard layout classes that may be falsely | ||
| * configured to accept clicks and are also enabled. | ||
| * | ||
| * @param node | ||
| * @return true if node is excluded. | ||
| */ | ||
| private static boolean nafExcludedClass(AccessibilityNodeInfo node) { | ||
| String className = safeCharSeqToString(node.getClassName()); | ||
| for (String excludedClassName : NAF_EXCLUDED_CLASSES) { | ||
| if (className.endsWith(excludedClassName)) | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| /** | ||
| * We're looking for UI controls that are enabled, clickable but have no | ||
| * text nor content-description. Such controls configuration indicate an | ||
| * interactive control is present in the UI and is most likely not | ||
| * accessibility friendly. We refer to such controls here as NAF controls | ||
| * (Not Accessibility Friendly) | ||
| * | ||
| * @param node | ||
| * @return false if a node fails the check, true if all is OK | ||
| */ | ||
| private static boolean nafCheck(AccessibilityNodeInfo node) { | ||
| boolean isNaf = node.isClickable() && node.isEnabled() | ||
| && safeCharSeqToString(node.getContentDescription()).isEmpty() | ||
| && safeCharSeqToString(node.getText()).isEmpty(); | ||
|
|
||
| if (!isNaf) | ||
| return true; | ||
|
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| // check children since sometimes the containing element is clickable | ||
| // and NAF but a child's text or description is available. Will assume | ||
| // such layout as fine. | ||
| return childNafCheck(node); | ||
| } | ||
|
|
||
| /** | ||
| * This should be used when it's already determined that the node is NAF and | ||
| * a further check of its children is in order. A node maybe a container | ||
| * such as LinerLayout and may be set to be clickable but have no text or | ||
| * content description but it is counting on one of its children to fulfill | ||
| * the requirement for being accessibility friendly by having one or more of | ||
| * its children fill the text or content-description. Such a combination is | ||
| * considered by this dumper as acceptable for accessibility. | ||
| * | ||
| * @param node | ||
| * @return false if node fails the check. | ||
| */ | ||
| private static boolean childNafCheck(AccessibilityNodeInfo node) { | ||
| int childCount = node.getChildCount(); | ||
| for (int x = 0; x < childCount; x++) { | ||
| AccessibilityNodeInfo childNode = node.getChild(x); | ||
|
|
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| if (!safeCharSeqToString(childNode.getContentDescription()).isEmpty() | ||
| || !safeCharSeqToString(childNode.getText()).isEmpty()) | ||
| return true; | ||
|
|
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| if (childNafCheck(childNode)) | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| private static String safeCharSeqToString(CharSequence cs) { | ||
| if (cs == null) | ||
| return ""; | ||
| else { | ||
| return stripInvalidXMLChars(cs); | ||
| } | ||
| } | ||
|
|
||
| private static String stripInvalidXMLChars(CharSequence cs) { | ||
| StringBuffer ret = new StringBuffer(); | ||
| char ch; | ||
| /* http://www.w3.org/TR/xml11/#charsets | ||
| [#x1-#x8], [#xB-#xC], [#xE-#x1F], [#x7F-#x84], [#x86-#x9F], [#xFDD0-#xFDDF], | ||
| [#x1FFFE-#x1FFFF], [#x2FFFE-#x2FFFF], [#x3FFFE-#x3FFFF], | ||
| [#x4FFFE-#x4FFFF], [#x5FFFE-#x5FFFF], [#x6FFFE-#x6FFFF], | ||
| [#x7FFFE-#x7FFFF], [#x8FFFE-#x8FFFF], [#x9FFFE-#x9FFFF], | ||
| [#xAFFFE-#xAFFFF], [#xBFFFE-#xBFFFF], [#xCFFFE-#xCFFFF], | ||
| [#xDFFFE-#xDFFFF], [#xEFFFE-#xEFFFF], [#xFFFFE-#xFFFFF], | ||
| [#x10FFFE-#x10FFFF]. | ||
| */ | ||
| for (int i = 0; i < cs.length(); i++) { | ||
| ch = cs.charAt(i); | ||
|
|
||
| if ((ch >= 0x1 && ch <= 0x8) || (ch >= 0xB && ch <= 0xC) || (ch >= 0xE && ch <= 0x1F) || | ||
| (ch >= 0x7F && ch <= 0x84) || (ch >= 0x86 && ch <= 0x9f) || | ||
| (ch >= 0xFDD0 && ch <= 0xFDDF) || (ch >= 0x1FFFE && ch <= 0x1FFFF) || | ||
| (ch >= 0x2FFFE && ch <= 0x2FFFF) || (ch >= 0x3FFFE && ch <= 0x3FFFF) || | ||
| (ch >= 0x4FFFE && ch <= 0x4FFFF) || (ch >= 0x5FFFE && ch <= 0x5FFFF) || | ||
| (ch >= 0x6FFFE && ch <= 0x6FFFF) || (ch >= 0x7FFFE && ch <= 0x7FFFF) || | ||
| (ch >= 0x8FFFE && ch <= 0x8FFFF) || (ch >= 0x9FFFE && ch <= 0x9FFFF) || | ||
| (ch >= 0xAFFFE && ch <= 0xAFFFF) || (ch >= 0xBFFFE && ch <= 0xBFFFF) || | ||
| (ch >= 0xCFFFE && ch <= 0xCFFFF) || (ch >= 0xDFFFE && ch <= 0xDFFFF) || | ||
| (ch >= 0xEFFFE && ch <= 0xEFFFF) || (ch >= 0xFFFFE && ch <= 0xFFFFF) || | ||
| (ch >= 0x10FFFE && ch <= 0x10FFFF)) | ||
| ret.append("."); | ||
| else | ||
| ret.append(ch); | ||
| } | ||
| return ret.toString(); | ||
| } | ||
| } |
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