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author | Kevin Jin <kjin@google.com> | 2015-02-20 09:35:39 -0800 |
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committer | Kevin Jin <kjin@google.com> | 2015-02-20 14:37:53 -0800 |
commit | 4b31201b5a2dbf8036da5a8d089a68a39cc1dc44 (patch) | |
tree | 0a4a6d976ca45f3b87433927d57d50cb3cd51b41 /src/io/appium/droiddriver/validators/DefaultAccessibilityValidator.java | |
parent | 85a1731f32032690e528a6ca1084aa148200569b (diff) | |
download | droiddriver-4b31201b5a2dbf8036da5a8d089a68a39cc1dc44.tar.gz |
rename package 'com.google.android' to 'io.appium'
Change-Id: I2c7c96cd6a6971806e2ea7b06cd6c2c6666e4340
Diffstat (limited to 'src/io/appium/droiddriver/validators/DefaultAccessibilityValidator.java')
-rw-r--r-- | src/io/appium/droiddriver/validators/DefaultAccessibilityValidator.java | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/io/appium/droiddriver/validators/DefaultAccessibilityValidator.java b/src/io/appium/droiddriver/validators/DefaultAccessibilityValidator.java new file mode 100644 index 0000000..1ce3649 --- /dev/null +++ b/src/io/appium/droiddriver/validators/DefaultAccessibilityValidator.java @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2013 DroidDriver committers + * + * 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 io.appium.droiddriver.validators; + +import android.annotation.TargetApi; +import android.text.TextUtils; +import android.view.accessibility.AccessibilityNodeInfo; + +import io.appium.droiddriver.UiElement; +import io.appium.droiddriver.actions.Action; +import io.appium.droiddriver.uiautomation.UiAutomationElement; + +/** + * Fall-back Validator for accessibility. + */ +@TargetApi(14) +public class DefaultAccessibilityValidator implements Validator { + @Override + public boolean isApplicable(UiElement element, Action action) { + return true; + } + + @Override + public String validate(UiElement element, Action action) { + return isSpeakingNode(element) ? null : "TalkBack cannot speak about it"; + } + + // Logic from TalkBack + private static boolean isAccessibilityFocusable(UiElement element) { + if (isActionableForAccessibility(element)) { + return true; + } + + if (isTopLevelScrollItem(element) && (isSpeakingNode(element))) { + return true; + } + return false; + } + + private static boolean isTopLevelScrollItem(UiElement element) { + UiElement parent = element.getParent(); + return parent != null && parent.isScrollable(); + } + + @SuppressWarnings("deprecation") + private static boolean isActionableForAccessibility(UiElement element) { + if (element.isFocusable() || element.isClickable() || element.isLongClickable()) { + return true; + } + + if (element instanceof UiAutomationElement) { + AccessibilityNodeInfo node = ((UiAutomationElement) element).getRawElement(); + return (node.getActions() & AccessibilityNodeInfo.ACTION_FOCUS) == AccessibilityNodeInfo.ACTION_FOCUS; + } + return false; + } + + private static boolean isSpeakingNode(UiElement element) { + return hasContentDescriptionOrText(element) || element.isCheckable() + || hasNonActionableSpeakingChildren(element); + } + + private static boolean hasNonActionableSpeakingChildren(UiElement element) { + // Recursively check visible and non-focusable descendant nodes. + for (UiElement child : element.getChildren(UiElement.VISIBLE)) { + if (!isAccessibilityFocusable(child) && isSpeakingNode(child)) { + return true; + } + } + return false; + } + + private static boolean hasContentDescriptionOrText(UiElement element) { + return !TextUtils.isEmpty(element.getContentDescription()) + || !TextUtils.isEmpty(element.getText()); + } +} |