Chrome Version       : All
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Not Applicable, its an Android WebView Issue

What steps will reproduce the problem?

1. Build attached Android Project
2. Open app with TalkBack on 
3. Use linear navigation until you hit the "Refocus on WebView" target at the bottom. When you do, the focus will reset to the WebView.
4. Immediately start "Read from top" in Talkback.

What is the expected result?

Talkback will read the entire screen worth of content.


What happens instead?

Talkback's "Read from top" gets stuck on the WebView.


Please provide any additional information below. Attach a screenshot if
possible.

I think that the root cause is inconsistent AccessibilityNodeInfo generated by the Webview. In the case where it is working properly, the Node Info that TalkBack is receiving for the WebView looks something like: 

android.view.accessibility.AccessibilityNodeInfo@34599; boundsInParent: Rect(0, 0 - 412, 732); boundsInScreen: Rect(0, 0 - 1081, 1920);
packageName: com.example.app; className: android.webkit.WebView; text: null; error: null; maxTextLength: -1; contentDescription: ; viewIdResName: null; checkable: false; checked: false; focusable: true; focused: true; selected: false;
clickable: false; longClickable: false; contextClickable: false; enabled: true; password: false; scrollable: true; importantForAccessibility: false; actions: [AccessibilityAction: ACTION_NEXT_HTML_ELEMENT - null,
AccessibilityAction: ACTION_PREVIOUS_HTML_ELEMENT - null, AccessibilityAction: ACTION_NEXT_AT_MOVEMENT_GRANULARITY - null, AccessibilityAction: ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY - null, AccessibilityAction: ACTION_SHOW_ON_SCREEN - null,
AccessibilityAction: ACTION_CONTEXT_CLICK - null, AccessibilityAction: ACTION_CLEAR_FOCUS - null, AccessibilityAction: ACTION_CLEAR_ACCESSIBILITY_FOCUS - null]

But in the cases where TalkBack gets stuck, it looks something like

android.view.accessibility.AccessibilityNodeInfo@3453c; boundsInParent: Rect(0, 0 - 1080, 1920); boundsInScreen: Rect(0, 0 - 1080, 1920);
packageName: com.example.app; className: android.webkit.WebView; text: null; error: null; maxTextLength: -1; contentDescription: null; viewIdResName: null; checkable: false; checked: false; focusable: false; focused: false; selected: false;
clickable: false; longClickable: false; contextClickable: false; enabled: true; password: false; scrollable: false; importantForAccessibility: false; actions: []

(note the empty list of actions for the second one).


Extra Note: I know that the way that Accessibility focus is used in the sample app is generally not a good idea, but It happens to be important for our use case.
 

Deleted: webview-bug.zip 100 KB

webview-bug.zip 100 KB Download