NVDA focuses on nothingness after any Windows notification

cyrmax commented 1 year ago

Steps to reproduce:

Start reading some very long text without any keypresses (for example, large message in unigram);
Receive any notification, for example from Chrome, Unigram, any other application;

Actual behavior:

It is impossible to show the actual behavior with speech viewer. The problem is that after few seconds after notification sound NVDA stops any ongoing speech and focuses on some pseudo-window. The only way to exit out of this window is to use alt+tab or any other keys that move system focus. This problem happens only after updating to Windows 11.

Expected behavior:

I expect that NVDA continues to read any ongoing text, after it reads notification text as usual and does not block interaction by focusing on some strange window.

NVDA logs, crash dumps and other attachments:

Here is output from NVDA log viewer that shows information about this strange window.

INFO - globalCommands.script_navigatorObject_devInfo (13:45:25.572) - MainThread (13300):
Developer info for navigator object:
name: ''
role: Role.WINDOW
processID: 13824
roleText: None
states: exception: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None))
isFocusable: exception: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None))
hasFocus: False
Python object: <NVDAObjects.UIA.Toast_win10 object at 0x04E84A30>
Python class mro: (<class 'NVDAObjects.UIA.Toast_win10'>, <class 'NVDAObjects.behaviors.Notification'>, <class 'NVDAObjects.UIA.UIA'>, <class 'NVDAObjects.window.Window'>, <class 'NVDAObjects.NVDAObject'>, <class 'documentBase.TextContainerObject'>, <class 'baseObject.ScriptableObject'>, <class 'baseObject.AutoPropertyObject'>, <class 'garbageHandler.TrackedObject'>, <class 'object'>)
description: ''
location: None
value: exception: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None))
TextInfo: <class 'NVDAObjects.NVDAObjectTextInfo'>
appModule: AppModule(shellexperiencehost, appName='shellexperiencehost', processID=13824)
appModule.productName: 'Microsoft.Windows.ShellExperienceHost'
appModule.productVersion: '10.0.22621.1778'
appModule.helperLocalBindingHandle: c_long(182357448)
windowHandle: 66576
windowClassName: 'Windows.UI.Core.CoreWindow'
windowControlID: 0
windowStyle: -1811939328
extendedWindowStyle: 2097160
windowThreadID: 8000
windowText: ''
displayText: exception: cannot unpack non-iterable NoneType object
UIAElement: <POINTER(IUIAutomationElement) ptr=0xafc89e8 at 5184bc0>
UIA automationID: Exception: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None))
UIA frameworkID: XAML
UIA runtimeID: (42, 66576, 4, 124)
UIA providerDescription: [pid:13824,providerId:0x0 Main(parent link):Unidentified Provider (unmanaged:Windows.UI.Xaml.dll)]
UIA className: Exception: (-2147220991, 'An event was unable to invoke any of the subscribers', (None, None, None, 0, None))
UIA patterns available:

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

Version: alpha-28326,62536a97 (2023.2.0.28326)

Windows version:

Windows 11 Education, version 22h2

Name and version of other software in use when reproducing the issue:

None

Other information about your system:

If this is important, I use high contrast Windows theme.

nvaccess / nvda