NVDA2022.1 fails to report list items in some ListViews

[cary-rowen]

Steps to reproduce:

1. Download the provided application and perform the installation;
2. Run the installed application, which will contain a list control.
3. Use the up and down arrows to navigate the list control;

Actual behavior:

• NVDA reports 'selected';
• obj.name: "exception: 'NoneType' object is not subscriptable" in the log
• Full log(nvda.log), add-ons disabled.
• log snippet:

IO - speech.speech.speak (11:03:58.903) - MainThread (12612):
Speaking ['已选择']
IO - inputCore.InputManager.executeGesture (11:03:59.439) - winInputHook (13168):
Input: kb(laptop):downArrow
WARNING - eventHandler._EventExecuter.next (11:03:59.463) - MainThread (12612):
Could not execute function event_gainFocus defined in NVDAObjects module; kwargs: {}
Traceback (most recent call last):
  File "eventHandler.pyc", line 107, in next
  File "NVDAObjects\__init__.pyc", line 1152, in event_gainFocus
  File "NVDAObjects\behaviors.pyc", line 637, in reportFocus
  File "NVDAObjects\__init__.pyc", line 1052, in reportFocus
  File "speech\speech.pyc", line 558, in speakObject
  File "speech\speech.pyc", line 601, in getObjectSpeech
  File "speech\speech.pyc", line 453, in getObjectPropertiesSpeech
  File "baseObject.pyc", line 42, in __get__
  File "baseObject.pyc", line 146, in _getPropertyViaCache
  File "NVDAObjects\IAccessible\sysListView32.pyc", line 581, in _get_name
  File "NVDAObjects\IAccessible\sysListView32.pyc", line 447, in _getColumnLocation
TypeError: 'NoneType' object is not subscriptable
DEBUGWARNING - RPC process 11804 (zdcloud.exe) (11:03:59.468) - Dummy-5 (5688):
Thread 10352, build\x86\remote\sysListView32.cpp, nvdaInProcUtils_sysListView32_getColumnOrderArray, 172:
LVM_GETCOLUMNORDERARRAY failed

ERROR - eventHandler.executeEvent (11:03:59.464) - MainThread (12612):
error executing event: gainFocus on <NVDAObjects.IAccessible.sysListView32.ListItem object at 0x043775B0> with extra args of {}
Traceback (most recent call last):
  File "eventHandler.pyc", line 107, in next
  File "NVDAObjects\__init__.pyc", line 1152, in event_gainFocus
  File "NVDAObjects\behaviors.pyc", line 637, in reportFocus
  File "NVDAObjects\__init__.pyc", line 1052, in reportFocus
  File "speech\speech.pyc", line 558, in speakObject
  File "speech\speech.pyc", line 601, in getObjectSpeech
  File "speech\speech.pyc", line 453, in getObjectPropertiesSpeech
  File "baseObject.pyc", line 42, in __get__
  File "baseObject.pyc", line 146, in _getPropertyViaCache
  File "NVDAObjects\IAccessible\sysListView32.pyc", line 581, in _get_name
  File "NVDAObjects\IAccessible\sysListView32.pyc", line 447, in _getColumnLocation
TypeError: 'NoneType' object is not subscriptable

Expected behavior:

NVDA can report list items.

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

2022.1

Windows version:

Windows 10 21H2 (x64) build 19044.1706

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

download from NVDACN
download from googleDrive

Other information about your system:

None

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

2021.3.5 works as expected.

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes

[cary-rowen]

@seanbudd

Please keep an eye out for this issue, I suspect it may be related to #13657

[seanbudd]

Your file is blocked by google drive. Can you upload a log of the behaviour with alpha?

[cary-rowen]

Hi, @seanbudd
Log-alpha-25478.log
I have re-uploaded the sample application, you can download it from here

[seanbudd]

Hi @cary-rowen - that is intended behaviour.
From what I understand, there is an implementation issue with that application, like there is with StartIsBack/StartAllBack.
Without the application providing the column order array, we can only guess what the list items refer to.

[cary-rowen]

Hi, @seanbudd
However 2021.3.5 works as expected, shouldn't this be a regression?
btw, Narrator, Jaws also work as expected in this case.