Link to issue number:

Fixes #12930
Fixup of #12925

Summary of the issue:

When fetching the formatting of the last typed word after a delay, in order to detect if there is a spelling error, errors can occur if the underlying object dies or is replaced.
For example:
when first pressing tab in the Firefox profile selection dialog:

ERROR - queueHandler.flushQueue (18:07:01.213) - MainThread (3880):
Error in func NVDAObject._reportErrorInPreviousWord.<locals>._delayedDetection
Traceback (most recent call last):
  File "queueHandler.pyc", line 55, in flushQueue
  File "NVDAObjects\__init__.pyc", line 1067, in _delayedDetection
  File "textInfos\offsets.pyc", line 573, in getTextWithFields
  File "NVDAObjects\IAccessible\__init__.pyc", line 241, in _getFormatFieldAndOffsets
AttributeError: 'NoneType' object has no attribute 'IAccessibleTextObject'

Description of how this pull request fixes the issue:

Catch Exception rather than RuntimeError when fetching formatting by calling GetTextWithFields.
Note that this exception will still be logged at debug warning.

Testing strategy:

• Performed tests in pr Better detection of spelling errors when typing in MS Word with UIA #12925 to ensure that issue NVDA does not play the buzzer sound in word when a speeling error is made #12161 is still fixed.
• Opened the Firefox profile selection dialog: firefox -profilemanager and pressed tab. Ensured that the NVDA error sound was not played but the error was still logged at debugWarning.

Known issues with pull request:

None known.

Change log entries:

New features
Changes
Bug fixes
For Developers

Code Review Checklist:

• Pull Request description:
  • description is up to date
  • change log entries
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• API is compatible with existing add-ons.
• Documentation:
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English