When entering a secure desktop, cancel speech

[seanbudd]

Link to issue number:

None

Summary of the issue:

NVDA 2022.2 would cancel speech when handling the foreground event for entering a secure desktop.

The security patch for 2022.2.1 broke how the foreground event was handled, and subsequently #14105 opted to avoid the foreground event entirely.

This results in NVDA not correctly cancelling speech when entering a secure desktop.

Description of user facing changes

Speech is cancelled when entering a secure desktop

Description of development approach

Cancel speech just before enter sleep mode, when SecureDesktopNVDAObject handles it's gain focus event.

Testing strategy:

Manual testing

Known issues with pull request:

Change log entries:

N/A unreleased bug in 2022.2.3

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
• Security precautions taken.

[feerrenrut]

With the suggested comment, happy for this to go ahead.

[AppVeyorBot]

• PASS: Translation comments check.
• PASS: Unit tests.
• FAIL: Lint check. See test results for more information.
• PASS: System tests.
• Build (for testing PR): https://ci.appveyor.com/api/buildjobs/849202g40lnu83hp/artifacts/output/nvda_snapshot_pr14135-26571,f35d6324.exe

See test results for failed build of commit f35d63248c

[AppVeyorBot]

• PASS: Translation comments check.
• PASS: Unit tests.
• FAIL: Lint check. See test results for more information.
• PASS: System tests.
• Build (for testing PR): https://ci.appveyor.com/api/buildjobs/yj4fu3sut42p4x0k/artifacts/output/nvda_snapshot_pr14135-26584,f35d6324.exe

See test results for failed build of commit f35d63248c

[AppVeyorBot]

• PASS: Translation comments check.
• PASS: Unit tests.
• FAIL: Lint check. See test results for more information.
• FAIL: System tests. See test results for more information.
• Build (for testing PR): https://ci.appveyor.com/api/buildjobs/tdumj9ks1vm8hn59/artifacts/output/nvda_snapshot_pr14135-26586,f35d6324.exe

See test results for failed build of commit f35d63248c