Add slider support for browse mode navigation

[hdzrvcc0X74]

Link to issue number:

Fixes #17005

Summary of the issue:

Currently, slider controls (HTML range inputs and ARIA sliders) are not included in browse mode navigation. Users cannot navigate to sliders using quick navigation keys.

Description of user facing changes:

• Slider controls are now included in browse mode navigation.
• Users can navigate to sliders using quick navigation. By default, no gesture is assigned.

Description of developer facing changes:

• Added "slider" node type to browseMode.py base implementation;
• Implemented slider detection for:
  • Gecko (Firefox) virtual buffers,
  • MSHTML (Internet Explorer) virtual buffers,
  • UIA (Edge, modern UI) browsers,
  • Chromium (Chrome) IAccessible implementation.
• Updated changes.md documentation.

Description of development approach:

1. Extended the existing browse mode navigation framework to recognize slider controls;
2. Used existing control type detection patterns (ARIA roles, HTML input types, UIA control types);
3. Followed the same pattern as other form controls (checkbox, radio button, etc.).

Testing strategy:

Tested manually.

Known issues with pull request:

N/A

Code Review Checklist:

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

[cary-rowen]

I think it's acceptable to default to not assigning gestures.

[LeonarddeR]

Agreed with @cary-rowen here. I think it is best to leave this unassigned by default. I think there are higher priority controls that support quicknav but are still unassigned.

[bramd]

Agreed, and there is always f/shift+f to go through all form fields or people can use the Element List. Besides that, this is a welcome change.

[hdzrvcc0X74]

Hi @cary-rowen, @LeonarddeR and @bramd,
Thanks for your comments! Changes have been applied.

[wmhn1872265132]

This feature should also be mentioned in the User Guide's chapter Other navigation commands

[hdzrvcc0X74]

@wmhn1872265132, done!

Thanks.

[seanbudd]

Could you please confirm testing and fill out the testing steps?

[hdzrvcc0X74]

Hi @seanbudd and @LeonarddeR,

Done!

Thanks.