[Search:AppSearch:Engines:Search UI page]Issues with Filter and Sort fields

[L1nBra]

Description Combo box options should be announced correctly without unexpected options, additional words. Also correct total number should be announced. For the user using assistive technology to clearly understand what options are in the list and how many of them are in total.

Preconditions Stateful App Search -> Engines -> Search UI page is opened. Engine is added. Use Screen Reader (NVDA).

Steps to reproduce

1.Using only keyboard navigate to Filter fields by pressing Tab key. 2.Navigate through options by pressing down arrow key. 3.Observe screen reader.

NVDA Speech Viewer + UI elements

Actual Result

• Additional options are announced without total number (example:"meta_description" announced after "headings 7 of 9"). Different total number is announced for options (example: "1 of 9", "8 of 10", "9 of 11"). Same behavior with Sort fields field.

Expected Result

• Additional options without total number are not announced. Same total number should be announced (there are 27 options) with options.

Meta Issue

Kibana Version: 8.17.0-SNAPSHOT

OS: Windows 11 Pro

Browser: Chrome Version 130.0.6723.70 (Official Build) (64-bit)

Screen reader: NVDA

WCAG or Vendor Guidance (optional)

• Understanding SC 1.3.1: Info and Relationships (Level A)(https://www.w3.org/WAI/WCAG22/Understanding/info-and-relationships.html)
• Understanding SC 4.1.2: Name, Role, Value (Level A)(https://www.w3.org/WAI/WCAG22/Understanding/name-role-value.html)

Related to: https://github.com/elastic/search-team/issues/8256

[elasticmachine]

Pinging @elastic/kibana-accessibility (Project:Accessibility)