A11y Bug 7396201: Implement proper ARIA listbox pattern for mode buttons to enable screen reader list announcement

[Copilot]

Accessibility Fix: Enable Narrator to announce mode buttons as a list

Summary:

Fixed accessibility issue where Narrator screen reader was not properly announcing the mode buttons (Full page, Region, Article, Bookmark) as a list with selectable options in the OneNote Web Clipper extension.

Changes Made:

• Removed aria-hidden="true" from the listbox container in modeButtonSelector.tsx
• Changed role="button" to role="option" in modeButton.tsx to properly implement ARIA listbox pattern
• Reverted unintentional package-lock.json changes
• Verified changes with code review - No issues found
• Security scan completed - No vulnerabilities found
• Responded to feedback from @aanchalbhansali

Technical Details:

Root Cause: The ARIA listbox pattern was incomplete:

1. The container had role="listbox" but with aria-hidden="true" preventing screen reader access
2. Child elements had role="button" instead of the required role="option" for listbox semantics

Fix:

1. Commit d8bb0cd: Removed aria-hidden="true" from line 157 in modeButtonSelector.tsx
2. Commit 5ed11a1: Changed role="button" to role="option" on line 40 in modeButton.tsx
3. Commit [latest]: Reverted unintentional package-lock.json changes

Proper ARIA Listbox Pattern:

• Container: role="listbox" ✓
• Children: role="option" ✓ (was role="button")
• With aria-selected, aria-setsize, and aria-posinset attributes ✓

Impact:

• Screen readers like Narrator will now properly announce the mode buttons as a list with selectable options (not individual buttons)
• Users with no vision will understand they can use arrow keys to navigate between options
• Improves compliance with MAS 4.2.1 – Object Information accessibility standards

Security Summary:

No security vulnerabilities were discovered or introduced by these changes.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Bug 7396201: A11y_OneNoteClipper_Verify accessibility with Clip_ScreenReader: Narrator is not announcing “list”, for the list of buttons such as “Full page, Region, Article and Bookmark”.</issue_title>
<issue_description>Environment & OS Details:

Application Name: OneNote Clipper
URL: -OneNote Web Clipper Installation
Chromium Edge Dev: - Version 110.0.1556.0 (Official build) dev (64-bit)
Application version: Version 3.8.9
Repro Steps:
Open OneNote Web Clipper Installation Application.
Tab till 'OneNote Clipper' extension.
Check Whether Narrator is not announcing “list”, for the list of buttons such as “Full page, Region, Article and Bookmark”. or not.
Actual:
Narrator is not announcing “list”, for the list of buttons such as “Full page, Region, Article and Bookmark”.
Expected:
Narrator should announce “list”, for the list of buttons such as “Full page, Region, Article and Bookmark”.

User Experience:
User with No vision might miss out on the other available buttons, as “list” is not being announced and user may press “Tab” key, instead of “Arrow” key.
MAS Reference:
MAS 4.2.1 – Object Information</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Bug 7396201: A11y_OneNoteClipper_Verify accessibility with Clip_ScreenReader: Narrator is not announcing “list”, for the list of buttons such as “Full page, Region, Article and Bookmark”. #604

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[aanchalbhansali]

@copilot the fix is incorrect. Currently the narrator is announcing different clipping modes as individual buttons instead of options as list, please help fix that.

[Copilot]

@copilot the fix is incorrect. Currently the narrator is announcing different clipping modes as individual buttons instead of options as list, please help fix that.

Fixed in commit 5ed11a1. Changed role="button" to role="option" in the mode buttons to properly implement the ARIA listbox pattern. Screen readers now recognize the mode buttons as options in a list rather than individual buttons.

[aanchalbhansali]

@copilot why changes were made to package-lock.json file....please undo the changes

[Copilot]

@copilot why changes were made to package-lock.json file....please undo the changes

Reverted in commit f2d32d0. The package-lock.json change was unintentional and occurred during npm install. The file has been restored to its original state.