Tooltip

• Accessibility considerations
• Resources
• Accessibility testing

Accessibility considerations

1. After the tooltip opens, initial focus should be set on the first focusable element in the tooltip. See WAI-ARIA Authoring Practices Modal Dialog Example, Accessibility Features section for best practices on setting focus. Note: This does not apply to the tooltip icon or tooltip definition components.
2. After the tooltip closes, focus should retain the user’s point of regard and return to the element that invoked it. Note: This does not apply to the tooltip icon or tooltip definition components where focus never leaves the element that invokes it.
3. The tooltip component’s focus must not move outside the modal until it is closed. Note: This does not apply to the tooltip icon or tooltip definition components, as noted above, focus never leaves the element that invokes it.
4. The tooltip component has the same accessibility considerations as outlined in the modal component documentation.

Resources

• W3C WAI-ARIA Authoring Practices Tooltip Design Pattern covers the usage of ARIA names, state and roles, as well as the expected keyboard interactions.
• ARIA1: Using the aria-describedby property to provide a descriptive label for user interface controls
• IBM Accessibility Requirements:
  • 1.3.1 Info and Relationships (WCAG Success Criteria 1.3.1)
  • 1.4.13 Content on Hover or Focus (WCAG Success Criteria 1.4.13)
  • 3.3.2 Labels or Instructions (WCAG Success Criteria 3.3.2)

Accessibility testing

Automated test