Developer What component has
Keyboard support for select and multiselect lists
| Key | Function |
|---|---|
Tab | Moves focus to the next focusable element. |
Shift + Tab | Moves focus to the previous focusable element. |
Space , Enter , Down Arrow | When focus is on the trigger, opens the dropdown. |
Up Arrow , Down Arrow | Moves focus between the options in the dropdown. If focus is on the last/first option, moves focus to the first/last option respectively. |
Space , Enter | Selects the option and closes the dropdown. |
Esc | Closes the dropdown and returns focus to the trigger. |
Roles and attributes for listbox
The list below describes roles and attributes that component already has.
| Role | Attribute | Element | Usage |
|---|---|---|---|
button | div | Identifies Select. Trigger as a button. Accessible name for the button is defined by the text content of the element or by adding aria-label . | |
listbox | div | Identifies the element as a listbox . | |
option | div | Identifies the element as a listbox option. The text content of the element provides the accessible name of the option. | |
checkbox | div | Identifies the div element as a checkbox. The child text content of this div provides the accessible name of the checkbox. | |
aria-selected="true" | li | Specified on an option in the listbox when it is visually highlighted as selected. Occurs only when an option in the list is referenced by aria-activedescendant . | |
aria-label="List of options" | div | Defines a string value that labels an interactive element. It is required props for select without text content. |
Roles and attributes for combobox
The list below describes roles and attributes that component already has.
| Role | Attribute | Element | Usage |
|---|---|---|---|
combobox | div | Identifies the input as a combobox . | |
aria-labelledby="#IDREF" | div | Identifies the element that labels the combobox. | |
aria-controls="#IDREF" | div | Identifies the element that serves as the popup. | |
aria-expanded="false" | div | Indicates that the popup element isn’t displayed. | |
aria-expanded="true" | div | Indicates that the popup element is displayed. | |
aria-activedescendant="IDREF" | div | When an option in the listbox is visually indicated as having keyboard focus, refers to that option. When navigation keys, such as Down Arrow , are pressed, the JavaScript changes the value. Enables assistive technologies to know which element the application regards as focused while DOM focus remains on the input element. | |
aria-autocomplete | div | Indicates whether inputting text could trigger display of one or more predictions of the user's intended value for a combobox , searchbox , or textbox and specifies how predictions will be presented if they are made. | |
aria-haspopup | div | Indicates the availability and type of interactive popup element that can be triggered by the element on which the attribute is set. |
- Listbox Example with Grouped Options article demonstrates a single-select listbox widget with grouped options.
- Find more information in ARIA Authoring Practices Guide from W3C.
- For more information about the radio or checkbox list see Radio button and Checkbox guides.
- For information about the dropdown behavior see Keyboard support for dropdown.
Considerations for developers
Roles and attributes
The list below will help you to keep in mind the necessary roles and attributes to make our components fully accessible in the particular cases in your interfaces.
| Role | Attribute | Element | Usage |
|---|---|---|---|
aria-label | div | Defines a string value that labels an interactive element. It is required props for select without text content. |
Resources
- A11y style guide gives core recommendations for the accessible select lists.
- Find live examples of accessible inputs with different types in DigitalA11y project.
Other recommendations
See more accessibility recommendations in the common Accessibility guide.
Automated screen reader testing
Intergalactic v15.29.0, React v18.2.0, Playwright v1.25.1, Guidepup v0.13.1, MacOS Monterey 12.
Running screen reader against this file.
1. Screen reader goes into the active element.
2. Screen reader says "Select an option, sir list box pop up button".
3. Screen reader presses the "Control+Option+Space" button.
4. Screen reader presses the "Tab" button.
5. Screen reader says "Entering Select an option, sir list box. Select an option, sir group".
6. Screen reader goes into the active element.
7. Screen reader says "In Select an option, sir list box Option 0 text (1 of 6)".
8. Screen reader goes to the next element.
9. Screen reader says "Option 1 text (2 of 6)".
10. Screen reader presses the "Control+Option+Space" button.
11. Screen reader says "Label 1 Select an option, sir list box pop up button".1. Screen reader goes into the active element.
2. Screen reader says "Select an option, sir list box pop up button".
3. Screen reader presses the "Control+Option+Space" button.
4. Screen reader presses the "Tab" button.
5. Screen reader says "Entering Select an option, sir list box. Select an option, sir group".
6. Screen reader goes into the active element.
7. Screen reader says "In Select an option, sir list box Option 0 text (1 of 6)".
8. Screen reader goes to the next element.
9. Screen reader says "Option 1 text (2 of 6)".
10. Screen reader presses the "Control+Option+Space" button.
11. Screen reader says "Label 1 Select an option, sir list box pop up button".