wp-calypso/client/my-sites/store/lib/get-keyboard-handler/README.md

getKeyboardHandler

getKeyboardHandler( callback: function )

This is an accessibility helper function for lists of items which have onClick events. It is an event handler, meant to be called on onKeyDown. It triggers the passed callback only if the key pressed is space or enter, to mirror button functionality. It will also focus the next/previous sibling (if one exists) if the down/up arrows are pressed.

This is meant to be used on a list of elements (<tr>, <li>, …), so that they can be made keyboard-accessible. Example:

/* eslint-disable jsx-a11y/no-noninteractive-element-to-interactive-role */
import getKeyboardHandler from 'woocommerce/lib/get-keyboard-handler';

export default function ExampleNavList() {
    return (
        <ul>
            <li
                role="button"
                tabIndex="0"
                onClick={ onClick }
                onKeyDown={ getKeyboardHandler( onClick ) }
            >
                { complexChild }
            </li>
            <li
                role="button"
                tabIndex="0"
                onClick={ onClick }
                onKeyDown={ getKeyboardHandler( onClick ) }
            >
                { complexChild }
            </li>
            <li
                role="button"
                tabIndex="0"
                onClick={ onClick }
                onKeyDown={ getKeyboardHandler( onClick ) }
            >
                { complexChild }
            </li>
        </ul>
    );
}

The tabIndex is what makes the lis focusable, so make sure you have that, and that you also add focus styles along with your hover styles.

This is used in the <TableRow> component to make the table rows keyboard accessible.