File size: 921 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | /**
* Accessibility helper function for lists of navigation items which have onClick events.
* This triggers a callback on a keydown event, 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.
* @param {Function} callback A callback function
* @returns {Function} the callback to fire on a keydown event
*/
export default function ( callback ) {
return ( event ) => {
if ( event.key === 'Enter' || event.key === ' ' ) {
event.preventDefault();
callback( event );
} else if ( event.key === 'ArrowDown' ) {
if ( event.target.nextSibling ) {
event.preventDefault();
event.target.nextSibling.focus();
}
} else if ( event.key === 'ArrowUp' ) {
if ( event.target.previousSibling ) {
event.preventDefault();
event.target.previousSibling.focus();
}
}
};
}
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