@workday/canvas-kit-react
Version:
The parent module that contains all Workday Canvas Kit React components
32 lines (31 loc) • 1.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.changeFocus = void 0;
/**
* Programmatically change focus in a way that causes a focus ring around the new element.
* @param element Element that should be focused
*/
const changeFocus = (element) => {
// Normally the browser will ignore calls to `focus` on an element that already has focus, but we
// don't want to accidentally show the focus ring in this case, so we'll detect and bail early.
// We'll also bail if there is no element
if (document.activeElement === element || !element) {
return;
}
if (hasCallableProperty(element, 'focus')) {
// Dispatch an unidentified keyboard event for an input provider prior to a focus change so that
// the ring will appear.
if (typeof KeyboardEvent === 'function' && hasCallableProperty(element, 'dispatchEvent')) {
const event = new KeyboardEvent('keydown', { bubbles: true, key: 'Unidentified' });
element.dispatchEvent(event);
}
element.focus();
}
};
exports.changeFocus = changeFocus;
function hasCallableProperty(input, method) {
return (!!input &&
typeof input === 'object' &&
method in input &&
typeof input[method] === 'function');
}