core/src/js/components/secondary-nav/buttons/events/SubNavToggleArrowDown.js
import EventAbstract from '../../common/events/EventAbstract';
/**
* SubNavToggleArrowDown
*
* Event action handler class.
*/
export default class SubNavToggleArrowDown extends EventAbstract {
/**
* Execute the action to the event.
*/
exec() {
this.event.preventDefault();
// If on the toggle item and the menu is expanded go down in to the first
// menu item link as the focus.
if (this.parentNav.isExpanded()) {
event.stopPropagation();
event.preventDefault();
this.getElement('firstSubnavLink').focus();
}
// If current focus is on the toggle and the menu is not open, go to the
// next sibling menu item.
else {
var node =
this.getElement('next') ||
this.getElement('parentNavNext') ||
this.getElement('last');
if (node) {
node.focus();
}
}
}
}