in src/focus.service.ts [424:441]
public defaultFires(ev: ArcEvent, scrollSpeed: number | null = this.scrollSpeed): boolean {
if (ev.defaultPrevented) {
return true;
}
const directional = isDirectional(ev.event);
if (directional && ev.next !== null) {
this.selectNode(ev.next, scrollSpeed);
return true;
} else if (ev.event === Direction.SUBMIT) {
if (this.selected) {
this.selected.click();
return true;
}
}
return false;
}