import { Collection } from "./collection";
import { PopupControl } from "./popup-control";
import { MenuItem } from "./menu-item";
export declare class PopupMenu extends PopupControl {
    private _items;
    private _renderedItems;
    private _selectedIndex;
    protected renderContent(): HTMLElement;
    keyDown(e: KeyboardEvent): void;
    get items(): Collection<MenuItem>;
    get selectedIndex(): number;
    set selectedIndex(index: number);
    private removeAriaExpanded;
}