import { ComponentInterface } from '../../stencil-public-runtime';
import { MenubarItem } from '../../utils';
import { SearchEnv } from '../../utils/subjects.api';
/**
 * Main menubar component. Each item can have a menu with subitems
 * When a main menubar item is the current active one, a sub-menubar is shown and each subitem can have a menu with subitems.
 * @cssprop {--zanit-menubar-max-width} Maximum width of the menubar.
 */
export declare class ZanitMenubar implements ComponentInterface {
    host: HTMLZanitMenubarElement;
    /** Menubar items extracted from `data`. */
    items: MenubarItem[];
    /** ID of the currently open menu. */
    openMenu: string | undefined;
    /** ID of the item to show the subitems navbar for. */
    openNavbar: string | undefined;
    /** IDs of the current prop */
    currentPath: string[];
    isMobile: boolean;
    loading: boolean;
    /** The data to build the menu (as an array of `MenubarItem` or a JSON array) or the url to fetch to retrieve it. */
    data: Promise<MenubarItem[]> | MenubarItem[] | URL | string;
    /** Path of the current item. */
    current: string | undefined;
    /** Initial search query. */
    searchQuery: string | undefined;
    /** Environment for search suggestions */
    searchEnv: SearchEnv;
    /** Search area (e.g. "SCUOLA", "UNIVERSITÀ", "DIZIONARI").  */
    searchArea?: string | undefined;
    private timerId;
    /** Setup the list of items. */
    parseData(data: typeof this.data): Promise<void>;
    onItemsChange(): void;
    onCurrentChange(): void;
    connectedCallback(): Promise<void>;
    /** Close any open menu when clicking outside. */
    handleOutsideClick(event: MouseEvent): void;
    /** Close any open menu when pressing Escape or Tab.
     * Uses document-level listener to ensure Escape works from any focus location within the menu.
     */
    handleKeydown(event: KeyboardEvent): void;
    handleMouseover(): void;
    /**
     * Automatically close any open menu on mouseout after with a little delay.
     * The delay is useful to avoid immediate closing when the pointer briefly leaves the component.
     */
    handleMouseout(event: MouseEvent): void;
    /** Close the menu when it loses focus. */
    handleFocusout(event: FocusEvent): void;
    /** Fetch data from passed URL. */
    private fetchData;
    /** Initialize tabindex on menuitems of menubars, setting -1 to all but the first one. */
    private initTabindex;
    /** Indicates whether the element has to be highlighted by checking whether it is set as current or one of its descendants is. */
    private isActive;
    /** Opens the menu associated with the menubar `item`, if any. */
    private showMenu;
    /** Get all elements with `menuitem` role inside parent's `menubar`. * */
    private getParentMenubarElements;
    /** Move the focus to the previous menubar item, or the last one. Then open its menu if any other menu was open. */
    private focusPreviousItem;
    /** Move the focus to the next menubar item, or the first one. Then open its menu if any other menu was open. */
    private focusNextItem;
    /** Handles keyboard navigation on menubar items. */
    private handleItemKeydown;
    /** Get the previous element with `role=group`. */
    private getPreviousGroup;
    /** Get the next element with `role=group`. */
    private getNextGroup;
    private openItemMenu;
    /** Handles keyboard navigation events from `Menu` component. */
    private handleMenuKeydown;
    render(): any;
}