import { RadiantElement } from '@ecopages/radiant';
export type RuiNavigationMenuProps = {
    label?: string;
};
type RuiNavigationMenuBindings = {
    label: string;
};
/**
 * `<rui-navigation-menu>` — a composition-first site navigation shell.
 *
 * Implements the APG Disclosure Navigation Menu interaction model: top-level
 * triggers open exclusive panels composed from other radiant-ui primitives.
 *
 * Mark triggers with `data-navigation-trigger` and `data-value`. Mark matching
 * panels with `data-navigation-panel` and the same `data-value`. Top-level bar
 * links and triggers should use `data-navigation-item` (added by the view helpers).
 *
 * @see https://www.w3.org/WAI/ARIA/apg/patterns/disclosure/examples/disclosure-navigation/
 * @element rui-navigation-menu
 * @attr {string} label - Accessible name for the `nav` landmark.
 * @cssclass rui-navigation-menu - Root `nav` surface.
 * @cssclass rui-navigation-menu__bar - Top-level trigger / link bar.
 * @cssclass rui-navigation-menu__panels - Panel region (`aria-hidden` toggling).
 */
export declare class RuiNavigationMenu extends RadiantElement<RuiNavigationMenuBindings> {
    label: string;
    private openValue;
    protected onConnected(): void;
    private getBarItems;
    private syncBarRovingTabindex;
    private isBarTrigger;
    private getTriggers;
    private getPanel;
    private getTrigger;
    private getPanels;
    private getPanelFocusables;
    private focusPanelEntry;
    private syncPanels;
    private closeMenu;
    private openPanel;
    private getEventElement;
    private isWithinOpenPanel;
    onDocumentClick(event: MouseEvent): void;
    onDocumentKeydown(event: KeyboardEvent): void;
    onRootKeydown(event: KeyboardEvent): void;
    onTriggerClick(event: Event): void;
    onBarItemKeydown(event: KeyboardEvent): void;
    onPanelKeydown(event: KeyboardEvent): void;
}
export {};