import CwElement from '../../internal/cw-element.js';
import CwIconButton from '../icon-button/icon-button.component.js';
import type { CSSResultGroup } from 'lit';
/**
 * @summary Second-level site navigation for linking pages related to the current one, beneath a
 * `<cw-primary-navigation>`. A flat, horizontal strip of links — unlike primary navigation, it has no
 * disclosure/dropdown items; overflow is handled with scroll buttons instead.
 * @documentation https://cordwainer.dev/components/secondary-navigation
 * @status experimental
 * @since 1.3
 *
 * @dependency cw-icon-button
 *
 * @slot - One or more `<cw-secondary-navigation-item>` elements.
 *
 * @csspart base - The component's base wrapper, a `<nav>` landmark element.
 * @csspart nav - The container that wraps the slotted navigation items and the scroll buttons.
 * @csspart scroll-button - The previous/next scroll buttons that show when items overflow, an `<cw-icon-button>`.
 * @csspart scroll-button--start - The starting scroll button.
 * @csspart scroll-button--end - The ending scroll button.
 * @csspart scroll-button__base - The scroll button's exported `base` part.
 */
export default class CwSecondaryNavigation extends CwElement {
    static styles: CSSResultGroup;
    static dependencies: {
        'cw-icon-button': typeof CwIconButton;
    };
    private resizeObserver;
    private readonly localize;
    nav: HTMLElement;
    private hasScrollControls;
    private shouldHideScrollStartButton;
    private shouldHideScrollEndButton;
    /** The accessible label for the `<nav>` landmark. Defaults to a localized "Secondary navigation". */
    label: string;
    /** Disables the scroll arrows that appear when items overflow. */
    noScrollControls: boolean;
    connectedCallback(): void;
    disconnectedCallback(): void;
    private handleScrollToStart;
    private handleScrollToEnd;
    /**
     * The reality of the browser means that we can't expect the scroll position to be exactly what we want it to be,
     * so we add one pixel of wiggle room to our calculations.
     */
    private scrollOffset;
    private scrollFromStart;
    private isScrolledToEnd;
    private updateScrollButtons;
    updateScrollControls(): void;
    render(): import("lit-html").TemplateResult<1>;
}