/**
 * Copyright Aquera Inc 2023
 *
 * This source code is licensed under the BSD-3-Clause license found in the
 * LICENSE file in the root directory of this source tree.
 */
import type { CSSResultGroup } from 'lit';
import '../nile-icon-button/nile-icon-button';
import NileElement from '../internal/nile-element';
import '../nile-link/nile-link';
export declare class NileNavTab extends NileElement {
    static styles: CSSResultGroup;
    private readonly attrId;
    private readonly componentId;
    navTab: HTMLElement;
    /** The name of the tab panel this tab is associated with. */
    panel: string;
    /** Draws the tab in an active state. */
    active: boolean;
    /** Makes the tab closable and shows a close button. */
    closable: boolean;
    /** Disables the tab and prevents selection. */
    disabled: boolean;
    centered: boolean;
    link?: string;
    connectedCallback(): void;
    firstUpdated(): void;
    updated(): void;
    private syncA11yState;
    /**
     * Give the host element the accessible name, since nile-link is hidden
     * from the accessibility tree.
     * Author `aria-label` (without `data-auto-aria-label`) is never overwritten so icon-only tabs can keep explicit names.
     * Auto-derived names set `data-auto-aria-label="true"` so slot/text updates can refresh them.
     */
    private updateAccessibleName;
    private handleCloseClick;
    private handleTabClick;
    handleActiveChange(): void;
    handleDisabledChange(): void;
    focus(options?: FocusOptions): void;
    blur(): void;
    render(): import("lit-html").TemplateResult<1>;
}
export default NileNavTab;
declare global {
    interface HTMLElementTagNameMap {
        'nile-nav-tab': NileNavTab;
    }
}