import { CSSResultGroup, PropertyValues, TemplateResult } from 'lit';
import { SbbElement } from '../../core/base-elements.ts';
import { WithListChildren } from '../../core/mixins.ts';
import { SbbBreadcrumbElement } from '../breadcrumb/breadcrumb.component.ts';
declare const SbbBreadcrumbGroupElement_base: import('../../core/mixins.ts').AbstractConstructor<import('../../core/mixins.ts').SbbNamedSlotListMixinType<SbbBreadcrumbElement>> & typeof SbbElement;
/**
 * It can be used as a container for one or more `sbb-breadcrumb` component.
 *
 * @slot - Use the unnamed slot to add `sbb-breadcrumb` elements.
 */
export declare class SbbBreadcrumbGroupElement extends SbbBreadcrumbGroupElement_base {
    static readonly elementName: string;
    static readonly role = "navigation";
    static styles: CSSResultGroup;
    protected readonly listChildLocalNames: string[];
    /** The state of the breadcrumb group. */
    private set _state(value);
    private get _state();
    private _stateInternal;
    private _resizeObserver;
    private _language;
    private _markForFocus;
    constructor();
    private _handleKeyDown;
    protected firstUpdated(changedProperties: PropertyValues<this>): void;
    protected willUpdate(changedProperties: PropertyValues<WithListChildren<this>>): void;
    protected updated(changedProperties: PropertyValues<WithListChildren<this>>): void;
    /** Apply the aria-current attribute to the last sbb-breadcrumb element. */
    private _syncBreadcrumbs;
    /**
     * Sets the focus on the correct element when the ellipsis breadcrumb is displayed and the user is navigating with keyboard's arrows.
     */
    private _focusNextCollapsed;
    private _focusNext;
    /**
     * Note: due to @State annotation on _state, this method triggers a new render; as a consequence, the focus is moved
     * to the `body`, so if the ellipsis element has focus, it's asynchronously forced to the first element.
     */
    private _expandBreadcrumbs;
    /** Evaluate if the expanded breadcrumb element fits in page width, otherwise it needs ellipsis */
    private _evaluateCollapsedState;
    private _renderCollapsed;
    private _renderExpanded;
    protected render(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'sbb-breadcrumb-group': SbbBreadcrumbGroupElement;
    }
}
export {};
//# sourceMappingURL=breadcrumb-group.component.d.ts.map