import { RadiantElement } from '@ecopages/radiant';
import type { EventEmitter } from '@ecopages/radiant/tools/event-emitter';
export type RuiListboxProps = {
    value?: string;
    label?: string;
    disabled?: boolean;
    /**
     * When true, the listbox is owned by a parent (e.g. `rui-select`). Selection and
     * keyboard interaction are handled by the parent; border chrome is omitted so the
     * parent popup can provide it.
     */
    embedded?: boolean;
    /** When set, overrides the default border (`true` when standalone, `false` when embedded). */
    bordered?: boolean;
};
export type RuiListboxChangeDetail = {
    value: string;
};
/**
 * `<rui-listbox>` — a list of options where one may be selected.
 *
 * Implements the APG Listbox pattern with roving tabindex on `[role="option"]`.
 * The view-owned `.rui-listbox` shell carries presentation; this host coordinates
 * selection and keyboard interaction only.
 *
 * @see https://www.w3.org/WAI/ARIA/apg/patterns/listbox/
 *
 * @element rui-listbox
 *
 * @attr {string} value - Selected option value. Default: `''`.
 * @attr {string} label - Accessible name for the list. Default: `''`.
 * @attr {boolean} disabled - Disable all selection. Default: `false`.
 * @attr {boolean} embedded - Parent-owned listbox: border chrome omitted, selection handled by the parent. Default: `false`.
 * @attr {boolean} bordered - Override the border (`true` standalone, `false` embedded). Default: follows `embedded`.
 *
 * @fires rui-change - Emitted when an option is selected; detail carries `value`.
 *
 * @cssclass rui-listbox - Scrollable option list surface (`role="listbox"`).
 * @cssclass rui-listbox--bordered - Bordered standalone listbox.
 */
export declare class RuiListbox extends RadiantElement {
    value: string;
    label: string;
    disabled: boolean;
    embedded: boolean;
    bordered: boolean | undefined;
    changeEvent: EventEmitter<RuiListboxChangeDetail>;
    protected onConnected(): void;
    onPropsUpdated(): void;
    private getOptions;
    private sync;
    private select;
    onOptionClick(event: Event): void;
    onOptionKeydown(event: KeyboardEvent): void;
}