import { NativeElement } from '@nonoun/native-core';
import { DataListController } from '@nonoun/native-core';
import type { DataItem } from '@nonoun/native-core';
/**
 * Listbox component with single or multiple selection and keyboard navigation.
 * @attr {boolean} disabled - Disables interaction
 * @attr {boolean} multiple - Enables multi-select mode
 * @attr {boolean} virtual-focus - Uses active attribute instead of roving tabindex (for combobox)
 * @fires native:change - Fired when selection changes with `{ value, label }` detail
 */
export declare class NListbox extends NativeElement {
    #private;
    static observedAttributes: string[];
    constructor();
    get virtualFocus(): boolean;
    set virtualFocus(val: boolean);
    get disabled(): boolean;
    set disabled(val: boolean);
    get multiple(): boolean;
    set multiple(val: boolean);
    get value(): string | null;
    get controller(): DataListController<DataItem>;
    get listValue(): import("@nonoun/native-core").Signal<string | null>;
    attributeChangedCallback(name: string, old: string | null, val: string | null): void;
    setup(): void;
    teardown(): void;
    getActiveOption(): HTMLElement | null;
}
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