import { type KeyboardEvent, type RefObject } from 'react';
import type { TimeDropdownHandle } from './TimeDropdown';
/**
 * Capture-phase keydown handler for inputs with a TimeDropdown.
 *
 * - Dropdown OPEN:  ArrowUp/Down/Enter/Escape → forwarded to dropdown;
 *                   ArrowLeft/Right → blocked (no segment switch).
 * - Dropdown CLOSED: Enter → opens dropdown;
 *                    ArrowUp/Down & digits on time segments → blocked.
 */
export declare function useTimeDropdownKeyCapture({ enabled, isOpen, dropdownRef, onOpen, }: {
    enabled: boolean;
    isOpen: boolean;
    dropdownRef: RefObject<TimeDropdownHandle | null>;
    onOpen: () => void;
}): (e: KeyboardEvent) => void;