/**
 * Keyboard handler for the date grid (ARIA `grid` roving-tabindex pattern).
 *
 * Arrow keys move the roving focus by day/week; Home/End jump to the week edges;
 * PageUp/PageDown step a month (Shift = a year); Enter/Space select. All moves
 * go through the controller, which pulls the focus back into view by navigating
 * when it crosses the visible window.
 */
import type { DateGridContext } from './date-grid.types.js';
/** The slice of the date-grid surface the keyboard handler drives. Both the
 * controller and its context satisfy it. */
export type DateGridKeyboardTarget = Pick<DateGridContext, 'focusedDate' | 'weekStartsOn' | 'disabled' | 'moveFocus' | 'setFocusedDate' | 'selectDate'>;
/**
 * Handle a keydown on the grid. Returns `true` if the key was consumed (and
 * `preventDefault` was called), `false` to let it bubble.
 */
export declare function handleDateGridKeydown(event: KeyboardEvent, target: DateGridKeyboardTarget): boolean;