/**
 * Keyboard event utilities for accessibility
 */
/**
 * Checks if Enter or Space was pressed (for button-like behavior)
 *
 * @example
 * ```svelte
 * <script>
 *   import { keyboard } from 'alus-ui';
 *
 *   function handleKeydown(e: KeyboardEvent) {
 *     if (keyboard.isActivationKey(e)) {
 *       // Activate button
 *     }
 *   }
 * </script>
 * ```
 */
export declare function isActivationKey(event: KeyboardEvent): boolean;
/**
 * Checks if Escape was pressed
 */
export declare function isEscape(event: KeyboardEvent): boolean;
/**
 * Checks if Arrow key was pressed
 */
export declare function isArrow(event: KeyboardEvent): boolean;
/**
 * Checks if Home or End was pressed
 */
export declare function isHomeEnd(event: KeyboardEvent): boolean;
/**
 * Checks if Page Up or Page Down was pressed
 */
export declare function isPageUpDown(event: KeyboardEvent): boolean;
/**
 * Prevents default behavior for activation keys (Space key scrolling)
 *
 * @example
 * ```svelte
 * <div
 *   role="button"
 *   onkeydown={(e) => {
 *     keyboard.preventActivation(e);
 *     if (keyboard.isActivationKey(e)) {
 *       // Handle activation
 *     }
 *   }}
 * >
 *   Custom Button
 * </div>
 * ```
 */
export declare function preventActivation(event: KeyboardEvent): void;
/**
 * Gets the direction from an arrow key event
 */
export declare function getArrowDirection(event: KeyboardEvent): 'up' | 'down' | 'left' | 'right' | null;
/**
 * Keyboard event handler utility object
 */
export declare const keyboard: {
    isActivationKey: typeof isActivationKey;
    isEscape: typeof isEscape;
    isArrow: typeof isArrow;
    isHomeEnd: typeof isHomeEnd;
    isPageUpDown: typeof isPageUpDown;
    preventActivation: typeof preventActivation;
    getArrowDirection: typeof getArrowDirection;
};