import { ToolbarInteractionModes } from '../types/toolbar-interaction-modes.js';
import { A11yToolbarTabIndex } from '../types/toolbar.js';
/**
 * Get key from ToolbarTabIndex [key]: number
 * @param tabIndex - toolbar control tab index [key]: number
 * @internal
 */
export declare function getTabIndexValue(tabIndex: A11yToolbarTabIndex): number;
/**
 * Get value from ToolbarTabIndex [key]: number
 *
 * @internal
 * @param tabIndex - toolbar control tab index [key]: number
 */
export declare function getTabIndexKey(tabIndex: A11yToolbarTabIndex): ToolbarInteractionModes;
/**
 * The arrow keys handleControls accepts
 */
export type ArrowDirection = 'ArrowLeft' | 'ArrowRight';
/**
 * Modify the controls depending on the param direction:
 * Left (-1) or right (+1), will modify the next tabIndex control.
 *
 * @param direction - ArrowDirection, only accepts AerrowLeft | ArrowRight
 * @param controls - All toolbar buttons as array of objects [key]: number
 */
export declare function handleControls(direction: ArrowDirection, controls: A11yToolbarTabIndex[]): A11yToolbarTabIndex[];