import { Reducer } from "react";
import { KeyboardFocusedId, KeyboardFocusState } from "../types.d";
export declare const ENABLE_KEYBOARD_MODE = "ENABLE_KEYBOARD_MODE";
export interface EnableKeyboardModeAction {
    type: typeof ENABLE_KEYBOARD_MODE;
}
export declare type EnableKeyboardModeActionCreator = () => EnableKeyboardModeAction;
/**
 * The action creator to enable keyboard mode. This is normally called immediately
 * after a keydown event.
 */
export declare const enableKeyboardMode: EnableKeyboardModeActionCreator;
export declare const DISABLE_KEYBOARD_MODE = "DISABLE_KEYBOARD_MODE";
export interface DisableKeyboardModeAction {
    type: typeof DISABLE_KEYBOARD_MODE;
}
export declare type DisableKeyboardModeActionCreator = () => DisableKeyboardModeAction;
/**
 * The action creator to disable keyboard mode. This is normally called immediately
 * after a mousedown event.
 */
export declare const disableKeyboardMode: DisableKeyboardModeActionCreator;
export declare const SET_FOCUSED_ID = "SET_FOCUSED_ID";
export interface SetFocusedIdAction {
    type: typeof SET_FOCUSED_ID;
    focusedId: KeyboardFocusedId;
}
export declare type SetFocusedIdActionCreator = (focusedId: KeyboardFocusedId) => SetFocusedIdAction;
/**
 * An action creator to just update the focused id. The main purpose of this functionality
 * is for dealing with temporary widgets like menus and dialogs so that the keyboard
 * focus can be tracked even if the user didn't initiate the widget with a keyboard event.
 * When the user triggers a keydown event, the focus will appear immediately.
 *
 * @param focusedId The next focused id to use
 */
export declare const setFocusedId: SetFocusedIdActionCreator;
declare type KeyboardFocusReducer = Reducer<KeyboardFocusState, EnableKeyboardModeAction | DisableKeyboardModeAction | SetFocusedIdAction>;
export declare const reducer: KeyboardFocusReducer;
/**
 * This hook is used to be able to interact with the keyboard focus state. It is really
 * just used for the `KeyboardTracker` component itself.
 *
 * @param defaultFocusedId The default focused id to use
 * @param defaultKeyboardMode Boolean if the keyboard focus state should start in keyboard
 * mode. When this is omitted, it will start enabled if the `defaultFocusId` is truthy
 */
export default function useKeyboardFocusState(defaultFocusedId: KeyboardFocusedId, defaultKeyboardMode?: boolean): {
    enable: () => void;
    disable: () => void;
    setFocusedId: (focusedId: string | null) => void;
    focusedId: string | null;
    isKeyboardMode: boolean;
};
export {};