import React from 'react';
export declare type Callback = (event: KeyboardEvent) => void;
/**
 * short key rule:
 *  1. KeyboardEvent.key
 *    e.g: a
 *  2. modifier+key
 *    e.g: Shift+= (Do not use shift++)
 *    modifier list: Atl,Ctrl,Meta,Shift
 *    meta = fn on windows, meta = cmd on osx
 *  3. CmdOrCtrl+key
 *    equal to ctrl+key on windows and meta+key on osx
 */
export declare type ShortKey = string;
export interface ShortcutsProviderProps {
}
export interface ShortcutsProviderState {
    bindKeyDown: (key: ShortKey, callback: Callback) => void;
    bindKeyPress: (key: ShortKey, keyDownCallback: Callback, keyUpCallback: Callback) => void;
    unbindKeyDown: (key: ShortKey, callback: Callback) => void;
    unbindKeyPress: (key: ShortKey, keyDownCallback: Callback, keyUpCallback: Callback) => void;
}
export declare const ShortcutsContext: React.Context<ShortcutsProviderState>;
export declare class ShortcutsProvider extends React.PureComponent<ShortcutsProviderProps, ShortcutsProviderState> {
    private osx;
    private keydownHandlers;
    private keyupHandlers;
    constructor(props: ShortcutsProviderProps);
    componentDidMount(): void;
    componentWillUnmount(): void;
    render(): JSX.Element;
    private handleKeyDown;
    private handleKeyUp;
    private bindKeyDown;
    private bindKeyPress;
    private bindKeyEvent;
    private unbindKeyDown;
    private unbindKeyPress;
    private unbindKeyEvent;
    private formatKey;
}
export declare function withShortcutsContext<OwnProps>(WrappedComponent: React.ComponentType<OwnProps>): React.FunctionComponent<OwnProps>;