import * as React from 'react';

export type TransitionDuration = number | { enter: number, exit: number };
export type TransitionCallback = (element: HTMLElement) => void;

export type TransitionHandlers = {
  onEnter: TransitionCallback;
  onEntering: TransitionCallback;
  onEntered: TransitionCallback;
  onExit: TransitionCallback;
  onExiting: TransitionCallback;
  onExited: TransitionCallback;
};

export interface TransitionProps extends Partial<TransitionHandlers> {
  children: React.ReactElement<any>;
  className?: string;
  in: boolean;
  appear?: boolean;
  unmountOnExit?: boolean;
}