react-resizable/build/utils.js.flow

A component that is resizable with handles.

// @flow
import React from 'react';
import type {Element as ReactElement} from 'react';

// React.addons.cloneWithProps look-alike that merges style & className.
export function cloneElement(element: ReactElement<any>, props: Object): ReactElement<any> {
  if (props.style && element.props.style) {
    props.style = {...element.props.style, ...props.style};
  }
  if (props.className && element.props.className) {
    props.className = `${element.props.className} ${props.className}`;
  }
  return React.cloneElement(element, props);
}