@material-ui/core/es/Toolbar/Toolbar.js

import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import * as React from 'react';
import PropTypes from 'prop-types';
import clsx from 'clsx';
import withStyles from '../styles/withStyles';
export const styles = theme => ({
  /* Styles applied to the root element. */
  root: {
    position: 'relative',
    display: 'flex',
    alignItems: 'center'
  },

  /* Styles applied to the root element if `disableGutters={false}`. */
  gutters: {
    paddingLeft: theme.spacing(2),
    paddingRight: theme.spacing(2),
    [theme.breakpoints.up('sm')]: {
      paddingLeft: theme.spacing(3),
      paddingRight: theme.spacing(3)
    }
  },

  /* Styles applied to the root element if `variant="regular"`. */
  regular: theme.mixins.toolbar,

  /* Styles applied to the root element if `variant="dense"`. */
  dense: {
    minHeight: 48
  }
});
const Toolbar = /*#__PURE__*/React.forwardRef(function Toolbar(props, ref) {
  const {
    classes,
    className,
    component: Component = 'div',
    disableGutters = false,
    variant = 'regular'
  } = props,
        other = _objectWithoutPropertiesLoose(props, ["classes", "className", "component", "disableGutters", "variant"]);

  return /*#__PURE__*/React.createElement(Component, _extends({
    className: clsx(classes.root, classes[variant], className, !disableGutters && classes.gutters),
    ref: ref
  }, other));
});
process.env.NODE_ENV !== "production" ? Toolbar.propTypes = {
  /**
   * Toolbar children, usually a mixture of `IconButton`, `Button` and `Typography`.
   */
  children: PropTypes.node,

  /**
   * Override or extend the styles applied to the component.
   * See [CSS API](#css) below for more details.
   */
  classes: PropTypes.object.isRequired,

  /**
   * @ignore
   */
  className: PropTypes.string,

  /**
   * The component used for the root node.
   * Either a string to use a HTML element or a component.
   */
  component: PropTypes
  /* @typescript-to-proptypes-ignore */
  .elementType,

  /**
   * If `true`, disables gutter padding.
   */
  disableGutters: PropTypes.bool,

  /**
   * The variant to use.
   */
  variant: PropTypes.oneOf(['regular', 'dense'])
} : void 0;
export default withStyles(styles, {
  name: 'MuiToolbar'
})(Toolbar);