content: import _extends from "@babel/runtime/helpers/esm/extends";
  import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
  import React from 'react';
  import { isFragment } from 'react-is';
  import PropTypes from 'prop-types';
  import clsx from 'clsx';
  import withStyles from '../styles/withStyles';
  export const styles = {
    /* Styles applied to the root element. */
    root: {
      display: 'flex',
      flexWrap: 'wrap',
      overflowY: 'auto',
      listStyle: 'none',
      padding: 0,
      WebkitOverflowScrolling: 'touch' // Add iOS momentum scrolling.
  
    }
  };
  const GridList = React.forwardRef(function GridList(props, ref) {
    const {
      cellHeight = 180,
      children,
      classes,
      className,
      cols = 2,
      component: Component = 'ul',
      spacing = 4,
      style
    } = props,
          other = _objectWithoutPropertiesLoose(props, ["cellHeight", "children", "classes", "className", "cols", "component", "spacing", "style"]);
  
    return React.createElement(Component, _extends({
      className: clsx(classes.root, className),
      ref: ref,
      style: _extends({
        margin: -spacing / 2
      }, style)
    }, other), React.Children.map(children, child => {
      if (!React.isValidElement(child)) {
        return null;
      }
  
      if (process.env.NODE_ENV !== 'production') {
        if (isFragment(child)) {
          console.error(["Material-UI: the GridList component doesn't accept a Fragment as a child.", 'Consider providing an array instead.'].join('\n'));
        }
      }
  
      const childCols = child.props.cols || 1;
      const childRows = child.props.rows || 1;
      return React.cloneElement(child, {
        style: _extends({
          width: `${100 / cols * childCols}%`,
          height: cellHeight === 'auto' ? 'auto' : cellHeight * childRows + spacing,
          padding: spacing / 2
        }, child.props.style)
      });
    }));
  });
  process.env.NODE_ENV !== "production" ? GridList.propTypes = {
    /**
     * Number of px for one cell height.
     * You can set `'auto'` if you want to let the children determine the height.
     */
    cellHeight: PropTypes.oneOfType([PropTypes.number, PropTypes.oneOf(['auto'])]),
  
    /**
     * Grid Tiles that will be in Grid List.
     */
    children: PropTypes.node.isRequired,
  
    /**
     * 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,
  
    /**
     * Number of columns.
     */
    cols: PropTypes.number,
  
    /**
     * The component used for the root node.
     * Either a string to use a DOM element or a component.
     */
    component: PropTypes.elementType,
  
    /**
     * Number of px for the spacing between tiles.
     */
    spacing: PropTypes.number,
  
    /**
     * @ignore
     */
    style: PropTypes.object
  } : void 0;
  export default withStyles(styles, {
    name: 'MuiGridList'
  })(GridList);