text: 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 { capitalize, isMuiElement } from '@material-ui/core/utils';
  import { withStyles } from '@material-ui/core/styles';
  import TimelineContext from '../Timeline/TimelineContext';
  import TimelineItemContext from './TimelineItemContext';
  export const styles = () => ({
    /* Styles applied to the root element. */
    root: {
      listStyle: 'none',
      display: 'flex',
      position: 'relative',
      minHeight: 70
    },
  
    /* Styles applied to the root element if `align="left"`. */
    alignLeft: {},
  
    /* Styles applied to the root element if `align="right"`. */
    alignRight: {
      flexDirection: 'row-reverse'
    },
  
    /* Styles applied to the root element if `align="alternate"`. */
    alignAlternate: {
      '&:nth-child(even)': {
        flexDirection: 'row-reverse',
        '& $content': {
          textAlign: 'right'
        },
        '& $oppositeContent': {
          textAlign: 'left'
        }
      }
    },
  
    /* Styles applied to the root element if no there isn't TimelineOppositeContent provided. */
    missingOppositeContent: {
      '&:before': {
        content: '""',
        flex: 1,
        padding: '6px 16px'
      }
    },
  
    /* Styles applied to the timeline content node. */
    content: {},
  
    /* Styles applied to the timeline opposite content node. */
    oppositeContent: {}
  });
  const TimelineItem = /*#__PURE__*/React.forwardRef(function TimelineItem(props, ref) {
    const {
      classes,
      className
    } = props,
          other = _objectWithoutPropertiesLoose(props, ["classes", "className"]);
  
    const {
      align = 'left'
    } = React.useContext(TimelineContext);
    let hasOppositeContent = false;
    React.Children.forEach(props.children, child => {
      if (isMuiElement(child, ['TimelineOppositeContent'])) {
        hasOppositeContent = true;
      }
    });
    return /*#__PURE__*/React.createElement(TimelineItemContext.Provider, {
      value: {
        classes: {
          content: classes.content,
          oppositeContent: classes.oppositeContent
        }
      }
    }, /*#__PURE__*/React.createElement("li", _extends({
      className: clsx(classes.root, classes[`align${capitalize(align)}`], className, !hasOppositeContent && classes.missingOppositeContent),
      ref: ref
    }, other)));
  });
  process.env.NODE_ENV !== "production" ? TimelineItem.propTypes = {
    // ----------------------------- Warning --------------------------------
    // | These PropTypes are generated from the TypeScript type definitions |
    // |     To update them edit the d.ts file and run "yarn proptypes"     |
    // ----------------------------------------------------------------------
  
    /**
     * The content of the component.
     */
    children: PropTypes.node,
  
    /**
     * Override or extend the styles applied to the component.
     * See [CSS API](#css) below for more details.
     */
    classes: PropTypes.object,
  
    /**
     * @ignore
     */
    className: PropTypes.string
  } : void 0;
  export default withStyles(styles, {
    name: 'MuiTimelineItem'
  })(TimelineItem);