@mui/lab/TimelineItem/TimelineItem.js

Laboratory for new MUI modules.

import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import _extends from "@babel/runtime/helpers/esm/extends";
const _excluded = ["position", "className"];
import * as React from 'react';
import PropTypes from 'prop-types';
import clsx from 'clsx';
import { capitalize, isMuiElement } from '@mui/material/utils';
import { styled, useThemeProps } from '@mui/material/styles';
import { unstable_composeClasses as composeClasses } from '@mui/base';
import { timelineContentClasses } from '../TimelineContent';
import { timelineOppositeContentClasses } from '../TimelineOppositeContent';
import TimelineContext from '../Timeline/TimelineContext';
import { getTimelineItemUtilityClass } from './timelineItemClasses';
import { jsx as _jsx } from "react/jsx-runtime";

const useUtilityClasses = ownerState => {
  const {
    position,
    classes,
    hasOppositeContent
  } = ownerState;
  const slots = {
    root: ['root', `position${capitalize(position)}`, !hasOppositeContent && 'missingOppositeContent']
  };
  return composeClasses(slots, getTimelineItemUtilityClass, classes);
};

const TimelineItemRoot = styled('li', {
  name: 'MuiTimelineItem',
  slot: 'Root',
  overridesResolver: (props, styles) => {
    const {
      ownerState
    } = props;
    return [styles.root, styles[`position${capitalize(ownerState.position)}`]];
  }
})(({
  ownerState
}) => _extends({
  listStyle: 'none',
  display: 'flex',
  position: 'relative',
  minHeight: 70
}, ownerState.position === 'left' && {
  flexDirection: 'row-reverse'
}, ownerState.position === 'alternate' && {
  '&:nth-of-type(even)': {
    flexDirection: 'row-reverse',
    [`& .${timelineContentClasses.root}`]: {
      textAlign: 'right'
    },
    [`& .${timelineOppositeContentClasses.root}`]: {
      textAlign: 'left'
    }
  }
}, !ownerState.hasOppositeContent && {
  '&:before': {
    content: '""',
    flex: 1,
    padding: '6px 16px'
  }
}));
const TimelineItem = /*#__PURE__*/React.forwardRef(function TimelineItem(inProps, ref) {
  const props = useThemeProps({
    props: inProps,
    name: 'MuiTimelineItem'
  });

  const {
    position: positionProp,
    className
  } = props,
        other = _objectWithoutPropertiesLoose(props, _excluded);

  const {
    position: positionContext
  } = React.useContext(TimelineContext);
  let hasOppositeContent = false;
  React.Children.forEach(props.children, child => {
    if (isMuiElement(child, ['TimelineOppositeContent'])) {
      hasOppositeContent = true;
    }
  });

  const ownerState = _extends({}, props, {
    position: positionProp || positionContext || 'right',
    hasOppositeContent
  });

  const classes = useUtilityClasses(ownerState);
  return /*#__PURE__*/_jsx(TimelineContext.Provider, {
    value: {
      position: ownerState.position
    },
    children: /*#__PURE__*/_jsx(TimelineItemRoot, _extends({
      className: clsx(classes.root, className),
      ownerState: ownerState,
      ref: ref
    }, other))
  });
});
process.env.NODE_ENV !== "production" ? TimelineItem.propTypes
/* remove-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.
   */
  classes: PropTypes.object,

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

  /**
   * The position where the timeline's item should appear.
   */
  position: PropTypes.oneOf(['left', 'right']),

  /**
   * The system prop that allows defining system overrides as well as additional CSS styles.
   */
  sx: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.func, PropTypes.object, PropTypes.bool])), PropTypes.func, PropTypes.object])
} : void 0;
export default TimelineItem;