@material-ui/core/es/BottomNavigationAction/BottomNavigationAction.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';
import ButtonBase from '../ButtonBase';
import unsupportedProp from '../utils/unsupportedProp';
export const styles = theme => ({
  /* Styles applied to the root element. */
  root: {
    transition: theme.transitions.create(['color', 'padding-top'], {
      duration: theme.transitions.duration.short
    }),
    padding: '6px 12px 8px',
    minWidth: 80,
    maxWidth: 168,
    color: theme.palette.text.secondary,
    flex: '1',
    '&$iconOnly': {
      paddingTop: 16
    },
    '&$selected': {
      paddingTop: 6,
      color: theme.palette.primary.main
    }
  },

  /* Pseudo-class applied to the root element if selected. */
  selected: {},

  /* Pseudo-class applied to the root element if `showLabel={false}` and not selected. */
  iconOnly: {},

  /* Styles applied to the span element that wraps the icon and label. */
  wrapper: {
    display: 'inline-flex',
    alignItems: 'center',
    justifyContent: 'center',
    width: '100%',
    flexDirection: 'column'
  },

  /* Styles applied to the label's span element. */
  label: {
    fontFamily: theme.typography.fontFamily,
    fontSize: theme.typography.pxToRem(12),
    opacity: 1,
    transition: 'font-size 0.2s, opacity 0.2s',
    transitionDelay: '0.1s',
    '&$iconOnly': {
      opacity: 0,
      transitionDelay: '0s'
    },
    '&$selected': {
      fontSize: theme.typography.pxToRem(14)
    }
  }
});
const BottomNavigationAction = /*#__PURE__*/React.forwardRef(function BottomNavigationAction(props, ref) {
  const {
    classes,
    className,
    icon,
    label,
    onChange,
    onClick,
    selected,
    showLabel,
    value
  } = props,
        other = _objectWithoutPropertiesLoose(props, ["classes", "className", "icon", "label", "onChange", "onClick", "selected", "showLabel", "value"]);

  const handleChange = event => {
    if (onChange) {
      onChange(event, value);
    }

    if (onClick) {
      onClick(event);
    }
  };

  return /*#__PURE__*/React.createElement(ButtonBase, _extends({
    ref: ref,
    className: clsx(classes.root, className, selected ? classes.selected : !showLabel && classes.iconOnly),
    focusRipple: true,
    onClick: handleChange
  }, other), /*#__PURE__*/React.createElement("span", {
    className: classes.wrapper
  }, icon, /*#__PURE__*/React.createElement("span", {
    className: clsx(classes.label, selected ? classes.selected : !showLabel && classes.iconOnly)
  }, label)));
});
process.env.NODE_ENV !== "production" ? BottomNavigationAction.propTypes = {
  // ----------------------------- Warning --------------------------------
  // | These PropTypes are generated from the TypeScript type definitions |
  // |     To update them edit the d.ts file and run "yarn proptypes"     |
  // ----------------------------------------------------------------------

  /**
   * This prop isn't supported.
   * Use the `component` prop if you need to change the children structure.
   */
  children: unsupportedProp,

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

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

  /**
   * The icon element.
   */
  icon: PropTypes.node,

  /**
   * The label element.
   */
  label: PropTypes.node,

  /**
   * @ignore
   */
  onChange: PropTypes.func,

  /**
   * @ignore
   */
  onClick: PropTypes.func,

  /**
   * @ignore
   */
  selected: PropTypes.bool,

  /**
   * If `true`, the `BottomNavigationAction` will show its label.
   * By default, only the selected `BottomNavigationAction`
   * inside `BottomNavigation` will show its label.
   */
  showLabel: PropTypes.bool,

  /**
   * You can provide your own value. Otherwise, we fallback to the child position index.
   */
  value: PropTypes.any
} : void 0;
export default withStyles(styles, {
  name: 'MuiBottomNavigationAction'
})(BottomNavigationAction);