text: import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/objectWithoutPropertiesLoose";
  import _extends from "@babel/runtime/helpers/extends";
  import React from 'react';
  import PropTypes from 'prop-types';
  import clsx from 'clsx';
  import formControlState from '../FormControl/formControlState';
  import withFormControlContext from '../FormControl/withFormControlContext';
  import withStyles from '../styles/withStyles';
  export const styles = theme => ({
    /* Styles applied to the root element. */
    root: _extends({
      color: theme.palette.text.secondary
    }, theme.typography.caption, {
      textAlign: 'left',
      marginTop: 8,
      lineHeight: '1em',
      minHeight: '1em',
      margin: 0,
      '&$disabled': {
        color: theme.palette.text.disabled
      },
      '&$error': {
        color: theme.palette.error.main
      }
    }),
  
    /* Styles applied to the root element if `error={true}`. */
    error: {},
  
    /* Styles applied to the root element if `disabled={true}`. */
    disabled: {},
  
    /* Styles applied to the root element if `margin="dense"`. */
    marginDense: {
      marginTop: 4
    },
  
    /* Styles applied to the root element if `variant="filled"` or `variant="outlined"`. */
    contained: {
      margin: '8px 12px 0'
    },
  
    /* Styles applied to the root element if `focused={true}`. */
    focused: {},
  
    /* Styles applied to the root element if `filled={true}`. */
    filled: {},
  
    /* Styles applied to the root element if `required={true}`. */
    required: {}
  });
  const FormHelperText = React.forwardRef(function FormHelperText(props, ref) {
    const {
      classes,
      className: classNameProp,
      component: Component = 'p',
      muiFormControl
    } = props,
          other = _objectWithoutPropertiesLoose(props, ["classes", "className", "component", "disabled", "error", "filled", "focused", "margin", "muiFormControl", "required", "variant"]);
  
    const fcs = formControlState({
      props,
      muiFormControl,
      states: ['variant', 'margin', 'disabled', 'error', 'filled', 'focused', 'required']
    });
    return React.createElement(Component, _extends({
      className: clsx(classes.root, (fcs.variant === 'filled' || fcs.variant === 'outlined') && classes.contained, classNameProp, fcs.margin === 'dense' && classes.marginDense, fcs.disabled && classes.disabled, fcs.error && classes.error, fcs.filled && classes.filled, fcs.focused && classes.focused, fcs.required && classes.required),
      ref: ref
    }, other));
  });
  process.env.NODE_ENV !== "production" ? FormHelperText.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.isRequired,
  
    /**
     * @ignore
     */
    className: PropTypes.string,
  
    /**
     * The component used for the root node.
     * Either a string to use a DOM element or a component.
     */
    component: PropTypes.elementType,
  
    /**
     * If `true`, the helper text should be displayed in a disabled state.
     */
    disabled: PropTypes.bool,
  
    /**
     * If `true`, helper text should be displayed in an error state.
     */
    error: PropTypes.bool,
  
    /**
     * If `true`, the helper text should use filled classes key.
     */
    filled: PropTypes.bool,
  
    /**
     * If `true`, the helper text should use focused classes key.
     */
    focused: PropTypes.bool,
  
    /**
     * If `dense`, will adjust vertical spacing. This is normally obtained via context from
     * FormControl.
     */
    margin: PropTypes.oneOf(['dense']),
  
    /**
     * @ignore
     */
    muiFormControl: PropTypes.object,
  
    /**
     * If `true`, the helper text should use required classes key.
     */
    required: PropTypes.bool,
  
    /**
     * The variant to use.
     */
    variant: PropTypes.oneOf(['standard', 'outlined', 'filled'])
  } : void 0;
  export default withStyles(styles, {
    name: 'MuiFormHelperText'
  })(withFormControlContext(FormHelperText));