@material-ui/core/esm/FormLabel/FormLabel.js

React components that implement Google's Material Design.

import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
import _extends from "@babel/runtime/helpers/esm/extends";
import React from 'react';
import PropTypes from 'prop-types';
import clsx from 'clsx';
import formControlState from '../FormControl/formControlState';
import useFormControl from '../FormControl/useFormControl';
import withStyles from '../styles/withStyles';
export var styles = function styles(theme) {
  return {
    /* Styles applied to the root element. */
    root: _extends({
      color: theme.palette.text.secondary
    }, theme.typography.body1, {
      lineHeight: 1,
      padding: 0,
      '&$focused': {
        color: theme.palette.primary[theme.palette.type === 'light' ? 'dark' : 'light']
      },
      '&$disabled': {
        color: theme.palette.text.disabled
      },
      '&$error': {
        color: theme.palette.error.main
      }
    }),

    /* Pseudo-class applied to the root element if `focused={true}`. */
    focused: {},

    /* Pseudo-class applied to the root element if `disabled={true}`. */
    disabled: {},

    /* Pseudo-class applied to the root element if `error={true}`. */
    error: {},

    /* Pseudo-class applied to the root element if `filled={true}`. */
    filled: {},

    /* Pseudo-class applied to the root element if `required={true}`. */
    required: {},

    /* Styles applied to the asterisk element. */
    asterisk: {
      '&$error': {
        color: theme.palette.error.main
      }
    }
  };
};
var FormLabel = React.forwardRef(function FormLabel(props, ref) {
  var children = props.children,
      classes = props.classes,
      classNameProp = props.className,
      _props$component = props.component,
      Component = _props$component === void 0 ? 'label' : _props$component,
      disabled = props.disabled,
      error = props.error,
      filled = props.filled,
      focused = props.focused,
      required = props.required,
      other = _objectWithoutProperties(props, ["children", "classes", "className", "component", "disabled", "error", "filled", "focused", "required"]);

  var muiFormControl = useFormControl();
  var fcs = formControlState({
    props: props,
    muiFormControl: muiFormControl,
    states: ['required', 'focused', 'disabled', 'error', 'filled']
  });
  return React.createElement(Component, _extends({
    className: clsx(classes.root, classNameProp, fcs.disabled && classes.disabled, fcs.error && classes.error, fcs.filled && classes.filled, fcs.focused && classes.focused, fcs.required && classes.required),
    ref: ref
  }, other), children, fcs.required && React.createElement("span", {
    className: clsx(classes.asterisk, fcs.error && classes.error)
  }, "\u2009", '*'));
});
process.env.NODE_ENV !== "production" ? FormLabel.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 label should be displayed in a disabled state.
   */
  disabled: PropTypes.bool,

  /**
   * If `true`, the label should be displayed in an error state.
   */
  error: PropTypes.bool,

  /**
   * If `true`, the label should use filled classes key.
   */
  filled: PropTypes.bool,

  /**
   * If `true`, the input of this label is focused (used by `FormGroup` components).
   */
  focused: PropTypes.bool,

  /**
   * If `true`, the label will indicate that the input is required.
   */
  required: PropTypes.bool
} : void 0;
export default withStyles(styles, {
  name: 'MuiFormLabel'
})(FormLabel);