@mui/material/InputLabel/InputLabel.js

Quickly build beautiful React apps. MUI is a simple and customizable component library to build faster, beautiful, and more accessible React applications. Follow your own design system, or start with Material Design.

import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import _extends from "@babel/runtime/helpers/esm/extends";
const _excluded = ["disableAnimation", "margin", "shrink", "variant"];
import * as React from 'react';
import PropTypes from 'prop-types';
import { unstable_composeClasses as composeClasses } from '@mui/base';
import formControlState from '../FormControl/formControlState';
import useFormControl from '../FormControl/useFormControl';
import FormLabel, { formLabelClasses } from '../FormLabel';
import useThemeProps from '../styles/useThemeProps';
import styled, { rootShouldForwardProp } from '../styles/styled';
import { getInputLabelUtilityClasses } from './inputLabelClasses';
import { jsx as _jsx } from "react/jsx-runtime";

const useUtilityClasses = ownerState => {
  const {
    classes,
    formControl,
    size,
    shrink,
    disableAnimation,
    variant,
    required
  } = ownerState;
  const slots = {
    root: ['root', formControl && 'formControl', !disableAnimation && 'animated', shrink && 'shrink', size === 'small' && 'sizeSmall', variant],
    asterisk: [required && 'asterisk']
  };
  const composedClasses = composeClasses(slots, getInputLabelUtilityClasses, classes);
  return _extends({}, classes, composedClasses);
};

const InputLabelRoot = styled(FormLabel, {
  shouldForwardProp: prop => rootShouldForwardProp(prop) || prop === 'classes',
  name: 'MuiInputLabel',
  slot: 'Root',
  overridesResolver: (props, styles) => {
    const {
      ownerState
    } = props;
    return [{
      [`& .${formLabelClasses.asterisk}`]: styles.asterisk
    }, styles.root, ownerState.formControl && styles.formControl, ownerState.size === 'small' && styles.sizeSmall, ownerState.shrink && styles.shrink, !ownerState.disableAnimation && styles.animated, styles[ownerState.variant]];
  }
})(({
  theme,
  ownerState
}) => _extends({
  display: 'block',
  transformOrigin: 'top left',
  whiteSpace: 'nowrap',
  overflow: 'hidden',
  textOverflow: 'ellipsis',
  maxWidth: '100%'
}, ownerState.formControl && {
  position: 'absolute',
  left: 0,
  top: 0,
  // slight alteration to spec spacing to match visual spec result
  transform: 'translate(0, 20px) scale(1)'
}, ownerState.size === 'small' && {
  // Compensation for the `Input.inputSizeSmall` style.
  transform: 'translate(0, 17px) scale(1)'
}, ownerState.shrink && {
  transform: 'translate(0, -1.5px) scale(0.75)',
  transformOrigin: 'top left',
  maxWidth: '133%'
}, !ownerState.disableAnimation && {
  transition: theme.transitions.create(['color', 'transform', 'max-width'], {
    duration: theme.transitions.duration.shorter,
    easing: theme.transitions.easing.easeOut
  })
}, ownerState.variant === 'filled' && _extends({
  // Chrome's autofill feature gives the input field a yellow background.
  // Since the input field is behind the label in the HTML tree,
  // the input field is drawn last and hides the label with an opaque background color.
  // zIndex: 1 will raise the label above opaque background-colors of input.
  zIndex: 1,
  pointerEvents: 'none',
  transform: 'translate(12px, 16px) scale(1)',
  maxWidth: 'calc(100% - 24px)'
}, ownerState.size === 'small' && {
  transform: 'translate(12px, 13px) scale(1)'
}, ownerState.shrink && _extends({
  userSelect: 'none',
  pointerEvents: 'auto',
  transform: 'translate(12px, 7px) scale(0.75)',
  maxWidth: 'calc(133% - 24px)'
}, ownerState.size === 'small' && {
  transform: 'translate(12px, 4px) scale(0.75)'
})), ownerState.variant === 'outlined' && _extends({
  // see comment above on filled.zIndex
  zIndex: 1,
  pointerEvents: 'none',
  transform: 'translate(14px, 16px) scale(1)',
  maxWidth: 'calc(100% - 24px)'
}, ownerState.size === 'small' && {
  transform: 'translate(14px, 9px) scale(1)'
}, ownerState.shrink && {
  userSelect: 'none',
  pointerEvents: 'auto',
  maxWidth: 'calc(133% - 24px)',
  transform: 'translate(14px, -9px) scale(0.75)'
})));
const InputLabel = /*#__PURE__*/React.forwardRef(function InputLabel(inProps, ref) {
  const props = useThemeProps({
    name: 'MuiInputLabel',
    props: inProps
  });

  const {
    disableAnimation = false,
    shrink: shrinkProp
  } = props,
        other = _objectWithoutPropertiesLoose(props, _excluded);

  const muiFormControl = useFormControl();
  let shrink = shrinkProp;

  if (typeof shrink === 'undefined' && muiFormControl) {
    shrink = muiFormControl.filled || muiFormControl.focused || muiFormControl.adornedStart;
  }

  const fcs = formControlState({
    props,
    muiFormControl,
    states: ['size', 'variant', 'required']
  });

  const ownerState = _extends({}, props, {
    disableAnimation,
    formControl: muiFormControl,
    shrink,
    size: fcs.size,
    variant: fcs.variant,
    required: fcs.required
  });

  const classes = useUtilityClasses(ownerState);
  return /*#__PURE__*/_jsx(InputLabelRoot, _extends({
    "data-shrink": shrink,
    ownerState: ownerState,
    ref: ref
  }, other, {
    classes: classes
  }));
});
process.env.NODE_ENV !== "production" ? InputLabel.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,

  /**
   * The color of the component. It supports those theme colors that make sense for this component.
   */
  color: PropTypes
  /* @typescript-to-proptypes-ignore */
  .oneOfType([PropTypes.oneOf(['error', 'info', 'primary', 'secondary', 'success', 'warning']), PropTypes.string]),

  /**
   * If `true`, the transition animation is disabled.
   * @default false
   */
  disableAnimation: PropTypes.bool,

  /**
   * If `true`, the component is disabled.
   */
  disabled: PropTypes.bool,

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

  /**
   * If `true`, the `input` of this label is focused.
   */
  focused: PropTypes.bool,

  /**
   * If `dense`, will adjust vertical spacing. This is normally obtained via context from
   * FormControl.
   */
  margin: PropTypes.oneOf(['dense']),

  /**
   * if `true`, the label will indicate that the `input` is required.
   */
  required: PropTypes.bool,

  /**
   * If `true`, the label is shrunk.
   */
  shrink: PropTypes.bool,

  /**
   * 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]),

  /**
   * The variant to use.
   */
  variant: PropTypes.oneOf(['filled', 'outlined', 'standard'])
} : void 0;
export default InputLabel;