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

React components that implement Google's Material Design.

import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
import React from 'react';
import PropTypes from 'prop-types';
import NativeSelectInput from './NativeSelectInput';
import withStyles from '../styles/withStyles';
import formControlState from '../FormControl/formControlState';
import useFormControl from '../FormControl/useFormControl';
import ArrowDropDownIcon from '../internal/svg-icons/ArrowDropDown';
import Input from '../Input';
export var styles = function styles(theme) {
  return {
    /* Styles applied to the select component `root` class. */
    root: {},

    /* Styles applied to the select component `select` class. */
    select: {
      '-moz-appearance': 'none',
      // Reset
      '-webkit-appearance': 'none',
      // Reset
      // When interacting quickly, the text can end up selected.
      // Native select can't be selected either.
      userSelect: 'none',
      borderRadius: 0,
      // Reset
      minWidth: 16,
      // So it doesn't collapse.
      cursor: 'pointer',
      '&:focus': {
        // Show that it's not an text input
        backgroundColor: theme.palette.type === 'light' ? 'rgba(0, 0, 0, 0.05)' : 'rgba(255, 255, 255, 0.05)',
        borderRadius: 0 // Reset Chrome style

      },
      // Remove IE 11 arrow
      '&::-ms-expand': {
        display: 'none'
      },
      '&$disabled': {
        cursor: 'default'
      },
      '&[multiple]': {
        height: 'auto'
      },
      '&:not([multiple]) option, &:not([multiple]) optgroup': {
        backgroundColor: theme.palette.background.paper
      }
    },

    /* Styles applied to the select component if `variant="filled"`. */
    filled: {},

    /* Styles applied to the select component if `variant="outlined"`. */
    outlined: {
      borderRadius: theme.shape.borderRadius
    },

    /* Styles applied to the select component `selectMenu` class. */
    selectMenu: {
      height: 'auto',
      // Reset
      textOverflow: 'ellipsis',
      whiteSpace: 'nowrap',
      overflow: 'hidden'
    },

    /* Pseudo-class applied to the select component `disabled` class. */
    disabled: {},

    /* Styles applied to the select component `icon` class. */
    icon: {
      // We use a position absolute over a flexbox in order to forward the pointer events
      // to the input.
      position: 'absolute',
      right: 0,
      top: 'calc(50% - 12px)',
      // Center vertically
      color: theme.palette.action.active,
      pointerEvents: 'none' // Don't block pointer events on the select under the icon.

    }
  };
};
var defaultInput = React.createElement(Input, null);
/**
 * An alternative to `<Select native />` with a much smaller bundle size footprint.
 */

var NativeSelect = React.forwardRef(function NativeSelect(props, ref) {
  var children = props.children,
      classes = props.classes,
      _props$IconComponent = props.IconComponent,
      IconComponent = _props$IconComponent === void 0 ? ArrowDropDownIcon : _props$IconComponent,
      _props$input = props.input,
      input = _props$input === void 0 ? defaultInput : _props$input,
      inputProps = props.inputProps,
      variant = props.variant,
      other = _objectWithoutProperties(props, ["children", "classes", "IconComponent", "input", "inputProps", "variant"]);

  var muiFormControl = useFormControl();
  var fcs = formControlState({
    props: props,
    muiFormControl: muiFormControl,
    states: ['variant']
  });
  return React.cloneElement(input, _extends({
    // Most of the logic is implemented in `NativeSelectInput`.
    // The `Select` component is a simple API wrapper to expose something better to play with.
    inputComponent: NativeSelectInput,
    select: true,
    inputProps: _extends({
      children: children,
      classes: classes,
      IconComponent: IconComponent,
      variant: fcs.variant,
      type: undefined
    }, inputProps, {}, input ? input.props.inputProps : {}),
    ref: ref
  }, other));
});
process.env.NODE_ENV !== "production" ? NativeSelect.propTypes = {
  /**
   * The option elements to populate the select with.
   * Can be some `<option>` elements.
   */
  children: PropTypes.node,

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

  /**
   * The icon that displays the arrow.
   */
  IconComponent: PropTypes.elementType,

  /**
   * An `Input` element; does not have to be a material-ui specific `Input`.
   */
  input: PropTypes.element,

  /**
   * Attributes applied to the `select` element.
   */
  inputProps: PropTypes.object,

  /**
   * Callback function fired when a menu item is selected.
   *
   * @param {object} event The event source of the callback.
   * You can pull out the new value by accessing `event.target.value`.
   */
  onChange: PropTypes.func,

  /**
   * The input value.
   */
  value: PropTypes.any,

  /**
   * The variant to use.
   */
  variant: PropTypes.oneOf(['standard', 'outlined', 'filled'])
} : void 0;
NativeSelect.muiName = 'Select';
export default withStyles(styles, {
  name: 'MuiNativeSelect'
})(NativeSelect);