@material-ui/core/es/internal/SwitchBase.js

React components that implement Google's Material Design.

import _extends from "@babel/runtime/helpers/extends";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
// @inheritedComponent IconButton
import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import withStyles from '../styles/withStyles';
import IconButton from '../IconButton';
export const styles = {
  root: {
    display: 'inline-flex',
    alignItems: 'center',
    transition: 'none',
    '&:hover': {
      // Disable the hover effect for the IconButton.
      backgroundColor: 'transparent'
    }
  },
  checked: {},
  disabled: {},
  input: {
    cursor: 'inherit',
    position: 'absolute',
    opacity: 0,
    width: '100%',
    height: '100%',
    top: 0,
    left: 0,
    margin: 0,
    padding: 0
  }
};
/**
 * @ignore - internal component.
 */

class SwitchBase extends React.Component {
  constructor(props) {
    super();

    this.handleFocus = event => {
      if (this.props.onFocus) {
        this.props.onFocus(event);
      }

      const {
        muiFormControl
      } = this.context;

      if (muiFormControl && muiFormControl.onFocus) {
        muiFormControl.onFocus(event);
      }
    };

    this.handleBlur = event => {
      if (this.props.onBlur) {
        this.props.onBlur(event);
      }

      const {
        muiFormControl
      } = this.context;

      if (muiFormControl && muiFormControl.onBlur) {
        muiFormControl.onBlur(event);
      }
    };

    this.handleInputChange = event => {
      const checked = event.target.checked;

      if (!this.isControlled) {
        this.setState({
          checked
        });
      }

      if (this.props.onChange) {
        this.props.onChange(event, checked);
      }
    };

    this.isControlled = props.checked != null;
    this.state = {};

    if (!this.isControlled) {
      // not controlled, use internal state
      this.state.checked = props.defaultChecked !== undefined ? props.defaultChecked : false;
    }
  }

  render() {
    const _this$props = this.props,
          {
      autoFocus,
      checked: checkedProp,
      checkedIcon,
      classes,
      className: classNameProp,
      disabled: disabledProp,
      icon,
      id,
      inputProps,
      inputRef,
      name,
      onBlur,
      onChange,
      onFocus,
      readOnly,
      required,
      tabIndex,
      type,
      value
    } = _this$props,
          other = _objectWithoutProperties(_this$props, ["autoFocus", "checked", "checkedIcon", "classes", "className", "disabled", "icon", "id", "inputProps", "inputRef", "name", "onBlur", "onChange", "onFocus", "readOnly", "required", "tabIndex", "type", "value"]);

    const {
      muiFormControl
    } = this.context;
    let disabled = disabledProp;

    if (muiFormControl) {
      if (typeof disabled === 'undefined') {
        disabled = muiFormControl.disabled;
      }
    }

    const checked = this.isControlled ? checkedProp : this.state.checked;
    const hasLabelFor = type === 'checkbox' || type === 'radio';
    return React.createElement(IconButton, _extends({
      component: "span",
      className: classNames(classes.root, {
        [classes.checked]: checked,
        [classes.disabled]: disabled
      }, classNameProp),
      disabled: disabled,
      tabIndex: null,
      role: undefined,
      onFocus: this.handleFocus,
      onBlur: this.handleBlur
    }, other), checked ? checkedIcon : icon, React.createElement("input", _extends({
      autoFocus: autoFocus,
      checked: checked,
      className: classes.input,
      disabled: disabled,
      id: hasLabelFor && id,
      name: name,
      onChange: this.handleInputChange,
      readOnly: readOnly,
      ref: inputRef,
      required: required,
      tabIndex: tabIndex,
      type: type,
      value: value
    }, inputProps)));
  }

} // NB: If changed, please update Checkbox, Switch and Radio
// so that the API documentation is updated.


SwitchBase.propTypes = process.env.NODE_ENV !== "production" ? {
  /**
   * If `true`, the input will be focused during the first mount.
   */
  autoFocus: PropTypes.bool,

  /**
   * If `true`, the component is checked.
   */
  checked: PropTypes.oneOfType([PropTypes.bool, PropTypes.string]),

  /**
   * The icon to display when the component is checked.
   */
  checkedIcon: PropTypes.node.isRequired,

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

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

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

  /**
   * If `true`, the switch will be disabled.
   */
  disabled: PropTypes.bool,

  /**
   * If `true`, the ripple effect will be disabled.
   */
  disableRipple: PropTypes.bool,

  /**
   * The icon to display when the component is unchecked.
   */
  icon: PropTypes.node.isRequired,

  /**
   * The id of the `input` element.
   */
  id: PropTypes.string,

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

  /**
   * Use that property to pass a ref callback to the native input component.
   */
  inputRef: PropTypes.oneOfType([PropTypes.func, PropTypes.object]),

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

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

  /**
   * Callback fired when the state is changed.
   *
   * @param {object} event The event source of the callback.
   * You can pull out the new value by accessing `event.target.checked`.
   * @param {boolean} checked The `checked` value of the switch
   */
  onChange: PropTypes.func,

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

  /**
   * It prevents the user from changing the value of the field
   * (not from interacting with the field).
   */
  readOnly: PropTypes.bool,

  /**
   * If `true`, the input will be required.
   */
  required: PropTypes.bool,

  /**
   * @ignore
   */
  tabIndex: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),

  /**
   * The input component property `type`.
   */
  type: PropTypes.string.isRequired,

  /**
   * The value of the component.
   */
  value: PropTypes.string
} : {};
SwitchBase.contextTypes = {
  muiFormControl: PropTypes.object
};
export default withStyles(styles, {
  name: 'MuiSwitchBase'
})(SwitchBase);