reactstrap/src/Spinner.js

import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import { mapToCssModules, tagPropType } from './utils';

const propTypes = {
  /** Set a custom element for this component */
  tag: tagPropType,
  /** Change animation of spinner */
  type: PropTypes.oneOf(['border', 'grow']),
  /** Change size of spinner */
  size: PropTypes.oneOf(['sm']),
  /** Change color of spinner */
  color: PropTypes.oneOf([
    'primary',
    'secondary',
    'success',
    'danger',
    'warning',
    'info',
    'light',
    'dark',
  ]),
  /** Add custom class */
  className: PropTypes.string,
  /** Change existing className with a new className */
  cssModule: PropTypes.object,
  /** Pass children so this component can wrap the child elements */
  children: PropTypes.string,
};

function Spinner(props) {
  const {
    className,
    cssModule,
    type = 'border',
    size,
    color,
    children = 'Loading...',
    tag: Tag = 'div',
    ...attributes
  } = props;

  const classes = mapToCssModules(
    classNames(
      className,
      size ? `spinner-${type}-${size}` : false,
      `spinner-${type}`,
      color ? `text-${color}` : false,
    ),
    cssModule,
  );

  return (
    <Tag role="status" {...attributes} className={classes}>
      {children && (
        <span className={mapToCssModules('visually-hidden', cssModule)}>
          {children}
        </span>
      )}
    </Tag>
  );
}

Spinner.propTypes = propTypes;

export default Spinner;