react-bootstrap/es/SplitButton.js

import _objectWithoutPropertiesLoose from "@babel/runtime-corejs2/helpers/esm/objectWithoutPropertiesLoose";
import _inheritsLoose from "@babel/runtime-corejs2/helpers/esm/inheritsLoose";
import _extends from "@babel/runtime-corejs2/helpers/esm/extends";
import React from 'react';
import PropTypes from 'prop-types';
import Button from './Button';
import Dropdown from './Dropdown';
import SplitToggle from './SplitToggle';
import splitComponentProps from './utils/splitComponentProps';

var propTypes = _extends({}, Dropdown.propTypes, {
  // Toggle props.
  bsStyle: PropTypes.string,
  bsSize: PropTypes.string,
  href: PropTypes.string,
  onClick: PropTypes.func,

  /**
   * The content of the split button.
   */
  title: PropTypes.node.isRequired,

  /**
   * Accessible label for the toggle; the value of `title` if not specified.
   */
  toggleLabel: PropTypes.string,
  // Override generated docs from <Dropdown>.

  /**
   * @private
   */
  children: PropTypes.node
});

var SplitButton =
/*#__PURE__*/
function (_React$Component) {
  _inheritsLoose(SplitButton, _React$Component);

  function SplitButton() {
    return _React$Component.apply(this, arguments) || this;
  }

  var _proto = SplitButton.prototype;

  _proto.render = function render() {
    var _this$props = this.props,
        bsSize = _this$props.bsSize,
        bsStyle = _this$props.bsStyle,
        title = _this$props.title,
        toggleLabel = _this$props.toggleLabel,
        children = _this$props.children,
        props = _objectWithoutPropertiesLoose(_this$props, ["bsSize", "bsStyle", "title", "toggleLabel", "children"]);

    var _splitComponentProps = splitComponentProps(props, Dropdown.ControlledComponent),
        dropdownProps = _splitComponentProps[0],
        buttonProps = _splitComponentProps[1];

    return React.createElement(Dropdown, _extends({}, dropdownProps, {
      bsSize: bsSize,
      bsStyle: bsStyle
    }), React.createElement(Button, _extends({}, buttonProps, {
      disabled: props.disabled,
      bsSize: bsSize,
      bsStyle: bsStyle
    }), title), React.createElement(SplitToggle, {
      "aria-label": toggleLabel || title,
      bsSize: bsSize,
      bsStyle: bsStyle
    }), React.createElement(Dropdown.Menu, null, children));
  };

  return SplitButton;
}(React.Component);

SplitButton.propTypes = propTypes;
SplitButton.Toggle = SplitToggle;
export default SplitButton;