content: import _extends from 'babel-runtime/helpers/extends';
  import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
  import _classCallCheck from 'babel-runtime/helpers/classCallCheck';
  import _possibleConstructorReturn from 'babel-runtime/helpers/possibleConstructorReturn';
  import _inherits from 'babel-runtime/helpers/inherits';
  import classNames from 'classnames';
  import React from 'react';
  import PropTypes from 'prop-types';
  
  import { prefix } from './utils/bootstrapUtils';
  import createChainedFunction from './utils/createChainedFunction';
  
  var propTypes = {
    onClick: PropTypes.func,
    /**
     * The toggle content, if left empty it will render the default toggle (seen above).
     */
    children: PropTypes.node
  };
  
  var contextTypes = {
    $bs_navbar: PropTypes.shape({
      bsClass: PropTypes.string,
      expanded: PropTypes.bool,
      onToggle: PropTypes.func.isRequired
    })
  };
  
  var NavbarToggle = function (_React$Component) {
    _inherits(NavbarToggle, _React$Component);
  
    function NavbarToggle() {
      _classCallCheck(this, NavbarToggle);
  
      return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));
    }
  
    NavbarToggle.prototype.render = function render() {
      var _props = this.props,
          onClick = _props.onClick,
          className = _props.className,
          children = _props.children,
          props = _objectWithoutProperties(_props, ['onClick', 'className', 'children']);
  
      var navbarProps = this.context.$bs_navbar || { bsClass: 'navbar' };
  
      var buttonProps = _extends({
        type: 'button'
      }, props, {
        onClick: createChainedFunction(onClick, navbarProps.onToggle),
        className: classNames(className, prefix(navbarProps, 'toggle'), !navbarProps.expanded && 'collapsed')
      });
  
      if (children) {
        return React.createElement(
          'button',
          buttonProps,
          children
        );
      }
  
      return React.createElement(
        'button',
        buttonProps,
        React.createElement(
          'span',
          { className: 'sr-only' },
          'Toggle navigation'
        ),
        React.createElement('span', { className: 'icon-bar' }),
        React.createElement('span', { className: 'icon-bar' }),
        React.createElement('span', { className: 'icon-bar' })
      );
    };
  
    return NavbarToggle;
  }(React.Component);
  
  NavbarToggle.propTypes = propTypes;
  NavbarToggle.contextTypes = contextTypes;
  
  export default NavbarToggle;