/**
* Tom Select v2.2.0
* Licensed under the Apache License, Version 2.0 (the "License");
*/

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.dropdown_header = factory());
})(this, (function () { 'use strict';

  /*! @orchidjs/unicode-variants | https://github.com/orchidjs/unicode-variants | Apache License (v2) */
  const accent_pat = '[\u0300-\u036F\u{b7}\u{2be}]'; // \u{2bc}
  /** @type {TUnicodeMap} */

  const latin_convert = {
    'æ': 'ae',
    'ⱥ': 'a',
    'ø': 'o',
    '⁄': '/',
    '∕': '/'
  };
  new RegExp(Object.keys(latin_convert).join('|') + '|' + accent_pat, 'gu');

  /**
   * Return a dom element from either a dom query string, jQuery object, a dom element or html string
   * https://stackoverflow.com/questions/494143/creating-a-new-dom-element-from-an-html-string-using-built-in-dom-methods-or-pro/35385518#35385518
   *
   * param query should be {}
   */

  const getDom = query => {
    if (query.jquery) {
      return query[0];
    }

    if (query instanceof HTMLElement) {
      return query;
    }

    if (isHtmlString(query)) {
      var tpl = document.createElement('template');
      tpl.innerHTML = query.trim(); // Never return a text node of whitespace as the result

      return tpl.content.firstChild;
    }

    return document.querySelector(query);
  };
  const isHtmlString = arg => {
    if (typeof arg === 'string' && arg.indexOf('<') > -1) {
      return true;
    }

    return false;
  };

  /**
   * Converts a scalar to its best string representation
   * for hash keys and HTML attribute values.
   *
   * Transformations:
   *   'str'     -> 'str'
   *   null      -> ''
   *   undefined -> ''
   *   true      -> '1'
   *   false     -> '0'
   *   0         -> '0'
   *   1         -> '1'
   *
   */
  /**
   * Prevent default
   *
   */

  const preventDefault = (evt, stop = false) => {
    if (evt) {
      evt.preventDefault();

      if (stop) {
        evt.stopPropagation();
      }
    }
  };

  /**
   * Plugin: "dropdown_header" (Tom Select)
   * Copyright (c) contributors
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
   * file except in compliance with the License. You may obtain a copy of the License at:
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under
   * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
   * ANY KIND, either express or implied. See the License for the specific language
   * governing permissions and limitations under the License.
   *
   */
  function plugin (userOptions) {
    const self = this;
    const options = Object.assign({
      title: 'Untitled',
      headerClass: 'dropdown-header',
      titleRowClass: 'dropdown-header-title',
      labelClass: 'dropdown-header-label',
      closeClass: 'dropdown-header-close',
      html: data => {
        return '<div class="' + data.headerClass + '">' + '<div class="' + data.titleRowClass + '">' + '<span class="' + data.labelClass + '">' + data.title + '</span>' + '<a class="' + data.closeClass + '">&times;</a>' + '</div>' + '</div>';
      }
    }, userOptions);
    self.on('initialize', () => {
      var header = getDom(options.html(options));
      var close_link = header.querySelector('.' + options.closeClass);

      if (close_link) {
        close_link.addEventListener('click', evt => {
          preventDefault(evt, true);
          self.close();
        });
      }

      self.dropdown.insertBefore(header, self.dropdown.firstChild);
    });
  }

  return plugin;

}));
//# sourceMappingURL=dropdown_header.js.map