/**
* Tom Select v2.5.2
* Licensed under the Apache License, Version 2.0 (the "License");
*/

/**
 * 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;
};

/**
 * 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({
    className: 'clear-button',
    title: 'Clear All',
    role: 'button',
    tabindex: 0,
    html: data => {
      return `<div class="${data.className}" title="${data.title}" role="${data.role}" tabindex="${data.tabindex}">&times;</div>`;
    }
  }, userOptions);
  self.on('initialize', () => {
    var button = getDom(options.html(options));
    button.addEventListener('click', evt => {
      if (self.isLocked) return;
      self.clear();
      if (self.settings.mode === 'single' && self.settings.allowEmptyOption) {
        self.addItem('');
      }
      self.refreshOptions(false);
      evt.preventDefault();
      evt.stopPropagation();
    });
    self.control.appendChild(button);
  });
}

export { plugin as default };
//# sourceMappingURL=plugin.js.map
