vartheme_bs4-8.x-6.10/js/misc/theme.js

/**
 * @file
 * Theme hooks for the Drupal Bootstrap base theme.
 */
(function ($, Drupal, Bootstrap, Attributes) {

  /**
   * Fallback for theming an icon if the Icon API module is not installed.
   */
  if (!Drupal.icon) Drupal.icon = { bundles: {} };
  if (!Drupal.theme.icon || Drupal.theme.prototype.icon) {
    $.extend(Drupal.theme, /** @lends Drupal.theme */ {
      /**
       * Renders an icon.
       *
       * @param {string} bundle
       *   The bundle which the icon belongs to.
       * @param {string} icon
       *   The name of the icon to render.
       * @param {object|Attributes} [attributes]
       *   An object of attributes to also apply to the icon.
       *
       * @returns {string}
       */
      icon: function (bundle, icon, attributes) {
        if (!Drupal.icon.bundles[bundle]) return '';
        attributes = Attributes.create(attributes).addClass('icon').set('aria-hidden', 'true');
        icon = Drupal.icon.bundles[bundle](icon, attributes);
        return '<span' + attributes + '></span>';
      }
    });
  }

  /**
   * Callback for modifying an icon in the "bootstrap" icon bundle.
   *
   * @param {string} icon
   *   The icon being rendered.
   * @param {Attributes} attributes
   *   Attributes object for the icon.
   */
  Drupal.icon.bundles.varicon = function (icon, attributes) {
    attributes.addClass(['varicon', 'varicon-' + icon]);
  };

  /**
   * Add necessary theming hooks.
   */
  $.extend(Drupal.theme, /** @lends Drupal.theme */ {

    /**
     * Renders a Bootstrap AJAX glyphicon throbber.
     *
     * @returns {string}
     */
    ajaxThrobber: function () {
      return Drupal.theme('varthemeIcon', 'refresh', {'class': ['ajax-throbber', 'varicon-spin'] });
    },

    /**
     * Renders a glyphicon.
     *
     * @param {string} name
     *   The name of the glyphicon.
     * @param {object|Attributes} [attributes]
     *   An object of attributes to apply to the icon.
     *
     * @returns {string}
     */
    varthemeIcon: function (name, attributes) {
      return Drupal.theme('icon', 'varicon', name, attributes);
    }

  });

})(window.jQuery, window.Drupal, window.Drupal.bootstrap, window.Attributes);