/*
 * Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 * Copyright [2016-2021] EMBL-European Bioinformatics Institute
 *
 * 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 ($) {
  $.fn.externalLinks = function () {
    return this.each(function() {
      $(this)
        .find('a[rel!=external][rel!=notexternal][target!=_blank][href^="http"]:not(:empty):not(:has(img))')
        .filter(function () {
          return this.hostname !== window.location.hostname;
        }).attr('rel', 'external');
    });
  };
})(jQuery);
