(function ($, Drupal, settings) {
  Drupal.behaviors.showLanguageImg = {
    attach: function (context) {
      $('.language_header', context).once('language_header').each(function () {
        $('.language_header', context).hover(function (){
          var list = $('.language_list li img');
          list.each(function (item,index){
            let ele = $(this);
            if(!ele.attr('src')){
              ele.attr('src',ele.data('src'))
            }
          })
        })

        $('.language_header', context).click(function (){
          var list = $('.language_list li img');
          list.each(function (item,index){
            let ele = $(this);
            if(!ele.attr('src')){
              ele.attr('src',ele.data('src'))
            }
          })
        })
      })
    }
  }

})(jQuery, Drupal, drupalSettings);