cirandas.net

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if (typeof loading_overlay === 'undefined') {

// block user actions while making a post. Also indicate the network transaction
loading_overlay = {

  show: function (selector) {
    var element = jQuery(selector);
    if (element.length > 0) {
      var overlay = jQuery('<div>', {
        class: 'loading-overlay',
        css: {
          width: element.outerWidth(),
          height: element.outerHeight(),
          left: element.position().left,
          top: element.position().top,
          marginLeft: parseFloat(element.css('margin-left')),
          marginTop: parseFloat(element.css('margin-top')),
          marginRight: parseFloat(element.css('margin-right')),
          marginBottom: parseFloat(element.css('margin-bottom')),
        },
      }).appendTo(element).get(0);

      overlay.dest = element;
      element.loading_overlay = overlay;
    }
  },

  hide: function (selector) {
    var element = jQuery(selector);
    var overlay = element.find('.loading-overlay');
    overlay.remove();
  },

};

}