text: function setupImageDragAndDrop(element) {
    element.codemirror.on('drop', function(data, e) {
      var file;
      var files;
      // Check if files were dropped
      files = e.dataTransfer.files;
      if (files.length > 0) {
        e.preventDefault();
        e.stopPropagation();
        file = files[0];
  
        if (file && (file.type === "image/png" || file.type === "image/jpeg")) {
          var reader = new FileReader();
          reader.addEventListener("load", function () {
            $.post(
                window.application_root_path + 'markdown_images/',
                reader.result,
                function(image_url) {
                  element.value(element.value() + "![](" + image_url + ")");
                }
            );
          }, false);
          reader.readAsDataURL(file);
        }
        return false;
      }
    });
  }
  