text: //////////////////////////////////////////////////////////////////////////////////////////
  //        ___            _     ___                                                      //
  //        |   |   \/    | ) |  |           This software may be modified and distri-    //
  //    O-  |-  |   |  -  |   |  |-  -O      buted under the terms of the MIT license.    //
  //        |   |_  |     |   |  |_          See the LICENSE file for details.            //
  //                                                                                      //
  //////////////////////////////////////////////////////////////////////////////////////////
  
  'use strict';
  
  const Gio = imports.gi.Gio;
  
  const _ = imports.gettext.domain('flypie').gettext;
  
  const Me                  = imports.misc.extensionUtils.getCurrentExtension();
  const utils               = Me.imports.src.common.utils;
  const ItemRegistry        = Me.imports.src.common.ItemRegistry;
  const ConfigWidgetFactory = Me.imports.src.common.ConfigWidgetFactory.ConfigWidgetFactory;
  
  //////////////////////////////////////////////////////////////////////////////////////////
  // The command actions executes a shell command when activated. This can be used to     //
  // launch any application installed in the $PATH.                                       //
  // See common/ItemRegistry.js for a description of the action's format.                 //
  //////////////////////////////////////////////////////////////////////////////////////////
  
  var action = {
  
    // There are two fundamental item types in Fly-Pie: Actions and Menus. Actions have an
    // onSelect() method which is called when the user selects the item, Menus can have
    // child Actions or Menus.
    class: ItemRegistry.ItemClass.ACTION,
  
    // This will be shown in the add-new-item-popover of the settings dialog.
    name: _('Launch Application'),
  
    // This is also used in the add-new-item-popover.
    icon: 'flypie-action-command-symbolic-#444',
  
    // Translators: Please keep this short.
    // This is the (short) description shown in the add-new-item-popover.
    subtitle: _('Runs any shell command.'),
  
    // This is the (long) description shown when an item of this type is selected.
    description: _(
        'The <b>Launch Application</b> action executes any given command. This is primarily used to open applications but may have plenty of other use cases as well.'),
  
    // Items of this type have an additional text configuration parameter which represents
    // the command to execute.
    config: {
      // This is used as data for newly created items of this type.
      defaultData: {command: ''},
  
      // This is called whenever an item of this type is selected in the menu editor. It
      // returns a Gtk.Widget which will be shown in the sidebar of the menu editor. The
      // currently configured data object will be passed as first parameter and *should* be
      // an object containing a single "command" property. To stay backwards compatible with
      // Fly-Pie 4, we have to also handle the case where the command is given as a simple
      // string value. The second parameter is a callback which is fired whenever the user
      // changes something in the widgets.
      getWidget(data, updateCallback) {
        let command = '';
        if (typeof data === 'string') {
          command = data;
        } else if (data.command != undefined) {
          command = data.command;
        }
  
        return ConfigWidgetFactory.createCommandWidget(
            _('Command'), _('Use the button to list installed apps.'), command,
            (command, name, icon) => {
              updateCallback({command: command}, name, icon);
            });
      }
    },
  
    // This will be called whenever a menu is opened containing an item of this kind.
    // The data parameter *should* be an object containing a single "command" property.
    // To stay backwards compatible with Fly-Pie 4, we have to also handle the case
    // where the command is given as a simple string value.
    createItem: (data) => {
      let command = '';
      if (typeof data === 'string') {
        command = data;
      } else if (data.command != undefined) {
        command = data.command;
      }
  
      // The onSelect() function will be called when the user selects this action.
      return {
        onSelect: () => {
          try {
            const ctx  = global.create_app_launch_context(0, -1);
            const item = Gio.AppInfo.create_from_commandline(
                command, null, Gio.AppInfoCreateFlags.NONE);
            item.launch([], ctx);
          } catch (error) {
            utils.debug('Failed to execute command: ' + error);
          }
        }
      };
    }
  };