Custom menu item

tinymce.init({
  selector: 'textarea#custom-menu-item',
  height: 500,
  toolbar: false,
  menubar: 'custom',
  menu: {
    custom: { title: 'Custom menu', items: 'basicitem nesteditem toggleitem' }
  },
  setup: function (editor) {
    var toggleState = false;

    editor.ui.registry.addMenuItem('basicitem', {
      text: 'My basic menu item',
      onAction: function () {
        editor.insertContent('<p>Here\'s some content inserted from a basic menu!</p>');
      }
    });

    editor.ui.registry.addNestedMenuItem('nesteditem', {
      text: 'My nested menu item',
      getSubmenuItems: function () {
        return [
          {
            type: 'menuitem',
            text: 'My submenu item',
            onAction: function () {
              editor.insertContent('<p>Here\'s some content inserted from a submenu item!</p>');
            }
          }
        ];
      }
    });

    editor.ui.registry.addToggleMenuItem('toggleitem', {
      text: 'My toggle menu item',
      onAction: function () {
        toggleState = !toggleState;
        editor.insertContent('<p class="toggle-item">Here\'s some content inserted from a toggle menu!</p>');
      },
      onSetup: function (api) {
        api.setActive(toggleState);
        return function () {};
      }
    });
  },
  content_style: 'body { font-family:Helvetica,Arial,sans-serif; font-size:14px }'
});