mixin @beta Efl.Ui.Focus.Composition requires Efl.Ui.Widget {
   [[This defines the inheriting widget as Composition widget.

     A composition widget is a widget that's the logical parent of another set of widgets
     which can be used for interaction.
   ]]
   methods {
      @property composition_elements @protected  {
         [[Set the order of elements that will be used for composition

           Elements of the list can be either an @Efl.Ui.Widget, an @Efl.Ui.Focus.Object or an @Efl.Gfx.Entity.

           If the element is an @Efl.Ui.Widget nothing is done and the widget is simply part of the order.

           If the element is an @Efl.Ui.Focus.Object, then the mixin will take care of registering the element.

           If the element is an @Efl.Gfx.Entity, then the geometry is used as focus geometry,
           the focus property is redirected to the evas focus property. The mixin will take care of registration.
         ]]
         values {
            logical_order : list<Efl.Gfx.Entity> @move; [[The order to use]]
         }
      }
      dirty @protected {
         [[Mark this widget as dirty, the children can be considered to be changed after that call
         ]]
      }
      prepare @protected {
         [[A call to prepare the children of this element, called if marked as dirty

           You can use this function to call composition_elements.
         ]]
      }
      @property logical_mode @protected {
         [[Set to true if all children should be registered as logicals]]
         values {
            logical_mode : bool; [[$true or $false]]
         }
      }
   }
   implements {
      Efl.Object.invalidate;
      Efl.Ui.Widget.focus_state_apply;
      Efl.Ui.Focus.Object.setup_order_non_recursive;
      @empty .prepare;
   }
}