[docs]defhover_tool(find_item_and_handle_at_point:Callable[[GtkView,Pos],Union[tuple[Item,Union[Handle,None]],tuple[None,None]]]=default_find_item_and_handle_at_point,)->Gtk.EventController:"""Highlight the currently hovered item."""ctrl=Gtk.EventControllerMotion.new()ctrl.connect("motion",on_motion,find_item_and_handle_at_point)ctrl.cursor_name=""returnctrl