Function on_visible 

pub fn on_visible(
    child: impl IntoUiNode,
    handler: Box<dyn FnMut(&()) -> HandlerResult + Send>,
) -> UiNode

P Widget visibility changed to visible.

See on_visibility_changed for a more general visibility event.

Note that widgets are visible by default, so this will not notify on init.

Route

This event property uses a direct route, that is, it cannot be intercepted in parent widgets.