Is there any way to animate .setVisible(false) action with your addon? ;-)
Vaadin does not have visibility listeners for components (you need to remove / add components to get them animated), but it would be nice to have something like that (good idea!).
At the moment compani does not have that funcionality, but I will think about that and opened an issue for future releases [Bitbucket Ticket]
(https://bitbucket.org/mekasorocks/compani/issues/3/add-animations-when-visibility-of-a).
Yes indeed, it will be very useful :-)
available in 1.1.4
Great news! Thank you very much :-)