Vaadin's design is made around a restricted core of features. In order not to bloat this core, additional capabilities are added by third-party modules.
Therefore, beside the preceding elements, there are many more available or that can be developed. In conclusion, it is not because Vaadin does not offer a required feature that it is the end of the road.
In Vaadin, third-party modules are called add-ons. Some are supplied by Vaadin Ltd, but the most part is by others (either individuals or companies).
Vaadin provides an add-on store available online at http://vaadin.com/directory. Anyone, including you, can publish on this directory.
The store provides categorization in order ...