Portlets and gadgets are the two main types of eXo applications. Portlets are user interface components that provide fragments of markup code from the server side, while gadgets generate dynamic web content on the client side.
This chapter includes the following main topics:
Steps to create a gadget, create and apply resources in a gadget, and many methods of customizing a gadget.
Concept and mechanism of UI Extension framework which allows the customization and extensibility of eXo applications through simple plugins.