This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
The only controls that support HTML (after a fashion) are text controls. Make your item renderer one of those and you'll get this behaviour. Otherwise you'll need to handle the user input yourself accordingly.