GWT in Action, Second Edition

3.5. Manipulating the page

You can manipulate the browser page in one of two ways. The preferred way is to treat it as a panel—where GWT looks after you a lot—or via the DOM directly—the Wild West approach. We’ll look at both of these in this section, starting with the preferred approach.

3.5.1. Using the RootPanel/RootLayoutPanel

Manipulating the browser page to show your widgets is surprisingly easy, and you already know how to do that. The HTML page is generally treated as a panel—the RootPanel—and you use that panel’s add method.

 

Definition

The RootPanel provides access to the underlying HTML page.

 

You can’t create a RootPanel in your code; rather you get access to it by calling Root-Panel’s static get method. Accessing the ...