Custom Composite widget in *.ui.xml

Question

I would like to create a custom GWT composite widget that I can later use this way in *.ui.xml using uiBinder (cw is prefix for my custom widgets package):

<cw:CustomPanel>  
  <cw:header><g:Label>test</g:Label></cw:header>  
  <cw:content><g:Label>test</g:Label></cw:content>  
</cw:CustomPanel>

In short, I would expect that setHeader and setContent methods on my custom widget are called by the framework somehow.

Is that at all possible?

Answer 1

This is what @UiChild is for, see the JavaDoc at http://google-web-toolkit.googlecode.com/svn/javadoc/latest/com/google/gwt/uibinder/client/UiChild.html

If you want to keep the method names setHeader and setContent (instead of addHeader and addContent), you'll have to use

@UiChild(tagname = "header")
void setHeader(Widget headerWidget) {
  ...
}