> We didn't want to expose a setAnimation() method in PopupPanel until > we had time to work out an API that would work for all widgets.
FWIW, I also have a PopupPanel subclass with a custom animation (fading lightbox) squatting in the c.g.g.user.client.ui package to get around this restriction. I'm fine with the squatting highlighting the fact that I'm using a non-public API, but I just thought I'd mention I've hit this custom-animations use case as well. - Stephen -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
