On Sunday, January 5, 2014 2:31:45 AM UTC+1, Magnus wrote: > > Hi Thomas! > > > Since this seems more like a WindowBuilder question than a specific GWT >>> Designer question, I would recommend asking at the Eclipse forums linked >>> above. >>> >> >> Actually, no. The error comes from UiBinder and more precisely the custom >> parser for DockLayoutPanel. >> > > Ok, so it's definitely an error? Not a wanted behavior that I do not know? > > >> Generally speaking, you shouldn't extend existing widgets but rather >> compose/wrap them within Composite or IsWidget. >> > > Why? > > Besides Portal I also have a subclass ListPortal and several subclasses, > e. g. GameListPortal, AnnouncementListPortal, etc... > > What would be a reason that the GUI tool makes requirements on the class > hierarchy? I would expect such a tool to take my classes as some subclasses > of some base class, e. g. UIObject. Why does the tool care about the > intermediate classes? >
UiBinder has a custom element parser for DockLayoutPanel, and that parser mandates a unit="" attribute and unconditionally instantiate the class with its constructor taking a Unit. It doesn't look for subclasses (except for special-casing SplitLayoutPanel) and whether they have such a constructor. Feel free to propose a patch. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
