On 30 nov, 22:39, Dalla <dalla_man...@hotmail.com> wrote: > I´ve been working on some small projects using GWT 1.6.4 and 1.7.1. > I know alot of people tried their best to pick up on Ray Ryans "GWT > Best practice" from Google IO 2009, > where using MVP was one of the main guidelines. > > I recently started looking at GWT RC1 and the new UiBinder. > Using the UiBinder it seems like the only way to handle events from > the components defined > are to handle them with the @UiHandler annotation inside the view > class. > This seems to move things away from MVP, at least the way I learned, > or did I miss something here?
You can very well just have your components have a ui:field attribute, with the corresponding @UiField-annotated field on your View class, and then return the component from a getter method (defined on the Display interface implemented by the View); then on your presenter, call the addXXXHandler to add your event handler. That's what we're doing for 2 months now (as soon as 2.0 MS1 were available) and it works very well. > What are your thoughts on this? There was a discussion some weeks ago about optimization of handlers and implementing them all in one inner-class instead of using multiple anonymous classes (one at each addXXXHandler call point generally), and some one (Ray Ryan?) responded that UiBinder's @UiHandler could do this automatically (in the future), or could even come with something even more optimized, so that if you really wanted to optimize your code you'd rather use @UiHandler than creating such an inner class by hand. Now, that effectively doesn't fit very well with Ray's presentation at I/O, but it still puts layout management out of your view (java code; pun intended) and pushed in to the ui.xml file; so, the ui.xml would somehow be the view and the java class that calls it via UiBinder the presenter. But this effectively defeats unit testing using mocks such as with EasyMock. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
