Re: Hyperlink/Anchors: Passing data in Places

On Thursday, June 7, 2012 4:43:40 PM UTC+2, Shaun Tarves wrote:

Hi Thomas -

I went down the road of the PlaceHyperlink [trying to create as extension of Hyperlink with a method setDestination(Place)]. My intention was that PlaceHyperlink could be used in UIBinder, and my presenters wouldn't all need to pass through a PlaceHistoryMapper.

I have GIN set up, so I'm trying to inject my PlaceHistoryMapper into my PlaceHyperlink (as a field injection - to avoid the missing no-arg constructor problem), but no dice. That PHM is always null (although it works fine in other places when constructor-injected).

I don't totally understand why this doesn't work. Any thoughts how to implement a PlaceHyperlink with UIBinder and GIN?

You can either use a @UiFactory or use @UiField(provided=true) in your views (but that's a lot of boilerplate) or use a static field and requestStaticInjection(PlaceHyperlink.class) in your GinModule. I don't quite like it but it works, and I've been using it for the past year on a few widgets (particularly SuggestBox-like widgets, providing them the RequestFactory).

There's an issue on the tracker about making UiBinder more GIN-friendly but that's not an easy patch…

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