Re: Nested Views in MVP

And if you think, as a lot of people seems to do, that nesting
presenters helps make your app cleaner, then you can look at MVP
solutions built on top of GWT that natively support presenter nesting
such as GWTP:
http://gwtplatform.com

Cheers,

Philippe

On Oct 29, 8:40 am, Thomas Broyer <t.bro...@gmail.com> wrote:
> On 29 oct, 06:52, DrG <drgenejo...@gmail.com> wrote:
>
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> > Hi,
>
> > I have been reading the excellent article at:http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAnd...
>
> > And love the new built in objects that facilitate the MVP design
> > paradigm.  My initial thought is great but how does this system cope
> > with Nested Views or Dock Panel style layouts where various elements
> > can be clicked and the widget that changes isn't necessarily always
> > the center one?
>
> > Looking at the example code given for HelloMVP it looks like when you
> > go to a new Place when the Activity is started by calling the start
> > method a widget is passed in that is the containerWidget or host for
> > that presenter:
>
> >         @Override
> >         public void start(AcceptsOneWidget containerWidget, EventBus
> > eventBus) {
> >                 GoodbyeView goodbyeView = clientFactory.getGoodbyeView();
> >                 goodbyeView.setName(name);
> >                 containerWidget.setWidget(goodbyeView.asWidget());
> >         }
>
> > Looking at the setup code from the onModuleLoad, a root SimplePanel is
> > added to the activity manager:
>
> > activityManager.setDisplay(appWidget);
>
> > This widget is then passed to the start method each time a new place
> > is revealed.  Thus causing a screen refresh?  each time a new place is
> > revealed.
>
> > How would you handle a scenario that has a Left hand menu (like gmail)
> > and a main container.  Where clicking options in the LHS initiates a
> > new widget to be displayed in the center.  Using the current logic it
> > looks like the whole screen is refreshed to show the newly selected
> > menu option and the center widget.  Perhaps it does, and perhaps this
> > is ok, but it sounds hacky.
>
> In addition to David's response, seehttp://tbroyer.posterous.com/gwt-21-activities-nesting-yagni

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