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:
>
>
>
>
>
>
>
>
>
> > 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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