Hi Prashant,
I did try to follow your instructions and added styles to my content
container. I replaced the old view with a <g:FlowPanel/>. but
unfortunately, I cant see the content update on screen. Only the
Header and footer are displayed.
In the appController class, inside the valueChanged method, I added
the code like this -
@Override
public void onValueChange(ValueChangeEvent<String> event) {
String token = event.getValue();
if (token != null) {
Presenter presenter = null;
HasWidgets outer = this.container;
if (token.equals("main")) {
if (wrapper == null) {
wrapper = new WrapperView();
ContainerSegment.HEADER =
wrapper.getHeaderContainer();
ContainerSegment.CONTENT =
wrapper.getContentContainer();
ContainerSegment.FOOTER =
wrapper.getFooterContainer();
new WrapperPresenter(new
WrapperView()).go(container);
System.out.println("Initial Screen
Created!!!");
}
presenter = new SearchPresenter(eventBus, new
SearchView());
outer = wrapper.getContentContainer();
}
if (presenter != null) {
presenter.go(outer);
System.out
.println("Content Area is going
to refresh with search Widget");
}
}
}
I verified that the correct go method is being called. Also, the outer
container actually contains the Content panel <div> and also the
actual SearchView content is getting added to the container.
Any hint why I might not be able to get a refresh?
On Feb 19, 9:39 am, Prashant Hegde <[email protected]> wrote:
> I am using a similar strategy and it works just fine. I suspect it may
> be a problem with your DockLayoutPanel sizing. Please check if the sizes
> are 100%, also give the panel a border for debugging to see how your
> layout looks...
>
> If it helps, I have listed my UiBinder file.
>
> <ui:style>
> .layout {
> border-width:1px;
> border-style:solid;
> width: 100%;
> height: 100%;
>
> }
>
> .mainlayout {
> width: 100%;
> height: 100%;
> position:relative;
> top:2em;
> left: 2em;
> }
> </ui:style>
> <g:DockLayoutPanel styleName='{style.mainlayout}' unit='EM'>
> <g:north size='2' unit="EM">
> <g:FlowPanel ui:field="header"/>
> </g:north>
> <g:center>
> <g:ScrollPanel styleName='{style.layout}'>
> <g:FlowPanel ui:field="content"/>
> </g:ScrollPanel>
> </g:center>
> <g:south size="1" unit="EM">
> <g:FlowPanel ui:field="footer"/>
> </g:south>
> </g:DockLayoutPanel>
> </ui:UiBinder>
>
> -- Prashant
>
> On 19-02-2010 09:50, digitalsam007 wrote:
>
> > Hello,
>
> > I have been trying to implement the MVP pattern in my new GWT app. I
> > have followed the Contacts example app and it seems to be quite
> > straightforward. In there, the controller passes the root
> > panel(container) to every presenter in its go method. And these
> > presenters add the respective view(Display) to the container.
>
> > However, in my case I have to use a template with Header, footer,
> > Navigation and Content. Something quite similar to the Mail sample app
> > found in the GWT SDK. I tried to create a wrapper view class and its
> > corresponding Presenter and included all the 4 diffrent views viz
> > header, footer, nav and content in it ( WrapperView.ui.xml).
>
> > I provided extra methods in the WrapperView that can return HasWidgets
> > for each of the segments in the page like this -
>
> > HasWidgets getHeaderContainer()
> > HasWidgets getContentContainer()
> > HasWidgets getFooterContainer()
> > HasWidgets getNavContainer()
>
> > In the WrapperView.ui.xml , i added a dockLayoutPanel which inturn
> > contains each of these containers ( each container elemensta re in
> > turn SimplePanel components which contains the actual widgets for
> > Header, footer...etc)
>
> > <g:DockLayoutPanel unit='EM'>
> > <g:north size='5'>
> > <miab:HeaderContainerView ui:field='headerContainer' />
> > </g:north>
> > <g:center>
> > <miab:ContentContainerView ui:field='contentContainer' />
> > </g:center>
> > <g:south size="2">
> > <miab:FooterContainerView ui:field='footerContainer' />
> > </g:south>
> > </g:DockLayoutPanel>
>
> > So, the first time when the module loads and the AppController.go
> > method is invoked I trigget the history with a new tocket eg Home.
> > This invokes the valueChanged method and in that I create the
> > WrapperView (if not already created; yes i maintain a reference to
> > this object in AppController) and present it on screen. Then, I call
> > the views getContentContainer method and try to add the content
> > directly to that in another presenter. I do not pass the topmost
> > container this time.
>
> > Logically it should work and the content area must be refreshed with
> > the respective Views when diffrent presenter presents it. But
> > unfortunately I cannot achieve what I want to yet. So, could anyone of
> > you provide me with some ideas or may share with me the best way of
> > achieving this usecase?
>
> > Any help in this regard will be highly appreciated
>
> > Regards
>
> > Sam
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