HI,
I'm doing something similar in my application - but instead of passing
presenters through the event content, I'm only passing the widgets
which should be shown in the main UI area. I've one central presenter
(like e.g. AppPresenter) which listens to this event and if thrown
reorganises the UI.
Here's the code from the main presenter:
/*
* Subscribing for the UIChangedEvent
*/
eventBus.addHandler(UIChangedEvent.TYPE, new
UIChangedEventHandler()
{
@Override
public void onUIChange(UIChangedEvent event) {
reorganizeUI(event);
}
});
/**
* Method which takes the given widget and places it as the main
content
* (removing the old one)
*
* @param ui2Show
*/
private void reorganizeUI(UIChangedEvent e) {
if (mainContent != null)
dockLayout.remove(mainContent);
ScrollPanel sp = new ScrollPanel();
VerticalPanel wrapper = new VerticalPanel();
sp.add(wrapper);
wrapper.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_RIGHT);
DecoratedTabPanel tab = new DecoratedTabPanel();
tab.setAnimationEnabled(true);
tab.add(e.getUi2Show(), e.getEventName());
wrapper.add(tab);
wrapper.add(e.getControls());
mainContent = sp;
tab.selectTab(0);
dockLayout.add(mainContent);
fadeEffect.setEffectElement(mainContent.getElement());
fadeEffect.play();
}
HTH,
Lukasz
On 12 Jan., 15:42, mariyan nenchev <nenchev.mari...@gmail.com> wrote:
> Hi,
>
> i am having difficulties making my views to switch.
> Here is my code:
> Here is my hierarchy of presenters: AppPresenter, that contains
> HeaderPresenter and BodyPresenter:
>
> public class AppPresenter extends
> WidgetContainerPresenter<AppPresenter.Display> {
>
> public interface Display extends WidgetContainerDisplay {
>
> }
>
> @Inject
> public AppPresenter(Display display, EventBus bus,HeaderPresenter
> header, BodyPresenter body) {
> super(display,bus, header, body);
> }
>
> }
>
> HeaderPresenter and BodyPresenter will never be changed.
>
> public class BodyPresenter extends
> WidgetContainerPresenter<BodyPresenter.Display> {
>
> public interface Display extends WidgetContainerDisplay {
>
> }
>
> @Inject
> public BodyPresenter(Display display, EventBus eventBus,
> LeftMenuPresenter menu, ContentPresenter content) {
> super(display, eventBus, menu, content);
> }
>
> }
>
> BodyPresenter contains LeftMenuPresenter and ContentPresenter
> And ContentPresenter must switch different presenters in it when something
> is picked from the left menu(or some buttons in the header are clicked).
>
> public class ContentPresenter extends
> WidgetContainerPresenter<ContentPresenter.Display> {
>
> public interface Display extends WidgetContainerDisplay {
>
> }
> private MyDefaultPresenter dPresenter;
>
> @Inject
> public ContentPresenter(Display display, EventBus eventBus,
> MyDefaultPresenter dPresenter) {
> super(display, eventBus, dPresenter);
> this.dPresenter =dPresenter;
>
> }
>
> @Override
> protected void onBind() {
> super.onBind();
> registerHandler(eventBus.addHandler(PresenterChangedEvent.getType(),
> new PresenterChangedHandler() {
> @Override
> public void onPresenterChanged(PresenterChangedEvent event) {
> Debugger.log("receive PresenterChangedEvent");
>
> ContentPresenter.this.setCurrentPresenter((WidgetPresenter<?>)
> event.getPresenter());
> }
> }));
> }
>
> }
>
> The PresenterChangedEvent is fired onClick event from the menu or header
> links/buttons, but nothing happens.
> And i had to pass my other presenters in the Header or LeftMenuPresenter,
> which is not quite right, they should all be passed to the ContentPresenter
> and somehow swich on event.
>
> Any ideas?
>
> Regards.
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