Question

I am constructiong an webapp with Google Web Toolkit using GWT-Platform and GWT-Bootstrap frameworks. Mostly it has been almost flawless until I tried to implement a popup. These frameworks’ undestanding of popups seems to be quite different.

GWT-Platform expects a popup widget itself to be an instance of com.google.gwt.user.client.ui.PopupPanel when using the GWTP’s RevealRootPopupContentEvent.fire(source, content) or a presenter’s addToPopupSlot(child) method.

GWT-Bootstrap’s Modal is used like any other widget that is added to the underlying panel but my goal is it to have a separate presenter and view and to possibly fetch it asynchrously with AsyncProvider.

I have tried to make it as a PresenterWidget and using addToSlot(slot, content) to reveal it but it doesn’t look quite right. Not all of the styles are applied this way and the close icon (×), doesn’t work for example.

I think I am not the first one trying to do something like that so maybe someone has figured out a proper way to make it work.

Thanks!

Answer 1

You have to create a view:

public class MyPopupView extends PopupViewImpl implements MyView {

    protected Widget widget;

    public interface MyPopupViewUiBinder extends
            UiBinder<Widget, MyPopupView> {
    }

    @UiField(provided = true)
    Modal dialogBox;

    private MyPresenter presenter;

    @Inject
    public MyPopupView(final MyPopupViewUiBinder uiBinder,
            final EventBus eventBus) {
        super(eventBus);
        setUpDialog(); // Provides UiField => Before initWidgets
        initWidget(uiBinder.createAndBindUi(this));
    }

    // DialogBox must be overridden to let the presenter handle changes onUnload
    private void setUpDialog() {
        dialogBox = new Modal() {

            @Override
            protected void onUnload() {
                MyPopupView.this.hide();
            }
        };

        dialogBox.setTitle("Some title");
    }

    @Override
    public void setPresenter(final MyPresenter presenter) {
        this.presenter = presenter;
    }

    @Override
    public final void hide() {
        dialogBox.hide();
        presenter.hide();
    }

    @Override
    public void setAutoHideOnNavigationEventEnabled(final boolean autoHide) {
        // TODO Auto-generated method stub
    }

    @Override
    public void setCloseHandler(
            final PopupViewCloseHandler popupViewCloseHandler) {
        // TODO Auto-generated method stub
    }

    @Override
    public void setPosition(final int left, final int top) {
        // TODO Auto-generated method stub
    }

    @Override
    public void show() {
        dialogBox.show();
    }

    @Override
    public void center() {
        dialogBox.show();
    }

    @Override
    public Widget asWidget() {
        return widget;
    }

    protected final void initWidget(final Widget widget) {
        this.widget = widget;
    }

}

And a UIBinder file:

<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
    xmlns:g='urn:import:com.google.gwt.user.client.ui'
    xmlns:b='urn:import:com.github.gwtbootstrap.client.ui'>

    <b:Modal title="Some Title" ui:field="dialogBox">
        <!-- Your content -->
    </b:Modal>
</ui:UiBinder>