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    Default [FIXED] Beta4 - Show method on Dialog object throws exception

    [FIXED] Beta4 - Show method on Dialog object throws exception


    Hello,

    In the process of upgrading from beta3 to beta4, I ran into a bug when the show method is called on the Dialog class. To verify with a simple case, I created a new GWT module and tried to replicate the bug using only the Dialog example from the Ext GWT Explorer examples. I successfully replicated the bug. See the sample code below.

    The show method of the simple Dialog object is called when the "Simple" button's SelectionListener componentSelected method is called. When the show method is called the following exception is thrown:

    [ERROR] Uncaught exception escaped
    java.lang.AssertionError: Method must be called before the component is rendered
    at com.extjs.gxt.ui.client.widget.Component.assertPreRender(Component.java:1063)
    at com.extjs.gxt.ui.client.widget.ContentPanel.setFooter(ContentPanel.java:541)
    at com.extjs.gxt.ui.client.widget.ContentPanel.onRender(ContentPanel.java:766)
    at com.extjs.gxt.ui.client.widget.Window.onRender(Window.java:764)
    at com.extjs.gxt.ui.client.widget.Dialog.onRender(Dialog.java:218)
    at com.extjs.gxt.ui.client.widget.Component.render(Component.java:736)
    at com.extjs.gxt.ui.client.widget.Component.onAttach(Component.java:1131)
    at com.extjs.gxt.ui.client.widget.Container.onAttach(Container.java:307)
    at com.google.gwt.user.client.ui.Widget.setParent(Widget.java:231)
    at com.google.gwt.user.client.ui.Panel.adopt(Panel.java:119)

    Any ideas on how to fix this? It is a show stopper for our upgrade since we do utilize the Dialog Class quite a bit.


    Thanks,
    -Danny

    Sample Code:

    public class Play extends LayoutContainer implements EntryPoint {

    public void onModuleLoad() {
    RootPanel.get().add(this);
    }

    @Override
    protected void onRender(Element parent, int pos) {
    super.onRender(parent, pos);
    final Dialog simple = new Dialog();
    simple.setHeading("Dialog Test");
    simple.setButtons(Dialog.YESNO);
    simple.addText("some stuff");
    simple.setScrollMode(Scroll.AUTO);
    simple.setHideOnButtonClick(true);

    final Dialog complex = new Dialog();
    complex.setBodyBorder(false);
    complex.setInsetBorder(false);
    complex.setButtons(Dialog.OK);
    complex.setIconStyle("icon-app-side");
    complex.setHeading("BorderLayout Dialog");
    complex.setWidth(400);
    complex.setHeight(225);
    complex.setHideOnButtonClick(true);

    BorderLayout layout = new BorderLayout();
    complex.setLayout(layout);

    // west
    ContentPanel panel = new ContentPanel();
    panel.setHeading("West");
    BorderLayoutData data = new BorderLayoutData(LayoutRegion.WEST, 150, 100, 250);
    data.setMargins(new Margins(0, 5, 0, 0));
    data.setSplit(true);
    data.setCollapsible(true);
    data.setFloatable(true);
    panel.setData(data);
    complex.add(panel);

    // center
    panel = new ContentPanel();
    panel.setHeading("West");
    data = new BorderLayoutData(LayoutRegion.CENTER);
    panel.setData(data);
    complex.add(panel);

    ButtonBar buttons = new ButtonBar();

    buttons.add(new Button("Simple", new SelectionListener() {
    public void componentSelected(ComponentEvent ce) {
    simple.show();
    }
    }));

    buttons.add(new Button("Layout", new SelectionListener() {
    public void componentSelected(ComponentEvent ce) {
    complex.show();
    }
    }));

    add(buttons);
    setLayout(new FlowLayout(4));
    layout();
    }

    }

  2. #2
    Sencha - GXT Dev Team darrellmeyer's Avatar
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