AccordionLayoutContainer

[madmaxmatze]

I'm not sure if the AccordionLayout is still under development - errors included, or if I'm using it totally wrong:

--------------------------------

When I create an AccordionLayout like in
gxt-3.0.0-dp5\examples-src\com\sencha\gxt\explorer\client\layout\AccordionLayoutExample.java
and add it to the west panel of a BorderLayoutContainer, I see the Accordion but I get the following error:

00:16:20,256 [ERROR] Uncaught exception escaped
java.lang.NullPointerException: null 	
at com.sencha.gxt.widget.core.client.container.BorderLayoutContainer.onInsert(BorderLayoutContainer.java:693) 
at com.sencha.gxt.widget.core.client.container.Container.insert(Container.java:380)
at com.sencha.gxt.widget.core.client.container.BorderLayoutContainer.setWestWidget(BorderLayoutContainer.java:370)

----------------------------------

When I later add any other ContentPanel to the Accordion with: [..] con.add(cp5);

Caused by: java.lang.AssertionError: Method must be called before the widget is rendered
at com.sencha.gxt.widget.core.client.Component.assertPreRender(Component.java:1175)
at com.sencha.gxt.widget.core.client.ContentPanel.setCollapsible(ContentPanel.java:348)
at com.sencha.gxt.widget.core.client.container.AccordionLayoutContainer.onInsert(AccordionLayoutContainer.java:206)
at com.sencha.gxt.widget.core.client.container.Container.insert(Container.java:380)
at com.sencha.gxt.widget.core.client.container.InsertResizeContainer.insert(InsertResizeContainer.java:22)
at com.sencha.gxt.widget.core.client.container.Container.add(Container.java:86)

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Furthermore I couldn't figure out how to get the ChildWidgetIndex of the current expanded child.

[sven]

I think your BorderLayoutContainer problem is related to this one which is already fixed: http://www.sencha.com/forum/showthre...dget(Widget-w)

[madmaxmatze]

Adding layout data to my uibinder definition as in http://www.sencha.com/learn/ext-gwt-...with-uibinder/

Did not fix the problem. But hopefully the next release will. What's about the other 2 questions?

[sven]

Did not fix the problem. But hopefully the next release will.

In that case can you please provide a fully working testcase implementing EntryPoint that shows your problem?

[sven]

Furthermore I couldn't figure out how to get the ChildWidgetIndex of the current expanded child.

There is a getter to get the currently active widget. That one you can pass to the getWidgetIndex method

[madmaxmatze]

When I create a simple example, the problem is fixed with adding BorderLayoutData as suggested in the other bug report:

BorderLayoutContainer container = new BorderLayoutContainer();

AccordionLayoutContainer con = new AccordionLayoutContainer();
con.setFill(true);
 
ContentPanel cp = new ContentPanel();
cp.setAnimCollapse(false);
cp.setHeadingText("Online Users");
con.add(cp);
con.setWidget(cp);
   
BorderLayoutData northLayoutData = new BorderLayoutData(100);
container.setNorthWidget(con, northLayoutData);
    
RootLayoutPanel.get().clear();
RootLayoutPanel.get().add(container);

So it seems that adding BorderLayoutData is not fixing this issue when working with uibinder. My code:

<ui:with type="com.sencha.gxt.widget.core.client.container.BorderLayoutContainer.BorderLayoutData" field="westLayoutData" />

<gxtContainer:BorderLayoutContainer>
[..]
	<gxtContainer:west layoutData="{westLayoutData}">
	</gxtContainer:west>
[..]
</gxtContainer:BorderLayoutContainer>

and

@UiField(provided = true)
BorderLayoutData westLayoutData = new BorderLayoutData(100);

----------------------

Regarding the other issue, can you tell me how the getter is called. I see nothing like .getActiveWidget()


BTW: Thank for the very fast and nice support!

[sven]

Regarding the other issue, can you tell me how the getter is called. I see nothing like .getActiveWidget()

Its called getWidget

[madmaxmatze]

Thanks for the getWidget() hint - works!

The other issue is now gone as well. I didn't realized that even with uibinder the BorderLayoutData has to be passed with the container.setNorthWidget() call and not just in the XML.

The last remaining issue, from my initial questions was: java.lang.AssertionError: Method must be called before the widget is rendered
The error happens when I add new Content Panels to the accordion after the according was already created. This is my code:

ContentPanel cp1 = new ContentPanel(appearance);
cp1.setAnimCollapse(false);
cp1.setHeadingText("Test");
accordionContainer.add(cp1);
accordionContainer.setWidget(cp1);

[madmaxmatze]

To test the last issue, please use the following code: (Error occures with click on button)

public class Designer implements EntryPoint {
	public void onModuleLoad() {
		BorderLayoutContainer container = new BorderLayoutContainer();
		container.setWidth(500);
		container.setHeight(500);
		
		final AccordionLayoutContainer con = new AccordionLayoutContainer();
		con.setFill(true);
		 
		ContentPanel cp = new ContentPanel();
		cp.setHeadingText("Test 1");
		con.add(cp);
		con.setWidget(cp);
		
		Button b = new Button("Press here to add a new item to the accordion");
		b.addClickHandler(new ClickHandler () {
			@Override
			public void onClick(ClickEvent event) {
				ContentPanel cp1 = new ContentPanel();
				cp1.setHeadingText("Test " + (con.getWidgetCount() + 1));
				con.add(cp1);
				con.setWidget(cp1);
			}
		});
		
		BorderLayoutData northLayoutData = new BorderLayoutData(100);
		container.setWestWidget(con, northLayoutData);
		container.setCenterWidget(b, northLayoutData);
		
		RootLayoutPanel.get().clear();
		RootLayoutPanel.get().add(container);
	}
}

[Pro1712]

Same problem in 3.0.1!
Is there a fix or workaround?