[jira] Resolved: (WICKET-2489) need to know if a component has been added to the AjaxRequestTarget

["Juergen Donnerstag (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-2489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Juergen Donnerstag resolved WICKET-2489.
----------------------------------------

    Resolution: Fixed

> need to know if a component has been added to the AjaxRequestTarget
> -------------------------------------------------------------------
>
>                 Key: WICKET-2489
>                 URL: https://issues.apache.org/jira/browse/WICKET-2489
>             Project: Wicket
>          Issue Type: Wish
>          Components: wicket
>    Affects Versions: 1.4.1
>            Reporter: Joe Hudson
>            Assignee: Igor Vaynberg
>             Fix For: 1.5-M1, 1.4.2
>
>
> We need to evaluate the AjaxRequestTarget to determine if a component has been directly added (as opposed to the component rendering because of a parent component being added).  This is useful for applying markup wrapping through the use of behaviors.  This is required because, on a ajax request - and if the component that has the markup wrapping behavior was added directly to the AjaxRequestTarget, the markup provided with the behavior will be duplicated.  We currently have a workaround but it required the use of a custom AjaxRequestTarget:
> public class AjaxRequestTarget extends org.apache.wicket.ajax.AjaxRequestTarget {
> 	private Map<String, Boolean> addedComponents = new HashMap<String, Boolean>();
> 	public AjaxRequestTarget(Page page) {
> 		super(page);
> 	}
> 	@Override
> 	public void addComponent(Component component) {
> 		addedComponents.put(component.getMarkupId(), Boolean.TRUE);
> 		super.addComponent(component);
> 	}
> 	public boolean wasComponentAdded(Component component) {
> 		return (null != addedComponents.get(component.getMarkupId()));
> 	}
> }
> It would be nice if the Wicket AjaxRequestTarget had a method (the name of the method name doesn't really matter and is just for example purposes) like the following:
> public boolean wasComponentAdded(Component component) {
> 	return (null != markupIdToComponent.get(component.getMarkupId());
> }

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