[jira] Resolved: (WICKET-2678) isEnabled called in AjaxRequestTarget for Behaviors even if component is not Visible in hierarchy

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

     [ https://issues.apache.org/jira/browse/WICKET-2678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Juergen Donnerstag resolved WICKET-2678.
----------------------------------------

       Resolution: Fixed
    Fix Version/s: 1.5-M1
                   1.4.6
         Assignee: Juergen Donnerstag

thanks

>  isEnabled called in AjaxRequestTarget for Behaviors even if component is not Visible in hierarchy
> --------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-2678
>                 URL: https://issues.apache.org/jira/browse/WICKET-2678
>             Project: Wicket
>          Issue Type: Sub-task
>          Components: wicket
>    Affects Versions: 1.4.5
>            Reporter: Martin Makundi
>            Assignee: Juergen Donnerstag
>             Fix For: 1.4.6, 1.5-M1
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> AjaxRequestTarget calls isEnabled for behaviors even if the related component is not visible in hierarchy.
> Exlpicit problems: hide using ajax a panel containing datefield having datepicker behavior and the javascript will crash in browser. Mozilla will survive but ie8 will not execute ajaxpostcallhandlers.
> Following code should probably call component.isVisibleInHierarchy instead of just isVisible:
> public class AjaxRequestTarget implements IPageRequestTarget
> {
> ...
> 		if (component instanceof MarkupContainer)
> 		{
> 			((MarkupContainer)component).visitChildren(new Component.IVisitor<Component>()
> 			{
> 				public Object component(Component component)
> 				{
> 					if (component.isVisible())
> 					{
> 						component.renderHead(header);
> 						return CONTINUE_TRAVERSAL;
> 					}

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