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https://issues.apache.org/jira/browse/WICKET-4408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502911#comment-13502911
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Chris Colman commented on WICKET-4408:
--------------------------------------
While in the early comments in WICKET-2238 explain the reasoning behind why it
doesn't work the later comments explain how it could be fixed and then explains
that it was in fact fixed in 1.5. Does that mean 6.x has regressed this fix?
> Components resolved by an IComponentResolver fail to contribute to header via
> renderHead
> ----------------------------------------------------------------------------------------
>
> Key: WICKET-4408
> URL: https://issues.apache.org/jira/browse/WICKET-4408
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.5.4
> Environment: Happens on all FireFox Chrome, IE
> Windows XP
> Reporter: Chris Colman
> Assignee: Igor Vaynberg
> Labels: wicket
>
> If a component is resolved via an IComponentResolver implementation then its
> overridden renderHead method never gets called.
> If the same component is added explicitly to its parent then its renderHead
> method is called.
> This is critical for us because we have markup variations that may or may not
> include certain panels. We thus leave the construction/adding of these panels
> to our IComponentResolver implementation because we can't explicitly add them
> because not all markup will require all panels.
> Class MyPanel extends Panel
> {
> /**
> * Write out necessary header markup.
> */
> @Override
> public void renderHead(IHeaderResponse response)
> {
> StringBuffer sb = new StringBuffer();
>
> sb.append("<script src=\"/jquery.easing.1.3.min.js\"></script>");
> sb.append("<script src=\"/trans-banner.min.js\"></script>");
>
> response.renderString(sb.toString());
> }
> }
> We aren't using any markup inheritance at the panel level.
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