Wicket-Ajax header always false with BaseWicketTester
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Key: WICKET-1066
URL: https://issues.apache.org/jira/browse/WICKET-1066
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.3.0-beta4, 1.3.0-beta3
Reporter: David Shepherdson
The 'Wicket-Ajax' header is always missing when using BaseWicketTester, even
when the request should be an AJAX request.
The specific case we have is an AjaxLink that, when clicked, shows a modal
window. We call BaseWicketTester's clickLink(String) method to simulate
clicking the link. The link's onClick(...) method is called with an appropriate
AjaxRequestTarget; however, ModalWindow's onBeforeRender() tests whether the
request is an AJAX request (using ((WebRequest)getRequest()).isAjax()) and, if
it's not, hides the content panel.
The problem is that the isAjax() call tests whether the HttpServletRequest's
'Wicket-Ajax' header is present and 'true'; when running this code with
BaseWicketTester, the header is never there, and so the modal window's content
is never shown.
We have worked around the problem by overriding clickLink(String, boolean) and
setupRequestAndResponse() as follows:
private boolean m_handlingAjaxRequest = false;
@Override
public synchronized void clickLink(String path, boolean isAjax)
{
m_handlingAjaxRequest = isAjax;
super.clickLink(path, isAjax);
m_handlingAjaxRequest = false;
}
@Override
public synchronized WebRequestCycle setupRequestAndResponse() {
WebRequestCycle result = super.setupRequestAndResponse();
if (m_handlingAjaxRequest) {
// Set AJAX header.
getServletRequest().addHeader(
"Wicket-Ajax", "true");
// *Don't* copy it to the response, even though
// MockWebApplication's setupRequestAndResponse() does.
}
return result;
}
(I found that if I copied the 'Wicket-Ajax' header to the response, as done by
MockWebApplication's setupRequestAndResponse(), it caused all AJAX clicks to
misbehave.)
Hence, it would seem that if BaseWicketTester's clickLink(String, boolean)
method were modified to set the 'Wicket-Ajax' header as appropriate, modal
windows -- and, presumably, any other things that rely on the request returning
true from isAjax() -- would work as expected.
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