Cookies have been cleared many times, without any success ;-)
But I found out what is "causing" (directly or indirectly) the problem:
In the page that includes the ajax button that is used to bring up the modal
window, there is a <wicket:head> section at the top of the page.
If I remove this <wicket:head> section, there is no problem with the modal
window anymore.
The page globally looks like:
<html>
<head>
...
</head>
<body>
<wicket:head>...</wicket:head>
<wicket:extend>
....
</wicket:extend>
</body>
</html>
Somehow, I've noticed that including the <wicket:head> triggers an
additional HTTP request to the same URL (that is, the URL to display the
above page).
Dunno why this is happening but the end result is that the pagemap then
contains 2 versions for the same page ID.
Then, when I hit the button that brings up the modal window, the framework
is trying to access the above page, version 0. This has the effect of
putting that page's version at the top of the pagemap's access stack
(PageMap.access() method). By doing this, the version 1 of the page is
removed from the access stack, but also the page itself (call to
PageMap.remove(Page)).
Thus, once the modal window gets closed and the original page needs to be
rendered, we get a page expired since it was removed from the cache.
That's as far as I can describe what I've seen & understood tracing the
code.
I'm not sure where the problem lies: second request because of the
<wicket:head> or incorrectly evicting the page.
Maybe there is something funky in my own code but I don't see what. Or maybe
there is an issue here.
Any input would be helpful at this point.
Thanks!
Laurent.
_____
From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
Sent: mercredi 18 juillet 2007 8:50
To: [EMAIL PROTECTED]; wicket-user@lists.sourceforge.net
Subject: Re: [Wicket-user] Modal Window and "Page Expired".
On 7/13/07, Laurent Brucher <[EMAIL PROTECTED]> wrote:
Hi all,
There was a post last December about the same problem that I'm facing right
now, which is getting a page expired error page after I close a modal
window.
The post was called "Firefox and ModalWindow" and seemed to talk about the
issue for FF only.
I've encountered the problem first with FF (2.0.0.4). After reading the
post, I tried with IE7 and it worked ok (that was this afternoon).
This evening, neither IE7 or FF work anymore. Darn! Clearing cookies and
stuff don't change a thing.
Oh, and of course, the Ajax ModalWindow example works just fine (my code is
heavily inspired from that example)...
I'm using Wicket 1.2.6, Tomcat 5.5.20, Jdk1.6u2.
Have you guys shed any light on this issue at all?
I've tried to trace the code, but as I'm rather new to Wicket, I couldn't
really figure out what's going on...
Anything I can do to help address this?
i wonder, clear cookies in firefox and try again. i know there was a similar
problem if you didnt set the cookie name in the modal window using
setcookiename(), but looks like you did that. still, try clearing the
cookies.
-igor
Below is the code I use, just in case.
Reagrds,
Laurent.
// Page containing the modal window
public class MainPage extends WebPage {
public MainPage()
{
...
add( new PreferredStationsDialog("prefStationsDialog") );
...
}
}
// The modal window impl.
public class PreferredStationsDialog extends ModalWindow {
public PreferredStationsDialog(String id)
{
super(id);
setTitle("xyz");
setCookieName("prefStationsDialog");
setPageMapName("prefStationsDialogPageMap");
setPageCreator( new ModalWindow.PageCreator() {
@Override
public Page createPage() {
return new
PreferredStationsDialogPage(PreferredStationsDialog.this);
}
});
setCloseButtonCallback(new ModalWindow.CloseButtonCallback() {
public boolean onCloseButtonClicked(AjaxRequestTarget target) {
return true;
}
});
}
}
// The content of the modal window, as a Page
public class PreferredStationsDialogPage extends WebPage
{
public PreferredStationsDialogPage( final PreferredStationsDialog dialog
)
{
super();
add( new AjaxLink("button.save") {
@Override
public void onClick(AjaxRequestTarget target) {
dialog.close(target);
}
}.add( new Label("text", "Save")) );
add( new AjaxLink("button.cancel" ) {
@Override
public void onClick(AjaxRequestTarget target) {
dialog.close(target);
}
}.add( new Label("text", "Cancel")) );
}
}
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