private void conditionallySetLoginCallback(LoginPage login, IPage page, IRequestCycle cycle) {
// If page service is calling page, you're probably logged out and user could be
// looking at a very different page then what gets interpretted from this callback
// because all session data is lost.
//
// If your page can safely handle this, consider refactoring border component to accept a
// component parameter to circumvent this constraint. Warning: this means your page
// either doesn't use session variabled OR can safely recover when session is lost
//
String serviceName = cycle.getService().getName();
if (Tapestry.EXTERNAL_SERVICE.equals(serviceName)) {
ICallback callback =
new ExternalCallback((IExternalPage) page, cycle.getListenerParameters());
login.setCallback(callback);
}
}
