On Tue, Jun 17, 2014 at 4:00 PM, Martin Grigorov <mgrigo...@apache.org> wrote: > Hi, > > > On Tue, Jun 17, 2014 at 4:55 PM, Daniel Stoch <daniel.st...@gmail.com> > wrote: > >> Hi, >> >> I have a link (or ajax link) which executes some system command. This >> system gives me an information if this command is enabled or not, so I >> can mark my link as enabled or disabled (by calling >> setEnabled(command.isEnabled()) or overriding link.isEnabled() >> method). >> >> 1. Page is being rendered, command is enabled so link is rendered as >> enabled. >> 2. In the meantime system state is changed so command became disabled. >> 3. User clicks link on a page rendered in step 1 where link is >> rendered as enabled but it is disabled now. >> >> In Wicket 1.4 nothing happens in such situation and only warning was >> logged: >> "component not enabled or visible; ignoring call. Component: >> [MarkupContainer [Component id = link]]" >> >> In Wicket 6 in such situation the exception is raised: >> "ListenerInvocationNotAllowedException: Behavior rejected interface >> invocation." >> >> How should I handle this correctly to show some information to user, >> that this is link is no longer active (but user should stay on the >> same page)? >> Should I catch ListenerInvocationNotAllowedException inside >> IRequestCycleListener.onException()? >> > > Yes. This is the best you can do in this case. >
Thanks for very fast answer :) But what should I return as a IRequestHandler in IRequestCycleListener.onException()? I can return EmptyRequestHandler to silently catch an exception, but if I want show some info to user then...? --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
