and what if you need to know javascript support when rendering the first page as you often do?
the solution we have is generic and works well. it may not be optimal for everyone, so of course you are welcome to roll your own. -igor On Fri, May 29, 2009 at 10:56 AM, Cristi Manole <[email protected]> wrote: > I don't remember now exactly so i'm just typing whatever i think it's ok, > but on some project we checked some javascript related stuff using something > like the following > > on html > <script type="text/javascript" > > function callWicket() { > wicketAjaxGet(callback + '¶meter=value', function() {}, function() > {}); > } > </script> > > where callback is an extends AbstractDefaultAjaxBehaviour that if it gets > called, you have js, > > dummyDiv.add(new AjaxSelfUpdatingTimerBehavior(Duration.seconds(whatever)) { > �...@override > protected void onPostProcessTarget(AjaxRequestTarget target) { > target.appendJavascript("callWicket();"); > } > }); > dummyDiv.add(behavior); > > We got rid of the div through ajax after being used. if js is not enabled, I > wouldn't have the self updating timer doing anything in the first place. > > Maybe it's stupid, maybe it's too much but it worked for us, without any > redirect, without showing anything to the user. And once you have it in a > component, I don't care about it, just dumb it to the page. > > Cristi Manole > > On Fri, May 29, 2009 at 2:39 PM, Igor Vaynberg <[email protected]>wrote: > >> thats exactly what the redirect page does.... >> >> you can of course implement the check yourself but you need to know >> that on server side so it has to be submitted somehow. >> >> -igor >> >> On Fri, May 29, 2009 at 10:36 AM, Cristi Manole <[email protected]> >> wrote: >> > In order to have something like that, I have to specifically mention >> > something in my WebApplication class, right (if i remember correctly) ? >> And >> > I think the way wicket works for browser extend is to redirect to some >> page >> > where it reads this info. I think it's too much just to see the support >> for >> > js. >> > >> > Why not go the easy way and have some kind of html tag that holds a value >> > like x. Through javascript I change that value like y. I tie that with a >> > wicket:id to read it. If it's x, I have js. >> > >> > Or what i'm saying is not valid? >> > >> > Cristi Manole >> > >> > On Fri, May 29, 2009 at 1:14 PM, Igor Vaynberg <[email protected] >> >wrote: >> > >> >> you can ask wicket to figure out if the browser supports javascript or >> not, >> >> see >> >> >> >> >> getApplication().getRequestCycleSettings().setGatherExtendedBrowserInfo() >> >> >> >> the way the fallback button works is that it is a regular button and >> >> we use javascript to override the default behavior - thus if no >> >> javascript is there then nothing is overridden and the button works >> >> like a regular button instead of ajax. >> >> >> >> -igor >> >> >> >> On Fri, May 29, 2009 at 4:51 AM, yong mook kim <[email protected]> >> >> wrote: >> >> > >> >> > hi, >> >> > >> >> > Thanks, i agree with your point. However what i want is a browser's >> >> javascript detect function, if isJavascriptEnable() then load the >> >> LazyLoadPanel else fall back to normal panel behaviour. >> >> > >> >> > something like below >> >> > >> >> > Page start.... >> >> > >> >> > if(isJavascriptEnable()){ >> >> > add(new AjaxLazyLoadPanel('123')... >> >> > }else{ >> >> > add(new ABCPanel('123').... >> >> > } >> >> > >> >> > Page end.... >> >> > >> >> > I wonder how Wicket AjaxFallBackButton work........? >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > --- On Fri, 5/29/09, Martijn Dashorst <[email protected]> >> >> wrote: >> >> > >> >> >> From: Martijn Dashorst <[email protected]> >> >> >> Subject: Re: AjaxLazyLoadPanel fallback version? >> >> >> To: [email protected] >> >> >> Date: Friday, May 29, 2009, 7:26 AM >> >> >> It's called Panel. Either your users >> >> >> have to have javascript enabled >> >> >> and you can use LazyLoadPanel, or you have to use direct >> >> >> Panel's. >> >> >> >> >> >> There is no way to lazy load anything without having to >> >> >> resort to >> >> >> JavaScript. Think about it. How could you instruct the >> >> >> browser to >> >> >> retrieve and replace a part of your page after a given >> >> >> time? >> >> >> >> >> >> The only thing that comes to mind is using iframes. >> >> >> >> >> >> Martijn >> >> >> >> >> >> On Fri, May 29, 2009 at 12:09 PM, yong mook kim < >> [email protected]> >> >> >> wrote: >> >> >> > >> >> >> > Hi, >> >> >> > >> >> >> > When browser's Javascript is disabled, >> >> >> AjaxLazyLoadPanel's image (wicket ajax deafult image) will >> >> >> keep loading forever, page will not return. Is there a >> >> >> AjaxLazyLoadPanel fallback version which will delegate to >> >> >> normal request if javascript is disabled? >> >> >> > >> >> >> > I wonder how Wicket detect the browser's javascript is >> >> >> disabled? Thanks >> >> >> > >> >> >> > regards >> >> >> > yong >> >> >> > >> >> >> > >> >> >> > >> >> >> > >> >> >> > >> >> >> --------------------------------------------------------------------- >> >> >> > To unsubscribe, e-mail: [email protected] >> >> >> > For additional commands, e-mail: [email protected] >> >> >> > >> >> >> > >> >> >> >> >> >> >> >> >> >> >> >> -- >> >> >> Become a Wicket expert, learn from the best: >> http://wicketinaction.com >> >> >> Apache Wicket 1.3.5 is released >> >> >> Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3. >> >> >> >> >> >> --------------------------------------------------------------------- >> >> >> To unsubscribe, e-mail: [email protected] >> >> >> For additional commands, e-mail: [email protected] >> >> >> >> >> >> >> >> > >> >> > >> >> > >> >> > >> >> > --------------------------------------------------------------------- >> >> > To unsubscribe, e-mail: [email protected] >> >> > For additional commands, e-mail: [email protected] >> >> > >> >> > >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: [email protected] >> >> For additional commands, e-mail: [email protected] >> >> >> >> >> > >> > >> > -- >> > Cristi Manole >> > >> > Nova Creator Software >> > www.novacreator.com >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> >> > > > -- > Cristi Manole > > Nova Creator Software > www.novacreator.com > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
