Wicket extracts this information just once - when you see the
BrowserInfoPage, the one with the message "If you see this, it means
that both javascript and meta-refresh are not support by your browser
configuration"
After that this info is cached at the server side in the Session.
You can use Ajax timer behavior that can send you the latest state at
the client side (height, width, ...). If the client disables
JavaScript then this behavior will stop sending this info, i.e. you
will know that JS is disabled if you don't receive new data for
duration bigger than the timer's update duration.
2012/4/1 Andre Schütz <andre-p...@gmx.de>:
> Hello,
>
> thank you for the information. I have two further questions that
> are of importance for me.
>
> (1)
> I have Javascript enabled in Opera and Firefox. I tested the two
> following client information:
>
> Method -> result in my logs
> isJavaEnabled -> false
> isCookiesEnabled -> true
>
> (a) I disabled Javascript in the browsers and got:
>
> (Method -> result in my logs)
> isJavaEnabled -> false
> isCookiesEnabled -> true
>
> (b) I deleted the browser cache and the session:
>
> (Method -> result in my logs)
> isJavaEnabled -> false
> isCookiesEnabled -> true
>
> Why did the methods still deliver these values? There was no
> Javascript enabled to check for these value.
>
> (2)
> Additionally, I checked the value of getBrowserHeight. I got the
> following results:
>
> (a) Javascript disabled
>
> getBrowserHeight -> -1
>
> (b) Javascript enabled
>
> getBrowserHeight -> -1
>
> (c) Delete browser cache and session
>
> getBrowserHeight -> 840
>
> Is it possible to detect the change of the Javascript functionality
> in the same session?
>
> (3)
> Regarding question (1). If the getClientInfo() and the properties
> methods always deliver a result, how do I check for Javascript correctly?
> This is important for me because of an AjaxSelfUpdatingBehavior which
> does not work without enabled Javascript.
>
> Thank you for your answers.
> Andre
>
> On Sat, 31 Mar 2012 23:17:20 +0200
> Martin Grigorov <mgrigo...@apache.org> wrote:
>
>> The method says "Java", not "JavaScript".
>> The page that extracts the extra info uses JavaScript to do that, so
>> it is enabled.
>>
>> 2012/3/31 Andre Schütz <wic...@faustas.de>:
>> > Hello,
>> >
>> > I use wicket 1.5.4 or 1.5.5 with Opera and Firefox. I checked with
>> > the following lines:
>> >
>> > Application:
>> > -------------
>> > protected void init() {
>> > super.init();
>> > getRequestCycleSettings().setGatherExtendedBrowserInfo(true);
>> > ...
>> > }
>> >
>> > MyWebPage:
>> > -------------
>> > WebSession session = WebSession.get();
>> > if (session.getClientInfo().getProperties().isJavaEnabled()) {
>> > System.out.println("enabled");
>> > }
>> > else {
>> > System.out.println("disabled");
>> > }
>> >
>> > With Opera 11.62 or Firefox 11 I always get "disabled". I checked the
>> > settings and Javascript is enabled in both browsers.
>> >
>> > Additionally, I tried the website:
>> > http://wicketstuff.org/wicket/hellobrowser/howdy
>> >
>> > The same result. JavaEnabled = false.
>> >
>> > Any ideas?
>> >
>> > --
>> > Andre Schütz <wic...@faustas.de>
>> >
>> > ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>> > For additional commands, e-mail: users-h...@wicket.apache.org
>> >
>>
>>
>>
>> --
>> Martin Grigorov
>> jWeekend
>> Training, Consulting, Development
>> http://jWeekend.com
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
> --
> Andre Schütz <schuetz.an...@gmx.net>
>
> ---------------------------------------------------------------------
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>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
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