Re: Transmitting a javascript-value to the server using JSON

[Kalle Korhonen <ka...@gmail.com>]

What's the closest equivalent of T4's EventListener in T5? You can do
ActionLink with zone and @OnEvent on the server, but what I loved about T4's
EventListener was that you could hook an arbitrary Javascript call to a
server side operation with one annotation. I have a case where I'd like to
do communicate in the background from plain Javascript rather than "click a
link".

Kalle


On Tue, Aug 5, 2008 at 3:30 PM, Toby Hobson <to...@googlemail.com>wrote:

> Does anyone know if something similar is available (or planned) for T5?
>
> Toby
>
> 2008/8/5 Thiago Henrique de Carvalho <ka...@gmail.com>
>
> > Hi,
> >
> > Take a look at @EventListener annotation. Docs show example of
> transmiting
> > JSON from page to Tapestry.
> >
> > Thiago
> >
> > -----Mensagem original-----
> > De: Peer Brink [mailto:peerbrink@gmail.com]
> > Enviada em: terça-feira, 5 de agosto de 2008 06:41
> > Para: users@tapestry.apache.org
> > Assunto: Transmitting a javascript-value to the server using JSON
> >
> > Hello,
> >
> > I try to transmit the users/browsers timezone-offset to the server.
> > The timeZone-offset can easily be retrieved by
> >
> > <script type="text/javascript">
> > var offset = new Date().getTimezoneOffset();
> > </script>
> >
> > But how can it be transmitted? Could this be done using a JSONObject
> > by adding "Object.toJSON(offset);"?
> >
> > I found quite some conversations in the mailing-list about
> > JSON-communication but they are all about transmitting data in the
> > other direction (server to client).
> >
> > Where would the code go in the html-source and what java-code is
> > needed to receive the value on the server-side?
> >
> > Or is there a complete other way to get this value?
> >
> > Sorry for this rookie-question. But I am not too familiar with
> > java-script and JSON.
> >
> > Thanks for any help,
> > Peer.
> >
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>

Re: Transmitting a javascript-value to the server using JSON

[Kalle Korhonen <ka...@gmail.com>]

Well well, looks like Chenillekit's OnEvent is pretty close to what I want.
I think you still got to make your Javascript thing a component though, but
otherwise it functions similarly to T4's EventListener.

Kalle


On Sat, Jan 17, 2009 at 9:46 AM, Kalle Korhonen
<ka...@gmail.com>wrote:

> On Sat, Jan 17, 2009 at 6:55 AM, Thiago H. de Paula Figueiredo <
> thiagohp@gmail.com> wrote:
>
>> Em Sat, 17 Jan 2009 01:56:08 -0300, Kalle Korhonen <
>> kalle.o.korhonen@gmail.com> escreveu:
>>
>>> ActionLink with zone and @OnEvent on the server, but what I loved about
>>> T4's EventListener was that you could hook an arbitrary Javascript call to a
>>> server side operation with one annotation. I have a case where I'd like
>>> to do communicate in the background from plain Javascript rather than "click
>>> a link".
>>>
>> What's the closest equivalent of T4's EventListener in T5? You can do
>>
>> Have you tried to generate the link though LinkFactory and use it in your
>> Javascript code?
>>
>
> Yes, that'd be a bit better though still not quite the same as the
> EventListener. But at least I can stick that link directly into my
> Javascript that way I think, thanks.
>
> Kalle
>

Re: Transmitting a javascript-value to the server using JSON

[Kalle Korhonen <ka...@gmail.com>]

On Sat, Jan 17, 2009 at 6:55 AM, Thiago H. de Paula Figueiredo <
thiagohp@gmail.com> wrote:

> Em Sat, 17 Jan 2009 01:56:08 -0300, Kalle Korhonen <
> kalle.o.korhonen@gmail.com> escreveu:
>>
>> ActionLink with zone and @OnEvent on the server, but what I loved about
>> T4's EventListener was that you could hook an arbitrary Javascript call to a
>> server side operation with one annotation. I have a case where I'd like to
>> do communicate in the background from plain Javascript rather than "click a
>> link".
>>
> What's the closest equivalent of T4's EventListener in T5? You can do
>
> Have you tried to generate the link though LinkFactory and use it in your
> Javascript code?
>

Yes, that'd be a bit better though still not quite the same as the
EventListener. But at least I can stick that link directly into my
Javascript that way I think, thanks.

Kalle

Re: Transmitting a javascript-value to the server using JSON

["Thiago H. de Paula Figueiredo" <th...@gmail.com>]

Em Sat, 17 Jan 2009 01:56:08 -0300, Kalle Korhonen  
<ka...@gmail.com> escreveu:

> What's the closest equivalent of T4's EventListener in T5? You can do
> ActionLink with zone and @OnEvent on the server, but what I loved about  
> T4's EventListener was that you could hook an arbitrary Javascript call  
> to a
> server side operation with one annotation. I have a case where I'd like  
> to do communicate in the background from plain Javascript rather than  
> "click a link".

Have you tried to generate the link though LinkFactory and use it in your  
Javascript code?

-- 
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago

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