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Posted to users@wicket.apache.org by Nick Pratt <nb...@gmail.com> on 2013/10/31 20:35:57 UTC
RequestCycle with multiple handlers
Wicket 6.11
I have an AbstractDefaultAjaxBehavior that returns JSON in its protected
void respond( AjaxRequestTarget target ) method by:
requestCycle.scheduleRequestHandlerAfterCurrent( new TextRequestHandler(
"text/plain", "UTF-8", json ) );
This ADAB is used for returning status information back to a client side
Javascript component (FileUploader), and the interoperation of the
Javascript component and Wicket via JSON works.
However, it seems that simple javascript appended to the ART is not being
invoked on the client. Is the scheduleRequestHandlerAfterCurrent() above
replacing the Ajax response that would normally have been sent back to the
client (in this case the Ajax updates - components and javascripts added to
the ART)?
Is there way to return JSON, and also have the ART updates triggered? I'm
not seeing anything in the AjaxDebugger on the client, so it looks like my
simple test alert('here'); is not being sent or interpreted correctly by
the client.
N
Re: RequestCycle with multiple handlers
Posted by Nick Pratt <nb...@gmail.com>.
I figured this out - the handler was being invoked by the JS component in
two different places - one using Wicket.Ajax.get() and the other by direct
jquery Ajax invocation (same callback URL). I swapped out the plain
jQuery invocation for a Wicket.ajax call and everything works as expected.
N
On Thu, Oct 31, 2013 at 5:28 PM, Nick Pratt <nb...@gmail.com> wrote:
> The JS component sends JSON to the server and expects JSON in response. I
> was stepping through the Wicket code, and it looks like I can only invoke
> scheduleRequestHandlerAfterCurrent once since there is only a single 'next'
> variable. Any JS appended to the ART doesn't seem to get executed on the
> client when Im sending the JSON response back. ill keep digging.
>
>
> On Thu, Oct 31, 2013 at 4:35 PM, Ernesto Reinaldo Barreiro <
> reiern70@gmail.com> wrote:
>
>> Hi,
>>
>> Yes I think than when you schedule new request target ajax request target
>> is discarded.
>>
>> I do not know how this component works but maybe you can return your JSON
>> as part as a javaScript eval
>>
>> target.append("myEvalaJSON('JSON'))
>>
>> ?
>>
>>
>> On Thu, Oct 31, 2013 at 8:35 PM, Nick Pratt <nb...@gmail.com> wrote:
>>
>> > Wicket 6.11
>> >
>> > I have an AbstractDefaultAjaxBehavior that returns JSON in its protected
>> > void respond( AjaxRequestTarget target ) method by:
>> >
>> > requestCycle.scheduleRequestHandlerAfterCurrent( new TextRequestHandler(
>> > "text/plain", "UTF-8", json ) );
>> >
>> > This ADAB is used for returning status information back to a client side
>> > Javascript component (FileUploader), and the interoperation of the
>> > Javascript component and Wicket via JSON works.
>> >
>> > However, it seems that simple javascript appended to the ART is not
>> being
>> > invoked on the client. Is the scheduleRequestHandlerAfterCurrent()
>> above
>> > replacing the Ajax response that would normally have been sent back to
>> the
>> > client (in this case the Ajax updates - components and javascripts
>> added to
>> > the ART)?
>>
>>
>> >
>> Is there way to return JSON, and also have the ART updates triggered? I'm
>> > not seeing anything in the AjaxDebugger on the client, so it looks like
>> my
>> > simple test alert('here'); is not being sent or interpreted correctly by
>> > the client.
>> >
>> > N
>> >
>>
>>
>>
>> --
>> Regards - Ernesto Reinaldo Barreiro
>>
>
>
Re: RequestCycle with multiple handlers
Posted by Nick Pratt <nb...@gmail.com>.
The JS component sends JSON to the server and expects JSON in response. I
was stepping through the Wicket code, and it looks like I can only invoke
scheduleRequestHandlerAfterCurrent once since there is only a single 'next'
variable. Any JS appended to the ART doesn't seem to get executed on the
client when Im sending the JSON response back. ill keep digging.
On Thu, Oct 31, 2013 at 4:35 PM, Ernesto Reinaldo Barreiro <
reiern70@gmail.com> wrote:
> Hi,
>
> Yes I think than when you schedule new request target ajax request target
> is discarded.
>
> I do not know how this component works but maybe you can return your JSON
> as part as a javaScript eval
>
> target.append("myEvalaJSON('JSON'))
>
> ?
>
>
> On Thu, Oct 31, 2013 at 8:35 PM, Nick Pratt <nb...@gmail.com> wrote:
>
> > Wicket 6.11
> >
> > I have an AbstractDefaultAjaxBehavior that returns JSON in its protected
> > void respond( AjaxRequestTarget target ) method by:
> >
> > requestCycle.scheduleRequestHandlerAfterCurrent( new TextRequestHandler(
> > "text/plain", "UTF-8", json ) );
> >
> > This ADAB is used for returning status information back to a client side
> > Javascript component (FileUploader), and the interoperation of the
> > Javascript component and Wicket via JSON works.
> >
> > However, it seems that simple javascript appended to the ART is not being
> > invoked on the client. Is the scheduleRequestHandlerAfterCurrent() above
> > replacing the Ajax response that would normally have been sent back to
> the
> > client (in this case the Ajax updates - components and javascripts added
> to
> > the ART)?
>
>
> >
> Is there way to return JSON, and also have the ART updates triggered? I'm
> > not seeing anything in the AjaxDebugger on the client, so it looks like
> my
> > simple test alert('here'); is not being sent or interpreted correctly by
> > the client.
> >
> > N
> >
>
>
>
> --
> Regards - Ernesto Reinaldo Barreiro
>
Re: RequestCycle with multiple handlers
Posted by Ernesto Reinaldo Barreiro <re...@gmail.com>.
Hi,
Yes I think than when you schedule new request target ajax request target
is discarded.
I do not know how this component works but maybe you can return your JSON
as part as a javaScript eval
target.append("myEvalaJSON('JSON'))
?
On Thu, Oct 31, 2013 at 8:35 PM, Nick Pratt <nb...@gmail.com> wrote:
> Wicket 6.11
>
> I have an AbstractDefaultAjaxBehavior that returns JSON in its protected
> void respond( AjaxRequestTarget target ) method by:
>
> requestCycle.scheduleRequestHandlerAfterCurrent( new TextRequestHandler(
> "text/plain", "UTF-8", json ) );
>
> This ADAB is used for returning status information back to a client side
> Javascript component (FileUploader), and the interoperation of the
> Javascript component and Wicket via JSON works.
>
> However, it seems that simple javascript appended to the ART is not being
> invoked on the client. Is the scheduleRequestHandlerAfterCurrent() above
> replacing the Ajax response that would normally have been sent back to the
> client (in this case the Ajax updates - components and javascripts added to
> the ART)?
>
Is there way to return JSON, and also have the ART updates triggered? I'm
> not seeing anything in the AjaxDebugger on the client, so it looks like my
> simple test alert('here'); is not being sent or interpreted correctly by
> the client.
>
> N
>
--
Regards - Ernesto Reinaldo Barreiro