Re: redirect from ajax request
To be specific, when during an Ajax request the component even returns a page class or page instance, Tapestry builds and returns a Link as part of the JSON response, the the client-side loads that Link's URL into the browser address, performing a redirect. There are two implementations of ComponentEventResultProcessor, one for @Traditional and one for @Ajax ... just bear that in mind if you want to read the existing code, or extend the current behavior. They are both based on a mapped configuration from return type to a handler. On Sun, Aug 9, 2009 at 5:34 PM, Thiago H. de Paula Figueiredothiag...@gmail.com wrote: Em Sat, 08 Aug 2009 15:26:45 -0300, Mario Rabe mario.r...@googlemail.com escreveu: Hi, Hi! how can I do a redirect from a XHR-request? Here an example to make clear what I want to do: If it was a Tapestry-provided event, you could just return a page instance, a page class, an URL or a page name in an event handler method. Looking at the Form component sources, it uses this callback instance in its VALIDATE_FORM event: ComponentResultProcessorWrapper callback = new ComponentResultProcessorWrapper(componentEventResultProcessor); componentEventResultProcessor comes from an environmental service: @Environmental private ComponentEventResultProcessor componentEventResultProcessor; Try using the above callback and please post the results. :) -- Thiago H. de Paula Figueiredo Independent Java consultant, developer, and instructor http://www.arsmachina.com.br/thiago - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org -- Howard M. Lewis Ship Creator of Apache Tapestry Director of Open Source Technology at Formos - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: redirect from ajax request
Actually its was pretty easy (like most things I try to do with tapestry) as
soon as I understand the concept. Simply getting the
current ComponentEventResultProcessor from the Environment, wrap it in case
of exceptions and let it process the return-value. It is really as easy as
this, EXCEPT you use the processor AND return a value after that.
This way I managed it to have 2 json-objects in the response which made
tapestry.js really mad =D
{redirectURL:/TapTestReal/about}{content:And another counter: 11}
public class Counter {
@InjectComponent
private Zone countzone;
@Inject
private ComponentResources componentResources;
@Environmental
private ComponentEventResultProcessor componentEventResultProcessor;
@Property
@Persist
private int count;
private Object fireValueChanged() throws IOException {
ComponentResultProcessorWrapper callback = new
ComponentResultProcessorWrapper(componentEventResultProcessor);
componentResources.triggerEvent(valueChanged, new Object[]{new
Integer(count)}, callback);
if (!callback.isAborted()) {
return countzone.getBody();
}
return null;
}
public Object onUp() throws IOException {
count++;
return fireValueChanged();
}
public Object onDown() throws IOException {
count--;
return fireValueChanged();
}
public Object onReset() throws IOException {
count = 0;
return fireValueChanged();
}
public String getZoneId(){
return countzone.getClientId(); //with this I can use this
component multiple times on a single page even with ajax enabled
}
}
I cutted some pieces of code which implement features not used in this
context, hopefully it still compiles. That component can be used on a page
like:
Object onValueChangedFromEggCounter(int value){
if(value 10)
return ToMuchEggs.class;
return null;
}
and everything works like expected (if counter reaches 11 you are redirected
to another page).
- Mario
2009/8/10 Howard Lewis Ship hls...@gmail.com
To be specific, when during an Ajax request the component even returns
a page class or page instance, Tapestry builds and returns a Link as
part of the JSON response, the the client-side loads that Link's URL
into the browser address, performing a redirect.
There are two implementations of ComponentEventResultProcessor, one
for @Traditional and one for @Ajax ... just bear that in mind if you
want to read the existing code, or extend the current behavior. They
are both based on a mapped configuration from return type to a
handler.
On Sun, Aug 9, 2009 at 5:34 PM, Thiago H. de Paula
Figueiredothiag...@gmail.com wrote:
Em Sat, 08 Aug 2009 15:26:45 -0300, Mario Rabe
mario.r...@googlemail.com
escreveu:
Hi,
Hi!
how can I do a redirect from a XHR-request? Here an example to make
clear
what I want to do:
If it was a Tapestry-provided event, you could just return a page
instance,
a page class, an URL or a page name in an event handler method.
Looking at the Form component sources, it uses this callback instance in
its
VALIDATE_FORM event:
ComponentResultProcessorWrapper callback = new
ComponentResultProcessorWrapper(componentEventResultProcessor);
componentEventResultProcessor comes from an environmental service:
@Environmental
private ComponentEventResultProcessor componentEventResultProcessor;
Try using the above callback and please post the results. :)
--
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
--
Howard M. Lewis Ship
Creator of Apache Tapestry
Director of Open Source Technology at Formos
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
Re: redirect from ajax request
Em Sat, 08 Aug 2009 15:26:45 -0300, Mario Rabe mario.r...@googlemail.com escreveu: Hi, Hi! how can I do a redirect from a XHR-request? Here an example to make clear what I want to do: If it was a Tapestry-provided event, you could just return a page instance, a page class, an URL or a page name in an event handler method. Looking at the Form component sources, it uses this callback instance in its VALIDATE_FORM event: ComponentResultProcessorWrapper callback = new ComponentResultProcessorWrapper(componentEventResultProcessor); componentEventResultProcessor comes from an environmental service: @Environmental private ComponentEventResultProcessor componentEventResultProcessor; Try using the above callback and please post the results. :) -- Thiago H. de Paula Figueiredo Independent Java consultant, developer, and instructor http://www.arsmachina.com.br/thiago - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
redirect from ajax request
Hi,
how can I do a redirect from a XHR-request? Here an example to make clear
what I want to do:
I've got a couter-component which shows a count and 2 links (up and down).
If a link is clicked, the count is changed inPlace. A ValueChanged-Event
is triggered on every change.
[Pseudo-Code. won't compile, just to show the intention]
class Counter{
@Property private int count;
EventCallback callback = new EventCallback(){
boolean handleEvent(...){
...
}
};
onUp(){
count++;
resources.triggerEvent(valueChanged, new Object[]{count},
callback);
}
onDown(){
count--;
resources.triggerEvent(valueChanged, new Object[]{count},
callback);
}
}
That counter can be used on pages and the page can do something if user
changes value.
class CounterPage{
Object onValueChangeFromMyCounter(int count){
if(count Oracle.MYSTICAL_VALUE){
System.secretOperation();
}
}
}
Now my question is how to do a page-redirect in the EventListener on the
page? I can return an URL from it but to do with it in the callback? Which
service is responsible? And does tapestry.js handle redirects in
XHR-requests as W3C-XHR doesn't?
Greetings
Mario
