Re: @BeginRender equivalent for component AJAX events
The ZoneRefresh mixin fires the refresh event passing the (optional)
context parameter.
So, add a handler to the containing page / component.
Eg: void onRefresh(Foo context) {...}
If you return a Block, this will be rendered (zone.getBody() renders by
default).
Re: @BeginRender equivalent for component AJAX events
Thanks, Lance, that looks like it will do the trick nicely.
Do you think that the 'refresh' event should be added to the ZoneRefresh
mixin's documentation? Is this public/won't change, or a gory internal
detail?
On 24 April 2013 04:47, Lance Java lance.j...@googlemail.com wrote:
The ZoneRefresh mixin fires the refresh event passing the (optional)
context parameter.
So, add a handler to the containing page / component.
Eg: void onRefresh(Foo context) {...}
If you return a Block, this will be rendered (zone.getBody() renders by
default).
Re: @BeginRender equivalent for component AJAX events
Far from being a gory detail, it's part of the public API for the mixin, very similar to AutoComplete's provideCompletions event. The mixin should ideally declare the event using @Events(refresh) and should have a mention in the javadoc too.
Re: @BeginRender equivalent for component AJAX events
Okay! I've filed it as https://issues.apache.org/jira/browse/TAP5-2111 On 24 April 2013 09:07, Lance Java lance.j...@googlemail.com wrote: Far from being a gory detail, it's part of the public API for the mixin, very similar to AutoComplete's provideCompletions event. The mixin should ideally declare the event using @Events(refresh) and should have a mention in the javadoc too.
Re: @BeginRender equivalent for component AJAX events
One note about ZoneRefresh mixin: https://issues.apache.org/jira/browse/TAP5-2100 So it provides not the original event context(that was encoded in url) but the context populated from parameter. And so it has no sence for now. On Wed, Apr 24, 2013 at 4:21 PM, Michael Prescott michael.r.presc...@gmail.com wrote: Okay! I've filed it as https://issues.apache.org/jira/browse/TAP5-2111 On 24 April 2013 09:07, Lance Java lance.j...@googlemail.com wrote: Far from being a gory detail, it's part of the public API for the mixin, very similar to AutoComplete's provideCompletions event. The mixin should ideally declare the event using @Events(refresh) and should have a mention in the javadoc too. -- BR Ivan
@BeginRender equivalent for component AJAX events
I have a component that includes a zone - the zone is periodically refreshed using the ZoneRefresh mixin. Is there any equivalent to @BeginRender that I can use to set up data to support the zone re-rendering? @BeginRender methods are called when the page renders, but they're not called when the zone re-renders via ajax. The only event I've found that gets called is @PageAttached, but of course this is deprecated. Any tips would be appreciated! Gratefully, Michael
Re: [5.3.6] Listening to native tapestry ajax events
I should try extedning the datefield component but I have a question, is it just about my component class extending tapestry's component class and that's it ? No other wiring needed ? Just a plain java extends and referring to my component instead ? A question to the developers, why isn't tapestry's components events bubbled by default ? Performance issues ? On Sun, Dec 16, 2012 at 5:42 AM, Geoff Callender geoff.callen...@mac.comwrote: This may help: http://localhost:8080/jumpstart/examples/component/eventbubbling Wrong. I meant this: http://jumpstart.doublenegative.com.au/jumpstart/examples/component/eventbubbling
Re: [5.3.6] Listening to native tapestry ajax events
Sorry, I shouldn't have suggested subclassing. The preferred way to extend and/or override a Tapestry component's functionality is to wrap it. If you can't achieve what you want with wrapping then maybe create your own component by copying DateField? It might not be much work. As for your last question, I'll repeat it: A question to the developers, why isn't tapestry's components events bubbled by default ? Performance issues ?. On 17/12/2012, at 3:13 AM, Muhammad Gelbana wrote: I should try extedning the datefield component but I have a question, is it just about my component class extending tapestry's component class and that's it ? No other wiring needed ? Just a plain java extends and referring to my component instead ? A question to the developers, why isn't tapestry's components events bubbled by default ? Performance issues ? On Sun, Dec 16, 2012 at 5:42 AM, Geoff Callender geoff.callen...@mac.comwrote: This may help: http://localhost:8080/jumpstart/examples/component/eventbubbling Wrong. I meant this: http://jumpstart.doublenegative.com.au/jumpstart/examples/component/eventbubbling - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
[5.3.6] Listening to native tapestry ajax events
Some tapestry components do fire ajax events and reach out to the server and it get's handy sometimes to listen to those events. For instance the datefield event fired to format the selected date. Side question, why does the date field have to reach out to the server to format the selected date, can't it be done on the client side ? Any way the main question is, I saw this url being posted using ajax: http://localhost/tests/results.starttime:format?input=135123230 So I tried listening to the format event fired from the starttime component but I got nothing. I thought may be it's the missing context so i added a long parameter to the even method, but it didn't work either. So how I can I, on the server side, listen to the datefield component fired ajax events ? And how can this be done in general since some urls indicate events that aren't actually the events being listened to on the server ! Like the zone refreshing mixin. It fires a zonerefresh event while I could listen to it only through the refresh event. Thank you.
Re: [5.3.6] Listening to native tapestry ajax events
On 16/12/2012, at 10:14 AM, Muhammad Gelbana wrote:
Some tapestry components do fire ajax events and reach out to the server
and it get's handy sometimes to listen to those events. For instance the
datefield event fired to format the selected date. Side question, why does
the date field have to reach out to the server to format the selected date,
can't it be done on the client side ?
From the source code of the DateField component, here is the Format event
handler:
/**
* Ajax event handler, used after the client-side popup completes. The
client sends the date, formatted as
* milliseconds since the epoch, to the server, which reformats it
according to the server side format and returns
* the result.
*/
JSONObject onFormat(@RequestParameter(INPUT_PARAMETER)
String input)
{
JSONObject response = new JSONObject();
try
{
long millis = Long.parseLong(input);
Date date = new Date(millis);
response.put(RESULT, format.format(date));
} catch (NumberFormatException ex)
{
response.put(ERROR, ex.getMessage());
}
return response;
}
Any way the main question is, I saw this url being posted using ajax:
http://localhost/tests/results.starttime:format?input=135123230
So I tried listening to the format event fired from the starttime
component but I got nothing. I thought may be it's the missing context so i
added a long parameter to the even method, but it didn't work either.
So how I can I, on the server side, listen to the datefield component fired
ajax events ? And how can this be done in general since some urls indicate
events that aren't actually the events being listened to on the server !
You can't. As you can see in the source above, DateField handles Format
without bubbling up an event to the container. If you need bubbling up, then
try creating your your component by subclassing DateField and overriding the
above method.
Like the zone refreshing mixin. It fires a zonerefresh event while I
could listen to it only through the refresh event.
From the source code of the ZoneRefresh component, here is the ZoneRefresh
event handler:
Object onZoneRefresh()
{
CaptureResultCallbackObject callback = new
CaptureResultCallbackObject();
resources.triggerEvent(EventConstants.REFRESH, context, callback);
if(callback.getResult() != null){
return callback.getResult();
}
return zone.getBody();
}
As you can see, it bubbles up the REFRESH event.
This may help:
http://localhost:8080/jumpstart/examples/component/eventbubbling
Thank you.
Cheers,
Geoff
Re: [5.3.6] Listening to native tapestry ajax events
This may help: http://localhost:8080/jumpstart/examples/component/eventbubbling Wrong. I meant this: http://jumpstart.doublenegative.com.au/jumpstart/examples/component/eventbubbling
Re: AJAX Events
I feel quite dumb, My issue was simply the capital o on my OnInc method (becoming lazy about case sensitivy in Tapestry :p ). Although, thank you for the requestParameter link! -- View this message in context: http://tapestry.1045711.n5.nabble.com/AJAX-Events-tp2429263p5714109.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: AJAX Events
Sorry to dig out this post, but I'm having the exact same issue. After having a look at : http://samroyale.blogspot.fr/2009/11/controlling-ajax-in-tapestry.html I tried to use this trick, but I failed. In my page.java, I create a link this way: With a simple OnInc method in the same page: Whether I click on the link triggering the event or goes directly to the expected URL of the event, I get the same error message: Does anyone have an idea why I can't manage to access the event? Gep -- View this message in context: http://tapestry.1045711.n5.nabble.com/AJAX-Events-tp2429263p5714097.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: AJAX Events
Have a look at the RequestParameter annotation. On Tue, Jun 26, 2012 at 11:05 AM, Gep gpo...@sopragroup.com wrote: Sorry to dig out this post, but I'm having the exact same issue. After having a look at : http://samroyale.blogspot.fr/2009/11/controlling-ajax-in-tapestry.html I tried to use this trick, but I failed. In my page.java, I create a link this way: With a simple OnInc method in the same page: Whether I click on the link triggering the event or goes directly to the expected URL of the event, I get the same error message: Does anyone have an idea why I can't manage to access the event? Gep -- View this message in context: http://tapestry.1045711.n5.nabble.com/AJAX-Events-tp2429263p5714097.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Ajax events, expired session and @Persist fields
I finally figured out how to handle Ajax events and sessions from the @XHR annotation. It involved Thiago's suggested SessionState object, but as a means of communicating between the annotation worker and the session state tracker. The session state tracker turned out to be pretty complex, unfortunately. I will try to get the results posted on the wiki along with other integrations that I had to go through. Thanks for your help! On Sep 19, 2011, at 1:00 AM, Lenny Primak wrote: I finally had a chance to try these methods, unfortunately with little success. Yes, I can check only one @Persist field for null to see whether the session still exists, which works. Request.getSession(false) does not really work, because a new (empty) session can be created within this request by other parts of the code, which is correct behavior. I tried the @XHR method as well, but I could not get the annotated method not to get invoked at all. Whether I call 'invocation.proceed()' or not, the method would still get invoked and throw NullPointerException. I would love to make @XHR method to work, just not call the Ajax method if any of the @Persist variables are null, but still no luck. Any other ideas? Thanks! On Sep 14, 2011, at 6:19 PM, Thiago H. de Paula Figueiredo wrote: On Wed, 14 Sep 2011 16:25:14 -0300, Lenny Primak lpri...@hope.nyc.ny.us wrote: This is a design/best practices question. We set up @Persist fields inside @SetupRender method. When a session is invalid/expired and an Ajax event is called, All these fields at null. The question is if there is a better way to handle this situation than having to check for Null in every Ajax event method for every @Persist field? You don't need to check all of them, just whether Request.getSession(false) returns null or not. I was thinking that @SetupRender should be called in case of session expiration during Ajax call. I don't like this solution at all, as it uses a component event handler for doing something completely unrelated to rendering. You can even write class transformation to add some logic to be executed in AJAX requests when the session isn't valid. Taha wrote something similar (the @XHR annotation) in his Tapestry Magic blog: http://tawus.wordpress.com/2011/04/16/tapestry-magic-2-ajax-with-graceful-degradation/. On the other hand, I guess it's possible to implement a service that notifies listeners when the session is killed. I don't think it's possible to discern between timeout and normal session invalidation. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Ajax events, expired session and @Persist fields
I finally had a chance to try these methods, unfortunately with little success. Yes, I can check only one @Persist field for null to see whether the session still exists, which works. Request.getSession(false) does not really work, because a new (empty) session can be created within this request by other parts of the code, which is correct behavior. I tried the @XHR method as well, but I could not get the annotated method not to get invoked at all. Whether I call 'invocation.proceed()' or not, the method would still get invoked and throw NullPointerException. I would love to make @XHR method to work, just not call the Ajax method if any of the @Persist variables are null, but still no luck. Any other ideas? Thanks! On Sep 14, 2011, at 6:19 PM, Thiago H. de Paula Figueiredo wrote: On Wed, 14 Sep 2011 16:25:14 -0300, Lenny Primak lpri...@hope.nyc.ny.us wrote: This is a design/best practices question. We set up @Persist fields inside @SetupRender method. When a session is invalid/expired and an Ajax event is called, All these fields at null. The question is if there is a better way to handle this situation than having to check for Null in every Ajax event method for every @Persist field? You don't need to check all of them, just whether Request.getSession(false) returns null or not. I was thinking that @SetupRender should be called in case of session expiration during Ajax call. I don't like this solution at all, as it uses a component event handler for doing something completely unrelated to rendering. You can even write class transformation to add some logic to be executed in AJAX requests when the session isn't valid. Taha wrote something similar (the @XHR annotation) in his Tapestry Magic blog: http://tawus.wordpress.com/2011/04/16/tapestry-magic-2-ajax-with-graceful-degradation/. On the other hand, I guess it's possible to implement a service that notifies listeners when the session is killed. I don't think it's possible to discern between timeout and normal session invalidation. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Ajax events, expired session and @Persist fields
Thanks Thiago. I will try all these options and report the results. On Sep 14, 2011, at 5:19 PM, Thiago H. de Paula Figueiredo thiag...@gmail.com wrote: On Wed, 14 Sep 2011 16:25:14 -0300, Lenny Primak lpri...@hope.nyc.ny.us wrote: This is a design/best practices question. We set up @Persist fields inside @SetupRender method. When a session is invalid/expired and an Ajax event is called, All these fields at null. The question is if there is a better way to handle this situation than having to check for Null in every Ajax event method for every @Persist field? You don't need to check all of them, just whether Request.getSession(false) returns null or not. I was thinking that @SetupRender should be called in case of session expiration during Ajax call. I don't like this solution at all, as it uses a component event handler for doing something completely unrelated to rendering. You can even write class transformation to add some logic to be executed in AJAX requests when the session isn't valid. Taha wrote something similar (the @XHR annotation) in his Tapestry Magic blog: http://tawus.wordpress.com/2011/04/16/tapestry-magic-2-ajax-with-graceful-degradation/. On the other hand, I guess it's possible to implement a service that notifies listeners when the session is killed. I don't think it's possible to discern between timeout and normal session invalidation. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Ajax events, expired session and @Persist fields
This is a design/best practices question. We set up @Persist fields inside @SetupRender method. When a session is invalid/expired and an Ajax event is called, All these fields at null. The question is if there is a better way to handle this situation than having to check for Null in every Ajax event method for every @Persist field? I was thinking that @SetupRender should be called in case of session expiration during Ajax call. Is there any way I can make this happen myself? Or should I open a Jira and maybe that can be an enhancement to tapestry? Thanks for your help. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Ajax events, expired session and @Persist fields
On Wed, 14 Sep 2011 16:25:14 -0300, Lenny Primak lpri...@hope.nyc.ny.us wrote: This is a design/best practices question. We set up @Persist fields inside @SetupRender method. When a session is invalid/expired and an Ajax event is called, All these fields at null. The question is if there is a better way to handle this situation than having to check for Null in every Ajax event method for every @Persist field? You don't need to check all of them, just whether Request.getSession(false) returns null or not. I was thinking that @SetupRender should be called in case of session expiration during Ajax call. I don't like this solution at all, as it uses a component event handler for doing something completely unrelated to rendering. You can even write class transformation to add some logic to be executed in AJAX requests when the session isn't valid. Taha wrote something similar (the @XHR annotation) in his Tapestry Magic blog: http://tawus.wordpress.com/2011/04/16/tapestry-magic-2-ajax-with-graceful-degradation/. On the other hand, I guess it's possible to implement a service that notifies listeners when the session is killed. I don't think it's possible to discern between timeout and normal session invalidation. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: AJAX Events
Em Wed, 25 Feb 2009 08:07:18 -0300, Davor Miku davorm...@gmail.com escreveu: Question is how can some arbitraryJavaScriptFunction() invoke corresponding Tapestry method? Make your Javascript invoke an URL created by ComponentResources.createEventLink(). ;) -- 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
Re: AJAX Events
Check out EventLink and/or ComponentResources.createEventLink. Like:
public class SomeComponent {
@Inject
private ComponentResources resources;
public String getEventLink() {
return
resources
.createEventLink
(MyCustomEventName,contextParameter1,contextParameter2,...);
}
void onMyCustomEventName() {
//do something interesting.
}
Robert
On Feb 25, 2009, at 2/255:07 AM , Davor Miku wrote:
Clicking on actionlink component, some Tapestry method is invoked
(method
for action event).
Question is how can some arbitraryJavaScriptFunction() invoke
corresponding
Tapestry method?
I'm not sure I'm clear enough.
On Wed, Feb 25, 2009 at 4:17 AM, Alex Kotchnev akoch...@gmail.com
wrote:
Davor,
what do you mean by when some div is dropped ? Can you please
describe in slightly more detail by custom events ?
Cheers,
Alex Kotchnev
On Mon, Feb 23, 2009 at 1:56 PM, Davor Miku davorm...@gmail.com
wrote:
Hi!
I've found some tutorials for AJAX in Tapestry, but there all about
action
event, fired form actionlink component.
My questions is how to define custom events, i.e.. when some div
is
dropped.
Thanks!
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
Re: AJAX Events
Davor, what do you mean by when some div is dropped ? Can you please describe in slightly more detail by custom events ? Cheers, Alex Kotchnev On Mon, Feb 23, 2009 at 1:56 PM, Davor Miku davorm...@gmail.com wrote: Hi! I've found some tutorials for AJAX in Tapestry, but there all about action event, fired form actionlink component. My questions is how to define custom events, i.e.. when some div is dropped. Thanks!
AJAX Events
Hi! I've found some tutorials for AJAX in Tapestry, but there all about action event, fired form actionlink component. My questions is how to define custom events, i.e.. when some div is dropped. Thanks!
