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Posted to users@tapestry.apache.org by Chris Lewis <ch...@bellsouth.net> on 2008/09/02 16:41:55 UTC
T5: RenderSupport in XHR requests
Hello,
I was under the impression that the use of RenderSupport to add
javascript to an AJAX response was supported, and that scripts added in
such a context via addScript would be executed automatically via
tapestry.js when the response is received. Isn't that how it should work?
I'm using a form with a zone to implement a "send link to friend"
feature over ajax, but when I try to add js to execute when the ajax
reponse completes, a ComponentEventException is thrown saying:
No object of type org.apache.tapestry5.RenderSupport is available from
the Environment. Available types are
org.apache.tapestry5.ValidationTracker,
org.apache.tapestry5.services.ComponentEventResultProcessor,
org.apache.tapestry5.services.FormSupport,
org.apache.tapestry5.services.Heartbeat. [at context:blog/View.tml, line
51, column 73]
I've verified in the TapestryModule#contributePartialMarkupRenderer
method, line 1647, that a service named "RenderSupport" is being being
added to the pipeline, which suggests that it should be available for
injection.
The page that's using (or want to use) it in an ajax response explicitly
checks request.isXHR(), and then adds script code via
renderSupport.addScript("");. Have I missed something?
Thanks in advance,
chris
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Re: T5: RenderSupport in XHR requests
Posted by Howard Lewis Ship <hl...@gmail.com>.
It would be tricky for some technical reasons.
You can return a new Renderable object that will act as a callback
from inside the partial rendering pipeline; inside the render()
method, the environment (including RenderSupport) will be properly
setup:
i.e.
Object onActionFromFoo()
{
return new Renderable() { public void render(MarkupWriter writer) {
renderSupport.addScript( . . . ); } };
}
On Tue, Sep 2, 2008 at 12:26 PM, Chris Lewis <ch...@bellsouth.net> wrote:
> Thanks Howard. Is the availability of RenderSupport within component
> event handlers a candidate for a new feature? Without such support I'm
> not sure how an app can return JS code to be executed to the client as
> the result of an action (ie a fired component event).
>
> chris
>
> Howard Lewis Ship wrote:
>> It may not work from an event handler method, as its wired into place
>> for the partial page render.
>>
>> On Tue, Sep 2, 2008 at 7:41 AM, Chris Lewis <ch...@bellsouth.net> wrote:
>>
>>> Hello,
>>>
>>> I was under the impression that the use of RenderSupport to add
>>> javascript to an AJAX response was supported, and that scripts added in
>>> such a context via addScript would be executed automatically via
>>> tapestry.js when the response is received. Isn't that how it should work?
>>>
>>> I'm using a form with a zone to implement a "send link to friend"
>>> feature over ajax, but when I try to add js to execute when the ajax
>>> reponse completes, a ComponentEventException is thrown saying:
>>>
>>> No object of type org.apache.tapestry5.RenderSupport is available from
>>> the Environment. Available types are
>>> org.apache.tapestry5.ValidationTracker,
>>> org.apache.tapestry5.services.ComponentEventResultProcessor,
>>> org.apache.tapestry5.services.FormSupport,
>>> org.apache.tapestry5.services.Heartbeat. [at context:blog/View.tml, line
>>> 51, column 73]
>>>
>>> I've verified in the TapestryModule#contributePartialMarkupRenderer
>>> method, line 1647, that a service named "RenderSupport" is being being
>>> added to the pipeline, which suggests that it should be available for
>>> injection.
>>>
>>> The page that's using (or want to use) it in an ajax response explicitly
>>> checks request.isXHR(), and then adds script code via
>>> renderSupport.addScript("");. Have I missed something?
>>>
>>> Thanks in advance,
>>> chris
>>>
>>> --
>>> http://thegodcode.net
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
>>> For additional commands, e-mail: users-help@tapestry.apache.org
>>>
>>>
>>>
>>
>>
>>
>>
>
> --
> http://thegodcode.net
>
>
--
Howard M. Lewis Ship
Creator Apache Tapestry and Apache HiveMind
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Re: T5: RenderSupport in XHR requests
Posted by Josh Canfield <jo...@thedailytube.com>.
If you have a form in the block that is being rendered then I've used the
PREPARE_FOR_RENDER event from the form to inject scripts.
Subcomponents get their render methods called during a partial render, I'm
not sure why the targeted component's render methods are not called.
On Tue, Sep 2, 2008 at 12:26 PM, Chris Lewis <ch...@bellsouth.net>wrote:
> Thanks Howard. Is the availability of RenderSupport within component
> event handlers a candidate for a new feature? Without such support I'm
> not sure how an app can return JS code to be executed to the client as
> the result of an action (ie a fired component event).
>
> chris
>
> Howard Lewis Ship wrote:
> > It may not work from an event handler method, as its wired into place
> > for the partial page render.
> >
> > On Tue, Sep 2, 2008 at 7:41 AM, Chris Lewis <ch...@bellsouth.net>
> wrote:
> >
> >> Hello,
> >>
> >> I was under the impression that the use of RenderSupport to add
> >> javascript to an AJAX response was supported, and that scripts added in
> >> such a context via addScript would be executed automatically via
> >> tapestry.js when the response is received. Isn't that how it should
> work?
> >>
> >> I'm using a form with a zone to implement a "send link to friend"
> >> feature over ajax, but when I try to add js to execute when the ajax
> >> reponse completes, a ComponentEventException is thrown saying:
> >>
> >> No object of type org.apache.tapestry5.RenderSupport is available from
> >> the Environment. Available types are
> >> org.apache.tapestry5.ValidationTracker,
> >> org.apache.tapestry5.services.ComponentEventResultProcessor,
> >> org.apache.tapestry5.services.FormSupport,
> >> org.apache.tapestry5.services.Heartbeat. [at context:blog/View.tml, line
> >> 51, column 73]
> >>
> >> I've verified in the TapestryModule#contributePartialMarkupRenderer
> >> method, line 1647, that a service named "RenderSupport" is being being
> >> added to the pipeline, which suggests that it should be available for
> >> injection.
> >>
> >> The page that's using (or want to use) it in an ajax response explicitly
> >> checks request.isXHR(), and then adds script code via
> >> renderSupport.addScript("");. Have I missed something?
> >>
> >> Thanks in advance,
> >> chris
> >>
> >> --
> >> http://thegodcode.net
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> >> For additional commands, e-mail: users-help@tapestry.apache.org
> >>
> >>
> >>
> >
> >
> >
> >
>
> --
> http://thegodcode.net
>
>
--
--
TheDailyTube.com. Sign up and get the best new videos on the internet
delivered fresh to your inbox.
Re: T5: RenderSupport in XHR requests
Posted by Chris Lewis <ch...@bellsouth.net>.
Thanks Howard. Is the availability of RenderSupport within component
event handlers a candidate for a new feature? Without such support I'm
not sure how an app can return JS code to be executed to the client as
the result of an action (ie a fired component event).
chris
Howard Lewis Ship wrote:
> It may not work from an event handler method, as its wired into place
> for the partial page render.
>
> On Tue, Sep 2, 2008 at 7:41 AM, Chris Lewis <ch...@bellsouth.net> wrote:
>
>> Hello,
>>
>> I was under the impression that the use of RenderSupport to add
>> javascript to an AJAX response was supported, and that scripts added in
>> such a context via addScript would be executed automatically via
>> tapestry.js when the response is received. Isn't that how it should work?
>>
>> I'm using a form with a zone to implement a "send link to friend"
>> feature over ajax, but when I try to add js to execute when the ajax
>> reponse completes, a ComponentEventException is thrown saying:
>>
>> No object of type org.apache.tapestry5.RenderSupport is available from
>> the Environment. Available types are
>> org.apache.tapestry5.ValidationTracker,
>> org.apache.tapestry5.services.ComponentEventResultProcessor,
>> org.apache.tapestry5.services.FormSupport,
>> org.apache.tapestry5.services.Heartbeat. [at context:blog/View.tml, line
>> 51, column 73]
>>
>> I've verified in the TapestryModule#contributePartialMarkupRenderer
>> method, line 1647, that a service named "RenderSupport" is being being
>> added to the pipeline, which suggests that it should be available for
>> injection.
>>
>> The page that's using (or want to use) it in an ajax response explicitly
>> checks request.isXHR(), and then adds script code via
>> renderSupport.addScript("");. Have I missed something?
>>
>> Thanks in advance,
>> chris
>>
>> --
>> http://thegodcode.net
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
>> For additional commands, e-mail: users-help@tapestry.apache.org
>>
>>
>>
>
>
>
>
--
http://thegodcode.net
Re: T5: RenderSupport in XHR requests
Posted by Howard Lewis Ship <hl...@gmail.com>.
It may not work from an event handler method, as its wired into place
for the partial page render.
On Tue, Sep 2, 2008 at 7:41 AM, Chris Lewis <ch...@bellsouth.net> wrote:
> Hello,
>
> I was under the impression that the use of RenderSupport to add
> javascript to an AJAX response was supported, and that scripts added in
> such a context via addScript would be executed automatically via
> tapestry.js when the response is received. Isn't that how it should work?
>
> I'm using a form with a zone to implement a "send link to friend"
> feature over ajax, but when I try to add js to execute when the ajax
> reponse completes, a ComponentEventException is thrown saying:
>
> No object of type org.apache.tapestry5.RenderSupport is available from
> the Environment. Available types are
> org.apache.tapestry5.ValidationTracker,
> org.apache.tapestry5.services.ComponentEventResultProcessor,
> org.apache.tapestry5.services.FormSupport,
> org.apache.tapestry5.services.Heartbeat. [at context:blog/View.tml, line
> 51, column 73]
>
> I've verified in the TapestryModule#contributePartialMarkupRenderer
> method, line 1647, that a service named "RenderSupport" is being being
> added to the pipeline, which suggests that it should be available for
> injection.
>
> The page that's using (or want to use) it in an ajax response explicitly
> checks request.isXHR(), and then adds script code via
> renderSupport.addScript("");. Have I missed something?
>
> Thanks in advance,
> chris
>
> --
> http://thegodcode.net
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
--
Howard M. Lewis Ship
Creator Apache Tapestry and Apache HiveMind
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