Ah, you're right. You can't add script during the action phase, you
need to add the script when the zones are rendering.
Try this:
@Inject
private RenderSupport _support;
@Inject
private PageRenderQueue _queue;
MultiZoneUpdate onHello() {
_queue.addPartialMarkupRendererFilter(new
PartialMarkupRendererFilter() {
public void renderMarkup(MarkupWriter writer, JSONObject
reply, PartialMarkupRenderer renderer) {
_support.addScript("alert('I am script');");
renderer.renderMarkup(writer, reply);
}
});
return new MultiZoneUpdate("test", _timeBlock);
}
Josh
On Sun, May 23, 2010 at 10:45 PM, Paul Stanton <p...@mapshed.com.au> wrote:
> Thanks for the ideas Josh, Hopefully I can get some use out of them...
>
> I am creating the Ajax.Request myself as this is essentially what the
> Autocompleter does which is the best example I can find. I am infact
> extending the Autocompleter so that I can trigger an Ajax communication when
> an item is selected from the autocomplete suggestions. Essentially this is
> the same as having an actionlink, in that I am using
> ComponentResources.createEventLink().toAbsoluteURI() to determine the URL to
> call via Ajax.Request. The listener on the other end returns the
> MultiZoneUpdate.
>
> I've tried injecting RenderSupport:
> @Inject private RenderSupport renderSupport;
>
> But the following exception is thrown:
>
> Caused by: java.lang.RuntimeException: No object of type
> org.apache.tapestry5.RenderSupport is available from the Environment.
> Available types are
> org.apache.tapestry5.services.ComponentEventResultProcessor.
> at
> org.apache.tapestry5.internal.services.EnvironmentImpl.peekRequired(EnvironmentImpl.java:79)
> at $Environment_128c8ccda65.peekRequired($Environment_128c8ccda65.java)
> at $Environment_128c8ccd9c6.peekRequired($Environment_128c8ccd9c6.java)
> at $RenderSupport_128c8ccda6d._delegate($RenderSupport_128c8ccda6d.java)
> at $RenderSupport_128c8ccda6d.addScript($RenderSupport_128c8ccda6d.java)
> at $RenderSupport_128c8ccda25.addScript($RenderSupport_128c8ccda25.java)
>
> I believe this is because it's invalid in the context of a partial render
> (ajax server side event listener). Have you tried injecting RenderSupport
> and using it in your example 'Object onActionFromUpdate()' ? I don't think
> it would work, because it is essentially the same architecture as what I
> have, minus the actionlink component.
>
> p.
>
> Josh Canfield wrote:
>>>
>>> I've recently come up with a solution for handling MultiZoneUpdate as the
>>> response from an Ajax.Request.
>>>
>>
>> I'm not sure I follow why you need to create your own Ajax.Request
>> instead of using one of the built-in action/event link components. You
>> can give it the name of one zone but return a MultiZoneUpdate
>> response.
>>
>> (from tapestry core MultiZoneUpdateDemo.tml )
>> <t:actionlink t:id="update" zone="fred">update</t:actionlink>
>>
>> (from tapestry-core MultiZoneUpdateDemo.java)
>> Object onActionFromUpdate()
>> {
>> return new MultiZoneUpdate("fred", fredBlock).add("barney",
>> barneyBlock).add("dino", "His dog, Dino.");
>> }
>>
>>
>>>
>>> Now I need to add the ability to execute a script, generated (or values
>>> populated) by the server.
>>>
>>>
>>
>> @Inject RenderSupport and call the addScript methods. If you're using
>> the built-in components then they get handled by default. The code
>> that does that is in ZoneManager.processReply.
>>
>> Is this what you are trying to do?
>>
>> Josh
>>
>> On Sun, May 23, 2010 at 5:13 PM, Paul Stanton <p...@mapshed.com.au> wrote:
>>
>>>
>>> Hi all,
>>>
>>> I've recently come up with a solution for handling MultiZoneUpdate as the
>>> response from an Ajax.Request.
>>>
>>> I did this by creating the following javascript function and calling it
>>> in
>>> Ajax.Request.onSuccess:
>>>
>>> Tapestry.handleMultizoneUpdate = function (transport)
>>> {
>>> var reply = transport.responseJSON;
>>> // copied from tapestry.js - ZoneManager.processReply
>>> // apparently exposed in t5.2
>>> Object.keys(reply.zones).each(function (zoneId) {
>>> var manager = Tapestry.findZoneManagerForZone(zoneId);
>>> if (manager) {
>>> var zoneContent = reply.zones[zoneId];
>>> manager.show(zoneContent);
>>> }
>>> });
>>> };
>>>
>>> Now I need to add the ability to execute a script, generated (or values
>>> populated) by the server.
>>>
>>> 1. Where is the code that turns MultiZoneUpdate into JSON?
>>> 2. What is the best way to return a javascript snippet from a tapestry
>>> event
>>> listener to the client and have it executed in an Ajax/XHR environment?
>>>
>>> Thanks, p.
>>>
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>>>
>>>
>>>
>>
>>
>>
>>
>
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