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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