Hi Thiago, Thanks for your help. I have already gotten it working.
I have tested my event handler in two ways. 1. Just typed the appropriate URL to browser address line. Of course, this is not an AJAX request. It works when using a MarkupWriter but produces an exception when returning a block. 2. Debugged the real page on client side using Firebug and Wireshark. The page fires the AJAX request via jQuery.ajax() function. I had to make some stupid mistake two days ago as it already works today. Beside others, I overlooked that in case of returning a Tapestry block, the resulting HTML is wrapped into a JSON object, in contrast to using a MarkupWriter (just like in Autocomplete). Regards, Jarda > On Jun2, 2016, at 13:59, Thiago H de Paula Figueiredo <thiag...@gmail.com> > wrote: > > On Thu, 02 Jun 2016 04:59:10 -0300, Jaroslav Ciml <jaroslav.c...@jpower8.cz> > wrote: > >> Hi, > > Hi! > >> I'm using Tapestry 5.3. > > If you want to render a block or component or anything that can be coerced to > a RenderCommand, Tapestry 5.4 has the PartialTemplateRenderer service: > http://tapestry.apache.org/current/apidocs/org/apache/tapestry5/services/PartialTemplateRenderer.html. > > Example: > https://github.com/apache/tapestry-5/blob/master/tapestry-core/src/test/java/org/apache/tapestry5/integration/app1/pages/PartialTemplateRendererDemo.java > > You can see and copy its sources from > https://github.com/apache/tapestry-5/blob/master/tapestry-core/src/main/java/org/apache/tapestry5/internal/services/PartialTemplateRendererImpl.java. > >> In a Tapestry component, I'm trying to implement an event handler that >> creates responses to AJAX requests. >> >> I know that I can call MarkupWriterFactory#newPartialMarkupWriter to get an >> instance of MarkupWriter and then generate the response using this >> MarkupWriter instance. The built-in mixin Autocomplete generates responses >> to AJAX requests in this way. > > You really don't need to do it this way. > >> However, I wonder if there is a chance to create such response using a >> Tapestry block rather than generating the response "manually" via >> MarkupWriter. > > Just return the block instance in your AJAX event handler method. > >> If I just return an instance of block from the event handler, an exception >> is thrown. > > Weird. Tapestry does support block event handler return methods for AJAX > requests (i.e. the ones in which Request.isXHR() returns true). How are you > testing your event handler method? > > -- > Thiago H. de Paula Figueiredo > Tapestry, Java and Hibernate consultant and developer > http://machina.com.br > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
