I'm working on a rather complex component involving An AjaxFormLoop where I
need to detach and then reattach events to the DOM after the new HTML node
has been inserted (as we're adding another input field to the form). When
I'm using a regular zone, Tapestry provides by the way of Pub/Sub through
various custom events like:
Tapestry.ZONE_UPDATED_EVENT
Tapestry.TRIGGER_ZONE_UPDATE_EVENT
>From what I can see and have read in the API docs, as well as having reverse
engineered the Tapestry5-jQuery implementation we're using, it seems like
there is a widget extension that manages this and has it's own AJAX to
handle the communication (looks like the URL is passed through the options).
>From tapestry-jquery.js:
/**
* Form Injector
*/
$.widget( "ui.tapestryFormInjector", {
options: {
show: "highlight"
},
_create: function() {
this.element
.addClass( "tapestry-forminjector" )
},
destroy: function() {
this.element
.removeClass( "tapestry-forminjector");
$.Widget.prototype.destroy.apply( this, arguments );
},
trigger: function() {
var that = this,
el = $("#" + this.options.element);
var successHandler = function(data) {
$(data).log("data");
$.tapestry.utils.loadScriptsInReply(data, function() {
// Clone the FormInjector element (usually a div)
// to create the new element, that gets inserted
// before or after the FormInjector's element.
var newElement = el.clone(false);
newElement.attr("id", data.elementId);
newElement.html(data.content);
newElement = that.options.below ? el.after(newElement) :
el.before(newElement);
newElement.effect(that.options.show);
});
};
$(this.options).log("this.options.url" + this.options.url)
$.ajax({
type:"POST",
url: this.options.url,
success: successHandler
});
}
});
Looks like no pub sub here. Is there any way to trigger a method that I can
define on the init stack (Tapestry.Initializers)? I've tried rendering JSON
as a return on the onAddRowFrom java event and that was placed as value to
the input I was returning. I tried injecting JavascriptSupport in the same
function and the server errored.
Has anyone encountered this...or does anyone know of a way to trigger the
init stack through an AjaxFormLoop so I don't have to re-write the base
widget to add our own custom events?
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