"I would like to know what's the difference between Forms.showForm() and cocoon.sendPageAndWait()."
and your example using jx template generator...
"So I use a flowscript, in which I create a form object and send it to the pipeline with form.showForm :
function sendForm(){
var form = new Form("forms/definitions.xml");
form.showForm("display-form");
} "
....
I would take a guess that you're not importing the correct Form.js. You're probably importing version 1 of Form.js as follows in your .js file:
cocoon.load("resource://..../forms/flow/_javascript_/Form.js");
This (v1) version of Form.js in turn defines the following class at the top of the file:
defineClass("org.apache.cocoon.forms.flow._javascript_.ScriptableWidget");
However....
The forms (form1) sample which uses the jx:macros is in the v2 directory. If you notice, the v2/forms_flow_example.js in that directory imports at the top:
cocoon.load("resource://..../forms/flow/_javascript_/v2/Form.js");
Notably, this Form.js defines the class:
defineClass("org.apache.cocoon.forms.flow._javascript_.v2.ScriptableWidget");
at the top of the file.
What does it mean?
First to clarify the difference between form.showForm and cocoon.sendPageAndWait().
Essentially, form.showForm (in Form.js) does a cocoon.sendPageAndWait() for you, but it makes sure that your form object is passed into the pipeline as bizData. So, form.showForm("my-display-pipeline") is roughly equivalent to cocoon.sendPageAndWait("my-display-pipeline",["bizData":myForm]).
Note that the myForm is the form which is returned in:
var f = new Form("definition.xml");
and this "f" is actually an instance of ScriptableWidget, returned to you by Form.js, or an instance of v2.ScriptableWidget returned to you by v2/Form.js.
So, I think the problem is that the myForm you are instantiating is a ScriptableWidget not a v2.ScriptableWidget, and the way Form.js handles the formContext is different from v1 to v2. The v1 method is not compatible with the way jx:macros lookup the 'form', expecting to find a v2.ScriptableWidget.
Hope this helps
James
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