Load Dojo form from ajax call - ajax

Question

I am trying to implement something like this.
http://app.maqetta.org/mixloginstatic/LoginWindow.html
I want the login page to load but if you click the signup button then an ajax will replace the login form with the signup form.
I have got this to work using this code
dojo.xhrGet({
// The URL of the request
url: "'.$url.'",
// The success callback with result from server
load: function(newContent) {
dojo.byId("'.$contentNode.'").innerHTML = newContent;
},
// The error handler
error: function() {
// Do nothing -- keep old content there
}
});'
the only problem is the new form just loads up as a normal form, not a dojo form. I have tried to return some script with the phaser but it doesnt do anything.
<div id="loginBox"><div class="instructionBox">Please enter your details below and click <a><strong>signup</strong>
</a> to have an activation email sent to you.</div>
<form enctype="application/x-www-form-urlencoded" class="site-form login-form" action="/user/signup" method="post"><div>
<dt id="emailaddress-label"><label for="emailaddress" class="required">Email address</label></dt>
<dd>
<input 0="Errors" id="emailaddress" name="emailaddress" value="" type="text"></dd>
<dt id="password-label"><label for="password" class="required">Password</label></dt>
<dd>
<input 0="Errors" id="password" name="password" value="" type="password"></dd>
<dt id="captcha-input-label"><label for="captcha-input" class="required">Captcha Code</label></dt>
<dd id="captcha-element">
<img width="200" height="50" alt="" src="/captcha/d7849e6f0b95cad032db35e1a853c8f6.png">
<input type="hidden" name="captcha[id]" value="d7849e6f0b95cad032db35e1a853c8f6" id="captcha-id">
<input type="text" name="captcha[input]" id="captcha-input" value="">
<p class="description">Enter the characters shown into the field.</p></dd>
<dt id="submitButton-label"> </dt><dd id="submitButton-element">
<input id="submitButton" name="submitButton" value="Signup" type="submit"></dd>
<dt id="cancelButton-label"> </dt><dd id="cancelButton-element">
<button name="cancelButton" id="cancelButton" type="button">Cancel</button></dd>
</div></form>
<script type="text/javascript">
$(document).ready(function() {
var widget = dijit.byId("signup");
if (widget) {
widget.destroyRecursive(true);
}
dojo.parser.instantiate([dojo.byId("loginBox")]);
dojo.parser.parse(dojo.byId("loginBox"));
});
</script></div>
any advice on how i can get this to load as a dojo form. by the way i am using Zend_Dojo_Form, if i run the code directly then everything works find but through ajax it doesnt work. thanks.
update
I have discovered that if I load the form in my action and run the __toString() on it it works when i load the form from ajax. It must do preparation in __toString()

Answer 1

Firstly; You need to run the dojo parser on html, for it to accept the data-dojo-type (fka dojoType) attributes, like so:
dojo.parser.parse( dojo.byId("'.$contentNode.'") )
This will of course only instantiate dijits where the dojo type is set to something, for instance (for html5 1.7+ syntax) <form data-dojo-type="dijit.form.Form" action="index.php"> ... <button type="submit" data-dojo-type="dijit.form.Button">Send</button> ... </form>.
So you need to change the ajax contents which is set to innerHTML, so that the parser reckognizes the form of the type dijit.form.Form. That said, I urge people into using a complete set of dijit.form.* Elements as input fields.
In regards to:
$(document).ready(function() {});
This function will never get called. The document, youre adding innerHTML to, was ready perhaps a long time a go.
About Zend in this issue:
Youre most likely rendering the above output form from a Zend_ Dojo type form. If the renderer is set as programmatic, you will see above html a script containing a registry for ID=>dojoType mappings. The behavior when inserting <script> as an innerHTML attribute value, the script is not run under most circumstances (!).
You should try something similar to this pseudo for your form controller:
if request is ajax dojoHelper set layout declarative
else dojoHelper set layout programmatic