[fw-general] Zend_Form_Element_Image::isChecked() cross browser

[Andrew Ballard]

I'm having problems with Zend_Form_Element_Image::isChecked() across
browsers. I created a form where the only elements were images. When
the user clicks one, that item should be removed from the list. When I
test the form in Firefox, Chrome, and Safari (Windows) it works just
fine. When I test using Internet Explorer 7and Opera, the list remains
unchanged.

I looked at the post data submitted by FF (using Live HTTP Headers)
and IE (using ieHTTPHeaders) and this is what I see:
FF:
removeGuest%5B5%5D.x=8&removeGuest%5B5%5D.y=9&removeGuest%5B5%5D=Barney+Fife

IE:
removeGuest%5B5%5D.x=6&removeGuest%5B5%5D.y=10


The values I see in both $_POST and $request->getPost() are:
FF:
array(1) {
  ["removeGuest"] => array(1) {
    [5] => string(11) "Barney Fife"
  }
}


IE:
array(1) {
  ["removeGuest"] => array(1) {
    [5] => string(2) "10"
  }
}



I know this is essentially a browser issue, and I'm guessing that the
"fix" will be for the isChecked() method to be changed from this:
    public function isChecked()
    {
        $imageValue = $this->getImageValue();
        return ((null !== $imageValue) && ($this->getValue() == $imageValue));
    }

to this:
    public function isChecked()
    {
        return ($this->getValue() != null);
    }

For now, though, is there a workaround I can use?


Andrew