Hi,
I'm using Wicket 6.14.0
I've got a form with many components including one which is a RadioGroup
(with several Radio) and one which is a DropDownChoice,
Both the RadioGroup // Radios and the DropDownChoice have been marked to get
selection changed notifications with the
RadioGroup#wantOnSelectionChangedNotifications() and the
DropDownChoice#wantOnSelectionChangedNotifications() both returning true.
My problem is that the DropDownChoice although it refreshes the *page does
not* actually receive a notification via the onSelectionChanged(T) method
whereas the RadioGroup *does* via the onSelectChanged(Object).
I've looked at the code and noticed that when Wicket (6.14 in my case)
writes out the onChange javascript the radio and the dropdown differ
slightly:
Here is the html code for both:
Notably the radio sets a specific form element name "id28_hf_0" to the value
(reference):
./antwerp.web.page.account.realtyadvert.publish.PublishRealtyAdvert?6-1.IOnChangeListener-publishRealtyAdvert-form-advertEditPanel-operationType
and the Dropdown sets the same form element name:
../../page?6-1.IOnChangeListener-publishRealtyAdvert-form-advertEditPanel-propertyType
So the first one (of the radio group) works ok and finds the right
ListenerInterfaceRequestHandler and calls its onSelectionChanged() methodThe
second one (from the dropdown) does not find any
ListenerInterfaceRequestHandler.
The code from DropDownChoice that creates the onchange attribute value is:
// we do not want relative URL here, because it will be used by//
Form#dispatchEventCharSequence url = urlFor(new
ListenerInterfaceRequestHandler( new
PageAndComponentProvider(getPage(),
this, new PageParameters()),
IOnChangeListener.INTERFACE));Form<?> form =
findParent(Form.class);if (form != null){ tag.put("onchange",
form.getJsForInterfaceUrl(url.toString()));}else{ tag.put("onchange",
"window.location.href='" + url + (url.toString().indexOf('?') >
-1 ? "&" :
"?") + getInputName() + "=' +
this.options[this.selectedIndex].value;");}
The code from Radio
// url that points to this components IOnChangeListener methodCharSequence
url = group.urlFor(IOnChangeListener.INTERFACE, new
PageParameters());Form<?> form = group.findParent(Form.class);if (form !=
null){ tag.put("onclick", form.getJsForInterfaceUrl(url));}else{ //
NOTE: do
not encode the url as that would give invalid JavaScript
tag.put("onclick",
"window.location.href='" + url + (url.toString().indexOf('?') >
-1 ? "&" :
"?") + group.getInputName() + "=' +
this.value;");}
The page on which the form is on is not mapped its is just redirected to
from another mapped page, I think this may be the problem and I should
explicitly map the page with the form so that both urlFor calls return a
defined page.
I just tried that mapping the page to "my-advert-form-page.html" and it now
works fine.
So back to my original question, is this a bug in wicket, or am I just using
the framework incorrectly.
Cheers
Simon
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