Here:
/**
* Submits form without validating it.
*
* @author Martin
*/
public abstract class AjaxFormSubmittingChangeListenerBehavior extends
AjaxFormSubmitBehavior {
private final static Method hiddenFieldGetter;
static {
try {
hiddenFieldGetter = Form.class.getDeclaredMethod("getHiddenFieldId");
hiddenFieldGetter.setAccessible(true);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @see org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#onBind()
*/
@Override
protected void onBind() {
super.onBind();
if (!(getComponent() instanceof IOnChangeListener))
{
throw new WicketRuntimeException("Behavior " + getClass().getName() +
" can only be added to an instance of a IOnChangeListener");
}
}
/**
* @param event
*/
public AjaxFormSubmittingChangeListenerBehavior(String event) {
super(event);
}
/**
* @see
org.apache.wicket.ajax.form.AjaxFormSubmitBehavior#onError(org.apache.wicket.ajax.AjaxRequestTarget)
*/
@Override
protected void onError(AjaxRequestTarget target) {
onSubmit(target);
}
/**
* @see
org.apache.wicket.ajax.form.AjaxFormSubmitBehavior#onEvent(org.apache.wicket.ajax.AjaxRequestTarget)
*/
@Override
protected void onEvent(AjaxRequestTarget target) {
HttpServletRequest httpServletRequest = ((WebRequest) getComponent()
.getRequest()).getHttpServletRequest();
Map parameters;
if (httpServletRequest instanceof MockHttpServletRequest) {
parameters = ((MockHttpServletRequest)
httpServletRequest).getParameterMap();
} else {
parameters = ((org.mortbay.jetty.Request)
httpServletRequest).getParameters();
}
parameters.put(getHiddenFieldId(getForm()),
getComponent().urlFor(IOnChangeListener.INTERFACE));
final FormComponent<?> formComponent = (FormComponent<?>) getComponent();
try {
if (isUpdateModel()) {
formComponent.inputChanged();
formComponent.validate();
if (!formComponent.hasErrorMessage()) {
formComponent.valid();
formComponent.updateModel();
}
}
super.onEvent(target);
} catch (RuntimeException e) {
Utils.errorLog(AjaxFormSubmittingChangeListenerBehavior.class, e);
onError(target);
}
}
/**
* @return boolean
*/
protected boolean isUpdateModel() {
return true;
}
/**
* @param form
* @return String
*/
private String getHiddenFieldId(Form<?> form) {
try {
Form<?> root = form.getRootForm();
return (String) hiddenFieldGetter.invoke(root);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
2010/4/23 Joseph Pachod <[email protected]>:
> Igor Vaynberg wrote:
>>
>> there is ajaxformsubmitting behavior which will update the entire form
>>
>> -igor
>>
>
> thanks
>
> however, that's not exactly my need, being just recording the user input
> (not to loose it) without validating. Is there no way around, like a hook
> from Ajax to act only on some component internal state ?
>
> My use case being the following:
>
>> The use case for it is a ListView with reuseItems(true) which loses in
>> transit state. In more details, it means the user writes something in one
>> of
>> the listitem's textfield, then click on "add new item" => I want the
>> textfield's state to be known and preserved, whereas the whole form
>> shouldn't be submitted yet.
>
> which approach would you recommend ?
>
> thanks again
>
> joseph
>
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