Hi!
I hope I found a solution usin IOnChangeListener.
Please try this out and let me know if it works for you. Maybe it
should be incorporated into Wicket?
public abstract class FormSubmitAjaxChangeListenerCallDecorator
implements IAjaxCallDecorator {
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.IAjaxCallDecorator#decorateOnFailureScript(java.lang.CharSequence)
*/
public CharSequence decorateOnFailureScript(
CharSequence arg0) {
return arg0;
}
/**
* @see
org.apache.wicket.ajax.IAjaxCallDecorator#decorateOnSuccessScript(java.lang.CharSequence)
*/
public CharSequence decorateOnSuccessScript(
CharSequence arg0) {
return arg0;
}
/**
* @see
org.apache.wicket.ajax.IAjaxCallDecorator#decorateScript(java.lang.CharSequence)
*/
public CharSequence decorateScript(CharSequence arg0) {
Form<?> root = getForm().getRootForm();
String hiddenFieldId;
try {
hiddenFieldId = (String) hiddenFieldGetter.invoke(root);
return new AppendingStringBuffer("document.getElementById('").append(
hiddenFieldId).append("').value='").append(getChangeListenerUrl()).append(
"';").append(arg0);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @return Form<?>
*/
public abstract Form<?> getForm();
/**
* @return CharSequence
*/
public abstract CharSequence getChangeListenerUrl();
}
public abstract class AjaxFormSubmittingChangeListenerCheckBox extends
CheckBox {
/**
* @param id
* @param model
*/
public AjaxFormSubmittingChangeListenerCheckBox(String id,
IModel<Boolean> model) {
super(id, model);
add(new AjaxFormSubmitBehavior(JavaScriptConstants.ONCHANGE) {
@Override
protected void onError(AjaxRequestTarget target) {
AjaxFormSubmittingChangeListenerCheckBox.this.onError(target);
}
@Override
protected void onSubmit(AjaxRequestTarget target) {
AjaxFormSubmittingChangeListenerCheckBox.this.onSubmit(target);
}
/**
* @see
org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#getAjaxCallDecorator()
*/
@Override
protected IAjaxCallDecorator getAjaxCallDecorator() {
return new FormSubmitAjaxChangeListenerCallDecorator() {
@Override
public CharSequence getChangeListenerUrl() {
return urlFor(IOnChangeListener.INTERFACE);
}
@Override
public Form<?> getForm() {
return AjaxFormSubmittingChangeListenerCheckBox.this.getForm();
}
};
}
});
}
/**
* @param target
*/
protected abstract void onSubmit(AjaxRequestTarget target);
/**
* @param target
*/
protected void onError(AjaxRequestTarget target) {
onSubmit(target);
}
/**
* @param id
*/
public AjaxFormSubmittingChangeListenerCheckBox(String id) {
this(id, null);
}
}
2009/11/3 Martin Makundi <martin.maku...@koodaripalvelut.com>:
> Hi!
>
> Maybe this is the solution:
>
> String url =
> getRequest().getParameter(getHiddenFieldId());
> if (!Strings.isEmpty(url))
> {
> dispatchEvent(getPage(), url);
> }
>
>
> ??
>
> Attach a change listener with ajax form submit?
>
> **
> Martin
>
> 2009/11/3 Martin Makundi <martin.maku...@koodaripalvelut.com>:
>> Hi!
>>
>> I need to accomplish the following:
>> 1. receive ajax onchange event from a formcomponent
>> 2. receive "defaultformprocesing=false" style submit
>> 3. repaint an area; I this is why I need the form to be really
>> submitted (=rawinput but not validated).
>>
>> I have built a custom component FormSubmittingDropDownChoice.
>>
>> The problem is that even if I press another submit component (button,
>> for example), the form allways assumes the formSubmitting component to
>> be FormSubmittingDropDownChoice. Why? Because the findSubmittingButton
>> is so simple that if FormSubmittingDropDownChoice has a value, it is
>> the submitting component.
>>
>> Is there a workaround or fix? How could I achieve similar
>> functionality in a working manner? This works well if I click the
>> FormSubmittingDropDownChoice, otherwise it does not :(
>>
>> package com.tustor.wicket.common.reusables.formcomponents;
>>
>> public class FormSubmittingDropDownChoice<T> extends DropDownChoice<T>
>> implements IFormSubmittingComponent {
>>
>> public FormSubmittingDropDownChoice(String id, various constructor options)
>> {
>> super(id, choices, renderer);
>> }
>> /**
>> * @see
>> org.apache.wicket.markup.html.form.IFormSubmittingComponent#getDefaultFormProcessing()
>> */
>> public boolean getDefaultFormProcessing() {
>> return false;
>> }
>>
>> /**
>> * @see
>> org.apache.wicket.markup.html.form.IFormSubmittingComponent#onSubmit()
>> */
>> public void onSubmit() {
>> // override
>> }
>>
>> /**
>> * wicket-ajax:
>> *
>> * if (submitButton != null) {
>> * s += Wicket.Form.encode(submitButton) + "=1";
>> * }
>> *
>> * @see org.apache.wicket.markup.html.form.FormComponent#getInputAsArray()
>> */
>> �...@override
>> public String[] getInputAsArray() {
>> return MarkupUtils.filterSubmitIndicator(super.getInputAsArray());
>> }
>>
>> /**
>> * @see
>> org.apache.wicket.markup.html.form.AbstractSingleSelectChoice#getModelValue()
>> */
>> �...@override
>> public String getModelValue() {
>> String value = super.getModelValue();
>> if ("1".equals(value)) {
>> throw new IllegalStateException("1 not supported because of
>> javaScript wicket-ajax:submitForm: function(form, submitButton)");
>> }
>> return value;
>> }
>> }
>>
>
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