/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.wicket.examples.ajax.builtin;
import org.apache.wicket.IClusterable;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.form.AjaxFormValidatingBehavior;
import org.apache.wicket.ajax.markup.html.form.AjaxSubmitButton;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.FormComponent;
import org.apache.wicket.markup.html.form.RequiredTextField;
import org.apache.wicket.markup.html.form.SimpleFormComponentLabel;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.apache.wicket.model.CompoundPropertyModel;
import org.apache.wicket.model.ResourceModel;
import org.apache.wicket.util.time.Duration;
import org.apache.wicket.validation.validator.EmailAddressValidator;
import org.apache.wicket.validation.validator.StringValidator;
/**
* Page to demonstrate instant ajax validaion feedback. Validation is triggered
* as the user is typing, but is throttled so that only one ajax call is made to
* the server per second.
*
* @author Igor Vaynberg (ivaynberg)
*/
public class FormPage extends BasePage {
private Bean bean = new Bean();
/**
* Constructor
*/
public FormPage() {
// create feedback panel to show errors
final FeedbackPanel feedback = new FeedbackPanel("feedback");
feedback.setOutputMarkupId(true);
add(feedback);
// add form with markup id setter so it can be updated via ajax
Form form = new Form("form", new CompoundPropertyModel(bean));
add(form);
form.setOutputMarkupId(true);
FormComponent fc;
// add form components to the form as usual
fc = new RequiredTextField("name");
fc.add(StringValidator.minimumLength(4));
fc.setLabel(new ResourceModel("label.name"));
form.add(fc);
form.add(new SimpleFormComponentLabel("name-label", fc));
fc = new RequiredTextField("email");
fc.add(EmailAddressValidator.getInstance());
fc.setLabel(new ResourceModel("label.email"));
form.add(fc);
form.add(new SimpleFormComponentLabel("email-label", fc));
// attach an ajax validation behavior to all form component's onkeydown
// event and throttle it down to once per second
AjaxFormValidatingBehavior.addToAllFormComponents(form, "onkeyup",
Duration.ONE_SECOND);
// add a button that can be used to submit the form via ajax
form.add(new AjaxSubmitButton("ajax-submit-button", form) {
protected void onSubmit(AjaxRequestTarget target, Form form) {
// repaint the feedback panel so that it is hidden
target.addComponent(feedback);
}
protected void onError(AjaxRequestTarget target, Form form) {
// repaint the feedback panel so errors are shown
target.addComponent(feedback);
}
});
}
/** simple java bean. */
public static class Bean implements IClusterable {
private String name, email;
/**
* Gets email.
*
* @return email
*/
public String getEmail() {
return email;
}
/**
* Sets email.
*
* @param email
* email
*/
public void setEmail(String email) {
this.email = email;
}
/**
* Gets name.
*
* @return name
*/
public String getName() {
return name;
}
/**
* Sets name.
*
* @param name
* name
*/
public void setName(String name) {
this.name = name;
}
}
}