/*
* 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.click.examples.page.form.dynamic;
import org.apache.click.ActionListener;
import org.apache.click.Control;
import org.apache.click.control.Checkbox;
import org.apache.click.control.FieldSet;
import org.apache.click.control.Form;
import org.apache.click.control.Submit;
import org.apache.click.control.TextField;
import org.apache.click.examples.page.BorderPage;
import org.apache.click.extras.control.EmailField;
import org.apache.click.extras.control.IntegerField;
import org.apache.click.util.ClickUtils;
/**
* Demonstrates dynamic Form behavior.
*/
public class DynamicFieldSet extends BorderPage {
private static final long serialVersionUID = 1L;
private Form form = new Form("dynamicForm");
private FieldSet customerFS = new FieldSet("customer");
private FieldSet addressFS = new FieldSet("address");
private TextField nameField = new TextField("name", true);
private IntegerField ageField = new IntegerField("age");
private Checkbox addressChk = new Checkbox("address");
private EmailField emailField = new EmailField("email", true);
private Submit submit = new Submit("ok");
// Event Handlers ---------------------------------------------------------
@Override
public void onInit() {
super.onInit();
form.add(customerFS);
customerFS.add(nameField);
customerFS.add(ageField);
customerFS.add(addressChk);
// The Click script, '/click/control.js', provides the JavaScript
// function Click.submit(formName, validate). To bypass validation
// specify 'false' as the second argument.
addressChk.setAttribute("onclick", "Click.submit(dynamicForm, false)");
form.add(submit);
addControl(form);
// NB: Bind and validate form fields *before* the onProcess event,
// enabling us to inspect Field values in the onInit event or even
// the Page constructor
boolean valid = ClickUtils.bindAndValidate(form);
// We can safely check whether the user checked the addressChk
if (addressChk.isChecked()) {
// Dynamically add a new Field and FieldSet to the form
addressFS.add(emailField);
form.add(addressFS);
}
form.setActionListener(new ActionListener() {
private static final long serialVersionUID = 1L;
public boolean onAction(Control source) {
return onFormSubmit();
}
});
}
public boolean onFormSubmit() {
// onFormSubmit listens on Form itself and will be invoked whenever the
// form is submitted.
if (form.isValid()) {
// Check isBypassValidation() flag whether the form validation occurred
if (form.isBypassValidation()) {
addModel("msg", "Validation bypassed");
} else {
addModel("msg", "Form is valid after validation");
}
}
return true;
}
}