| /* |
| * 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.markup.html.form; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.wicket.model.IModel; |
| import org.apache.wicket.request.mapper.parameter.INamedParameters; |
| import org.apache.wicket.request.mapper.parameter.PageParameters; |
| import org.apache.wicket.util.string.Strings; |
| import org.apache.wicket.util.visit.IVisit; |
| import org.apache.wicket.util.visit.IVisitor; |
| |
| /** |
| * This StatelessForm is the same as a normal form but with the statelesshint default to true. The |
| * form can be newly constructed when the onSubmit of its form or its buttons is called. So you |
| * can't depend on state within the page. The only state you can depend on is what was submitted |
| * from the browser. So the model of the form or the formcomponents are updated with the submit |
| * values. |
| * |
| * <strong>Note</strong>: Use {@link org.apache.wicket.markup.repeater.RepeatingView} in the case when |
| * {@link org.apache.wicket.markup.html.form.FormComponent}s need to be rendered inside a repeater. See |
| * the javadoc of {@link org.apache.wicket.markup.repeater.AbstractRepeater} for more information. |
| * |
| * @author jcompagner |
| * @param <T> |
| * The type of the {@link Form}'s model object |
| */ |
| public class StatelessForm<T> extends Form<T> |
| { |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * Construct. |
| * |
| * @param id |
| */ |
| public StatelessForm(String id) |
| { |
| super(id); |
| } |
| |
| /** |
| * Construct. |
| * |
| * @param id |
| * @param model |
| */ |
| public StatelessForm(String id, IModel<T> model) |
| { |
| super(id, model); |
| } |
| |
| @Override |
| protected boolean getStatelessHint() |
| { |
| return true; |
| } |
| |
| @Override |
| protected MethodMismatchResponse onMethodMismatch() |
| { |
| setResponsePage(getPage().getClass(), getPage().getPageParameters()); |
| return MethodMismatchResponse.ABORT; |
| } |
| |
| @Override |
| protected CharSequence getActionUrl() |
| { |
| return urlForListener(getPage().getPageParameters()); |
| } |
| |
| /** |
| * Remove the page parameters for all form component otherwise they get appended to action URL |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void process(IFormSubmitter submittingComponent) |
| { |
| // get the parameters before processing the form because the |
| // application may remove this form from its parent in #onSubmit() (WICKET-5158) |
| final PageParameters parameters = getPage().getPageParameters(); |
| |
| super.process(submittingComponent); |
| |
| if (parameters != null) |
| { |
| visitFormComponents(new IVisitor<FormComponent<?>, Void>() |
| { |
| @Override |
| public void component(final FormComponent<?> formComponent, final IVisit<Void> visit) |
| { |
| parameters.remove(formComponent.getInputName()); |
| } |
| }); |
| if (submittingComponent instanceof AbstractSubmitLink) |
| { |
| AbstractSubmitLink submitLink = (AbstractSubmitLink)submittingComponent; |
| parameters.remove(submitLink.getInputName()); |
| } |
| |
| // remove the special parameter for IRequestListener |
| List<INamedParameters.NamedPair> namedParameters = parameters.getAllNamed(); |
| Iterator<INamedParameters.NamedPair> iterator = namedParameters.iterator(); |
| while (iterator.hasNext()) |
| { |
| INamedParameters.NamedPair namedParameter = iterator.next(); |
| if (Strings.isEmpty(namedParameter.getValue())) |
| { |
| parameters.remove(namedParameter.getKey()); |
| break; |
| } |
| } |
| } |
| } |
| } |