content: /*
   *  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.causeway.viewer.wicket.ui.components.widgets.buttons;
  
  import java.util.List;
  
  import org.apache.wicket.Component;
  import org.apache.wicket.ajax.AjaxRequestTarget;
  import org.apache.wicket.ajax.markup.html.form.AjaxButton;
  import org.apache.wicket.markup.html.WebMarkupContainer;
  import org.apache.wicket.markup.html.form.Button;
  import org.apache.wicket.markup.html.form.Form;
  import org.apache.wicket.model.Model;
  
  import org.apache.causeway.commons.internal.collections._Lists;
  import org.apache.causeway.viewer.wicket.ui.panels.PanelAbstract;
  import org.apache.causeway.viewer.wicket.ui.util.WktComponents;
  
  /**
   * A button contained within its own form.
   */
  public class ContainedButtonPanel
  extends PanelAbstract<String, Model<String>> {
  
      private static final long serialVersionUID = 1L;
  
      private static final String ID_CONTAINER = "container";
      private static final String ID_FORM = "form";
      private static final String ID_BUTTON = "button";
  
      private final Button button;
      private final List<Component> componentsToRerender = _Lists.newArrayList();
  
      public ContainedButtonPanel(final String id, final String caption) {
          super(id, Model.of(caption));
  
          final WebMarkupContainer markupContainer = new WebMarkupContainer(ID_CONTAINER);
          add(markupContainer);
          final Form<Object> form = new Form<Object>(ID_FORM);
          markupContainer.add(form);
          button = new AjaxButton(ID_BUTTON, getModel()) {
              private static final long serialVersionUID = 1L;
  
              @Override
              protected void onSubmit(final AjaxRequestTarget target) {
                  setDefaultFormProcessing(false);
                  ContainedButtonPanel.this.onSubmit();
                  if (target != null) {
                      for (final Component component : componentsToRerender) {
                          WktComponents.addToAjaxRequest(target, component);
                      }
                  }
              }
          };
          form.add(button);
      }
  
      public void addComponentToRerender(final Component component) {
          component.setOutputMarkupPlaceholderTag(true);
          componentsToRerender.add(component);
      }
  
      public void setCaption(final String string) {
          button.setModelValue(new String[] { string });
      }
  
      public void setLabel(final Model<String> labelModel) {
          button.setLabel(labelModel);
      }
  
      /**
       * Hook method for (typically anonymous) subclasses to override.
       */
      public void onSubmit() {
      }
  
  }
  