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.layout.bs.col;
  
  import org.apache.wicket.Component;
  import org.apache.wicket.MarkupContainer;
  import org.apache.wicket.markup.repeater.RepeatingView;
  
  import org.apache.causeway.viewer.wicket.ui.panels.HasDynamicallyVisibleContent;
  
  public class RepeatingViewWithDynamicallyVisibleContent
  extends RepeatingView
  implements HasDynamicallyVisibleContent {
  
      private static final long serialVersionUID = 1L;
  
      public RepeatingViewWithDynamicallyVisibleContent(final String id) {
          super(id);
      }
  
      @Override
      public MarkupContainer add(final Component... children) {
          final MarkupContainer component = super.add(children);
          for (Component child : children) {
              if(child instanceof HasDynamicallyVisibleContent) {
                  final HasDynamicallyVisibleContent hasDynamicallyVisibleContent = (HasDynamicallyVisibleContent) child;
                  visible = visible || hasDynamicallyVisibleContent.isVisible();
              } else {
                  visible = true;
              }
          }
          return component;
      }
  
      private boolean visible = false;
  
      @Override
      public boolean isVisible() {
          return visible;
      }
  
  }
  