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.table.nav.paging;
  
  import org.apache.wicket.AttributeModifier;
  import org.apache.wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigation;
  import org.apache.wicket.markup.html.link.Link;
  import org.apache.wicket.markup.html.list.LoopItem;
  import org.apache.wicket.markup.html.navigation.paging.IPageable;
  import org.apache.wicket.markup.html.navigation.paging.IPagingLabelProvider;
  
  class Navigation extends AjaxPagingNavigation {
  
      private static final long serialVersionUID = 1L;
  
      /** Attribute for active state */
      private final AttributeModifier activeAttribute = AttributeModifier.append("class", "active");
  
      public Navigation(final String id, final IPageable pageable, final IPagingLabelProvider labelProvider) {
          super(id, pageable, labelProvider);
      }
  
      public Navigation(final String id, final IPageable pageable) {
          super(id, pageable);
      }
  
      @Override
      protected Link<?> newPagingNavigationLink(final String id, final IPageable pageable, final long pageIndex) {
          return new NavigationLink(id, pageable, pageIndex);
      }
  
      @Override
      protected void populateItem(final LoopItem loopItem) {
          super.populateItem(loopItem);
          if ((getStartIndex() + loopItem.getIndex()) == pageable.getCurrentPage()) {
              loopItem.add(activeAttribute);
          }
      }
  }
  