View Javadoc

1   /**
2    * This file Copyright (c) 2008-2012 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.module.templatingkit.navigation;
35  
36  import java.util.List;
37  
38  import javax.jcr.Node;
39  import javax.jcr.RepositoryException;
40  
41  /**
42   * Component used in the rendering script (freemarker,...) to
43   * display a navidation tree. Returned by SiteMapParagraphModel.
44   * @author pbracher
45   * @version $Id$
46   *
47   */
48  
49  public class NavigationModel extends SubNavigation {
50  
51      private Node selectedNode;
52      private boolean rootIsHome;
53      private Home home;
54  
55      public NavigationModel(Node root, Node selectedNode, int depth, boolean allOpen, boolean rootIsHome){
56          super(root, null, depth, allOpen);
57          this.selectedNode = selectedNode;
58          this.rootIsHome = rootIsHome;
59          if(rootIsHome){
60              home = new Home(content, this);
61          }
62      }
63  
64      @Override
65      public List<NavigationItem> getItems() throws RepositoryException {
66          final List<NavigationItem> items = super.getItems();
67          if(rootIsHome && home.isVisible()){
68              items.add(0, home);
69          }
70          return items;
71      }
72  
73      protected Node getSelectedNode() {
74          return this.selectedNode;
75      }
76  
77      public NavigationItem getSelectedItem() throws RepositoryException{
78          final NavigationItem selectedItem = _getSelectedItem(getItems());
79          if(selectedItem == null && rootIsHome){
80              return home;
81          }
82          return selectedItem;
83      }
84  
85      private NavigationItem _getSelectedItem(List<NavigationItem> items) throws RepositoryException {
86          for (NavigationItem item : items) {
87              if(item.isSelected()){
88                  return item;
89              }
90              else if(selectedNode.getPath().startsWith(item.getContent().getJCRNode().getPath())){
91                  if(item.isLeaf()){
92                      // once we don't find a menu point we still fall back on the home
93                      // otherwise the home would always match because content wise it is the shared parent
94                      if(!(item.equals(home))){
95                          return item;
96                      }
97                  }
98                  NavigationItem found = _getSelectedItem(item.getItems());
99                  if(found != null){
100                     return found;
101                 }
102             }
103         }
104         return null;
105     }
106 }