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1   /**
2    * Copyright 2005-2014 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.krad.uif.widget;
17  
18  import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
19  import org.kuali.rice.krad.uif.view.HistoryEntry;
20  import org.kuali.rice.krad.uif.view.View;
21  import org.kuali.rice.krad.uif.component.Component;
22  
23  import java.util.ArrayList;
24  import java.util.HashMap;
25  import java.util.List;
26  import java.util.Map;
27  
28  /**
29   * The breadcrumb widget contains various settings for setting up
30   * Breadcrumb/History support on the view.
31   *
32   * @author Kuali Rice Team (rice.collab@kuali.org)
33   */
34  public class BreadCrumbs extends WidgetBase {
35      private static final long serialVersionUID = -2864287914665842251L;
36  
37      private boolean displayHomewardPath;
38      private boolean displayPassedHistory;
39      private boolean displayBreadcrumbsWhenOne;
40      private List<HistoryEntry> homewardPathList;
41  
42      public BreadCrumbs() {
43          homewardPathList = new ArrayList<HistoryEntry>();
44      }
45  
46      /**
47       * The following updates are done here:
48       *
49       * <ul>
50       * <li>Evaluate expression on howeward path list</li>
51       * </ul>
52       *
53       * @see org.kuali.rice.krad.uif.component.Component#performApplyModel(org.kuali.rice.krad.uif.view.View,
54       *      java.lang.Object)
55       */
56      @Override
57      public void performApplyModel(View view, Object model, Component parent) {
58          super.performApplyModel(view, model, parent);
59  
60          if (homewardPathList != null) {
61              Map<String, Object> context = new HashMap<String, Object>();
62              context.putAll(view.getContext());
63  
64              for (HistoryEntry historyEntry : homewardPathList) {
65                  KRADServiceLocatorWeb.getExpressionEvaluatorService().evaluateObjectExpressions(historyEntry, model,
66                          context);
67              }
68          }
69      }
70  
71      /**
72       * Determines if the homewardPath is to be displayed. Even when this is
73       * setting is on the code may determine to turn off homewardPath display
74       * based on user interaction and ui elements being displayed (ie lightbox)
75       *
76       * @return the displayHomewardPath
77       */
78      public boolean isDisplayHomewardPath() {
79          return this.displayHomewardPath;
80      }
81  
82      /**
83       * @param displayHomewardPath the displayHomewardPath to set
84       */
85      public void setDisplayHomewardPath(boolean displayHomewardPath) {
86          this.displayHomewardPath = displayHomewardPath;
87      }
88  
89      /**
90       * Determines if the passedHistory is to be displayed. In most cases this
91       * should not be set through the xml as this is toggled off and on through
92       * code during different ui procedures.
93       *
94       * @return the displayPassedHistory
95       */
96      public boolean isDisplayPassedHistory() {
97          return this.displayPassedHistory;
98      }
99  
100     /**
101      * @param displayPassedHistory the displayPassedHistory to set
102      */
103     public void setDisplayPassedHistory(boolean displayPassedHistory) {
104         this.displayPassedHistory = displayPassedHistory;
105     }
106 
107     /**
108      * The homewardPath to be displayed on this representative of the logical
109      * "location" of the view within the site hierarchy, can be set to anything
110      * desired.
111      *
112      * @return the homewardPathList
113      */
114     public List<HistoryEntry> getHomewardPathList() {
115         return this.homewardPathList;
116     }
117 
118     /**
119      * @param homewardPathList the homewardPathList to set
120      */
121     public void setHomewardPathList(List<HistoryEntry> homewardPathList) {
122         this.homewardPathList = homewardPathList;
123     }
124 
125     /**
126      * If true, breadcrumbs will not be displayed if only one breadcrumb is
127      * going to be shown, this improves visual clarity of the page
128      *
129      * @return the displayBreadcrumbsWhenOne
130      */
131     public boolean isDisplayBreadcrumbsWhenOne() {
132         return this.displayBreadcrumbsWhenOne;
133     }
134 
135     /**
136      * @param displayBreadcrumbsWhenOne the displayBreadcrumbsWhenOne to set
137      */
138     public void setDisplayBreadcrumbsWhenOne(boolean displayBreadcrumbsWhenOne) {
139         this.displayBreadcrumbsWhenOne = displayBreadcrumbsWhenOne;
140     }
141 
142 }