/**********************************************************************************
 * $URL: https://source.sakaiproject.org/svn/help/tags/sakai_2-3-1/help-tool/src/java/org/sakaiproject/tool/help/TOCDisplayTool.java $
 * $Id: TOCDisplayTool.java 7653 2006-04-12 12:10:02Z marquard@ched.uct.ac.za $
 ***********************************************************************************
 *
 * Copyright (c) 2003, 2004 The Sakai Foundation.
 * 
 * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php
 * 
 * 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.sakaiproject.tool.help;

import javax.faces.context.FacesContext;
import javax.faces.el.VariableResolver;

import org.sakaiproject.api.app.help.TableOfContents;

/**
 * toc display tool
 * @version $Id: TOCDisplayTool.java 7653 2006-04-12 12:10:02Z marquard@ched.uct.ac.za $
 */
public class TOCDisplayTool
{
  private TableOfContents tableOfContents;

  /**
   * get table of contents
   * @return Returns the tableOfContents.
   */
  public TableOfContents getTableOfContents()
  {
    if (tableOfContents == null)
    {
      FacesContext facesContext = FacesContext.getCurrentInstance();
      VariableResolver resolver = facesContext.getApplication()
          .getVariableResolver();
      tableOfContents = ((TableOfContentsTool) resolver.resolveVariable(
          facesContext, "TableOfContentsTool")).getTableOfContents();
    }
    return tableOfContents;
  }

}