/**
    * Copyright 2005-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.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.kuali.rice.edl.impl.components;
  
  import org.kuali.rice.edl.impl.EDLContext;
  import org.kuali.rice.edl.impl.EDLModelComponent;
  import org.kuali.rice.edl.impl.EDLXmlUtils;
  import org.kuali.rice.edl.impl.RequestParser;
  import org.kuali.rice.kew.api.WorkflowDocument;
  import org.w3c.dom.Document;
  import org.w3c.dom.Element;
  import org.w3c.dom.Node;
  
  
  /**
   * This class makes xml for the instructions template of widgets.  Processes config elements
   * instructions and createInstructions.
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   *
   */
  public class InstructionsEDLComponent implements EDLModelComponent {
  
  	public void updateDOM(Document dom, Element configElement, EDLContext edlContext) {
  		
  		Element edlElement = EDLXmlUtils.getEDLContent(dom, false);
  		Element edlSubElement = EDLXmlUtils.getOrCreateChildElement(edlElement, "edl", true);
  		WorkflowDocument document = (WorkflowDocument)edlContext.getRequestParser().getAttribute(RequestParser.WORKFLOW_DOCUMENT_SESSION_KEY);
  		edlSubElement.setAttribute("title", document.getTitle());
  		
  		if(configElement.getTagName().equals("instructions")) {
  			Node instTextNode = configElement.getChildNodes().item(0);
  			if (instTextNode == null) {
  				return ;
  			}
  			String instructions = instTextNode.getNodeValue(); 
  			EDLXmlUtils.createTextElementOnParent(edlSubElement, "instructions", instructions);
  			edlElement.setAttribute("title", instructions);	
  		} else if (configElement.getTagName().equals("createInstructions")) {
  			Node instTextNode = configElement.getChildNodes().item(0);
  			if (instTextNode == null) {
  				return ;
  			}
  			String instructions = instTextNode.getNodeValue();
  			EDLXmlUtils.createTextElementOnParent(edlSubElement, "createInstructions", instructions);	
  		}
  	}
  
  }