/*

  * Copyright 2005-2008 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.kew.actionlist.web;

 import org.displaytag.decorator.TableDecorator;

 import org.kuali.rice.kew.actionitem.ActionItemActionListExtension;

 import org.kuali.rice.kew.actionlist.DisplayParameters;

 import org.kuali.rice.kew.util.KEWConstants;

 /**

  * Class used to decorate table rows generated by our table tag lib.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ActionListDecorator extends TableDecorator {

     private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ActionListDecorator.class);

     private int rowCounter = 0;

     @Override

     public String startRow() {

          return "";

     }

     @Override

     public String finishRow() {

         ActionItemActionListExtension actionItem = (ActionItemActionListExtension) getCurrentRowObject();

         String returnRow = "";

         try {

                 DisplayParameters displayParameters = actionItem.getDisplayParameters();

             if (displayParameters != null) {

                 Integer index = actionItem.getActionItemIndex();

                 Integer frameHeight = new Integer(290);

                 try {

                     if (displayParameters.getFrameHeight() != null && displayParameters.getFrameHeight() > 0) {

                         frameHeight = displayParameters.getFrameHeight();

                     }

                 } catch (Exception ex) {

                     LOG.error("Error getting custom action list frame height.", ex);

                 }

                 StringBuffer newRow = new StringBuffer();

                 newRow.append("<tr id='G");

                 newRow.append(index.toString());

                 newRow.append("' style='display: none;'>");

                 newRow.append("<td class='white' height='0' colspan='11' >");

                 newRow.append("<iframe name='iframeAL_");

                 newRow.append(index.toString());

                 newRow.append("' scrolling='yes' width=100% height=");

                 newRow.append(frameHeight.toString());

                 newRow.append(" hspace=0 vspace=0 frameborder=0></iframe>");

                 newRow.append("</td></tr>");

                 returnRow += newRow.toString();

             }

         } catch (Exception e) {

             LOG.error("Error with custom action list attribute.", e);

         }

         return returnRow;

     }

     /**

      * Adds a CSS class to the current row based on the value of the row object's rowStyleClass attribute.

      * 

      * @see org.displaytag.decorator.TableDecorator#addRowClass()

      */

     @Override

     public String addRowClass() {

             ActionItemActionListExtension actionItem = (ActionItemActionListExtension) getCurrentRowObject();

             return "actionlist_" + KEWConstants.ACTION_LIST_COLOR_NAMES.get(actionItem.getRowStyleClass());

     }

         /**

          * Adds a unique ID to this row that allows JavaScript to add mouse event listeners at run-time. This is necessary because the action list's

          * display:table tag does not allow event handlers to be specified for the row elements.

          * 

          * @see org.displaytag.decorator.TableDecorator#addRowId()

          */

         @Override

         public String addRowId() {

                 return "actionlist_tr_" + rowCounter++;

         }

         /**

          * Resets the row index counter after all rows have been added to the table.

          * 

          * @see org.displaytag.decorator.TableDecorator#finish()

          */

         @Override

         public void finish() {

                 super.finish();

                 rowCounter = 0;

         }

 }