/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache 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.apache.org/licenses/LICENSE-2.0
   *
   * 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.apache.myfaces.renderkit.html.ext;
  
  import java.io.IOException;
  import java.util.Iterator;
  
  import javax.faces.component.UIComponent;
  import javax.faces.component.UIData;
  import javax.faces.context.FacesContext;
  import javax.faces.context.ResponseWriter;
  import javax.faces.render.Renderer;
  
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFRenderer;
  import org.apache.myfaces.component.html.ext.AbstractHtmlDataTable;
  import org.apache.myfaces.component.html.ext.HtmlDataTable;
  import org.apache.myfaces.custom.crosstable.UIColumns;
  import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
  import org.apache.myfaces.shared_tomahawk.renderkit.html.HTML;
  
  @JSFRenderer(renderKitId = "HTML_BASIC", family = "org.apache.myfaces.HtmlDetailStampRow", type = "org.apache.myfaces.HtmlDetailStampRow")
  public class HtmlDetailStampRowRenderer extends Renderer
  {
  
      @Override
      public void encodeEnd(FacesContext facesContext, UIComponent component)
              throws IOException
      {
          super.encodeEnd(facesContext, component);
          UIData uiData = (UIData) component.getParent();
          UIComponent detailStampFacet = uiData.getFacet(AbstractHtmlDataTable.DETAIL_STAMP_FACET_NAME);
          if (uiData instanceof HtmlDataTable) {
              HtmlDataTable htmlDataTable = (HtmlDataTable) uiData;
  
              if (htmlDataTable.isCurrentDetailExpanded()) {
  
                  boolean embedded = false;
                  if (detailStampFacet != null) {
                      embedded = isEmbeddedTable(detailStampFacet);
                  }
  
                  ResponseWriter writer = facesContext.getResponseWriter();
  
                  if (!embedded) {
                      writer.startElement(HTML.TR_ELEM, uiData);
                      writer.writeAttribute(HTML.ID_ATTR, component.getClientId(facesContext), null);
                      writer.startElement(HTML.TD_ELEM, uiData);
                      //TOMAHAWK-1087 datatable dont renders a detail correct 
                      //if a UIColumns is used we have to count UIColumns 
                      //elements as component.getRowCount()
                      //instead of just get the number of children available,
                      //so the colspan could be assigned correctly.
                      int childCount = 0;
                      for (Iterator childIter = uiData.getChildren().iterator();
                          childIter.hasNext();)
                      {
                          UIComponent childComp = (UIComponent) childIter.next();
                          if (childComp instanceof UIColumns)
                          {
                              UIColumns v = (UIColumns) childComp;
                              childCount += v.getRowCount();
                          }
                          else
                          {
                              childCount++;
                          }
                      }
                      writer.writeAttribute(HTML.COLSPAN_ATTR, new Integer(
                              childCount), null);
                  }
  
                  if (detailStampFacet != null) {
                      RendererUtils.renderChild(facesContext, detailStampFacet);
                  }
  
                  if (!embedded) {
                      writer.endElement(HTML.TD_ELEM);
                      writer.endElement(HTML.TR_ELEM);
                  }
              }
              else
              {
                  boolean embedded = false;
                 if (detailStampFacet != null) {
                     embedded = isEmbeddedTable(detailStampFacet);
                 }
 
                 ResponseWriter writer = facesContext.getResponseWriter();
 
                 if (!embedded) {
                     writer.startElement(HTML.TR_ELEM, uiData);
                     writer.writeAttribute(HTML.ID_ATTR, component.getClientId(facesContext), null);
                     writer.writeAttribute(HTML.STYLE_ATTR, "display:none", null);
                     writer.endElement(HTML.TR_ELEM);
                 }
             }
         }
     }
     
     protected boolean isEmbeddedTable(UIComponent uiComponent) {
         boolean embedded = false;
         if (uiComponent instanceof HtmlDataTable) {
             HtmlDataTable table = (HtmlDataTable) uiComponent;
             embedded = table.isEmbedded();
         }
         return embedded;
     }
 
     @Override
     public boolean getRendersChildren()
     {
         return true;
     }
     
     public void encodeChildren(FacesContext context, UIComponent component) throws IOException
     {
     }
 }