/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * Licensed 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.seasar.teeda.core.render.html;

 import java.io.IOException;

 import java.util.Iterator;

 import javax.faces.application.FacesMessage;

 import javax.faces.component.UIComponent;

 import javax.faces.component.html.HtmlMessages;

 import javax.faces.context.FacesContext;

 import javax.faces.context.ResponseWriter;

 import org.seasar.teeda.core.JsfConstants;

 import org.seasar.teeda.core.util.RendererUtil;

 /**

  * @author manhole

  */

 public class HtmlMessagesRenderer extends AbstractHtmlMessagesRenderer {

     public static final String COMPONENT_FAMILY = "javax.faces.Messages";

     public static final String RENDERER_TYPE = "javax.faces.Messages";

     public void encodeEnd(FacesContext context, UIComponent component)

             throws IOException {

         assertNotNull(context, component);

         if (!component.isRendered()) {

             return;

         }

         encodeHtmlMessagesEnd(context, (HtmlMessages) component);

     }

     protected void encodeHtmlMessagesEnd(FacesContext context,

             HtmlMessages htmlMessages) throws IOException {

         ResponseWriter writer = context.getResponseWriter();

         Iterator it;

         if (htmlMessages.isGlobalOnly()) {

             it = context.getMessages(null);

         } else {

             it = context.getMessages();

         }

         if (!it.hasNext()) {

             return;

         }

         final boolean tableLayout = isTableLayout(htmlMessages);

         if (tableLayout) {

             writer.startElement(JsfConstants.TABLE_ELEM, htmlMessages);

         } else {

             writer.startElement(JsfConstants.UL_ELEM, htmlMessages);

         }

         RendererUtil.renderIdAttributeIfNecessary(writer, htmlMessages,

                 getIdForRender(context, htmlMessages));

         while (it.hasNext()) {

             if (tableLayout) {

                 writer.startElement(JsfConstants.TR_ELEM, htmlMessages);

                 writer.startElement(JsfConstants.TD_ELEM, htmlMessages);

             } else {

                 writer.startElement(JsfConstants.LI_ELEM, htmlMessages);

             }

             FacesMessage facesMassage = (FacesMessage) it.next();

             renderOneMessage(context, htmlMessages, facesMassage, null,

                     htmlMessages.getAttributes());

             if (tableLayout) {

                 writer.endElement(JsfConstants.TD_ELEM);

                 writer.endElement(JsfConstants.TR_ELEM);

             } else {

                 writer.endElement(JsfConstants.LI_ELEM);

             }

         }

         if (tableLayout) {

             writer.endElement(JsfConstants.TABLE_ELEM);

         } else {

             writer.endElement(JsfConstants.UL_ELEM);

         }

     }

     protected boolean isTableLayout(HtmlMessages htmlMessages) {

         return JsfConstants.TABLE_VALUE.equals(htmlMessages.getLayout());

     }

 }