/*

  * 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.Map;

 import javax.faces.component.UIComponent;

 import javax.faces.component.html.HtmlSelectBooleanCheckbox;

 import javax.faces.context.FacesContext;

 import javax.faces.context.ResponseWriter;

 import javax.faces.internal.IgnoreAttribute;

 import org.seasar.teeda.core.JsfConstants;

 import org.seasar.teeda.core.render.AbstractRenderer;

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

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

 /**

  * @author manhole

  */

 public class HtmlSelectBooleanCheckboxRenderer extends AbstractRenderer {

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

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

     private final IgnoreAttribute ignoreComponent = new IgnoreAttribute();

     {

         ignoreComponent.addAttributeName(JsfConstants.ID_ATTR);

         ignoreComponent.addAttributeName(JsfConstants.VALUE_ATTR);

         ignoreComponent.addAttributeName(JsfConstants.SELECTED_ATTR);

         ignoreComponent.addAttributeName(JsfConstants.NAME_ATTR);

         ignoreComponent.addAttributeName(JsfConstants.TYPE_ATTR);

         ignoreComponent.addAttributeName(JsfConstants.CHECKED_ATTR);

     }

     public void encodeEnd(FacesContext context, UIComponent component)

             throws IOException {

         assertNotNull(context, component);

         if (!component.isRendered()) {

             return;

         }

         encodeHtmlSelectBooleanCheckboxEnd(context,

                 (HtmlSelectBooleanCheckbox) component);

     }

     protected void encodeHtmlSelectBooleanCheckboxEnd(FacesContext context,

             HtmlSelectBooleanCheckbox htmlSelectBooleanCheckbox)

             throws IOException {

         ResponseWriter writer = context.getResponseWriter();

         writer.startElement(JsfConstants.INPUT_ELEM, htmlSelectBooleanCheckbox);

         RendererUtil.renderAttribute(writer, JsfConstants.TYPE_ATTR,

                 JsfConstants.CHECKBOX_VALUE);

         RendererUtil.renderIdAttributeIfNecessary(writer,

                 htmlSelectBooleanCheckbox, getIdForRender(context,

                         htmlSelectBooleanCheckbox));

         RendererUtil.renderAttribute(writer, JsfConstants.NAME_ATTR,

                 htmlSelectBooleanCheckbox.getClientId(context));

         RendererUtil.renderAttribute(writer, JsfConstants.VALUE_ATTR,

                 Boolean.TRUE);

         String value = ValueHolderUtil.getValueForRender(context,

                 htmlSelectBooleanCheckbox);

         if (isChecked(value)) {

             renderCheckedAttribute(writer);

         }

         renderRemainAttributes(htmlSelectBooleanCheckbox, writer,

                 ignoreComponent);

         writer.endElement(JsfConstants.INPUT_ELEM);

     }

     private boolean isChecked(String value) {

         return "true".equalsIgnoreCase(value);

     }

     public void decode(FacesContext context, UIComponent component) {

         assertNotNull(context, component);

         decodeHtmlSelectBooleanCheckbox(context,

                 (HtmlSelectBooleanCheckbox) component);

     }

     protected void decodeHtmlSelectBooleanCheckbox(FacesContext context,

             HtmlSelectBooleanCheckbox htmlSelectBooleanCheckbox) {

         if (isChecked(context, htmlSelectBooleanCheckbox)) {

             htmlSelectBooleanCheckbox

                     .setSubmittedValue(Boolean.TRUE.toString());

         } else {

             htmlSelectBooleanCheckbox.setSubmittedValue(Boolean.FALSE

                     .toString());

         }

     }

     private boolean isChecked(FacesContext context, UIComponent component) {

         Map paramMap = context.getExternalContext().getRequestParameterMap();

         String clientId = component.getClientId(context);

         if (paramMap.containsKey(clientId)) {

             String value = (String) paramMap.get(clientId);

             return "on".equalsIgnoreCase(value)

                     || "yes".equalsIgnoreCase(value) || isChecked(value);

         }

         return false;

     }

     public void addIgnoreAttributeName(final String name) {

         ignoreComponent.addAttributeName(name);

     }

 }