/*

  * 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.shared.renderkit.html;

 import org.apache.myfaces.shared.renderkit.JSFAttr;

 import org.apache.myfaces.shared.renderkit.RendererUtils;

 import org.apache.myfaces.shared.renderkit.html.util.ResourceUtils;

 import javax.faces.component.UIComponent;

 import javax.faces.component.UISelectMany;

 import javax.faces.component.UISelectOne;

 import javax.faces.component.behavior.ClientBehavior;

 import javax.faces.component.behavior.ClientBehaviorHolder;

 import javax.faces.component.html.HtmlSelectManyListbox;

 import javax.faces.component.html.HtmlSelectOneListbox;

 import javax.faces.context.FacesContext;

 import javax.faces.convert.Converter;

 import javax.faces.convert.ConverterException;

 import java.io.IOException;

 import java.util.List;

 import java.util.Map;

 public class HtmlListboxRendererBase

         extends HtmlSelectableRendererBase

 {

     public void encodeEnd(FacesContext facesContext, UIComponent uiComponent)

             throws IOException

     {

         org.apache.myfaces.shared.renderkit.RendererUtils.checkParamValidity(facesContext, uiComponent, null);

         Map<String, List<ClientBehavior>> behaviors = null;

         if (uiComponent instanceof ClientBehaviorHolder)

         {

             behaviors = ((ClientBehaviorHolder) uiComponent).getClientBehaviors();

             if (!behaviors.isEmpty())

             {

                 ResourceUtils.renderDefaultJsfJsInlineIfNecessary(

                         facesContext, facesContext.getResponseWriter());

             }

         }

         Integer size = (Integer)uiComponent.getAttributes().get(JSFAttr.SIZE_ATTR);

         if (size == null)

         {

             size = Integer.MIN_VALUE;

         }

         if (uiComponent instanceof UISelectMany)

         {

             renderListbox(facesContext,

                                             (UISelectMany)uiComponent,

                                             isDisabled(facesContext, uiComponent),

                                             size, getConverter(facesContext, uiComponent));

         }

         else if (uiComponent instanceof HtmlSelectOneListbox)

         {

             renderListbox(facesContext,

                                             (UISelectOne)uiComponent,

                                             isDisabled(facesContext, uiComponent),

                                             size, getConverter(facesContext, uiComponent));

         }

         else

         {

             throw new IllegalArgumentException("Unsupported component class " + uiComponent.getClass().getName());

         }

     }

     protected void renderListbox(FacesContext facesContext,

             UISelectOne selectOne, boolean disabled, int size,

             Converter converter) throws IOException

     {

         internalRenderSelect(facesContext, selectOne, disabled, size, false,

                 converter);

     }

     protected void renderListbox(FacesContext facesContext,

             UISelectMany selectMany, boolean disabled, int size,

             Converter converter) throws IOException

     {

         internalRenderSelect(facesContext, selectMany, disabled, size, true,

                 converter);

     }

     protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent)

     {

         //TODO: overwrite in extended HtmlListboxRenderer and check for enabledOnUserRole

         if (uiComponent instanceof HtmlSelectManyListbox)

         {

             return ((HtmlSelectManyListbox)uiComponent).isDisabled();

         }

         else if (uiComponent instanceof HtmlSelectOneListbox)

         {

             return ((HtmlSelectOneListbox)uiComponent).isDisabled();

         }

         else

         {

             return org.apache.myfaces.shared.renderkit.RendererUtils.getBooleanAttribute(uiComponent, 

                     org.apache.myfaces.shared.renderkit.html.HTML.DISABLED_ATTR, false);

         }

     }

     public void decode(FacesContext facesContext, UIComponent uiComponent)

     {

         RendererUtils.checkParamValidity(facesContext, uiComponent, null);

         if (uiComponent instanceof UISelectMany)

         {

             HtmlRendererUtils.decodeUISelectMany(facesContext, uiComponent);

         }

         else if (uiComponent instanceof UISelectOne)

         {

             HtmlRendererUtils.decodeUISelectOne(facesContext, uiComponent);

         }

         else

         {

             throw new IllegalArgumentException("Unsupported component class " + uiComponent.getClass().getName());

         }

         if (uiComponent instanceof ClientBehaviorHolder &&

                 !HtmlRendererUtils.isDisabled(uiComponent))

         {

             HtmlRendererUtils.decodeClientBehaviors(facesContext, uiComponent);

         }

     }

     public Object getConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object submittedValue)

          throws ConverterException

     {

         org.apache.myfaces.shared.renderkit.RendererUtils.checkParamValidity(facesContext, uiComponent, null);

         if (uiComponent instanceof UISelectMany)

         {

             return org.apache.myfaces.shared.renderkit.RendererUtils.getConvertedUISelectManyValue(facesContext,

                                                                (UISelectMany)uiComponent,

                                                                submittedValue);

         }

         else if (uiComponent instanceof UISelectOne)

         {

             return RendererUtils.getConvertedUISelectOneValue(facesContext,

                                                            (UISelectOne)uiComponent,

                                                            submittedValue);

         }

         else

         {

             throw new IllegalArgumentException("Unsupported component class " + uiComponent.getClass().getName());

         }

     }

     /**

      * Gets the converter for the given component rendered by this renderer.

      * @param facesContext

      * @param component

      * @return

      */

     protected Converter getConverter(FacesContext facesContext,

             UIComponent component)

     {

         if (component instanceof UISelectMany)

         {

             return HtmlRendererUtils.findUISelectManyConverterFailsafe(facesContext, 

                     (UISelectMany) component);

         }

         else if (component instanceof UISelectOne)

         {

             return HtmlRendererUtils.findUIOutputConverterFailSafe(facesContext, component);

         }

         return null;

     }

 }