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The private implementation classes of the Apache MyFaces Core JSF-2.0 Implementation
/*
* 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;
/**
* @author Thomas Spiegl (latest modification by $Author: lu4242 $)
* @author Anton Koinov
* @version $Revision: 1151677 $ $Date: 2011-07-27 19:03:59 -0500 (Wed, 27 Jul 2011) $
*/
public class HtmlListboxRendererBase
extends HtmlRenderer
{
public void encodeEnd(FacesContext facesContext, UIComponent uiComponent)
throws IOException
{
org.apache.myfaces.shared.renderkit.RendererUtils.checkParamValidity(facesContext, uiComponent, null);
Map> 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)
{
HtmlRendererUtils.renderListbox(facesContext,
(UISelectMany)uiComponent,
isDisabled(facesContext, uiComponent),
size, getConverter(facesContext, uiComponent));
}
else if (uiComponent instanceof HtmlSelectOneListbox)
{
HtmlRendererUtils.renderListbox(facesContext,
(UISelectOne)uiComponent,
isDisabled(facesContext, uiComponent),
size, getConverter(facesContext, uiComponent));
}
else
{
throw new IllegalArgumentException("Unsupported component class " + uiComponent.getClass().getName());
}
}
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;
}
}