Package org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag

Source Code of org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag.SelectOneChoiceRenderer

package org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;

/*
* 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.
*/

/*
* Created 07.02.2003 16:00:00.
* $Id: SelectOneChoiceRenderer.java 537407 2007-05-12 13:03:42Z bommel $
*/

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_DISABLED;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_READONLY;
import org.apache.myfaces.tobago.component.ComponentUtil;
import org.apache.myfaces.tobago.renderkit.HtmlUtils;
import org.apache.myfaces.tobago.renderkit.SelectOneRendererBase;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlConstants;
import org.apache.myfaces.tobago.renderkit.html.HtmlRendererUtil;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;

import javax.faces.component.UIComponent;
import javax.faces.component.UISelectOne;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import java.io.IOException;
import java.util.List;

public class SelectOneChoiceRenderer extends SelectOneRendererBase {

  private static final Log LOG = LogFactory.getLog(SelectOneChoiceRenderer.class);

  public boolean getRendersChildren() {
    return true;
  }

  public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException {
    TobagoResponseWriter writer = HtmlRendererUtil.getTobagoResponseWriter(facesContext);
    UISelectOne component = (UISelectOne) uiComponent;
    List<SelectItem> items = ComponentUtil.getSelectItems(component);

    if (LOG.isDebugEnabled()) {
      LOG.debug("items.size() = '" + items.size() + "'");
    }

    String title = HtmlRendererUtil.getTitleFromTipAndMessages(facesContext, component);

    boolean disabled = items.size() == 0
        || ComponentUtil.getBooleanAttribute(component, ATTR_DISABLED)
        || ComponentUtil.getBooleanAttribute(component, ATTR_READONLY);

    writer.startElement(HtmlConstants.SELECT, component);
    writer.writeNameAttribute(component.getClientId(facesContext));
    writer.writeIdAttribute(component.getClientId(facesContext));
    writer.writeAttribute(HtmlAttributes.DISABLED, disabled);
    writer.writeStyleAttribute();
    writer.writeClassAttribute();
    if (title != null) {
      writer.writeAttribute(HtmlAttributes.TITLE, title, true);
    }
    String onchange = HtmlUtils.generateOnchange(component, facesContext);
    if (onchange != null) {
      writer.writeAttribute(HtmlAttributes.ONCHANGE, onchange, true);
    }
    Object[] values = {component.getValue()};

    HtmlRendererUtil.renderSelectItems(component, items, values, writer, facesContext);

    writer.endElement(HtmlConstants.SELECT);
    super.encodeEnd(facesContext, component);
    checkForCommandFacet(component, facesContext, writer);
  }

  public int getComponentExtraWidth(FacesContext facesContext, UIComponent component) {
    return 0;
  }
}
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