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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.facelets.extension;
21  
22  import org.apache.myfaces.tobago.component.Attributes;
23  import org.apache.myfaces.tobago.component.RendererTypes;
24  import org.apache.myfaces.tobago.component.UISelectBooleanCheckbox;
25  
26  import javax.el.ValueExpression;
27  import javax.faces.component.UIComponent;
28  import javax.faces.view.facelets.ComponentConfig;
29  import javax.faces.view.facelets.FaceletContext;
30  import javax.faces.view.facelets.TagAttribute;
31  
32  public class SelectBooleanCheckboxExtensionHandler extends TobagoLabelExtensionHandler {
33  
34    private TagAttribute itemLabelAttribute;
35  
36    public SelectBooleanCheckboxExtensionHandler(final ComponentConfig config) {
37      super(config);
38      itemLabelAttribute = getAttribute(Attributes.ITEM_LABEL);
39    }
40  
41    protected void enrichInput(final FaceletContext faceletContext, final UIComponent input) {
42      super.enrichInput(faceletContext, input);
43      final UISelectBooleanCheckbox checkbox = (UISelectBooleanCheckbox) input;
44      if (itemLabelAttribute != null) {
45        if (itemLabelAttribute.isLiteral()) {
46          checkbox.setItemLabel(itemLabelAttribute.getValue(faceletContext));
47        } else {
48          final ValueExpression expression = itemLabelAttribute.getValueExpression(faceletContext, String.class);
49          checkbox.setValueExpression(Attributes.ITEM_LABEL, expression);
50        }
51      } else {
52        checkbox.setItemLabel(""); // for compatibility (TOBAGO-1093)
53      }
54    }
55  
56    protected String getSubComponentType() {
57      return UISelectBooleanCheckbox.COMPONENT_TYPE;
58    }
59  
60    protected String getSubRendererType() {
61      return RendererTypes.SELECT_BOOLEAN_CHECKBOX;
62    }
63  }