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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.internal.component;
21  
22  import org.apache.myfaces.tobago.util.ComponentUtils;
23  
24  import javax.faces.context.FacesContext;
25  import java.io.IOException;
26  
27  /**
28   * {@link org.apache.myfaces.tobago.internal.taglib.component.SectionTagDeclaration}
29   */
30  public abstract class AbstractUISection extends AbstractUICollapsiblePanel {
31  
32    public abstract String getLabel();
33  
34    public abstract Integer getLevel();
35  
36    public abstract void setLevel(Integer level);
37  
38    public abstract String getImage();
39  
40    @Override
41    public void encodeBegin(final FacesContext context) throws IOException {
42      final Integer level = getLevel();
43      if (level == null) {
44        final AbstractUISection section = ComponentUtils.findAncestor(getParent(), AbstractUISection.class);
45        if (section != null) {
46          setLevel(section.getLevel() + 1);
47        } else {
48          setLevel(1);
49        }
50      } else if (level < 1) {
51        setLevel(1);
52      }
53  
54      super.encodeBegin(context);
55    }
56  }