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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.component.SupportFieldId;
23  import org.apache.myfaces.tobago.component.SupportsAccessKey;
24  import org.apache.myfaces.tobago.component.Visual;
25  import org.apache.myfaces.tobago.util.ComponentUtils;
26  
27  import javax.faces.component.UICommand;
28  import javax.faces.component.UIComponent;
29  import javax.faces.component.UIInput;
30  import javax.faces.component.behavior.ClientBehaviorHolder;
31  import javax.faces.context.FacesContext;
32  
33  /**
34   * Base class for commands.
35   */
36  public abstract class AbstractUICommand extends AbstractUICommandBase
37      implements SupportsAccessKey, Visual, ClientBehaviorHolder, SupportFieldId {
38  
39    enum PropertyKeys {
40      disabled,
41    }
42  
43    // todo: transient
44    private Boolean parentOfCommands;
45  
46    public boolean isParentOfCommands() {
47      if (parentOfCommands == null) {
48        parentOfCommands = false;
49        for (final UIComponent child : getChildren()) {
50          if (child.isRendered()
51              && !(child instanceof AbstractUIEvent)
52              && (child instanceof UICommand || child instanceof UIInput)) {
53            parentOfCommands = true;
54            break;
55          }
56        }
57      }
58      return parentOfCommands;
59    }
60  
61    @Override
62    public abstract String getLabel();
63  
64    @Override
65    public String getFieldId(final FacesContext facesContext) {
66      if(isParentOfCommands()) {
67        return getClientId(facesContext) + ComponentUtils.SUB_SEPARATOR + "command";
68      } else {
69        return getClientId(facesContext);
70      }
71    }
72  }