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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;
21  
22  import org.apache.myfaces.tobago.component.Attributes;
23  import org.apache.myfaces.tobago.event.ResetFormActionListener;
24  import org.apache.myfaces.tobago.event.ResetInputActionListener;
25  import org.apache.myfaces.tobago.event.ValueExpressionResetInputActionListener;
26  import org.apache.myfaces.tobago.util.ComponentUtils;
27  
28  import javax.el.ValueExpression;
29  import javax.faces.component.ActionSource;
30  import javax.faces.component.UIComponent;
31  import javax.faces.view.facelets.ComponentHandler;
32  import javax.faces.view.facelets.FaceletContext;
33  import javax.faces.view.facelets.TagAttribute;
34  import javax.faces.view.facelets.TagConfig;
35  import javax.faces.view.facelets.TagException;
36  import javax.faces.view.facelets.TagHandler;
37  import java.io.IOException;
38  
39  public class ResetInputActionListenerHandler extends TagHandler {
40  
41    private final TagAttribute execute;
42  
43    public ResetInputActionListenerHandler(final TagConfig config) {
44      super(config);
45      execute = getAttribute(Attributes.EXECUTE);
46    }
47  
48    public void apply(final FaceletContext faceletContext, final UIComponent parent) throws IOException {
49      if (parent instanceof ActionSource) {
50        if (ComponentHandler.isNew(parent)) {
51          final ActionSource actionSource = (ActionSource) parent;
52          if (execute == null) {
53            actionSource.addActionListener(new ResetFormActionListener());
54          } else if (execute.isLiteral())  {
55            actionSource.addActionListener(new ResetInputActionListener(ComponentUtils.splitList(execute.getValue())));
56          } else {
57            final ValueExpression forValueExpression = execute.getValueExpression(faceletContext, String.class);
58            actionSource.addActionListener(new ValueExpressionResetInputActionListener(forValueExpression));
59          }
60        }
61      } else {
62        throw new TagException(tag, "Parent is not of type ActionSource, type is: " + parent);
63      }
64    }
65  }
66  
67