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1   /*
2    * Copyright (c) 2002-2025 Gargoyle Software Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * https://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  package org.htmlunit.html;
16  
17  import java.util.EventObject;
18  
19  /**
20   * This is the event class for notifications about changes to the DOM structure.
21   *
22   * @author Ahmed Ashour
23   * @see DomChangeListener
24   */
25  public class DomChangeEvent extends EventObject {
26  
27      private final DomNode changedNode_;
28  
29      /**
30       * Constructs a new DomChangeEvent from the given parent node and a changed node.
31       *
32       * @param parentNode the parent of the node that was changed
33       * @param changedNode the node that has been added or deleted
34       */
35      public DomChangeEvent(final DomNode parentNode, final DomNode changedNode) {
36          super(parentNode);
37          changedNode_ = changedNode;
38      }
39  
40      /**
41       * Returns the parent of the node that was changed.
42       * @return the parent of the node that was changed
43       */
44      public DomNode getParentNode() {
45          return (DomNode) getSource();
46      }
47  
48      /**
49       * Returns the node that has been added or deleted.
50       * @return the node that has been added or deleted
51       */
52      public DomNode getChangedNode() {
53          return changedNode_;
54      }
55  }