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.io.Serializable;
18
19 /**
20 * Implementations of this interface receive notifications of changes to the attribute
21 * list on the HtmlElement.
22 *
23 * @author Ahmed Ashour
24 * @see HtmlAttributeChangeEvent
25 */
26 public interface HtmlAttributeChangeListener extends Serializable {
27
28 /**
29 * Notification that a new attribute was added to the HtmlElement. Called after the attribute is added.
30 *
31 * @param event the attribute change event
32 */
33 void attributeAdded(HtmlAttributeChangeEvent event);
34
35 /**
36 * Notification that an existing attribute has been removed from the HtmlElement.
37 * Called after the attribute is removed.
38 *
39 * @param event the attribute change event
40 */
41 void attributeRemoved(HtmlAttributeChangeEvent event);
42
43 /**
44 * Notification that an attribute on the HtmlElement has been replaced. Called after the attribute is replaced.
45 *
46 * @param event the attribute change event
47 */
48 void attributeReplaced(HtmlAttributeChangeEvent event);
49
50 }