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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.javascript.host.event;
16  
17  import org.htmlunit.corejs.javascript.ScriptableObject;
18  import org.htmlunit.javascript.JavaScriptEngine;
19  import org.htmlunit.javascript.configuration.JsxClass;
20  import org.htmlunit.javascript.configuration.JsxConstructor;
21  import org.htmlunit.javascript.configuration.JsxFunction;
22  import org.htmlunit.javascript.configuration.JsxGetter;
23  
24  /**
25   * A JavaScript object for {@code CustomEvent}.
26   *
27   * @author Ahmed Ashour
28   * @author Ronald Brill
29   */
30  @JsxClass
31  public class CustomEvent extends Event {
32  
33      /** The data passed when initializing the event. */
34      private Object detail_;
35  
36      /**
37       * JavaScript constructor.
38       *
39       * @param type the event type
40       * @param details the event details (optional)
41       */
42      @Override
43      @JsxConstructor
44      public void jsConstructor(final String type, final ScriptableObject details) {
45          super.jsConstructor(JavaScriptEngine.toString(type), details);
46  
47          if (details != null && !JavaScriptEngine.isUndefined(details)) {
48              final Object detail = details.get("detail", details);
49              if (NOT_FOUND != detail) {
50                  detail_ = detail;
51              }
52          }
53      }
54  
55      /**
56       * Implementation of the DOM Level 2 Event method for initializing the mouse event.
57       *
58       * @param type the event type
59       * @param bubbles can the event bubble
60       * @param cancelable can the event be canceled
61       * @param detail the detail to set for the event
62       */
63      @JsxFunction
64      public void initCustomEvent(
65              final String type,
66              final boolean bubbles,
67              final boolean cancelable,
68              final Object detail) {
69          initEvent(type, bubbles, cancelable);
70          detail_ = detail;
71      }
72  
73      /**
74       * Returns any data passed when initializing the event.
75       * @return any data passed when initializing the event
76       */
77      @JsxGetter
78      public Object getDetail() {
79          return detail_;
80      }
81  }