1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.log4j.chainsaw;
19
20 import java.awt.event.MouseAdapter;
21 import java.awt.event.MouseEvent;
22
23 import javax.swing.JPopupMenu;
24
25
26 /***
27 *
28 * Ensures that a specific popupMenu is displayed when the relevant
29 * mouse events are trapped.
30 *
31 * @author Scott Deboy <sdeboy@apache.org>
32 * @author Paul Smith <psmith@apache.org>
33 *
34 */
35 public class PopupListener extends MouseAdapter {
36 final JPopupMenu popupMenu;
37
38 public PopupListener(JPopupMenu popupMenu) {
39 this.popupMenu = popupMenu;
40 }
41
42 public void mousePressed(MouseEvent e) {
43 checkPopup(e);
44 }
45
46 public void mouseReleased(MouseEvent e) {
47 checkPopup(e);
48 }
49
50 public void mouseClicked(MouseEvent e)
51 {
52 checkPopup(e);
53 }
54
55 private void checkPopup(MouseEvent e) {
56 if (e.isPopupTrigger()) {
57 popupMenu.show(e.getComponent(), e.getX(), e.getY());
58 }
59 }
60 }