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 javax.swing.*;
21 import java.awt.event.MouseAdapter;
22 import java.awt.event.MouseEvent;
23
24
25 /**
26 * Ensures that a specific popupMenu is displayed when the relevant
27 * mouse events are trapped.
28 *
29 * @author Scott Deboy <sdeboy@apache.org>
30 * @author Paul Smith <psmith@apache.org>
31 */
32 public class PopupListener extends MouseAdapter {
33 final JPopupMenu popupMenu;
34
35 public PopupListener(JPopupMenu popupMenu) {
36 this.popupMenu = popupMenu;
37 }
38
39 public void mousePressed(MouseEvent e) {
40 checkPopup(e);
41 }
42
43 public void mouseReleased(MouseEvent e) {
44 checkPopup(e);
45 }
46
47 public void mouseClicked(MouseEvent e) {
48 checkPopup(e);
49 }
50
51 private void checkPopup(MouseEvent e) {
52 if (e.isPopupTrigger()) {
53 popupMenu.show(e.getComponent(), e.getX(), e.getY());
54 }
55 }
56 }