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 }