1 /* 2 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 @bug 7004134 26 @summary JLabel containing a ToolTipText does no longer show ToolTip after browser refresh 27 @author Pavel Porvatov 28 @modules java.desktop/sun.awt 29 */ 30 31 import sun.awt.SunToolkit; 32 33 import javax.swing.*; 34 import java.awt.*; 35 import java.awt.event.MouseEvent; 36 import java.lang.reflect.Field; 37 38 public class bug7004134 { 39 private static volatile JFrame frame; 40 41 private static volatile JLabel label; 42 43 private static volatile int toolTipWidth; 44 45 public static void main(String[] args) throws Exception { 46 SwingUtilities.invokeAndWait(new Runnable() { 47 public void run() { 48 label = new JLabel("A JLabel used as object for an HTML-formatted tooltip"); 49 label.setToolTipText("<html><body bgcolor=FFFFE1>An HTML-formatted ToolTip</body></html>"); 50 51 frame = new JFrame(); 52 53 frame.add(label); 54 frame.pack(); 55 frame.setVisible(true); 56 } 57 }); 58 59 ((SunToolkit) SunToolkit.getDefaultToolkit()).realSync(); 60 61 SwingUtilities.invokeAndWait(new Runnable() { 62 public void run() { 63 ToolTipManager toolTipManager = ToolTipManager.sharedInstance(); 64 65 toolTipManager.setInitialDelay(0); 66 toolTipManager.mouseMoved(new MouseEvent(label, 0, 0, 0, 0, 0, 0, false)); 67 } 68 }); 69 70 Thread.sleep(500); 71 72 SwingUtilities.invokeAndWait(new Runnable() { 73 public void run() { 74 toolTipWidth = getTipWindow().getWidth(); 75 76 frame.dispose(); 77 } 78 }); 79 80 Thread thread = new Thread(new ThreadGroup("Some ThreadGroup"), new Runnable() { 81 public void run() { 82 SunToolkit.createNewAppContext(); 83 84 try { 85 SwingUtilities.invokeAndWait(new Runnable() { 86 public void run() { 87 frame = new JFrame(); 88 89 frame.add(label); 90 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 91 frame.pack(); 92 frame.setVisible(true); 93 } 94 }); 95 96 ((SunToolkit) SunToolkit.getDefaultToolkit()).realSync(); 97 98 SwingUtilities.invokeAndWait(new Runnable() { 99 public void run() { 100 ToolTipManager toolTipManager = ToolTipManager.sharedInstance(); 101 102 toolTipManager.setInitialDelay(0); 103 toolTipManager.mouseMoved(new MouseEvent(label, 0, 0, 0, 0, 0, 0, false)); 104 } 105 }); 106 107 Thread.sleep(500); 108 109 SwingUtilities.invokeAndWait(new Runnable() { 110 public void run() { 111 int newToolTipWidth = getTipWindow().getWidth(); 112 113 frame.dispose(); 114 115 if (toolTipWidth != newToolTipWidth) { 116 throw new RuntimeException("Tooltip width is different. Initial: " + toolTipWidth + 117 ", new: " + newToolTipWidth); 118 } 119 } 120 }); 121 } catch (Exception e) { 122 throw new RuntimeException(e); 123 } 124 125 } 126 }); 127 128 thread.start(); 129 thread.join(); 130 } 131 132 private static Component getTipWindow() { 133 try { 134 Field tipWindowField = ToolTipManager.class.getDeclaredField("tipWindow"); 135 136 tipWindowField.setAccessible(true); 137 138 Popup value = (Popup) tipWindowField.get(ToolTipManager.sharedInstance()); 139 140 Field componentField = Popup.class.getDeclaredField("component"); 141 142 componentField.setAccessible(true); 143 144 return (Component) componentField.get(value); 145 } catch (Exception e) { 146 throw new RuntimeException("getToolTipComponent failed", e); 147 } 148 } 149 }