ItemEventTest.java revision 14851:980da45565c8
1/* 2 * Copyright (c) 2016, 2016, 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/* 25 * @test 26 * @key headful 27 * @bug 8033936 28 * @summary Verify that correct ItemEvent is received while selection & 29 * deselection of multi select List items. 30 */ 31 32import java.awt.AWTException; 33import java.awt.Event; 34import java.awt.FlowLayout; 35import java.awt.Frame; 36import java.awt.List; 37import java.awt.Point; 38import java.awt.Rectangle; 39import java.awt.Robot; 40import java.awt.event.KeyEvent; 41import java.awt.event.InputEvent; 42import java.awt.event.ItemEvent; 43import java.awt.event.ItemListener; 44 45public class ItemEventTest extends Frame 46{ 47 List list; 48 final String expectedSelectionOrder; 49 StringBuilder actualSelectionOrder; 50 Robot robot; 51 52 public ItemEventTest() 53 { 54 try { 55 robot = new Robot(); 56 } catch(AWTException e) { 57 throw new RuntimeException(e.getMessage()); 58 } 59 expectedSelectionOrder = "01230123"; 60 61 list = new List(4, true); 62 list.add("0"); 63 list.add("1"); 64 list.add("2"); 65 list.add("3"); 66 67 add(list); 68 setSize(400,400); 69 setLayout(new FlowLayout()); 70 pack(); 71 setVisible(true); 72 robot.waitForIdle(); 73 } 74 75 @Override 76 public boolean handleEvent(Event e) { 77 if (e.target instanceof List) { 78 if (e.id == Event.LIST_DESELECT || e.id == Event.LIST_SELECT) { 79 actualSelectionOrder.append(e.arg); 80 } 81 } 82 return true; 83 } 84 85 void testHandleEvent() { 86 // When no ItemListener is added to List, parent's handleEvent is 87 // called with ItemEvent. 88 performTest(); 89 } 90 91 void testItemListener() { 92 list.addItemListener(new ItemListener() { 93 @Override 94 public void itemStateChanged(ItemEvent ie) { 95 actualSelectionOrder.append(ie.getItem()); 96 } 97 }); 98 performTest(); 99 } 100 101 void performTest() { 102 actualSelectionOrder = new StringBuilder(); 103 Point loc = list.getLocationOnScreen(); 104 Rectangle rect = list.getBounds(); 105 int dY = rect.height / list.getItemCount(); 106 loc = new Point(loc.x + 10, loc.y + 5); 107 108 String osName = System.getProperty("os.name"); 109 boolean isMac = osName.contains("Mac") || osName.contains("mac"); 110 if(isMac) { 111 robot.keyPress(KeyEvent.VK_META); 112 } 113 114 // First loop to select & Second loop to deselect the list items. 115 for (int j = 0; j < 2; ++j) { 116 for (int i = 0; i < list.getItemCount(); ++i) { 117 robot.mouseMove(loc.x, loc.y + i * dY); 118 robot.mousePress(InputEvent.BUTTON1_MASK); 119 robot.delay(100); 120 robot.mouseRelease(InputEvent.BUTTON1_MASK); 121 robot.waitForIdle(); 122 } 123 } 124 125 if(isMac) { 126 robot.keyRelease(KeyEvent.VK_META); 127 } 128 129 if (!expectedSelectionOrder.equals(actualSelectionOrder.toString())) { 130 dispose(); 131 throw new RuntimeException("ItemEvent for selection & deselection" 132 + " of multi select List's item is not correct" 133 + " Expected : " + expectedSelectionOrder 134 + " Actual : " + actualSelectionOrder); 135 } 136 } 137 138 public static void main(String args[]) { 139 ItemEventTest test = new ItemEventTest(); 140 test.testHandleEvent(); 141 test.testItemListener(); 142 test.dispose(); 143 } 144} 145