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