1 /* 2 * Copyright (c) 2012, 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 4028580 27 * @summary TextArea does not send TextEvent when setText. Does for insert 28 * @author kdm@sparc.spb.su: area= awt.TextAvent 29 * @run main TextEventSequenceTest 30 */ 31 import java.awt.*; 32 import java.awt.event.*; 33 34 public class TextEventSequenceTest { 35 36 private static Frame f; 37 private static TextField tf; 38 private static TextArea t; 39 private static int cntEmptyStrings = 0; 40 private static int cntNonEmptyStrings = 0; 41 42 public static void main(String[] args) { 43 44 test("non-empty text string"); 45 test(""); 46 test(null); 47 } 48 49 private static void test(String test) { 50 51 Robot robot; 52 try { 53 robot = new Robot(); 54 }catch(Exception ex) { 55 ex.printStackTrace(); 56 throw new RuntimeException("Unexpected failure"); 57 } 58 59 createAndShowGUI(test); 60 robot.waitForIdle(); 61 62 initCounts(); 63 t.setText("Hello "); 64 robot.waitForIdle(); 65 t.append("World! !"); 66 robot.waitForIdle(); 67 t.insert("from Roger Pham", 13); 68 robot.waitForIdle(); 69 t.replaceRange("Java Duke", 18, 28); 70 robot.waitForIdle(); 71 checkCounts(0, 4); 72 73 initCounts(); 74 t.setText(""); 75 robot.waitForIdle(); 76 t.setText(""); 77 robot.waitForIdle(); 78 t.setText(""); 79 robot.waitForIdle(); 80 checkCounts(1, 0); 81 82 initCounts(); 83 tf.setText("Hello There!"); 84 robot.waitForIdle(); 85 checkCounts(0, 1); 86 87 initCounts(); 88 tf.setText(""); 89 robot.waitForIdle(); 90 tf.setText(""); 91 robot.waitForIdle(); 92 tf.setText(""); 93 robot.waitForIdle(); 94 checkCounts(1, 0); 95 96 f.dispose(); 97 } 98 99 private static void createAndShowGUI(String text) { 100 f = new Frame("TextEventSequenceTest"); 101 f.setLayout(new FlowLayout()); 102 103 TextListener listener = new MyTextListener(); 104 105 tf = new TextField(text); 106 tf.addTextListener(listener); 107 f.add(tf); 108 109 t = new TextArea(text, 10, 30); 110 t.addTextListener(listener); 111 f.add(t); 112 113 f.pack(); 114 f.setVisible(true); 115 } 116 117 static class MyTextListener implements TextListener { 118 119 public synchronized void textValueChanged(TextEvent e) { 120 TextComponent tc = (TextComponent) e.getSource(); 121 String text = tc.getText(); 122 if (text.length() == 0) { 123 cntEmptyStrings++; 124 } else { 125 cntNonEmptyStrings++; 126 } 127 } 128 } 129 130 synchronized static void initCounts() { 131 cntEmptyStrings = 0; 132 cntNonEmptyStrings = 0; 133 } 134 135 synchronized static void checkCounts(int empty, int nonempty) { 136 if (empty != cntEmptyStrings || nonempty != cntNonEmptyStrings) { 137 throw new RuntimeException( 138 String.format("Expected events: empty = %d, nonempty = %d, " 139 + "actual events: empty = %d, nonempty = %d", 140 empty, nonempty, cntEmptyStrings, cntNonEmptyStrings)); 141 } 142 } 143 } 144