8297489: Modify TextAreaTextEventTest.java as to verify the content c…

…hange of TextComponent sends TextEvent

Backport-of: 7d20a60a983e459ea1c4e843fbde70fb796c6249

test/jdk/java/awt/event/ComponentEvent/TextComponentTextEventTest.java

@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2007, 2022, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.FlowLayout;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.TextArea;
+import java.awt.TextComponent;
+import java.awt.TextField;
+import java.awt.event.InputEvent;
+import java.awt.event.KeyEvent;
+
+/*
+ * @test
+ * @key headful
+ * @bug 8297489 8296632
+ * @summary Verify the content changes of a TextComponent via TextListener.
+ * @run main TextComponentTextEventTest
+ */
+public class TextComponentTextEventTest {
+
+    private static Frame frame;
+    private static Robot robot = null;
+    private volatile static TextComponent[] components;
+    private volatile static boolean textChanged = false;
+    private volatile static Point textCompAt;
+    private volatile static Dimension textCompSize;
+
+    private static void initializeGUI() {
+        TextField textField = new TextField(20);
+        textField.addTextListener((event) -> {
+            textChanged = true;
+            System.out.println("TextField got a text event: " + event);
+        });
+
+        TextArea textArea = new TextArea(5, 15);
+        textArea.addTextListener((event) -> {
+            System.out.println("TextArea got a text event: " + event);
+            textChanged = true;
+        });
+
+        components = new TextComponent[] { textField, textArea };
+
+        frame = new Frame("Test Frame");
+        frame.setLayout(new FlowLayout());
+        for (TextComponent textComp : components) {
+            frame.add(textComp);
+        }
+        frame.pack();
+        frame.setLocationRelativeTo(null);
+        frame.setVisible(true);
+    }
+
+    public static void main(String[] args) throws Exception {
+        try {
+            EventQueue.invokeAndWait(TextComponentTextEventTest::initializeGUI);
+            robot = new Robot();
+            robot.setAutoDelay(100);
+            robot.setAutoWaitForIdle(true);
+
+            for (TextComponent textComp : components) {
+                robot.waitForIdle();
+                EventQueue.invokeAndWait(() -> {
+                    textCompAt = textComp.getLocationOnScreen();
+                    textCompSize = textComp.getSize();
+                });
+
+                robot.mouseMove(textCompAt.x + textCompSize.width / 2,
+                    textCompAt.y + textCompSize.height / 2);
+                robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+                robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+                typeKey(KeyEvent.VK_T);
+
+                robot.waitForIdle();
+                if (!textChanged) {
+                    throw new RuntimeException(
+                        "FAIL: TextEvent not triggered when text entered in " + textComp);
+                }
+
+                typeKey(KeyEvent.VK_E);
+                typeKey(KeyEvent.VK_S);
+                typeKey(KeyEvent.VK_T);
+
+                textChanged = false;
+                typeKey(KeyEvent.VK_ENTER);
+
+                robot.waitForIdle();
+                if (textComp instanceof TextField && textChanged) {
+                    throw new RuntimeException(
+                        "FAIL: TextEvent triggered when Enter pressed on " + textComp);
+                } else if (textComp instanceof TextArea && !textChanged) {
+                    throw new RuntimeException(
+                        "FAIL: TextEvent not triggered when Enter pressed on " + textComp);
+                }
+
+                textChanged = false;
+                robot.mouseMove(textCompAt.x + 4, textCompAt.y + 10);
+                robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+                robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+                robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+                for (int i = 0; i < textCompSize.width / 2; i++) {
+                    robot.mouseMove(textCompAt.x + 4 + i, textCompAt.y + 10);
+                }
+                robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+                robot.waitForIdle();
+                if (textChanged) {
+                    throw new RuntimeException(
+                        "FAIL: TextEvent triggered when selection made in " + textComp);
+                }
+
+                textChanged = false;
+                typeKey(KeyEvent.VK_F3);
+
+                robot.waitForIdle();
+                if (textChanged) {
+                    throw new RuntimeException(
+                        "FAIL: TextEvent triggered when F3 pressed on " + textComp);
+                }
+            }
+            System.out.println("Test passed!");
+        } finally {
+            EventQueue.invokeAndWait(TextComponentTextEventTest::disposeFrame);
+        }
+    }
+
+    public static void disposeFrame() {
+        if (frame != null) {
+            frame.dispose();
+        }
+    }
+
+    private static void typeKey(int key) {
+        robot.keyPress(key);
+        robot.keyRelease(key);
+    }
+}