8328648: Remove applet usage from JFileChooser tests bug4150029

Backport-of: 021ed6aea92f770ebeae65175d94797f7c418c82

Author: GoeLin

test/jdk/javax/swing/JFileChooser/4150029/bug4150029.html

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2024, 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
@@ -21,73 +21,117 @@
  * questions.
  */
 
-/*
-   bug 4150029 8006087
-   summary BackSpace keyboard button does not lead to parent directory
-   author Oleg Mokhovikov
-*/
+import java.awt.BorderLayout;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.event.InputEvent;
+import java.awt.event.KeyEvent;
+import java.io.File;
+import javax.swing.JFileChooser;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
+import javax.swing.UIManager;
 
 import jdk.test.lib.Platform;
 
-import javax.swing.*;
-import java.io.File;
-import java.io.IOException;
+/*
+ * @test
+ * @bug 4150029 8006087
+ * @key headful
+ * @summary BackSpace keyboard button does not lead to parent directory
+ * @library /test/lib
+ * @build jdk.test.lib.Platform
+ * @run main bug4150029
+ */
+
+public class bug4150029 {
+    private static JFrame frame;
+    private static JFileChooser fileChooser;
+    private static Robot robot;
+    private static File prevDir;
+    private static File crntDir;
+    private static volatile Point p;
 
-public class bug4150029 extends JApplet {
-    private boolean res;
+    public static void main(String[] args) throws Exception {
+        robot = new Robot();
+        robot.setAutoDelay(100);
 
-    public void init() {
-        if (Platform.isOSX()) {
-            try {
-                UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
-            } catch (Exception e) {
-                throw new RuntimeException(e);
+        try {
+            if (Platform.isOSX()) {
+                try {
+                    UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
             }
-        }
 
-        String tmpDir = System.getProperty("java.io.tmpdir");
+            String tmpDir = System.getProperty("java.io.tmpdir");
 
-        if (tmpDir.length() == 0) {//'java.io.tmpdir' isn't guaranteed to be defined
-            tmpDir = System.getProperty("user.home");
+            //'java.io.tmpdir' isn't guaranteed to be defined
+            if (tmpDir.length() == 0) {
+                tmpDir = System.getProperty("user.home");
+            }
+            System.out.println("Temp directory: " + tmpDir);
+
+            File testDir = new File(tmpDir, "testDir");
+            testDir.mkdir();
+            testDir.deleteOnExit();
+            System.out.println("Created directory: " + testDir);
+
+            File subDir = new File(testDir, "subDir");
+            subDir.mkdir();
+            subDir.deleteOnExit();
+            System.out.println("Created sub-directory: " + subDir);
+
+            SwingUtilities.invokeAndWait(() -> {
+                createAndShowUI();
+                fileChooser.setCurrentDirectory(subDir);
+            });
+
+            doTesting();
+        } finally {
+            SwingUtilities.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
         }
+    }
 
-        System.out.println("Temp directory: " + tmpDir);
-
-        File testDir = new File(tmpDir, "testDir");
-
-        testDir.mkdir();
-
-        File subDir = new File(testDir, "subDir");
-
-        subDir.mkdir();
-
-        System.out.println("Created directory: " + testDir);
-        System.out.println("Created sub-directory: " + subDir);
-
-        JFileChooser fileChooser = new JFileChooser(testDir);
+    private static void createAndShowUI() {
+        frame = new JFrame("Backspace Shortcut for Directory Navigation Test");
+        frame.setLayout(new BorderLayout());
+        fileChooser = new JFileChooser();
+        fileChooser.setControlButtonsAreShown(false);
+        frame.add(fileChooser, BorderLayout.CENTER);
+        frame.pack();
+        frame.setLocationRelativeTo(null);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setVisible(true);
+    }
 
-        fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
+    private static void doTesting() throws Exception {
+        SwingUtilities.invokeAndWait(() -> {
+            p = frame.getLocationOnScreen();
+        });
+        robot.mouseMove(p.x + 200, p.y + 200);
+        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
 
-        try {
-            res = fileChooser.showOpenDialog(this) != JFileChooser.APPROVE_OPTION ||
-                    testDir.getCanonicalPath().equals(fileChooser.getSelectedFile().getCanonicalPath());
-        } catch (IOException e) {
-            res = false;
+        robot.waitForIdle();
 
-            e.printStackTrace();
-        }
+        // check backspace key at subDir level
+        clickBackSpace();
 
-        try {
-            subDir.delete();
-            testDir.delete();
-        } catch (SecurityException e) {
-            e.printStackTrace();
+        if (prevDir.equals(crntDir)) {
+            throw new RuntimeException("BackSpace does not lead to parent directory");
         }
     }
 
-    public void destroy() {
-        if (!res) {
-            throw new RuntimeException("BackSpace keyboard button does not lead to parent directory");
-        }
+    private static void clickBackSpace() {
+        prevDir = fileChooser.getCurrentDirectory();
+        robot.keyPress(KeyEvent.VK_BACK_SPACE);
+        robot.keyRelease(KeyEvent.VK_BACK_SPACE);
+        crntDir = fileChooser.getCurrentDirectory();
     }
 }