7049024: DnD fails with JTextArea and JTextField

Reviewed-by: rupashka
Contributed-by: NSean Chou <zhouyx@linux.vnet.ibm.com>

src/share/classes/javax/swing/text/DefaultCaret.java

@@ -1326,7 +1326,7 @@ public class DefaultCaret extends Rectangle implements Caret, FocusListener, Mou
         if ( ! SwingUtilities2.canCurrentEventAccessSystemClipboard() ) {
             return;
         }
-        if (this.dot != this.mark && component != null) {
+        if (this.dot != this.mark && component != null && component.hasFocus()) {
             Clipboard clip = getSystemSelection();
             if (clip != null) {
                 String selectedText;

test/javax/swing/JTextArea/7049024/bug7049024.java

+/*
+ * Copyright (c) 2011 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.
+ */
+
+/*
+ * Portions Copyright (c) 2011 IBM Corporation
+ */
+
+/* @test
+ * @bug 7049024
+ * @summary DnD fails with JTextArea and JTextField
+ * @author Sean Chou
+ */
+
+import sun.awt.SunToolkit;
+
+import javax.swing.*;
+import javax.swing.text.DefaultCaret;
+import java.awt.*;
+import java.awt.datatransfer.Clipboard;
+import java.awt.datatransfer.DataFlavor;
+
+public class bug7049024 {
+    public static Clipboard clipboard = null;
+
+    public static JTextField textField = null;
+
+    // This button is used to move focus away from textField.
+    public static JButton button = null;
+
+    public static JFrame frame = null;
+
+    public static DefaultCaret caret = null;
+
+    public static void main(String[] args) throws Exception {
+
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                frame = new JFrame("Test");
+                textField = new JTextField("test selection for textfield");
+                button = new JButton("To compete the focus");
+
+                frame.setLayout(new FlowLayout());
+                frame.getContentPane().add(textField);
+                frame.getContentPane().add(button);
+
+                frame.pack();
+                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+                frame.setVisible(true);
+            }
+        });
+        toolkit.realSync();
+
+        clipboard = textField.getToolkit().getSystemSelection();
+        if (null == clipboard) {
+            return;
+        }
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                textField.requestFocusInWindow();
+            }
+        });
+        toolkit.realSync();
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                caret = (DefaultCaret) textField.getCaret();
+                caret.setDot(2);
+                caret.moveDot(4);
+            }
+        });
+        toolkit.realSync();
+
+        String oldSelection = (String) clipboard.getData(DataFlavor.stringFlavor);
+        System.out.println("oldSelection is " + oldSelection);
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                button.requestFocusInWindow();
+            }
+        });
+        toolkit.realSync(); // So JTextField loses the focus.
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                caret.setDot(4);
+                caret.moveDot(6);
+            }
+        });
+        toolkit.realSync();
+
+        String newSelection = (String) clipboard.getData(DataFlavor.stringFlavor);
+        System.out.println("newSelection is " + newSelection);
+
+        boolean passed = newSelection.equals(oldSelection);
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                frame.dispose();
+            }
+        });
+
+        if (!passed) {
+            throw new RuntimeException("The test for bug 7049024 failed");
+        }
+    }
+}