8306466: Open source more AWT Drag & Drop related tests

Reviewed-by: prr

test/jdk/java/awt/dnd/RejectDragDropActionTest.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2003, 2023, 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.
+ */
+
+/*
+  @test
+  @bug 4774532
+  @summary tests that DropTargetDragEvent.getDropAction() returns correct value
+           after DropTargetDragEvent.rejectDrag()
+  @key headful
+  @run main RejectDragDropActionTest
+*/
+
+import java.awt.AWTException;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.datatransfer.StringSelection;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragGestureRecognizer;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetAdapter;
+import java.awt.dnd.DropTargetDragEvent;
+import java.awt.dnd.DropTargetDropEvent;
+import java.awt.dnd.DropTargetListener;
+import java.awt.event.InputEvent;
+import java.lang.reflect.InvocationTargetException;
+
+
+public class RejectDragDropActionTest {
+
+    private static volatile boolean incorrectActionDetected = false;
+
+    private static final int FRAME_ACTIVATION_TIMEOUT = 3000;
+
+    private static Frame frame;
+    private static DragSource ds;
+    private static DragGestureListener dgl;
+    private static DragGestureRecognizer dgr;
+    private final DropTargetListener dtl = new DropTargetAdapter() {
+            public void dragEnter(DropTargetDragEvent dtde) {
+                dtde.rejectDrag();
+            }
+            public void dragOver(DropTargetDragEvent dtde) {
+                if (dtde.getDropAction() == DnDConstants.ACTION_NONE) {
+                    incorrectActionDetected = true;
+                }
+            }
+            public void drop(DropTargetDropEvent dtde) {
+                dtde.rejectDrop();
+            }
+        };
+    private final DropTarget dt = new DropTarget(frame, dtl);
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException, AWTException {
+        EventQueue.invokeAndWait(() -> {
+            frame = new Frame("RejectDragDropActionTest");
+            ds = DragSource.getDefaultDragSource();
+            dgl = dge -> dge.startDrag(null, new StringSelection("OOKK"));
+            dgr = ds.createDefaultDragGestureRecognizer(frame, DnDConstants.ACTION_COPY, dgl);
+            frame.setBounds(100, 100, 200, 200);
+            frame.setVisible(true);
+        });
+
+        try {
+            Robot robot = new Robot();
+            robot.waitForIdle();
+            robot.delay(FRAME_ACTIVATION_TIMEOUT);
+
+            Point startPoint = frame.getLocationOnScreen();
+            Point endPoint = new Point(startPoint);
+            startPoint.translate(50, 50);
+            endPoint.translate(150, 150);
+
+            robot.mouseMove(startPoint.x, startPoint.y);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            for (Point p = new Point(startPoint); !p.equals(endPoint);
+                 p.translate(sign(endPoint.x - p.x),
+                         sign(endPoint.y - p.y))) {
+                robot.mouseMove(p.x, p.y);
+                robot.delay(50);
+            }
+
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+
+        if (incorrectActionDetected) {
+            throw new RuntimeException("User action reported incorrectly.");
+        }
+    }
+
+    public static int sign(int n) {
+        return n < 0 ? -1 : n == 0 ? 0 : 1;
+    }
+}

test/jdk/java/awt/dnd/RemoveDragSourceListenerTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2002, 2023, 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.
+ */
+
+/*
+  @test
+  @bug 4530216
+  @summary tests that DragSourceListeners are properly removed
+  @key headful
+  @run main RemoveDragSourceListenerTest
+*/
+
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragSourceAdapter;
+import java.awt.dnd.DragSourceListener;
+import java.awt.dnd.DragSourceMotionListener;
+
+
+public class RemoveDragSourceListenerTest {
+    public static void main(String[] args) {
+        class TestDragSourceAdapter extends DragSourceAdapter {}
+
+        final DragSource dragSource = DragSource.getDefaultDragSource();
+
+        final DragSourceAdapter listeners[] = {
+                new TestDragSourceAdapter(),
+                new TestDragSourceAdapter(),
+                new TestDragSourceAdapter() // should be three or more listeners
+        };
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.addDragSourceListener(listeners[i]);
+        }
+
+        DragSourceListener[] dragSourceListeners =
+                dragSource.getDragSourceListeners();
+
+        if (dragSourceListeners.length != listeners.length) {
+            throw new RuntimeException("Unexpected length: " +
+                    dragSourceListeners.length);
+        }
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.removeDragSourceListener(listeners[i]);
+        }
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.addDragSourceMotionListener(listeners[i]);
+        }
+
+        DragSourceMotionListener[] dragSourceMotionListeners =
+                dragSource.getDragSourceMotionListeners();
+
+        if (dragSourceMotionListeners.length != listeners.length) {
+            throw new RuntimeException("Unexpected length: " +
+                    dragSourceMotionListeners.length);
+        }
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.removeDragSourceMotionListener(listeners[i]);
+        }
+    }
+}

test/jdk/java/awt/dnd/RemoveParentChildDropTargetTest.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2001, 2023, 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.
+ */
+
+/*
+  @test
+  @bug 4411368
+  @summary tests the app doesn't crash if the child drop target is removed
+           after the parent drop target is removed
+  @key headful
+  @run main RemoveParentChildDropTargetTest
+*/
+
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Label;
+import java.awt.Panel;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetAdapter;
+import java.awt.dnd.DropTargetDropEvent;
+import java.lang.reflect.InvocationTargetException;
+
+
+public class RemoveParentChildDropTargetTest {
+
+    static Frame frame;
+    static Panel panel;
+    static Label label;
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException {
+        EventQueue.invokeAndWait(() -> {
+            frame = new Frame("RemoveParentChildDropTargetTest");
+            panel = new Panel();
+            label = new Label("Label");
+            panel.add(label);
+            frame.add(panel);
+            frame.pack();
+
+            panel.setDropTarget(new DropTarget(panel, new DropTargetAdapter() {
+                public void drop(DropTargetDropEvent dtde) {}
+            }));
+            label.setDropTarget(new DropTarget(label, new DropTargetAdapter() {
+                public void drop(DropTargetDropEvent dtde) {}
+            }));
+            panel.setDropTarget(null);
+            frame.setVisible(true);
+
+            label.setDropTarget(null);
+        });
+
+        EventQueue.invokeAndWait(() -> {
+            if (frame != null) {
+                frame.dispose();
+            }
+        });
+    }
+}