8307299: Move more DnD tests to open

Backport-of: 950c5df859c373864ab4e7cf080c38bbd501e54b

test/jdk/java/awt/dnd/DropTargetingTest.java

@@ -0,0 +1,304 @@
+/*
+ * 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.
+ */
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import java.awt.AWTEvent;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.Panel;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.StringSelection;
+import java.awt.datatransfer.Transferable;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragSourceAdapter;
+import java.awt.dnd.DragSourceListener;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetAdapter;
+import java.awt.dnd.DropTargetContext;
+import java.awt.dnd.DropTargetDragEvent;
+import java.awt.dnd.DropTargetDropEvent;
+import java.awt.dnd.DropTargetEvent;
+import java.awt.dnd.DropTargetListener;
+import java.awt.event.AWTEventListener;
+import java.awt.event.InputEvent;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+
+/*
+  @test
+  @bug 4426794 4435403
+  @summary tests that drag notifications are targeted to the drop target
+           whose operable part is currently intersected by cursor's hotspot
+  @key headful
+  @run main DropTargetingTest
+*/
+
+public class DropTargetingTest implements AWTEventListener {
+
+    volatile JFrame sourceFrame;
+    volatile JFrame targetFrame1;
+    volatile JFrame targetFrame2;
+    volatile JButton obscurer;
+
+    volatile DragSource dragSource;
+    volatile Transferable transferable;
+    volatile DragSourceListener dragSourceListener;
+    volatile DragGestureListener dragGestureListener;
+    volatile Point srcPoint;
+    volatile Point dstPoint;
+    volatile Dimension d;
+
+    static class TestDropTargetListener extends DropTargetAdapter {
+        private boolean dropRecognized = false;
+        public void drop(DropTargetDropEvent dtde) {
+            dropRecognized = true;
+            dtde.rejectDrop();
+            synchronized (SYNC_LOCK) {
+                SYNC_LOCK.notifyAll();
+            }
+        }
+        public void reset() {
+            dropRecognized = false;
+        }
+        public boolean dropRecognized() {
+            return dropRecognized;
+        }
+    }
+    volatile TestDropTargetListener dropTargetListener;
+
+    static final Object SYNC_LOCK = new Object();
+    static final int FRAME_ACTIVATION_TIMEOUT = 2000;
+    static final int DROP_COMPLETION_TIMEOUT = 5000;
+    static final int MOUSE_RELEASE_TIMEOUT = 1000;
+
+    Component clickedComponent = null;
+
+    public static void main(String[] args) throws Exception {
+        DropTargetingTest test = new DropTargetingTest();
+        EventQueue.invokeAndWait(test::init);
+        try {
+            test.start();
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (test.sourceFrame != null) {
+                    test.sourceFrame.dispose();
+                }
+                if (test.targetFrame1 != null) {
+                    test.targetFrame1.dispose();
+                }
+                if (test.targetFrame2 != null) {
+                    test.targetFrame2.dispose();
+                }
+            });
+        }
+    }
+
+    public void init() {
+        sourceFrame = new JFrame();
+        targetFrame1 = new JFrame();
+        targetFrame2 = new JFrame();
+        obscurer = new JButton("Obscurer");
+
+        dragSource = DragSource.getDefaultDragSource();
+        transferable = new StringSelection("TEXT");
+        dragSourceListener = new DragSourceAdapter() {};
+        dragGestureListener = new DragGestureListener() {
+            public void dragGestureRecognized(DragGestureEvent dge) {
+                dge.startDrag(null, transferable, dragSourceListener);
+            }
+        };
+        dropTargetListener = new TestDropTargetListener();
+
+        sourceFrame.setTitle("DropTargetingTest Source frame");
+        sourceFrame.setBounds(100, 100, 100, 100);
+        sourceFrame.getToolkit().addAWTEventListener(this, AWTEvent.MOUSE_EVENT_MASK);
+        dragSource.createDefaultDragGestureRecognizer(sourceFrame, DnDConstants.ACTION_COPY,
+                                                      dragGestureListener);
+        targetFrame1.setTitle("Target frame 1");
+        targetFrame1.setBounds(200, 100, 100, 100);
+        targetFrame1.getGlassPane().setVisible(true);
+        targetFrame1.getGlassPane().setDropTarget(
+            new DropTarget(targetFrame1.getGlassPane(), dropTargetListener));
+        targetFrame2.setTitle("Target frame 2");
+        targetFrame2.setBounds(300, 100, 100, 100);
+        targetFrame2.setDropTarget(new DropTarget(targetFrame1, dropTargetListener));
+        targetFrame2.getContentPane().add(obscurer);
+
+        sourceFrame.setVisible(true);
+        targetFrame1.setVisible(true);
+        targetFrame2.setVisible(true);
+    }
+
+    public static int sign(int n) {
+        return n < 0 ? -1 : n == 0 ? 0 : 1;
+    }
+
+    public void start() throws Exception {
+        Robot robot = new Robot();
+        robot.delay(FRAME_ACTIVATION_TIMEOUT);
+
+        if (!test(robot, targetFrame1)) {
+            throw new RuntimeException("Failed to recognize drop on a glass pane");
+        }
+
+        if (!test(robot, targetFrame2)) {
+            throw new RuntimeException("Failed to recognize drop on a composite component");
+        }
+    }
+
+    public void reset() {
+        clickedComponent = null;
+    }
+
+    public void eventDispatched(AWTEvent e) {
+        if (e.getID() == MouseEvent.MOUSE_RELEASED) {
+            clickedComponent = (Component)e.getSource();
+            synchronized (SYNC_LOCK) {
+                SYNC_LOCK.notifyAll();
+            }
+        }
+    }
+
+    boolean pointInComponent(Robot robot, Point p, Component comp)
+      throws InterruptedException {
+        robot.waitForIdle();
+        reset();
+        robot.mouseMove(p.x, p.y);
+        robot.mousePress(InputEvent.BUTTON1_MASK);
+        synchronized (SYNC_LOCK) {
+            robot.mouseRelease(InputEvent.BUTTON1_MASK);
+            SYNC_LOCK.wait(MOUSE_RELEASE_TIMEOUT);
+        }
+
+        Component c = clickedComponent;
+
+        while (c != null && c != comp) {
+            c = c.getParent();
+        }
+
+        return c == comp;
+    }
+
+    boolean test(Robot robot, JFrame targetFrame) throws Exception {
+        EventQueue.invokeAndWait(() -> {
+            srcPoint = sourceFrame.getLocationOnScreen();
+            d = sourceFrame.getSize();
+        });
+        srcPoint.translate(d.width / 2, d.height / 2);
+
+        if (!pointInComponent(robot, srcPoint, sourceFrame)) {
+            System.err.println("WARNING: Couldn't locate source frame.");
+            return true;
+        }
+        EventQueue.invokeAndWait(() -> {
+            dstPoint = targetFrame.getLocationOnScreen();
+            d = targetFrame.getSize();
+        });
+        dstPoint.translate(d.width / 2, d.height / 2);
+
+        if (!pointInComponent(robot, dstPoint, targetFrame)) {
+            System.err.println("WARNING: Couldn't locate target frame: " + targetFrame);
+            return true;
+        }
+
+        dropTargetListener.reset();
+        robot.mouseMove(srcPoint.x, srcPoint.y);
+        robot.keyPress(KeyEvent.VK_CONTROL);
+        robot.mousePress(InputEvent.BUTTON1_MASK);
+        for (;!srcPoint.equals(dstPoint);
+             srcPoint.translate(sign(dstPoint.x - srcPoint.x),
+                                sign(dstPoint.y - srcPoint.y))) {
+            robot.mouseMove(srcPoint.x, srcPoint.y);
+            robot.delay(10);
+        }
+        synchronized (SYNC_LOCK) {
+            robot.mouseRelease(InputEvent.BUTTON1_MASK);
+            robot.keyRelease(KeyEvent.VK_CONTROL);
+            SYNC_LOCK.wait(DROP_COMPLETION_TIMEOUT);
+        }
+
+        return dropTargetListener.dropRecognized();
+    }
+}
+
+class DropTargetPanel extends Panel implements DropTargetListener {
+
+    final Dimension preferredDimension = new Dimension(200, 100);
+    boolean testPassed = true;
+
+    public DropTargetPanel() {
+        setDropTarget(new DropTarget(this, this));
+    }
+
+    public boolean getStatus() {
+        return testPassed;
+    }
+
+    public Dimension getPreferredSize() {
+        return preferredDimension;
+    }
+
+    public void dragEnter(DropTargetDragEvent dtde) {}
+
+    public void dragExit(DropTargetEvent dte) {
+        testPassed = false;
+    }
+
+    public void dragOver(DropTargetDragEvent dtde) {}
+
+    public void dropActionChanged(DropTargetDragEvent dtde) {}
+
+    public void drop(DropTargetDropEvent dtde) {
+        DropTargetContext dtc = dtde.getDropTargetContext();
+
+        if ((dtde.getSourceActions() & DnDConstants.ACTION_COPY) != 0) {
+            dtde.acceptDrop(DnDConstants.ACTION_COPY);
+        } else {
+            dtde.rejectDrop();
+        }
+
+        DataFlavor[] dfs = dtde.getCurrentDataFlavors();
+        Component comp = null;
+
+        if (dfs != null && dfs.length >= 1) {
+            Transferable transfer = dtde.getTransferable();
+
+            try {
+                comp = (Component)transfer.getTransferData(dfs[0]);
+            } catch (Throwable e) {
+                e.printStackTrace();
+                dtc.dropComplete(false);
+            }
+        }
+        dtc.dropComplete(true);
+
+        add(comp);
+    }
+}