Do proper cleanup in VDragAndDropManager.endDrag(boolean) (#17163)

Change-Id: I5f9462923fce9f033bc89b791d68607a1e0fc5c7

3 files changed, 204 insertions, 0 deletions

diff --git a/uitest/src/com/vaadin/tests/dd/DDInterrupt.java b/uitest/src/com/vaadin/tests/dd/DDInterrupt.java
new file mode 100644
index 0000000000..1939bbbce5
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/dd/DDInterrupt.java
@@ -0,0 +1,87 @@
+package com.vaadin.tests.dd;
+
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.event.dd.DragAndDropEvent;
+import com.vaadin.event.dd.DropHandler;
+import com.vaadin.event.dd.TargetDetailsImpl;
+import com.vaadin.event.dd.acceptcriteria.AcceptAll;
+import com.vaadin.event.dd.acceptcriteria.AcceptCriterion;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.tests.widgetset.TestingWidgetSet;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.Button.ClickEvent;
+import com.vaadin.ui.CssLayout;
+import com.vaadin.ui.DragAndDropWrapper;
+import com.vaadin.ui.DragAndDropWrapper.DragStartMode;
+import com.vaadin.ui.Label;
+
+/**
+ * Test for interrupting drag-and-drop.
+ * 
+ * @author Vaadin Ltd
+ */
+@Widgetset(TestingWidgetSet.NAME)
+public class DDInterrupt extends AbstractTestUI {
+
+    private SpacebarPanner sp;
+
+    @Override
+    protected void setup(VaadinRequest vaadinRequest) {
+        final CssLayout layout = new CssLayout();
+        layout.setWidth("500px");
+        layout.setHeight("500px");
+
+        addButton("Click to interrupt next drag.", new Button.ClickListener() {
+
+            @Override
+            public void buttonClick(ClickEvent event) {
+                sp.interruptNext();
+            }
+        });
+
+        final Label draggableLabel = new Label("Drag me");
+        draggableLabel.setId("draggable");
+
+        DragAndDropWrapper dndLayoutWrapper = new DragAndDropWrapper(layout);
+        addComponent(dndLayoutWrapper);
+
+        DragAndDropWrapper labelWrapper = new DragAndDropWrapper(draggableLabel);
+        draggableLabel.setSizeUndefined();
+        labelWrapper.setDragStartMode(DragStartMode.COMPONENT);
+        labelWrapper.setSizeUndefined();
+
+        layout.addComponent(labelWrapper);
+
+        dndLayoutWrapper.setDropHandler(new DropHandler() {
+
+            @Override
+            public AcceptCriterion getAcceptCriterion() {
+                return AcceptAll.get();
+            }
+
+            @Override
+            public void drop(DragAndDropEvent event) {
+                TargetDetailsImpl targetDetails = (TargetDetailsImpl) event
+                        .getTargetDetails();
+                int x = targetDetails.getMouseEvent().getRelativeX();
+                int y = targetDetails.getMouseEvent().getRelativeY();
+
+                draggableLabel.setWidth(x, Unit.PIXELS);
+                draggableLabel.setHeight(y, Unit.PIXELS);
+            }
+        });
+
+        sp = SpacebarPanner.wrap(this);
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 17163;
+    }
+
+    @Override
+    protected String getTestDescription() {
+        return "Hold space while clicking and dragging the label, or click the button before draggin the label. There should be no client-side exception.";
+    }
+}
diff --git a/uitest/src/com/vaadin/tests/dd/DDInterruptTest.java b/uitest/src/com/vaadin/tests/dd/DDInterruptTest.java
new file mode 100644
index 0000000000..e078bc4665
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/dd/DDInterruptTest.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.tests.dd;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.interactions.Actions;
+import org.openqa.selenium.support.ui.ExpectedCondition;
+
+import com.vaadin.testbench.elements.ButtonElement;
+import com.vaadin.testbench.elements.LabelElement;
+import com.vaadin.testbench.elements.UIElement;
+import com.vaadin.tests.tb3.MultiBrowserTest;
+
+/**
+ * Test for interrupting drag-and-drop.
+ * 
+ * @author Vaadin Ltd
+ */
+public class DDInterruptTest extends MultiBrowserTest {
+
+    private UIElement ui;
+
+    @Override
+    public void setup() throws Exception {
+        super.setup();
+        openTestURL("debug");
+        ui = $(UIElement.class).first();
+    }
+
+    @Test
+    public void testRegularDragging() {
+        dragElement();
+        assertNoNotifications();
+        assertDragged(true);
+    }
+
+    @Test
+    public void testTriggeredDragging() {
+        $(ButtonElement.class).first().click();
+        waitUntilTriggered(true);
+
+        dragElement();
+
+        waitUntilTriggered(false);
+        assertNoNotifications();
+        assertDragged(false);
+    }
+
+    private void dragElement() {
+        LabelElement label = $(LabelElement.class).id("draggable");
+        new Actions(driver).moveToElement(label).clickAndHold()
+                .moveByOffset(400, 400).perform();
+    }
+
+    private void assertNoNotifications() {
+        Assert.assertEquals(
+                "Notification found when there should have been none,", 0,
+                findElements(By.className("v-Notification")).size());
+    }
+
+    private void assertDragged(boolean dragged) {
+        Assert.assertEquals("Unexpected drag state,", dragged ? 1 : 0,
+                findElements(By.className("v-ddwrapper-over-bottom")).size());
+    }
+
+    private void waitUntilTriggered(final boolean triggered) {
+        waitUntil(new ExpectedCondition<Boolean>() {
+
+            @Override
+            public Boolean apply(WebDriver arg0) {
+                return triggered == hasCssClass(ui, "triggered");
+            }
+
+            @Override
+            public String toString() {
+                return String.format("UI to %s stylename 'triggered'",
+                        (triggered ? "get" : "lose"));
+            }
+        });
+    }
+}
diff --git a/uitest/src/com/vaadin/tests/dd/SpacebarPanner.java b/uitest/src/com/vaadin/tests/dd/SpacebarPanner.java
new file mode 100644
index 0000000000..d6179066fb
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/dd/SpacebarPanner.java
@@ -0,0 +1,20 @@
+package com.vaadin.tests.dd;
+
+import com.vaadin.server.AbstractExtension;
+import com.vaadin.ui.UI;
+
+public class SpacebarPanner extends AbstractExtension {
+
+    private static final long serialVersionUID = -7712258690917457123L;
+
+    public static SpacebarPanner wrap(UI ui) {
+        SpacebarPanner panner = new SpacebarPanner();
+        panner.extend(ui);
+        return panner;
+    }
+
+    public void interruptNext() {
+        getState().enabled = !getState().enabled;
+    }
+
+}