Add setters to Criterion to fix serialization. (#11926)

Fixes #11909

1 files changed, 59 insertions, 0 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/dnd/CriterionSerialization.java b/uitest/src/main/java/com/vaadin/tests/dnd/CriterionSerialization.java
new file mode 100644
index 0000000000..3cc508f64b
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/dnd/CriterionSerialization.java
@@ -0,0 +1,59 @@
+package com.vaadin.tests.dnd;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUIWithLog;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.dnd.DragSourceExtension;
+import com.vaadin.ui.dnd.DropTargetExtension;
+
+public class CriterionSerialization extends AbstractTestUIWithLog {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        Button button = new Button();
+        button.setCaption("drag me");
+        button.setId("drag");
+        DragSourceExtension<Button> dragSource = new DragSourceExtension<>(
+                button);
+        dragSource.setPayload("test", "value");
+        dragSource.addDragStartListener(e -> {
+            log("drag started");
+        });
+        dragSource.addDragEndListener(e -> {
+            log("drag ended");
+        });
+
+        Button dropArea1 = new Button();
+        dropArea1.setCaption("drop here works");
+        dropArea1.setId("dropWorks");
+        DropTargetExtension<Button> dropTarget = new DropTargetExtension<>(
+                dropArea1);
+        dropTarget.addDropListener(e -> {
+            log("dropArea1 drop listener invoked (expected to happen)");
+        });
+        dropTarget.setDropCriterion("test", "value");
+
+        Button dropArea2 = new Button();
+        dropArea2.setCaption("drop here fails");
+        dropArea2.setId("dropFails");
+        DropTargetExtension<Button> dropTarget2 = new DropTargetExtension<>(
+                dropArea2);
+        dropTarget2.addDropListener(e -> {
+            log("dropArea2 drop listener invoked (should not happen)");
+        });
+        dropTarget2.setDropCriterion("test", "value2");
+
+        getLayout().addComponents(button, dropArea1, dropArea2);
+    }
+
+    @Override
+    protected String getTestDescription() {
+        return "Dropping the draggable button on the button without matching "
+                + "Criterion should not trigger drop listener.";
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 11909;
+    }
+}