Add API to prevent invalid input when integrated range validator is used (#12168)

Do not fire DateField's value change event if the new date is not within the range.

Fixes: #12163

1 files changed, 32 insertions, 0 deletions

diff --git a/uitest/src/main/java/com/vaadin/tests/components/datefield/DateFieldPreventInvalidInput.java b/uitest/src/main/java/com/vaadin/tests/components/datefield/DateFieldPreventInvalidInput.java
new file mode 100644
index 0000000000..257feefb6b
--- /dev/null
+++ b/uitest/src/main/java/com/vaadin/tests/components/datefield/DateFieldPreventInvalidInput.java
@@ -0,0 +1,32 @@
+package com.vaadin.tests.components.datefield;
+
+import java.time.LocalDate;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.DateField;
+import com.vaadin.ui.Label;
+
+public class DateFieldPreventInvalidInput extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        DateField dateField = new DateField();
+        dateField.setRangeStart(LocalDate.ofYearDay(2019, 1));
+        dateField.setRangeEnd(LocalDate.ofYearDay(2019, 365));
+        dateField.setPreventInvalidInput(true);
+        Button button = new Button("", event -> {
+            dateField.clear();
+            dateField.setPreventInvalidInput(false);
+        });
+        Label value = new Label();
+        value.setValue("no-value");
+        value.setId("value");
+        dateField.addValueChangeListener(event -> {
+            value.setValue(dateField.getValue().toString());
+        });
+        addComponents(dateField,value,button);
+    }
+
+}