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

2 files changed, 72 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);
+    }
+
+}
diff --git a/uitest/src/test/java/com/vaadin/tests/components/datefield/DateFieldPreventInvalidInputTest.java b/uitest/src/test/java/com/vaadin/tests/components/datefield/DateFieldPreventInvalidInputTest.java
new file mode 100644
index 0000000000..9b3d1c1ef8
--- /dev/null
+++ b/uitest/src/test/java/com/vaadin/tests/components/datefield/DateFieldPreventInvalidInputTest.java
@@ -0,0 +1,40 @@
+package com.vaadin.tests.components.datefield;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openqa.selenium.Keys;
+import org.openqa.selenium.WebElement;
+
+import com.vaadin.testbench.By;
+import com.vaadin.testbench.elements.ButtonElement;
+import com.vaadin.testbench.elements.DateFieldElement;
+import com.vaadin.testbench.elements.LabelElement;
+import com.vaadin.tests.tb3.SingleBrowserTest;
+
+public class DateFieldPreventInvalidInputTest extends SingleBrowserTest {
+
+    @Test
+    public void modifyValueAndPressTab() {
+        openTestURL();
+        DateFieldElement dateField = $(DateFieldElement.class).first();
+
+        WebElement dateTextbox = dateField
+                .findElement(By.className("v-textfield"));
+        ButtonElement button = $(ButtonElement.class).first();
+        LabelElement label = $(LabelElement.class).id("value");
+
+        // DateField is set not accept invalid input, this date is not in range
+        dateTextbox.click();
+        dateTextbox.sendKeys("01/01/21", Keys.TAB);
+        assertEquals("no-value", label.getText());
+
+        // Set DateField accept invalid input
+        button.click();
+
+        dateTextbox.click();
+        dateTextbox.sendKeys("01/01/21", Keys.TAB);
+        Assert.assertNotEquals("no-value", label.getText());
+    }
+}