feat: add i18n support to InlineDatePicker

pom.xml

@@ -4,7 +4,7 @@
 
 	<groupId>org.vaadin.addons.flowingcode</groupId>
 	<artifactId>year-month-calendar</artifactId>
-	<version>4.2.2-SNAPSHOT</version>
+	<version>4.3.0-SNAPSHOT</version>
 	<name>Year Month Calendar Add-on</name>
 	<description>Year Month Calendar Add-on for Vaadin Flow</description>
 

src/main/java/com/flowingcode/addons/ycalendar/InlineDatePicker.java

@@ -2,7 +2,7 @@
  * #%L
  * Year Month Calendar Add-on
  * %%
- * Copyright (C) 2021 - 2023 Flowing Code
+ * Copyright (C) 2021 - 2024 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,10 +23,13 @@
 import com.vaadin.flow.component.HasSize;
 import com.vaadin.flow.component.HasTheme;
 import com.vaadin.flow.component.Tag;
+import com.vaadin.flow.component.datepicker.DatePicker.DatePickerI18n;
 import com.vaadin.flow.component.dependency.JsModule;
 import com.vaadin.flow.component.dependency.Uses;
 import com.vaadin.flow.function.SerializableFunction;
+import com.vaadin.flow.internal.JsonSerializer;
 import java.time.LocalDate;
+import java.util.Objects;
 import java.util.Optional;
 
 @SuppressWarnings("serial")
@@ -72,4 +75,14 @@ public boolean isWeekNumbersVisible() {
     return getElement().getProperty("showWeekNumbers", false);
   }
 
+  /**
+   * Sets the i18n object.
+   *
+   * @param i18n the {@code DatepickerI18n} object used to initialize i18n
+   */
+  public void setI18n(DatePickerI18n i18n) {
+    Objects.requireNonNull(i18n, "The I18N properties object should not be null");
+    getElement().setPropertyJson("i18n", JsonSerializer.toJson(i18n));
+  }
+
 }

src/main/resources/META-INF/frontend/fc-inline-date-picker/fc-inline-date-picker.js

@@ -2,7 +2,7 @@
  * #%L
  * Year Month Calendar Add-on
  * %%
- * Copyright (C) 2021 - 2023 Flowing Code
+ * Copyright (C) 2021 - 2024 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,8 +54,10 @@ export class InlineDatePicker extends LitElement {
       this.displayDate = this.displayDate || new Date();
     }
     if (changedProperties.has('i18n') && this.i18n) {
-      this.shadowRoot.querySelector("fc-year-month-field").i18n=this.i18n;
-      this.shadowRoot.querySelector("fc-month-calendar").i18n=this.i18n;
+      [
+        this.shadowRoot.querySelector("fc-year-month-field"),
+        this.shadowRoot.querySelector("fc-month-calendar")
+      ].forEach(e=>{if (e) e.i18n=this.i18n;});
     }
   }
 

src/test/java/com/flowingcode/addons/ycalendar/InlineDatePickerDemo.java

@@ -2,14 +2,14 @@
  * #%L
  * Year Month Calendar Add-on
  * %%
- * Copyright (C) 2021 - 2023 Flowing Code
+ * Copyright (C) 2021 - 2024 Flowing Code
  * %%
  * 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.
@@ -34,6 +34,9 @@ public class InlineDatePickerDemo extends Div {
   public InlineDatePickerDemo() {
 
     InlineDatePicker field = new InlineDatePicker();
+    // #if vaadin eq 0
+    add(new LocaleSelector(field::setI18n));
+    // #endif
 
     field.addValueChangeListener(ev->{
       Notification.show(Objects.toString(ev.getValue()));