Added base locale functionality. Works in AddNameCtrl for now.

client/src/main/java/client/MyModule.java

@@ -16,6 +16,7 @@
 package client;
 
 import client.scenes.FoodpalApplicationCtrl;
+import client.utils.LocaleManager;
 import com.google.inject.Binder;
 import com.google.inject.Module;
 import com.google.inject.Scopes;
@@ -30,5 +31,7 @@ public class MyModule implements Module {
         binder.bind(MainCtrl.class).in(Scopes.SINGLETON);
         binder.bind(AddNameCtrl.class).in(Scopes.SINGLETON);
         binder.bind(FoodpalApplicationCtrl.class).in(Scopes.SINGLETON);
+
+        binder.bind(LocaleManager.class).in(Scopes.SINGLETON);
     }
 }

client/src/main/java/client/scenes/AddNameCtrl.java

@@ -15,28 +15,50 @@
  */
 package client.scenes;
 
+import client.utils.LocaleAware;
+import client.utils.LocaleManager;
 import client.utils.ServerUtils;
 import com.google.inject.Inject;
 
 import jakarta.ws.rs.WebApplicationException;
 import javafx.scene.control.Alert;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
 import javafx.scene.control.TextField;
 import javafx.scene.input.KeyEvent;
 import javafx.stage.Modality;
 
 import java.io.IOException;
 
-public class AddNameCtrl {
+public class AddNameCtrl implements LocaleAware {
 
     private final ServerUtils server;
     private final MainCtrl mainCtrl;
-    public TextField recipeName;
 
+    private final LocaleManager localeManager;
+
+    public TextField recipeName;
+    public Label recipeNameLabel;
+    public Button cancelButton;
+    public Button okButton;
 
     @Inject
-    public AddNameCtrl(ServerUtils server, MainCtrl mainCtrl) {
+    public AddNameCtrl(ServerUtils server, MainCtrl mainCtrl, LocaleManager localeManager) {
         this.mainCtrl = mainCtrl;
         this.server = server;
+        this.localeManager = localeManager;
+    }
+
+    @Override
+    public void updateText() {
+        recipeNameLabel.setText(getLocaleString("add.recipe.label"));
+        okButton.setText(getLocaleString("add.recipe.button.ok"));
+        cancelButton.setText(getLocaleString("add.recipe.button.cancel"));
+    }
+
+    @Override
+    public LocaleManager getLocaleManager() {
+        return localeManager;
     }
 
     public void cancel() throws IOException, InterruptedException {
@@ -78,4 +100,5 @@ public class AddNameCtrl {
                 break;
         }
     }
+
 }

client/src/main/java/client/scenes/FoodpalApplicationCtrl.java

@@ -3,7 +3,9 @@ package client.scenes;
 
 import java.io.IOException;
 import java.util.List;
+import java.util.Locale;
 
+import client.utils.LocaleManager;
 import client.utils.ServerUtils;
 import commons.Recipe;
 
@@ -17,6 +19,7 @@ import javafx.scene.control.ListView;
 public class FoodpalApplicationCtrl {
     private final MainCtrl mainCtrl;
     private final ServerUtils server;
+    private final LocaleManager localeManager;
 
 
     // all of these aren't used with only my part of the code
@@ -72,9 +75,10 @@ public class FoodpalApplicationCtrl {
     private Button addPreparationStepButton;
 
     @Inject
-    public FoodpalApplicationCtrl(MainCtrl mainCtrl, ServerUtils server) {
+    public FoodpalApplicationCtrl(MainCtrl mainCtrl, ServerUtils server, LocaleManager localeManager) {
         this.mainCtrl = mainCtrl;
         this.server = server;
+        this.localeManager = localeManager;
     }
 
     @FXML
@@ -192,16 +196,20 @@ public class FoodpalApplicationCtrl {
     @FXML
     private void switchToEnglish() {
         System.out.println("Switch language to EN");
+        localeManager.setLocale(Locale.of("en"));
     }
 
     @FXML
     private void switchToDutch() {
         System.out.println("Switch language to NL");
+        localeManager.setLocale(Locale.of("nl"));
     }
 
     @FXML
     private void switchToPolish() {
         System.out.println("Switch language to PL");
+        localeManager.setLocale(Locale.of("pl"));
+
     }
 
 

client/src/main/java/client/utils/LocaleAware.java

@@ -0,0 +1,38 @@
+package client.utils;
+
+import javafx.fxml.Initializable;
+import java.net.URL;
+import java.util.ResourceBundle;
+
+public interface LocaleAware extends Initializable {
+
+    /**
+     * Updates all text when locale changes.
+     * Must be implemented by each controller.
+     */
+    void updateText();
+
+    /**
+     * Returns the injected LocaleManager.
+     * Must be implemented by each controller.
+     */
+    LocaleManager getLocaleManager();
+
+    @Override
+    default void initialize(URL location, ResourceBundle resources) {
+        updateText();
+
+        getLocaleManager().getBundleProperty().addListener((_, _, _) -> updateText());
+
+        initializeComponents();
+    }
+
+    default String getLocaleString(String key) {
+        return getLocaleManager().getBundle().getString(key);
+    }
+
+    /**
+     * Optional function for initialization of components. Runs after localization.
+     */
+    default void initializeComponents() {}
+}

client/src/main/java/client/utils/LocaleManager.java

@@ -0,0 +1,40 @@
+package client.utils;
+
+import javafx.beans.property.ObjectProperty;
+import javafx.beans.property.SimpleObjectProperty;
+import java.util.Locale;
+import java.util.ResourceBundle;
+
+public class LocaleManager {
+    private final ObjectProperty<Locale> currentLocale = new SimpleObjectProperty<>(Locale.ENGLISH);
+    private final ObjectProperty<ResourceBundle> currentBundle = new SimpleObjectProperty<>();
+
+    private static final String RESOURCE_BUNDLE_PATH = "locale/lang";
+
+    public LocaleManager() {
+        // TODO: Set currentLocale to config value instead of EN default.
+        updateBundle();
+        currentLocale.addListener((_, _, _) -> updateBundle());
+    }
+
+    private void updateBundle() {
+        ResourceBundle bundle = ResourceBundle.getBundle(RESOURCE_BUNDLE_PATH, currentLocale.get());
+        currentBundle.set(bundle);
+    }
+
+    public void setLocale(Locale locale) {
+        currentLocale.set(locale);
+    }
+
+    public Locale getLocale() {
+        return currentLocale.get();
+    }
+
+    public ResourceBundle getBundle() {
+        return currentBundle.get();
+    }
+
+    public ObjectProperty<ResourceBundle> getBundleProperty() {
+        return currentBundle;
+    }
+}

client/src/main/resources/client/scenes/AddName.fxml

@@ -7,9 +7,9 @@
 
 <AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="94.0" prefWidth="470.0" xmlns="http://javafx.com/javafx/23.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="client.scenes.AddNameCtrl">
    <children>
-      <Button layoutX="417.0" layoutY="54.0" mnemonicParsing="false" onAction="#ok" text="Ok" />
+      <Button fx:id="okButton" layoutX="417.0" layoutY="54.0" mnemonicParsing="false" onAction="#ok" text="Ok" />
-      <Button layoutX="349.0" layoutY="54.0" mnemonicParsing="false" onAction="#cancel" text="Cancel" />
+      <Button fx:id="cancelButton" layoutX="349.0" layoutY="54.0" mnemonicParsing="false" onAction="#cancel" text="Cancel" />
       <TextField fx:id="recipeName" layoutX="109.0" layoutY="24.0" prefHeight="18.0" prefWidth="292.0" />
-      <Label layoutX="28.0" layoutY="29.0" text="Recipe Name" />
+      <Label fx:id="recipeNameLabel" layoutX="28.0" layoutY="29.0" text="Recipe Name" />
    </children>
 </AnchorPane>

client/src/main/resources/locale/lang.properties

@@ -0,0 +1,4 @@
+add.recipe.title=Create recipe
+add.recipe.label=Recipe Name
+add.recipe.button.ok=Ok
+add.recipe.button.cancel=Cancel

client/src/main/resources/locale/lang_en.properties

@@ -0,0 +1,4 @@
+add.recipe.title=Create recipe
+add.recipe.label=Recipe Name
+add.recipe.button.ok=Ok
+add.recipe.button.cancel=Cancel

client/src/main/resources/locale/lang_nl.properties

@@ -0,0 +1,4 @@
+add.recipe.title=Recept aanmaken
+add.recipe.label=Receptnaam
+add.recipe.button.ok=Ok
+add.recipe.button.cancel=Annuleren

client/src/main/resources/locale/lang_pl.properties

@@ -0,0 +1,4 @@
+add.recipe.title=Utwórz przepis
+add.recipe.label=Nazwa przepisu
+add.recipe.button.ok=Ok
+add.recipe.button.cancel=Anuluj