All locale should work now

client/src/main/java/client/Main.java

@@ -53,6 +53,6 @@ public class Main extends Application {
         var addStep = FXML.load(AddStepsCtrl.class, "client", "scenes", "AddSteps.fxml");
 
         var mainCtrl = INJECTOR.getInstance(MainCtrl.class);
-        mainCtrl.initialize(primaryStage, addName, foodpal, addIngredient, addStep);
+        mainCtrl.setup(primaryStage, addName, foodpal, addIngredient, addStep);
     }
 }

client/src/main/java/client/scenes/MainCtrl.java

@@ -15,6 +15,10 @@
  */
 package client.scenes;
 
+import client.utils.LocaleAware;
+import client.utils.LocaleManager;
+import jakarta.inject.Inject;
+import javafx.fxml.FXML;
 import javafx.scene.Parent;
 import javafx.scene.Scene;
 import javafx.stage.Stage;
@@ -22,28 +26,42 @@ import javafx.util.Pair;
 
 import java.io.IOException;
 
-public class MainCtrl {
+public class MainCtrl implements LocaleAware {
+    private final LocaleManager localeManager;
 
+    @FXML
     private Stage primaryStage;
 
+    @FXML
     private AddNameCtrl addNameCtrl;
     private Scene addName;
 
+    @FXML
     private FoodpalApplicationCtrl foodpalCtrl;
     private Scene foodpal;
 
+    @FXML
     private AddIngredientCtrl addIngredientCtrl;
     private Scene addIngredient;
 
+    @FXML
     private AddStepsCtrl addStepsCtrl;
     private Scene addStep;
 
-    public void initialize(Stage primaryStage,
-                           Pair<AddNameCtrl, Parent> addName,
-                           Pair<FoodpalApplicationCtrl, Parent> foodpal,
-                           Pair<AddIngredientCtrl, Parent> addIngredient,
-                           Pair<AddStepsCtrl, Parent> addStep
-                           ) throws IOException, InterruptedException {
+    private String addNameTitle = "Naming recipes (default)";
+    private String addIngredientTitle = "To add ingredients (default)";
+    private String addStepTitle = "To add preparation steps (default)";
+
+    @Inject
+    public MainCtrl(LocaleManager localeManager) {
+        this.localeManager = localeManager;
+    }
+
+    public void setup(Stage primaryStage,
+                      Pair<AddNameCtrl, Parent> addName,
+                      Pair<FoodpalApplicationCtrl, Parent> foodpal,
+                      Pair<AddIngredientCtrl, Parent> addIngredient,
+                      Pair<AddStepsCtrl, Parent> addStep) throws IOException, InterruptedException {
 
         this.primaryStage = primaryStage;
 
@@ -59,14 +77,26 @@ public class MainCtrl {
         this.addStepsCtrl = addStep.getKey();
         this.addStep = new Scene(addStep.getValue());
 
-
         showFoodpal();
         primaryStage.show();
+
+        initialize(); // Initialize LocaleManager stuff manually since MainCtrl isn't loaded from FXML.
     }
 
+    @Override
+    public void updateText() {
+        addNameTitle = getLocaleString("add.recipe.title");
+        addStepTitle = getLocaleString("add.step.title");
+        addIngredientTitle = getLocaleString("add.ingredient.title");
+    }
+
+    @Override
+    public LocaleManager getLocaleManager() {
+        return localeManager;
+    }
 
     public void showAddName() {
-        primaryStage.setTitle("Naming recipes");
+        primaryStage.setTitle(addNameTitle);
         primaryStage.setScene(addName);
         addName.setOnKeyPressed(e -> {
             try {
@@ -84,7 +114,7 @@ public class MainCtrl {
     }
 
     public void showAddIngredient() {
-        primaryStage.setTitle("To add ingredients");
+        primaryStage.setTitle(addIngredientTitle);
         primaryStage.setScene(addIngredient);
         addIngredient.setOnKeyPressed(e -> {
             try {
@@ -97,7 +127,7 @@ public class MainCtrl {
     }
 
     public void showAddSteps() {
-        primaryStage.setTitle("To add preparation steps");
+        primaryStage.setTitle(addStepTitle);
         primaryStage.setScene(addStep);
         addStep.setOnKeyPressed(e -> {
             try {

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

@@ -27,6 +27,10 @@ public interface LocaleAware extends Initializable {
         initializeComponents();
     }
 
+    default void initialize() {
+        initialize(null, null);
+    }
+
     default String getLocaleString(String key) {
         return getLocaleManager().getBundle().getString(key);
     }

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

@@ -25,18 +25,22 @@ public class LocaleManager {
         currentBundle.set(bundle);
     }
 
+    @SuppressWarnings("unused")
     public void setLocale(Locale locale) {
         currentLocale.set(locale);
     }
 
+    @SuppressWarnings("unused")
     public Locale getLocale() {
         return currentLocale.get();
     }
 
+    @SuppressWarnings("unused")
     public ResourceBundle getBundle() {
         return currentBundle.get();
     }
 
+    @SuppressWarnings("unused")
     public ObjectProperty<ResourceBundle> getBundleProperty() {
         return currentBundle;
     }

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

@@ -1,6 +1,6 @@
 add.ingredient.title=Dodaj składnik
 add.recipe.title=Utwórz przepis
-add.step.title=Dodaj instrukcje
+add.step.title=Dodaj instrukcję
 
 add.ingredient.label=Składnik
 add.recipe.label=Nazwa przepisu

client/src/test/java/client/scenes/MainCtrlTest.java

@@ -15,6 +15,7 @@
  */
 package client.scenes;
 
+import client.utils.LocaleManager;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -24,7 +25,7 @@ public class MainCtrlTest {
 
     @BeforeEach
     public void setup() {
-        sut = new MainCtrl();
+        sut = new MainCtrl(new LocaleManager());
     }
 
     @Test