Automate switching between languages

src/main/java/app/model/Model.java

@@ -1,12 +1,18 @@
 package app.model;
 
+import javafx.scene.Scene;
+
 /**
- * Data model of the application
+ * Data model of the application.
+ * 
+ * Contains a static reference to state that has to be accessed
+ * by multiple pieces in the application, including the primary scene.
  */
 public class Model {
   private static String activeFilePath;
   private static String currentProjectPath;
   private static ProgrammingLanguage currentProgrammingLanguage;
+  private static Scene scene;
 
   public static String getActiveFilePath() {
     return activeFilePath;
@@ -20,7 +26,15 @@ public class Model {
     return currentProgrammingLanguage;
   }
 
+  public static Scene getScene() {
+    return scene;
+  }
+
   public static void setLanguage(ProgrammingLanguage language) {
     Model.currentProgrammingLanguage = language;
   }
+
+  public static void setScene(Scene scene) {
+    Model.scene = scene;
+  }
 }