Add Save/Modified display in modeline

src/main/java/app/controllers/EditorController.java

@@ -3,7 +3,6 @@ package app.controllers;
 import java.net.URL;
 import java.util.Collection;
 import java.util.ResourceBundle;
-import java.util.concurrent.CompletableFuture;
 
 import com.google.common.eventbus.EventBus;
 import com.google.common.eventbus.Subscribe;
@@ -16,6 +15,7 @@ import org.fxmisc.richtext.model.TwoDimensional.Position;
 
 import app.events.EditorChangedEvent;
 import app.events.LanguageChangedEvent;
+import app.events.FileSaveStateChangedEvent;
 import app.model.Model;
 import app.service.LanguageOperations;
 import javafx.fxml.FXML;
@@ -71,6 +71,10 @@ public class EditorController implements Initializable, Controller {
     Position pos = this.editor.offsetToPosition(offset, Bias.Forward);
     this.eventBus.post(new EditorChangedEvent(pos.getMajor() + 1, pos.getMinor()));
 
+
+    if (Model.getFileIsSaved())
+      this.eventBus.post(new FileSaveStateChangedEvent(false));
+
     this.refreshHighlighting();
   }