Add filename label

src/main/java/app/controllers/ModelineController.java

@@ -8,6 +8,7 @@ import com.google.common.eventbus.Subscribe;
 
 import app.events.EditorChangedEvent;
 import app.events.LanguageChangedEvent;
+import app.events.OpenFileEvent;
 import app.events.FileSaveStateChangedEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -17,6 +18,9 @@ import javafx.scene.control.Label;
  * A FXML controller that controls the modeline component of the UI
  */
 public class ModelineController implements Initializable, Controller {
+
+  @FXML
+  private Label filename; 
   
   @FXML
   private Label saveState;
@@ -78,4 +82,11 @@ public class ModelineController implements Initializable, Controller {
   private void handle(LanguageChangedEvent event) {
     this.language.setText(event.getLanguage());
   }
+
+  @Subscribe
+  private void handle(OpenFileEvent event) {
+    this.filename.setText(
+      event.getPath().map(path -> path.getFileName().toString()).orElse("New file")
+    );
+  }
 }

src/main/resources/fxml/components/Modeline.fxml

@@ -11,6 +11,7 @@
   fx:controller="app.controllers.ModelineController"
   alignment="CENTER_LEFT">
   <Label text="Modeline :)"/>
+  <Label fx:id="filename" text="New file"/>
   <Region HBox.hgrow="ALWAYS"/>
   <Label fx:id="saveState" text="Saved!"/>
   <Label fx:id="columnrow" text="[y:x]"/>