Set up eventbus system

src/main/java/app/Main.java

@@ -2,8 +2,6 @@ package app;
 
 import java.io.IOException;
 
-import com.google.common.eventbus.EventBus;
-
 import javafx.application.Application;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Parent;
@@ -13,8 +11,6 @@ import javafx.stage.Stage;
 
 public class Main extends Application {
 
-  EventBus eventBus;
-
   /**
    * Boilerplate function to launch the application
    */
@@ -38,7 +34,11 @@ public class Main extends Application {
     try {
       document = fxmlLoader.load();
     } catch (IOException e) {
-      throw new RuntimeException(e);
+      System.err.println(e);
+      throw new RuntimeException(
+        "Couldn\'t find or missing permissions to load "
+        + getClass().getResource("/fxml/Main.fxml")
+      );
     }
 
     Scene scene = new Scene(document);
@@ -46,7 +46,4 @@ public class Main extends Application {
     window.show();
   }
 
-  public EventBus getEventBus() {
-    return this.eventBus;
-  }
 }

src/main/java/app/MainController.java

@@ -1,15 +1,49 @@
 package app;
 
 import java.net.URL;
+import java.util.List;
 import java.util.ResourceBundle;
 
+import com.google.common.eventbus.EventBus;
+
+import app.controllers.*;
 import app.model.Model;
+import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 
 public class MainController implements Initializable {
 
+  @FXML
+  private EditorController editorController;
+
+  @FXML
+  private FiletreeController filetreeController;
+
+  @FXML
+  private ModelineController modelineController;
+
+  @FXML
+  private MenubarController menubarController;
+
+  private EventBus eventBus;
   private Model model;
 
+  @Override
+  public void initialize(URL url, ResourceBundle resourceBundle) {
+    this.eventBus = new EventBus();
+
+    List.of(
+      editorController,
+      filetreeController,
+      modelineController,
+      menubarController
+    ).forEach(c -> c.setEventBus(this.eventBus));
+  }
+
+  public EventBus getEventBus() {
+    return this.eventBus;
+  }
+
   /**
    * Links the controller to the global model
    * @param model The model to be linked
@@ -18,11 +52,4 @@ public class MainController implements Initializable {
     this.model = model;
   }
 
-  /**
-   * Initializes and customizes the properties of the javafx objects.
-   */
-  @Override
-  public void initialize(URL url, ResourceBundle resourceBundle) {
-    //
-  }
 }

src/main/java/app/controllers/Controller.java

@@ -0,0 +1,14 @@
+package app.controllers;
+
+import com.google.common.eventbus.EventBus;
+
+/**
+ * Interface to make a controller that contains an EventBus
+ */
+public interface Controller {  
+  /**
+   * Registers the main EventBus into the controller.
+   * @param eventBus the main EventBus
+   */
+  public void setEventBus(EventBus eventBus);
+}

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

@@ -3,21 +3,38 @@ package app.controllers;
 import java.net.URL;
 import java.util.ResourceBundle;
 
+import com.google.common.eventbus.EventBus;
+
 import org.fxmisc.richtext.CodeArea;
 import org.fxmisc.richtext.LineNumberFactory;
+import org.fxmisc.richtext.model.TwoDimensional.Bias;
+import org.fxmisc.richtext.model.TwoDimensional.Position;
 
+import app.events.EditorChangedEvent;
 import app.model.Model;
-import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
+import javafx.scene.input.KeyEvent;
 
-public class EditorController implements Initializable {
+public class EditorController implements Initializable, Controller {
 
   @FXML
   private CodeArea editor;
 
+  private EventBus eventBus;
   private Model model;
 
+  @Override
+  public void initialize(URL url, ResourceBundle resourceBundle) {
+    editor.setParagraphGraphicFactory(LineNumberFactory.get(editor));
+  }
+
+  @Override
+  public void setEventBus(EventBus eventBus) {
+    this.eventBus = eventBus;
+    this.eventBus.register(this);
+  }
+
   /**
    * Links the controller to the global model
    * @param model The model to be linked
@@ -26,21 +43,20 @@ public class EditorController implements Initializable {
     this.model = model;
   }
 
-  /**
-   * Initializes and customizes the properties of the javafx objects.
-   */
-  @Override
-  public void initialize(URL url, ResourceBundle resourceBundle) {
-    editor.setParagraphGraphicFactory(LineNumberFactory.get(editor));
-  }
-
   /**
    * Handles events from the editor, and reflects them in the model
    * @param event The object containing metadata of the event
    */
   @FXML
-  public void editorChanged(ActionEvent event) {
+  public void editorChanged(KeyEvent event) {
-    //
+    int offset = this.editor.getCaretPosition();
+    Position pos = this.editor.offsetToPosition(offset, Bias.Forward);
+    this.eventBus.post(
+      new EditorChangedEvent(
+        event.getCode(),
+        pos.getMajor() + 1,
+        pos.getMinor()
+      ));
   }
 
 }

src/main/java/app/controllers/FiletreeController.java

@@ -6,15 +6,27 @@ import javafx.scene.control.TreeView;
 import java.net.URL;
 import java.util.ResourceBundle;
 
+import com.google.common.eventbus.EventBus;
+
 import app.model.Model;
 import javafx.fxml.Initializable;
 
-public class FiletreeController implements Initializable {
+public class FiletreeController implements Initializable, Controller {
   
-  // TODO: Add component references, and event handlers
+  private EventBus eventBus;
-
   private Model model;
 
+  @Override
+  public void initialize(URL url, ResourceBundle resourceBundle) {
+    // TODO: implement
+  }
+
+  @Override
+  public void setEventBus(EventBus eventBus) {
+    this.eventBus = eventBus;
+    this.eventBus.register(this);
+  }
+
   /**
    * Links the controller to the global model
    * @param model The model to be linked
@@ -23,12 +35,4 @@ public class FiletreeController implements Initializable {
     this.model = model;
   }
 
-  /**
-   * Initializes and customizes the properties of the javafx objects.
-   */
-  @Override
-  public void initialize(URL url, ResourceBundle resourceBundle) {
-    // TODO: implement
-  }
-
 }

src/main/java/app/controllers/MenubarController.java

@@ -3,15 +3,27 @@ package app.controllers;
 import java.net.URL;
 import java.util.ResourceBundle;
 
+import com.google.common.eventbus.EventBus;
+
 import app.model.Model;
 import javafx.fxml.Initializable;
 
-public class MenubarController implements Initializable {
+public class MenubarController implements Initializable, Controller {
   
-  // TODO: Add component references, and event handlers
+  private EventBus eventBus;
-
   private Model model;
 
+  @Override
+  public void initialize(URL url, ResourceBundle resourceBundle) {
+    // TODO: implement
+  }
+
+  @Override
+  public void setEventBus(EventBus eventBus) {
+    this.eventBus = eventBus;
+    this.eventBus.register(this);
+  }
+
   /**
    * Links the controller to the global model
    * @param model The model to be linked
@@ -20,12 +32,5 @@ public class MenubarController implements Initializable {
     this.model = model;
   }
 
-  /**
-   * Initializes and customizes the properties of the javafx objects.
-   */
-  @Override
-  public void initialize(URL url, ResourceBundle resourceBundle) {
-    // TODO: implement
-  }
 
 }

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

@@ -3,15 +3,37 @@ package app.controllers;
 import java.net.URL;
 import java.util.ResourceBundle;
 
+import com.google.common.eventbus.EventBus;
+import com.google.common.eventbus.Subscribe;
+
+import app.events.EditorChangedEvent;
 import app.model.Model;
+import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
+import javafx.scene.control.Label;
 
-public class ModelineController implements Initializable {
+public class ModelineController implements Initializable, Controller {
   
-  // TODO: Add component references, and event handlers
+  @FXML
+  private Label columnrow;
 
+  @FXML
+  private Label language;
+    
+  private EventBus eventBus;
   private Model model;
 
+  @Override
+  public void initialize(URL url, ResourceBundle resourceBundle) {
+    setColumnRow(0, 1);
+  }
+
+  @Override
+  public void setEventBus(EventBus eventBus) {
+    this.eventBus = eventBus;
+    this.eventBus.register(this);
+  }
+
   /**
    * Links the controller to the global model
    * @param model The model to be linked
@@ -21,11 +43,17 @@ public class ModelineController implements Initializable {
   }
 
   /**
-   * Initializes and customizes the properties of the javafx objects.
+   * Update the colum row counter
+   * @param column The column number
+   * @param row The row number
    */
-  @Override
+  public void setColumnRow(int column, int row) {
-  public void initialize(URL url, ResourceBundle resourceBundle) {
+    this.columnrow.setText(String.format("[%d:%d]", row, column));
-    // TODO: implement
   }
 
-}
+  @Subscribe
+  public void handle(EditorChangedEvent event) {
+    System.out.println("Key pressed: " + event.getKeyCode());
+    this.setColumnRow(event.getColumn(), event.getLineNumber());
+  }
+}

src/main/java/app/events/EditorChangedEvent.java

@@ -0,0 +1,29 @@
+package app.events;
+
+import javafx.scene.input.KeyCode;
+
+public class EditorChangedEvent implements Event {
+  
+  private KeyCode keyCode;
+  private int lineNumber;
+  private int column;
+
+  public EditorChangedEvent(KeyCode keyCode, int lineNumber, int column) {
+    this.keyCode = keyCode;
+    this.lineNumber = lineNumber;
+    this.column = column;
+  }
+
+  public KeyCode getKeyCode() {
+    return this.keyCode;
+  }
+
+  public int getLineNumber() {
+    return this.lineNumber;
+  }
+
+  public int getColumn() {
+    return column;
+  }
+  
+}

src/main/java/app/events/Event.java

@@ -0,0 +1,3 @@
+package app.events;
+
+interface Event {}

src/main/resources/fxml/Main.fxml

@@ -2,6 +2,7 @@
 
 <?import javafx.scene.control.SplitPane?>
 <?import javafx.scene.layout.BorderPane?>
+<?import javafx.scene.layout.AnchorPane?>
 <?import javafx.scene.text.TextFlow?>
 
 <BorderPane 
@@ -13,7 +14,7 @@
 
   <top>
     <!-- Menubar -->
-    <fx:include source="components/Menubar.fxml" fx:id="MenubarRoot"/>
+    <fx:include source="components/Menubar.fxml" fx:id="menubar"/>
   </top>
 
   <center>
@@ -23,10 +24,10 @@
     <items>
   
       <!-- File tree -->
-      <fx:include source="components/Filetree.fxml" fx:id="FiletreeRoot"/>
+      <fx:include source="components/Filetree.fxml" fx:id="filetree"/>
 
       <!-- Editor -->
-      <fx:include source="components/Editor.fxml" fx:id="EditorRoot"/>
+      <fx:include source="components/Editor.fxml" fx:id="editor"/>
   
     </items>
     </SplitPane>
@@ -34,7 +35,7 @@
   
   <bottom>
     <!-- Modeline -->
-    <fx:include source="components/Modeline.fxml" fx:id="ModelineRoot"/>
+    <fx:include source="components/Modeline.fxml" fx:id="modeline"/>
   </bottom>
 
 </BorderPane>

src/main/resources/fxml/components/Editor.fxml

@@ -9,6 +9,6 @@
   xmlns:fx="http://javafx.com/fxml/1"
   fx:controller="app.controllers.EditorController">
   <content>
-    <CodeArea fx:id="editor"/>
+    <CodeArea fx:id="editor" onKeyPressed="#editorChanged"/>
   </content>
 </VirtualizedScrollPane>