Add some documentation

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

@@ -32,6 +32,9 @@ import app.service.LanguageOperations;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 
+/**
+ * A FXML controller that controls the editor component of the UI
+ */
 public class EditorController implements Initializable, Controller {
 
   @FXML
@@ -73,8 +76,11 @@ public class EditorController implements Initializable, Controller {
   }
 
   /**
-   * Uses Model.language to determine whether the current line/selection is
-   * commented or not, and toggles the comment.
+   * Uses the {@link app.model.ProgrammingLanguage ProgrammingLanguage} in 
+   * {@link app.model.Model Model} to determine whether the current line/selection
+   * is commented or not, and toggles the comment.
+   * 
+   * @see app.model.ProgrammingLanguage#commentLine(String) ProgrammingLanguage.commentLine(line)
    */
   private void toggleComment() {
     if (editor.getSelectedText().equals("")) {
@@ -101,6 +107,10 @@ public class EditorController implements Initializable, Controller {
     }
   }
 
+  /**
+   * Updates the wraptext setting of the code area
+   * @param isWrapText The new value for the setting
+   */
   private void setWrapText(boolean isWrapText) {
     this.editor.setWrapText(isWrapText);
   }
@@ -120,34 +130,33 @@ public class EditorController implements Initializable, Controller {
   }
 
   /**
-   * Refreshes the editor whenever the language is changed.
-   * 
-   * @param event
+   * Updates the content of the editor to a specific filepath
+   * @param filePath The path of the file
+   * @throws FileNotFoundException
    */
-
-  @Subscribe
-  private void handle(FileSelectedEvent event) {
-    try (Scanner sc = new Scanner(new File(event.getPath()))) {
+  private void setEditorContent(String filePath) {
+    try (Scanner sc = new Scanner(new File(filePath))) {
       editor.clear();
       while (sc.hasNextLine()) {
         editor.appendText(sc.nextLine());
         editor.appendText("\n");
       }
     } catch (FileNotFoundException ex) {
-      System.out.println(event.getPath());
+      // TODO: add better error handling and user feedback
+      System.err.println(filePath);
     }
   }
 
+  @Subscribe
+  private void handle(FileSelectedEvent event) {
+    this.setEditorContent(event.getPath());
+  }
+
   @Subscribe
   private void handle(LanguageChangedEvent event) {
     this.refreshHighlighting();
   }
 
-  /**
-   * Toggles a language specific comment of the line/selection
-   * 
-   * @param event
-   */
   @Subscribe
   private void handle(ToggleCommentEvent event) {
     this.toggleComment();