Added functionality to update tasklabels on events where focus is lost

gui/tasksetgui/TaskLabel.java

@@ -4,13 +4,16 @@ import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
 import java.awt.event.MouseListener;
 import java.awt.event.MouseEvent;
+import java.awt.event.FocusListener;
+import java.awt.event.FocusEvent;
 import java.awt.Color;
 import javax.swing.JTextField;
 
 import gui.UpdateListener;
 
-public class TaskLabel extends JTextField implements MouseListener {
+public class TaskLabel extends JTextField implements FocusListener, MouseListener {
 
+    private String previousText;
     private UpdateListener updateListener;
     private MarkListener markListener;
 
@@ -24,6 +27,7 @@ public class TaskLabel extends JTextField implements MouseListener {
 
         // Add Listener for when mouse does something with object
         addMouseListener(this);
+        addFocusListener(this);
 
         // Add Listener that does something with object when <Enter> is pressed
         addActionListener(new ActionListener() {
@@ -51,7 +55,10 @@ public class TaskLabel extends JTextField implements MouseListener {
         this.markListener = markListener;
     }
     
-    // MouseListener Functions.
+    /*
+     * MouseListener Functions.
+     */
+
     /*
      * Invoked when the mouse button has been clicked (pressed and released) on a component.
      */
@@ -78,4 +85,25 @@ public class TaskLabel extends JTextField implements MouseListener {
      * Invoked when the mouse exits a component.
      */
     public void mouseExited(MouseEvent e) {}
+
+    /*
+     * FocusListener Functions.
+     */
+
+    /*
+     * Invoked when a component gains the keyboard focus.
+     */
+    public void focusGained(FocusEvent e) {
+        previousText = getText();
+    }
+
+    /*
+     * Invoked when a component loses the keyboard focus.
+     */
+    public void focusLost(FocusEvent e) {
+        if (!previousText.equals(getText()) && getText().matches("[0-9]+")) {
+            System.out.println(getText());
+            updateListener.update();
+        }
+    }
 }