Saving settings and local database on application exit

Fixes #55

src/main/java/envoy/client/ui/ChatWindow.java

@@ -8,9 +8,6 @@ import java.awt.Insets;
 import java.awt.Toolkit;
 import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.io.IOException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -30,10 +27,9 @@ import envoy.client.Client;
 import envoy.client.Config;
 import envoy.client.LocalDB;
 import envoy.client.Settings;
-import envoy.client.util.EnvoyLog;
 import envoy.client.event.EventBus;
 import envoy.client.event.ThemeChangeEvent;
-
+import envoy.client.util.EnvoyLog;
 import envoy.schema.Message;
 import envoy.schema.User;
 
@@ -80,21 +76,6 @@ public class ChatWindow extends JFrame {
 		setLocationRelativeTo(null);
 		setIconImage(Toolkit.getDefaultToolkit().createImage(getClass().getClassLoader().getResource("envoy_logo.png")));
 
-		// Save chats when window closes
-		addWindowListener(new WindowAdapter() {
-
-			@Override
-			public void windowClosing(WindowEvent evt) {
-				try {
-					localDB.save();
-					Settings.getInstance().save();
-				} catch (IOException e1) {
-					e1.printStackTrace();
-					logger.log(Level.WARNING, "Unable to save the messages", e1);
-				}
-			}
-		});
-
 		contentPane.setBorder(new EmptyBorder(space, space, space, space));
 		setContentPane(contentPane);
 		GridBagLayout gbl_contentPane = new GridBagLayout();

src/main/java/envoy/client/ui/Startup.java

@@ -11,6 +11,7 @@ import javax.swing.JOptionPane;
 import envoy.client.Client;
 import envoy.client.Config;
 import envoy.client.LocalDB;
+import envoy.client.Settings;
 import envoy.client.util.EnvoyLog;
 import envoy.exception.EnvoyException;
 import envoy.schema.User;
@@ -126,5 +127,18 @@ public class Startup {
 				e.printStackTrace();
 			}
 		});
+		
+		// Save Settings and LocalDB on shutdown
+		Runtime.getRuntime().addShutdownHook(new Thread(() -> {
+			try {
+				logger.info("Saving local database...");
+				localDB.save();
+				logger.info("Saving settings...");
+				Settings.getInstance().save();
+			} catch (IOException e1) {
+				e1.printStackTrace();
+				logger.log(Level.WARNING, "Unable to save the messages", e1);
+			}
+		}));
 	}
 }