Added key shortcuts and system commands for logout, exit and settings

Additionally added **buggy** logout mechanism: LocalDB is not reset
properly and IndexOutOfBoundsExceptions occur in the UI

client/src/main/java/envoy/client/data/LocalDB.java

@@ -7,7 +7,7 @@ import java.time.Instant;
 import java.util.*;
 import java.util.logging.Level;
 
-import envoy.client.event.EnvoyCloseEvent;
+import envoy.client.event.*;
 import envoy.data.*;
 import envoy.event.*;
 import envoy.exception.EnvoyException;
@@ -213,11 +213,19 @@ public final class LocalDB implements EventListener {
 	private void onNewAuthToken(NewAuthToken evt) { authToken = evt.get(); }
 
 	/**
-	 * Deletes the file that stores the "remember me" feature.
+	 * Deletes all associations to the current user.
 	 *
 	 * @since Envoy Client v0.2-beta
 	 */
-	public void deleteLoginFile() { lastLoginFile.delete(); }
+	@Event(eventType = Logout.class, priority = 100)
+	public void onLogout() {
+		lastLoginFile.delete();
+		userFile	= null;
+		user		= null;
+		authToken	= null;
+		chats.clear();
+		cacheMap = new CacheMap();
+	}
 
 	/**
 	 * @return a {@code Map<String, User>} of all users stored locally with their

client/src/main/java/envoy/client/event/Logout.java

@@ -0,0 +1,14 @@
+package envoy.client.event;
+
+import envoy.event.Event.Valueless;
+
+/**
+ * Indicates that a logout has been requested.
+ *
+ * @author leon
+ * @since Envoy Client v0.2-beta
+ */
+public class Logout extends Valueless {
+
+	private static final long serialVersionUID = 1L;
+}

client/src/main/java/envoy/client/helper/ShutdownHelper.java

@@ -1,11 +1,11 @@
 package envoy.client.helper;
 
-import javafx.application.Platform;
 import javafx.scene.control.Alert;
 import javafx.scene.control.Alert.AlertType;
 
 import envoy.client.data.*;
-import envoy.client.event.EnvoyCloseEvent;
+import envoy.client.event.*;
+import envoy.client.ui.SceneContext.SceneInfo;
 
 import dev.kske.eventbus.EventBus;
 
@@ -25,21 +25,31 @@ public class ShutdownHelper {
 	 *
 	 * @since Envoy Client v0.2-beta
 	 */
-	public static void exit() { exit(Settings.getInstance().isHideOnClose(), true); }
+	public static void exit() {
+		if (Settings.getInstance().isHideOnClose()) Context.getInstance().getStage().setIconified(true);
+		else {
+			final var alert = new Alert(AlertType.CONFIRMATION);
+			alert.setTitle("Exit?");
+			alert.setContentText("Are you sure you want to exit Envoy?");
+			AlertHelper.confirmAction(alert, () -> { EventBus.getInstance().dispatch(new EnvoyCloseEvent()); System.exit(0); });
+		}
+	}
 
 	/**
-	 * Exits the currently open Envoy application or minimizes it.
-	 * Does not necessarily shutdown VM.
+	 * Logs the current user out and reopens
+	 * {@link envoy.client.ui.controller.LoginScene}.
 	 *
-	 * @param minimize   whether Envoy should be minimized instead of closed
-	 * @param shutdownVM whether the JVM should shutdown
 	 * @since Envoy Client v0.2-beta
 	 */
-	public static void exit(boolean minimize, boolean shutdownVM) {
-		if (minimize) Context.getInstance().getStage().setIconified(true);
-		else {
+	public static void logout() {
+		final var alert = new Alert(AlertType.CONFIRMATION);
+		alert.setTitle("Logout?");
+		alert.setContentText("Are you sure you want to log out?");
+
+		AlertHelper.confirmAction(alert, () -> {
 			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
-			if (shutdownVM) System.exit(0);
-		}
+			EventBus.getInstance().dispatch(new Logout());
+			Context.getInstance().getSceneContext().load(SceneInfo.LOGIN_SCENE);
+		});
 	}
 }

client/src/main/java/envoy/client/net/Client.java

@@ -240,7 +240,10 @@ public final class Client implements EventListener, Closeable {
 			logger.log(Level.INFO, "Closing connection...");
 			try {
 				socket.close();
-			} catch (final IOException e) {}
+				online = false;
+			} catch (final IOException e) {
+				logger.log(Level.WARNING, "Failed to close socket: ", e);
+			}
 		}
 	}
 

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

@@ -108,8 +108,16 @@ public final class SceneContext implements EventListener {
 			sceneStack.push(scene);
 			stage.setScene(scene);
 
-			// Adding the option to exit Linux-like with "Control" + "Q"
+			// Add the option to exit Linux-like with "Control" + "Q"
 			scene.getAccelerators().put(new KeyCodeCombination(KeyCode.Q, KeyCombination.CONTROL_DOWN), ShutdownHelper::exit);
+			// Add the option to logout using "Control"+"Shift"+"L"
+			scene.getAccelerators()
+				.put(new KeyCodeCombination(KeyCode.L, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN), ShutdownHelper::logout);
+
+			// Add the option to open the settings scene with "Control"+"S", if being in
+			// chat scene
+			if (sceneInfo.equals(SceneInfo.CHAT_SCENE))
+				scene.getAccelerators().put(new KeyCodeCombination(KeyCode.S, KeyCombination.CONTROL_DOWN), () -> load(SceneInfo.SETTINGS_SCENE));
 
 			// The LoginScene is the only scene not intended to be resized
 			// As strange as it seems, this is needed as otherwise the LoginScene won't be

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

@@ -56,6 +56,8 @@ public final class Startup extends Application {
 	 */
 	@Override
 	public void start(Stage stage) throws Exception {
+
+		// Initialize config and logger
 		try {
 			config.loadAll(Startup.class, "client.properties", getParameters().getRaw().toArray(new String[0]));
 			EnvoyLog.initialize(config);
@@ -68,7 +70,7 @@ public final class Startup extends Application {
 
 		// Initialize the local database
 		try {
-			var localDBFile = new File(config.getHomeDirectory(), config.getServer());
+			final var localDBFile = new File(config.getHomeDirectory(), config.getServer());
 			logger.info("Initializing LocalDB at " + localDBFile);
 			localDB = new LocalDB(localDBFile);
 		} catch (IOException | EnvoyException e) {

client/src/main/java/envoy/client/ui/controller/ChatScene.java

@@ -28,8 +28,10 @@ import envoy.client.data.*;
 import envoy.client.data.audio.AudioRecorder;
 import envoy.client.data.commands.*;
 import envoy.client.event.*;
+import envoy.client.helper.ShutdownHelper;
 import envoy.client.net.*;
 import envoy.client.ui.*;
+import envoy.client.ui.SceneContext.SceneInfo;
 import envoy.client.ui.custom.TextInputContextMenu;
 import envoy.client.ui.listcell.*;
 import envoy.client.util.ReflectionUtil;
@@ -338,6 +340,19 @@ public final class ChatScene implements EventListener, Restorable {
 			.setDescription("See for yourself :)")
 			.setNumberOfArguments(2)
 			.build("dabr");
+
+		// Logout initialization
+		builder.setAction(text -> ShutdownHelper.logout()).setNumberOfArguments(0).setDescription("Logs you out.").build("logout");
+
+		// Exit initialization
+		builder.setAction(text -> ShutdownHelper.exit()).setNumberOfArguments(0).setDescription("Exits the program").build("exit", false);
+		builder.build("q");
+
+		// Open settings scene initialization
+		builder.setAction(text -> sceneContext.load(SceneInfo.SETTINGS_SCENE))
+			.setNumberOfArguments(0)
+			.setDescription("Opens the settings screen")
+			.build("settings");
 	}
 
 	@Override

client/src/main/java/envoy/client/ui/settings/GeneralSettingsPane.java

@@ -3,7 +3,8 @@ package envoy.client.ui.settings;
 import javafx.scene.control.*;
 
 import envoy.client.data.SettingsItem;
-import envoy.client.event.*;
+import envoy.client.event.ThemeChangeEvent;
+import envoy.client.helper.ShutdownHelper;
 import envoy.data.User.UserStatus;
 
 import dev.kske.eventbus.EventBus;
@@ -61,5 +62,12 @@ public final class GeneralSettingsPane extends SettingsPane {
 		// TODO add action when value is changed
 		statusComboBox.setOnAction(e -> {});
 		getChildren().add(statusComboBox);
+
+		final var logoutButton = new Button("Logout");
+		logoutButton.setOnAction(e -> ShutdownHelper.logout());
+		final var logoutTooltip = new Tooltip("Brings you back to the login screen and removes \"remember me\" status from this account");
+		logoutTooltip.setWrapText(true);
+		logoutButton.setTooltip(logoutTooltip);
+		getChildren().add(logoutButton);
 	}
 }