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

@@ -293,6 +293,9 @@ public final class LocalDB implements EventListener {
 		});
 	}
 
+	@Event(priority = 500)
+	private void onOwnStatusChange(OwnStatusChange statusChange) { user.setStatus(statusChange.get()); }
+
 	/**
 	 * @return a {@code Map<String, User>} of all users stored locally with their
 	 *         user names as keys

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

@@ -0,0 +1,21 @@
+package envoy.client.event;
+
+import envoy.data.User.UserStatus;
+import envoy.event.Event;
+
+/**
+ * Signifies a manual status change of the client user.
+ *
+ * @author Leon Hofmeister
+ * @since Envoy Client v0.3-beta
+ */
+public class OwnStatusChange extends Event<UserStatus> {
+
+	private static final long serialVersionUID = 1L;
+
+	/**
+	 * @param value the new user status of the client user
+	 * @since Envoy Client v0.3-beta
+	 */
+	public OwnStatusChange(UserStatus value) { super(value); }
+}

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

@@ -27,8 +27,6 @@ public final class AlertHelper {
 	 * @since Envoy Client v0.2-beta
 	 */
 	public static void confirmAction(Alert alert, Runnable action) {
-		alert.setHeight(225);
-		alert.setWidth(400);
 		alert.setHeaderText("");
 		if (Settings.getInstance().isAskForConfirmation()) alert.showAndWait().filter(ButtonType.OK::equals).ifPresent(bu -> action.run());
 		else action.run();

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

@@ -1,15 +1,8 @@
 package envoy.client.helper;
 
-import java.util.logging.Level;
-
-import javafx.scene.control.Alert;
-import javafx.scene.control.Alert.AlertType;
-
 import envoy.client.data.*;
-import envoy.client.event.*;
-import envoy.client.ui.SceneContext.SceneInfo;
+import envoy.client.event.EnvoyCloseEvent;
 import envoy.client.ui.StatusTrayIcon;
-import envoy.util.EnvoyLog;
 
 import dev.kske.eventbus.EventBus;
 
@@ -29,30 +22,21 @@ public final class ShutdownHelper {
 	 *
 	 * @since Envoy Client v0.2-beta
 	 */
-	public static void exit() {
-		if (Settings.getInstance().isHideOnClose() && StatusTrayIcon.isSupported()) Context.getInstance().getStage().setIconified(true);
+	public static void exit() { exit(false); }
+
+	/**
+	 * Exits Envoy immediately if {@code force = true},
+	 * else it can exit or minimize Envoy, depending on the current state of
+	 * {@link Settings#isHideOnClose()} and {@link StatusTrayIcon#isSupported()}.
+	 *
+	 * @param force whether to close in any case.
+	 * @since Envoy Client v0.2-beta
+	 */
+	public static void exit(boolean force) {
+		if (!force && Settings.getInstance().isHideOnClose() && StatusTrayIcon.isSupported()) Context.getInstance().getStage().setIconified(true);
 		else {
 			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
 			System.exit(0);
 		}
 	}
-
-	/**
-	 * Logs the current user out and reopens
-	 * {@link envoy.client.ui.controller.LoginScene}.
-	 *
-	 * @since Envoy Client v0.2-beta
-	 */
-	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, () -> {
-			EnvoyLog.getLogger(ShutdownHelper.class).log(Level.INFO, "A logout was requested");
-			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
-			EventBus.getInstance().dispatch(new Logout());
-			Context.getInstance().getSceneContext().load(SceneInfo.LOGIN_SCENE);
-		});
-	}
 }

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

@@ -13,6 +13,8 @@ import javafx.stage.Stage;
 import envoy.client.data.Settings;
 import envoy.client.event.*;
 import envoy.client.helper.ShutdownHelper;
+import envoy.client.util.UserUtil;
+import envoy.data.User.UserStatus;
 import envoy.util.EnvoyLog;
 
 import dev.kske.eventbus.*;
@@ -126,9 +128,22 @@ public final class SceneContext implements EventListener {
 		// Add the option to exit Linux-like with "Control" + "Q" or "Alt" + "F4"
 		accelerators.put(new KeyCodeCombination(KeyCode.Q, KeyCombination.CONTROL_DOWN), ShutdownHelper::exit);
 
-		// Add the option to logout using "Control"+"Shift"+"L" if not in login scene
-		if (sceneInfo != SceneInfo.LOGIN_SCENE)
-			accelerators.put(new KeyCodeCombination(KeyCode.L, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN), ShutdownHelper::logout);
+		if (sceneInfo != SceneInfo.LOGIN_SCENE) {
+
+			// Add the option to logout using "Control"+"Shift"+"L"
+			accelerators.put(new KeyCodeCombination(KeyCode.L, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN), UserUtil::logout);
+
+			// Add the option to change status using "Control" + "Shift" +
+			// (o)F(fline)/ A(way)/ B(usy)/(o)N(line)
+			accelerators.put(new KeyCodeCombination(KeyCode.F, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN),
+					() -> UserUtil.changeStatus(UserStatus.OFFLINE));
+			accelerators.put(new KeyCodeCombination(KeyCode.A, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN),
+					() -> UserUtil.changeStatus(UserStatus.AWAY));
+			accelerators.put(new KeyCodeCombination(KeyCode.B, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN),
+					() -> UserUtil.changeStatus(UserStatus.BUSY));
+			accelerators.put(new KeyCodeCombination(KeyCode.N, KeyCombination.CONTROL_DOWN, KeyCombination.SHIFT_DOWN),
+					() -> UserUtil.changeStatus(UserStatus.ONLINE));
+		}
 
 		// Add the option to open the settings scene with "Control"+"S", if being in
 		// chat scene

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

@@ -113,9 +113,13 @@ public final class Startup extends Application {
 		cacheMap.put(GroupMessage.class, new Cache<GroupMessage>());
 		cacheMap.put(MessageStatusChange.class, new Cache<MessageStatusChange>());
 		cacheMap.put(GroupMessageStatusChange.class, new Cache<GroupMessageStatusChange>());
+		final var originalStatus = localDB.getUser().getStatus();
 		try {
 			client.performHandshake(credentials, cacheMap);
 			if (client.isOnline()) {
+
+				// Restore the original status as the server automatically returns status ONLINE
+				client.getSender().setStatus(originalStatus);
 				loadChatScene();
 				client.initReceiver(localDB, cacheMap);
 				return true;
@@ -170,7 +174,8 @@ public final class Startup extends Application {
 	private static void loadChatScene() {
 
 		// Set client user in local database
-		localDB.setUser(client.getSender());
+		final var user = client.getSender();
+		localDB.setUser(user);
 
 		// Initialize chats in local database
 		try {
@@ -184,8 +189,13 @@ public final class Startup extends Application {
 
 		context.initWriteProxy();
 
-		if (client.isOnline()) context.getWriteProxy().flushCache();
-		else
+		if (client.isOnline()) {
+			context.getWriteProxy().flushCache();
+
+			// Inform the server that this user has a different user status than expected
+			if (!user.getStatus().equals(UserStatus.ONLINE)) client.send(new UserStatusChange(user));
+		} else
+
 			// Set all contacts to offline mode
 			localDB.getChats()
 				.stream()

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

@@ -6,9 +6,11 @@ import java.awt.TrayIcon.MessageType;
 import javafx.application.Platform;
 import javafx.stage.Stage;
 
+import envoy.client.event.OwnStatusChange;
 import envoy.client.helper.ShutdownHelper;
-import envoy.client.util.IconUtil;
+import envoy.client.util.*;
 import envoy.data.Message;
+import envoy.data.User.UserStatus;
 
 import dev.kske.eventbus.*;
 import dev.kske.eventbus.Event;
@@ -51,16 +53,32 @@ public final class StatusTrayIcon implements EventListener {
 		trayIcon.setImageAutoSize(true);
 		trayIcon.setToolTip("You are notified if you have unread messages.");
 
-		final PopupMenu popup = new PopupMenu();
+		final var popup = new PopupMenu();
 
-		final MenuItem exitMenuItem = new MenuItem("Exit");
-		exitMenuItem.addActionListener(evt -> ShutdownHelper.exit());
+		// Adding the exit menu item
+		final var exitMenuItem = new MenuItem("Exit");
+		exitMenuItem.addActionListener(evt -> ShutdownHelper.exit(true));
 		popup.add(exitMenuItem);
 
+		// Adding the logout menu item
+		final var logoutMenuItem = new MenuItem("Logout");
+		logoutMenuItem.addActionListener(evt -> { hide(); Platform.runLater(UserUtil::logout); });
+		popup.add(logoutMenuItem);
+
+		// Adding the status change items
+		final var statusSubMenu = new Menu("Change status");
+		for (final var status : UserStatus.values()) {
+			final var statusMenuItem = new MenuItem(status.toString().toLowerCase());
+			statusMenuItem.addActionListener(evt -> Platform.runLater(() -> UserUtil.changeStatus(status)));
+			statusSubMenu.add(statusMenuItem);
+		}
+		popup.add(statusSubMenu);
+
 		trayIcon.setPopupMenu(popup);
 
-		// Only display messages if the stage is not focused
-		stage.focusedProperty().addListener((ov, onHidden, onShown) -> displayMessages = !ov.getValue());
+		// Only display messages if the stage is not focused and the current user status
+		// is not BUSY (if BUSY, displayMessages will be false)
+		stage.focusedProperty().addListener((ov, wasFocused, isFocused) -> displayMessages = !displayMessages && wasFocused ? false : !isFocused);
 
 		// Show the window if the user clicks on the icon
 		trayIcon.addActionListener(evt -> Platform.runLater(() -> { stage.setIconified(false); stage.toFront(); stage.requestFocus(); }));
@@ -87,11 +105,13 @@ public final class StatusTrayIcon implements EventListener {
 	 */
 	public void hide() { SystemTray.getSystemTray().remove(trayIcon); }
 
+	@Event
+	private void onOwnStatusChange(OwnStatusChange statusChange) { displayMessages = !statusChange.get().equals(UserStatus.BUSY); }
+
 	@Event
 	private void onMessage(Message message) {
-		if (displayMessages) trayIcon.displayMessage(
-				message.hasAttachment() ? "New " + message.getAttachment().getType().toString().toLowerCase() + " message received" : "New message received",
-				message.getText(),
-				MessageType.INFO);
+		if (displayMessages) trayIcon
+			.displayMessage(message.hasAttachment() ? "New " + message.getAttachment().getType().toString().toLowerCase() + " message received"
+					: "New message received", message.getText(), MessageType.INFO);
 	}
 }

client/src/main/java/envoy/client/ui/chatscene/ChatSceneCommands.java

@@ -4,7 +4,8 @@ import java.util.Random;
 import java.util.function.*;
 import java.util.logging.Level;
 
-import javafx.scene.control.ListView;
+import javafx.scene.control.*;
+import javafx.scene.control.Alert.AlertType;
 import javafx.scene.control.skin.VirtualFlow;
 
 import envoy.client.data.Context;
@@ -12,8 +13,9 @@ import envoy.client.data.commands.*;
 import envoy.client.helper.ShutdownHelper;
 import envoy.client.ui.SceneContext.SceneInfo;
 import envoy.client.ui.controller.ChatScene;
-import envoy.client.util.MessageUtil;
+import envoy.client.util.*;
 import envoy.data.Message;
+import envoy.data.User.UserStatus;
 import envoy.util.EnvoyLog;
 
 /**
@@ -52,7 +54,7 @@ public final class ChatSceneCommands {
 			.build("dabr");
 
 		// Logout initialization
-		builder.setAction(text -> ShutdownHelper.logout()).setDescription("Logs you out.").buildNoArg("logout");
+		builder.setAction(text -> UserUtil.logout()).setDescription("Logs you out.").buildNoArg("logout");
 
 		// Exit initialization
 		builder.setAction(text -> ShutdownHelper.exit()).setNumberOfArguments(0).setDescription("Exits the program.").build("exit", false);
@@ -63,6 +65,17 @@ public final class ChatSceneCommands {
 			.setDescription("Opens the settings screen")
 			.buildNoArg("settings");
 
+		// Status change initialization
+		builder.setAction(text -> {
+			try {
+				UserUtil.changeStatus(Enum.valueOf(UserStatus.class, text.get(0).toUpperCase()));
+			} catch (final IllegalArgumentException e) {
+				final var alert = new Alert(AlertType.ERROR);
+				alert.setContentText("Please provide an existing status");
+				alert.showAndWait();
+			}
+		}).setDescription("Changes your status to the given status.").setNumberOfArguments(1).setDefaults("").build("status");
+
 		// Selection of a new message initialization
 		messageDependantAction("s",
 				m -> { messageList.getSelectionModel().clearSelection(); messageList.getSelectionModel().select(m); },

client/src/main/java/envoy/client/ui/control/ChatControl.java

@@ -2,9 +2,8 @@ package envoy.client.ui.control;
 
 import javafx.geometry.*;
 import javafx.scene.control.Label;
-import javafx.scene.image.*;
+import javafx.scene.image.Image;
 import javafx.scene.layout.*;
-import javafx.scene.shape.Rectangle;
 
 import envoy.client.data.*;
 import envoy.client.util.IconUtil;
@@ -23,6 +22,8 @@ public final class ChatControl extends HBox {
 			groupIcon = IconUtil.loadIconThemeSensitive("group_icon", 32);
 
 	/**
+	 * Creates a new {@code ChatControl}.
+	 *
 	 * @param chat the chat to display
 	 * @since Envoy Client v0.1-beta
 	 */
@@ -31,13 +32,7 @@ public final class ChatControl extends HBox {
 		setPadding(new Insets(0, 0, 3, 0));
 
 		// Profile picture
-		ImageView	contactProfilePic	= new ImageView(chat instanceof GroupChat ? groupIcon : userIcon);
-		final var clip = new Rectangle();
-		clip.setWidth(32);
-		clip.setHeight(32);
-		clip.setArcHeight(32);
-		clip.setArcWidth(32);
-		contactProfilePic.setClip(clip);
+		final var contactProfilePic = new ProfilePicImageView(chat instanceof GroupChat ? groupIcon : userIcon, 32);
 		getChildren().add(contactProfilePic);
 
 		// Spacing

client/src/main/java/envoy/client/ui/control/ContactControl.java

@@ -15,25 +15,37 @@ import envoy.data.*;
  */
 public final class ContactControl extends VBox {
 
+	private final Contact contact;
+
 	/**
 	 * @param contact the contact to display
 	 * @since Envoy Client v0.2-beta
 	 */
 	public ContactControl(Contact contact) {
+		this.contact = contact;
 
 		// Name label
 		final var nameLabel = new Label(contact.getName());
 		getChildren().add(nameLabel);
 
 		// Online status (user) or member count (group)
-		if (contact instanceof User) {
-			final var	status		= ((User) contact).getStatus().toString();
-			final var	statusLabel	= new Label(status);
-			statusLabel.getStyleClass().add(status.toLowerCase());
-			getChildren().add(statusLabel);
-		} else {
-			getChildren().add(new Label(contact.getContacts().size() + " members"));
-		}
+		getChildren().add(contact instanceof User ? new UserStatusLabel((User) contact) : new GroupSizeLabel((Group) contact));
+
 		getStyleClass().add("list-element");
 	}
+
+	/**
+	 * Replaces the info label of this {@code ContactControl} with an updated
+	 * version.
+	 * <p>
+	 * This method should be called when the status of the underlying user or the
+	 * size of the underlying group has changed.
+	 *
+	 * @since Envoy Client v0.3-beta
+	 * @apiNote will produce buggy results if contact control gets updated so that
+	 *          the info label is no longer on index 1.
+	 */
+	public void replaceInfoLabel() {
+		getChildren().set(1, contact instanceof User ? new UserStatusLabel((User) contact) : new GroupSizeLabel((Group) contact));
+	}
 }

client/src/main/java/envoy/client/ui/control/GroupSizeLabel.java

@@ -0,0 +1,20 @@
+package envoy.client.ui.control;
+
+import javafx.scene.control.Label;
+
+import envoy.data.Group;
+
+/**
+ * Displays the amount of members in a {@link Group}.
+ *
+ * @author Leon Hofmeister
+ * @since Envoy Client v0.3-beta
+ */
+public final class GroupSizeLabel extends Label {
+
+	/**
+	 * @param recipient the group whose members to show
+	 * @since Envoy Client v0.3-beta
+	 */
+	public GroupSizeLabel(Group recipient) { super(recipient.getContacts().size() + " members"); }
+}

client/src/main/java/envoy/client/ui/control/UserStatusLabel.java

@@ -0,0 +1,23 @@
+package envoy.client.ui.control;
+
+import javafx.scene.control.Label;
+
+import envoy.data.User;
+
+/**
+ * Displays the status of a {@link User}.
+ *
+ * @author Leon Hofmeister
+ * @since Envoy Client v0.3-beta
+ */
+public final class UserStatusLabel extends Label {
+
+	/**
+	 * @param user the user whose status to display
+	 * @since Envoy Client v0.3-beta
+	 */
+	public UserStatusLabel(User user) {
+		super(user.getStatus().toString());
+		getStyleClass().add(user.getStatus().toString().toLowerCase());
+	}
+}

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

@@ -13,6 +13,7 @@ import javafx.application.Platform;
 import javafx.collections.ObservableList;
 import javafx.collections.transformation.FilteredList;
 import javafx.fxml.*;
+import javafx.geometry.Pos;
 import javafx.scene.control.*;
 import javafx.scene.control.Alert.AlertType;
 import javafx.scene.image.*;
@@ -29,7 +30,7 @@ import envoy.client.event.*;
 import envoy.client.net.*;
 import envoy.client.ui.*;
 import envoy.client.ui.chatscene.*;
-import envoy.client.ui.control.ChatControl;
+import envoy.client.ui.control.*;
 import envoy.client.ui.listcell.*;
 import envoy.client.util.*;
 import envoy.data.*;
@@ -51,12 +52,6 @@ import dev.kske.eventbus.Event;
  */
 public final class ChatScene implements EventListener, Restorable {
 
-	@FXML
-	private GridPane scene;
-
-	@FXML
-	private Label contactLabel;
-
 	@FXML
 	private ListView<Message> messageList;
 
@@ -84,33 +79,33 @@ public final class ChatScene implements EventListener, Restorable {
 	@FXML
 	private Button newContactButton;
 
-	@FXML
-	private TextArea messageTextArea;
-
 	@FXML
 	private Label remainingChars;
 
 	@FXML
 	private Label infoLabel;
 
-	@FXML
-	private MenuItem deleteContactMenuItem;
-
-	@FXML
-	private ImageView attachmentView;
-
 	@FXML
 	private Label topBarContactLabel;
 
 	@FXML
 	private Label topBarStatusLabel;
 
+	@FXML
+	private MenuItem deleteContactMenuItem;
+
+	@FXML
+	private ImageView attachmentView;
+
 	@FXML
 	private ImageView clientProfilePic;
 
 	@FXML
 	private ImageView recipientProfilePic;
 
+	@FXML
+	private TextArea messageTextArea;
+
 	@FXML
 	private TextArea contactSearch;
 
@@ -129,6 +124,12 @@ public final class ChatScene implements EventListener, Restorable {
 	@FXML
 	private HBox contactSpecificOnlineOperations;
 
+	@FXML
+	private HBox ownContactControl;
+
+	@FXML
+	private Region spaceBetweenUserAndSettingsButton;
+
 	private Chat				currentChat;
 	private FilteredList<Chat>	chats;
 	private boolean				recording;
@@ -188,10 +189,15 @@ public final class ChatScene implements EventListener, Restorable {
 		clientProfilePic.setClip(clip);
 
 		chatList.setItems(chats = new FilteredList<>(localDB.getChats()));
-		contactLabel.setText(localDB.getUser().getName());
+
+		// Set the design of the box in the upper-left corner
+		settingsButton.setAlignment(Pos.BOTTOM_RIGHT);
+		HBox.setHgrow(spaceBetweenUserAndSettingsButton, Priority.ALWAYS);
+		generateOwnStatusControl();
 
 		Platform.runLater(() -> {
 			final var online = client.isOnline();
+
 			// no check will be performed in case it has already been disabled - a negative
 			// GroupCreationResult might have been returned
 			if (!newGroupButton.isDisabled()) newGroupButton.setDisable(!online);
@@ -251,8 +257,19 @@ public final class ChatScene implements EventListener, Restorable {
 			.ifPresent(msg -> Platform.runLater(messageList::refresh));
 	}
 
-	@Event(eventType = UserStatusChange.class)
-	private void onUserStatusChange() { Platform.runLater(chatList::refresh); }
+	@Event
+	private void onUserStatusChange(UserStatusChange statusChange) {
+		Platform.runLater(() -> {
+			chatList.refresh();
+
+			// Replacing the display in the top bar
+			if (currentChat != null && currentChat.getRecipient().getID() == statusChange.getID()) {
+				topBarStatusLabel.getStyleClass().clear();
+				topBarStatusLabel.setText(statusChange.get().toString());
+				topBarStatusLabel.getStyleClass().add(statusChange.get().toString().toLowerCase());
+			}
+		});
+	}
 
 	@Event
 	private void onContactOperation(ContactOperation operation) {
@@ -297,6 +314,7 @@ public final class ChatScene implements EventListener, Restorable {
 		chatList.setCellFactory(new ListCellFactory<>(ChatControl::new));
 		messageList.setCellFactory(MessageListCell::new);
 		// TODO: cache image
+		if (currentChat != null)
 			if (currentChat.getRecipient() instanceof User) recipientProfilePic.setImage(IconUtil.loadIconThemeSensitive("user_icon", 43));
 			else recipientProfilePic.setImage(IconUtil.loadIconThemeSensitive("group_icon", 43));
 	}
@@ -359,6 +377,7 @@ public final class ChatScene implements EventListener, Restorable {
 				recipientProfilePic.setImage(IconUtil.loadIconThemeSensitive("user_icon", 43));
 			} else {
 				topBarStatusLabel.setText(currentChat.getRecipient().getContacts().size() + " members");
+				topBarStatusLabel.getStyleClass().clear();
 				recipientProfilePic.setImage(IconUtil.loadIconThemeSensitive("group_icon", 43));
 			}
 			final var clip = new Rectangle();
@@ -699,6 +718,21 @@ public final class ChatScene implements EventListener, Restorable {
 		attachmentView.setVisible(visible);
 	}
 
+	@Event(eventType = OwnStatusChange.class, priority = 50)
+	private void generateOwnStatusControl() {
+
+		// Update the own user status if present
+		if (ownContactControl.getChildren().get(0) instanceof ContactControl)
+			((ContactControl) ownContactControl.getChildren().get(0)).replaceInfoLabel();
+		else {
+
+			// Else prepend it to the HBox children
+			final var ownUserControl = new ContactControl(localDB.getUser());
+			ownUserControl.setAlignment(Pos.CENTER_LEFT);
+			ownContactControl.getChildren().add(0, ownUserControl);
+		}
+	}
+
 	// Context menu actions
 
 	@FXML

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

@@ -5,8 +5,6 @@ import javafx.scene.control.*;
 import javafx.scene.layout.HBox;
 import javafx.stage.DirectoryChooser;
 
-import envoy.client.data.Context;
-
 /**
  * Displays options for downloading {@link envoy.data.Attachment}s.
  *
@@ -47,7 +45,7 @@ public final class DownloadSettingsPane extends SettingsPane {
 			final var directoryChooser = new DirectoryChooser();
 			directoryChooser.setTitle("Select the directory where attachments should be saved to");
 			directoryChooser.setInitialDirectory(settings.getDownloadLocation());
-			final var selectedDirectory = directoryChooser.showDialog(Context.getInstance().getSceneContext().getStage());
+			final var selectedDirectory = directoryChooser.showDialog(context.getSceneContext().getStage());
 
 			if (selectedDirectory != null) {
 				currentPath.setText(selectedDirectory.getAbsolutePath());

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

@@ -4,8 +4,8 @@ import javafx.scene.control.*;
 
 import envoy.client.data.SettingsItem;
 import envoy.client.event.ThemeChangeEvent;
-import envoy.client.helper.ShutdownHelper;
 import envoy.client.ui.StatusTrayIcon;
+import envoy.client.util.UserUtil;
 import envoy.data.User.UserStatus;
 
 import dev.kske.eventbus.EventBus;
@@ -57,14 +57,13 @@ public final class GeneralSettingsPane extends SettingsPane {
 
 		final var statusComboBox = new ComboBox<UserStatus>();
 		statusComboBox.getItems().setAll(UserStatus.values());
-		statusComboBox.setValue(UserStatus.ONLINE);
+		statusComboBox.setValue(context.getLocalDB().getUser().getStatus());
 		statusComboBox.setTooltip(new Tooltip("Change your current status"));
-		// TODO add action when value is changed
-		statusComboBox.setOnAction(e -> {});
+		statusComboBox.setOnAction(e -> UserUtil.changeStatus(statusComboBox.getValue()));
 		getChildren().add(statusComboBox);
 
 		final var logoutButton = new Button("Logout");
-		logoutButton.setOnAction(e -> ShutdownHelper.logout());
+		logoutButton.setOnAction(e -> UserUtil.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);

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

@@ -5,7 +5,6 @@ import javafx.scene.control.*;
 import javafx.scene.layout.*;
 import javafx.scene.paint.Color;
 
-import envoy.client.data.Context;
 import envoy.client.net.Client;
 
 /**
@@ -20,7 +19,7 @@ import envoy.client.net.Client;
  */
 public abstract class OnlineOnlySettingsPane extends SettingsPane {
 
-	protected final Client client = Context.getInstance().getClient();
+	protected final Client client = context.getClient();
 
 	private final Tooltip beOnlineReminder = new Tooltip("You need to be online to modify your account.");
 

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

@@ -2,7 +2,7 @@ package envoy.client.ui.settings;
 
 import javafx.scene.layout.VBox;
 
-import envoy.client.data.Settings;
+import envoy.client.data.*;
 
 /**
  * @author Kai S. K. Engelbart
@@ -13,6 +13,7 @@ public abstract class SettingsPane extends VBox {
 	protected String title;
 
 	protected static final Settings	settings	= Settings.getInstance();
+	protected static final Context	context		= Context.getInstance();
 
 	protected SettingsPane(String title) { this.title = title; }
 

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

@@ -14,7 +14,6 @@ import javafx.scene.input.InputEvent;
 import javafx.scene.layout.HBox;
 import javafx.stage.FileChooser;
 
-import envoy.client.data.Context;
 import envoy.client.ui.control.ProfilePicImageView;
 import envoy.client.util.IconUtil;
 import envoy.event.*;
@@ -66,7 +65,7 @@ public final class UserSettingsPane extends OnlineOnlySettingsPane {
 			pictureChooser.setInitialDirectory(new File(System.getProperty("user.home")));
 			pictureChooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("Pictures", "*.png", "*.jpg", "*.bmp", "*.gif"));
 
-			final var file = pictureChooser.showOpenDialog(Context.getInstance().getSceneContext().getStage());
+			final var file = pictureChooser.showOpenDialog(context.getSceneContext().getStage());
 
 			if (file != null) {
 

client/src/main/java/envoy/client/util/UserUtil.java

@@ -0,0 +1,64 @@
+package envoy.client.util;
+
+import java.util.logging.Level;
+
+import javafx.scene.control.Alert;
+import javafx.scene.control.Alert.AlertType;
+
+import envoy.client.data.Context;
+import envoy.client.event.*;
+import envoy.client.helper.*;
+import envoy.client.ui.SceneContext.SceneInfo;
+import envoy.data.User.UserStatus;
+import envoy.event.UserStatusChange;
+import envoy.util.EnvoyLog;
+
+import dev.kske.eventbus.EventBus;
+
+/**
+ * Contains methods that change something about the currently logged in user.
+ *
+ * @author Leon Hofmeister
+ * @since Envoy Client v0.3-beta
+ */
+public final class UserUtil {
+
+	private UserUtil() {}
+
+	/**
+	 * Logs the current user out and reopens
+	 * {@link envoy.client.ui.controller.LoginScene}.
+	 *
+	 * @since Envoy Client v0.2-beta
+	 */
+	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, () -> {
+			EnvoyLog.getLogger(ShutdownHelper.class).log(Level.INFO, "A logout was requested");
+			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
+			EventBus.getInstance().dispatch(new Logout());
+			Context.getInstance().getSceneContext().load(SceneInfo.LOGIN_SCENE);
+		});
+	}
+
+	/**
+	 * Notifies the application that the status of the currently logged in user has
+	 * changed.
+	 *
+	 * @param newStatus the new status
+	 * @since Envoy Client v0.3-beta
+	 */
+	public static void changeStatus(UserStatus newStatus) {
+
+		// Sending the already active status is a valid action
+		if (newStatus.equals(Context.getInstance().getLocalDB().getUser().getStatus())) return;
+		else {
+			EventBus.getInstance().dispatch(new OwnStatusChange(newStatus));
+			if (Context.getInstance().getClient().isOnline())
+				Context.getInstance().getClient().send(new UserStatusChange(Context.getInstance().getLocalDB().getUser().getID(), newStatus));
+		}
+	}
+}

client/src/main/resources/css/base.css

@@ -6,7 +6,7 @@
 	-fx-background-radius: 15.0px;
 }
 
-.list-cell:selected, .menu-item:hover {
+.list-cell:selected, .menu-item:hover, .combo-box-popup .list-view .list-cell:selected {
     -fx-background-color: #454c4f;
 }
 

client/src/main/resources/css/dark.css

@@ -18,7 +18,7 @@
 	-fx-background-color: lightgray;
 }
 
-#message-list, .text-field, .password-field, .tooltip, .pane, .pane .content, .vbox, .titled-pane > .title, .titled-pane > *.content, .context-menu, .menu-item, #quick-select-list {
+#message-list, .text-field, .password-field, .tooltip, .pane, .pane .content, .vbox, .titled-pane > .title, .titled-pane > *.content, .context-menu, .menu-item, .combo-box-popup .list-view .list-cell, #quick-select-list {
 	-fx-background-color: #222222;
 }
 

client/src/main/resources/fxml/ChatScene.fxml

@@ -22,9 +22,10 @@
 <?import javafx.scene.text.Font?>
 <?import javafx.stage.Screen?>
 
-<GridPane fx:id="scene" maxHeight="-Infinity"
-	maxWidth="-Infinity" minHeight="400.0" minWidth="500.0"
-	prefHeight="${screen.visualBounds.height}" prefWidth="${screen.visualBounds.width}"
+<GridPane maxHeight="-Infinity" maxWidth="-Infinity"
+	minHeight="400.0" minWidth="500.0"
+	prefHeight="${screen.visualBounds.height}"
+	prefWidth="${screen.visualBounds.width}"
 	xmlns="http://javafx.com/javafx/11.0.1"
 	xmlns:fx="http://javafx.com/fxml/1"
 	fx:controller="envoy.client.ui.controller.ChatScene">
@@ -160,44 +161,25 @@
 					fitHeight="43.0" fitWidth="43.0" pickOnBounds="true"
 					preserveRatio="true">
 					<HBox.margin>
-						<Insets left="15.0" top="5.0" />
+						<Insets left="15.0" top="5.0" right="10.0" />
 					</HBox.margin>
 				</ImageView>
-				<Label id="transparent-background" fx:id="contactLabel"
-					prefHeight="27.0" prefWidth="134.0">
-					<padding>
-						<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
-					</padding>
-					<font>
-						<Font size="18.0" />
-					</font>
-					<HBox.margin>
-						<Insets left="10.0" top="5.0" />
-					</HBox.margin>
-				</Label>
-				<Region id="transparent-background" prefHeight="77.0"
-					prefWidth="115.0" />
-				<VBox id="transparent-background" alignment="CENTER_RIGHT"
-					prefHeight="200.0" prefWidth="100.0" spacing="5.0">
+				<HBox id="transparent-background" fx:id="ownContactControl">
 					<children>
-						<Button fx:id="settingsButton" mnemonicParsing="true"
+						<Region id="transparent-background" prefWidth="120"
+							fx:id="spaceBetweenUserAndSettingsButton" />
+						<Button fx:id="settingsButton" mnemonicParsing="false"
 							onAction="#settingsButtonClicked" prefHeight="30.0"
-							prefWidth="30.0" text="">
+							prefWidth="30.0" text="" alignment="CENTER">
 							<padding>
 								<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
 							</padding>
-							<VBox.margin>
-								<Insets />
-							</VBox.margin>
+							<HBox.margin>
+								<Insets bottom="35.0" left="5.0" top="35.0"/>
+							</HBox.margin>
 						</Button>
 					</children>
-					<HBox.margin>
-						<Insets right="10.0" />
-					</HBox.margin>
-					<opaqueInsets>
-						<Insets />
-					</opaqueInsets>
-				</VBox>
+				</HBox>
 			</children>
 			<GridPane.margin>
 				<Insets bottom="1.0" right="1.0" />

server/src/main/java/envoy/server/net/ConnectionManager.java

@@ -22,14 +22,14 @@ public final class ConnectionManager implements ISocketIdListener {
 	 *
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
-	private Set<Long> pendingSockets = new HashSet<>();
+	private final Set<Long> pendingSockets = new HashSet<>();
 
 	/**
 	 * Contains all socket IDs that have acquired a user ID as keys to these IDs.
 	 *
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
-	private Map<Long, Long> sockets = new HashMap<>();
+	private final Map<Long, Long> sockets = new HashMap<>();
 
 	private static ConnectionManager connectionManager = new ConnectionManager();
 
@@ -44,11 +44,11 @@ public final class ConnectionManager implements ISocketIdListener {
 	@Override
 	public void socketCancelled(long socketID) {
 		if (!pendingSockets.remove(socketID)) {
+
 			// Notify contacts of this users offline-going
-			envoy.server.data.User user = PersistenceManager.getInstance().getUserByID(getUserIDBySocketID(socketID));
-			user.setStatus(UserStatus.OFFLINE);
+			final envoy.server.data.User user = PersistenceManager.getInstance().getUserByID(getUserIDBySocketID(socketID));
 			user.setLastSeen(Instant.now());
-			UserStatusChangeProcessor.updateUserStatus(user);
+			UserStatusChangeProcessor.updateUserStatus(user, UserStatus.OFFLINE);
 
 			// Remove the socket
 			sockets.entrySet().removeIf(e -> e.getValue() == socketID);

server/src/main/java/envoy/server/processors/LoginCredentialProcessor.java

@@ -46,8 +46,7 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 
 		// Acquire a user object (or reject the handshake if that's impossible)
 		User user = null;
-		if (!credentials.isRegistration()) {
-			try {
+		if (!credentials.isRegistration()) try {
 			user = persistenceManager.getUserByName(credentials.getIdentifier());
 
 			// Check if the user is already online
@@ -67,7 +66,7 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 					writeProxy.write(socketID, new HandshakeRejection(INVALID_TOKEN));
 					return;
 				}
-				} else {
+			} else
 
 				// Check the password hash
 				if (!PasswordUtil.validate(credentials.getPassword(), user.getPasswordHash())) {
@@ -75,13 +74,12 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 					writeProxy.write(socketID, new HandshakeRejection(WRONG_PASSWORD_OR_USER));
 					return;
 				}
-				}
-			} catch (NoResultException e) {
+		} catch (final NoResultException e) {
 			logger.info("The requested user does not exist.");
 			writeProxy.write(socketID, new HandshakeRejection(WRONG_PASSWORD_OR_USER));
 			return;
 		}
-		} else {
+		else {
 
 			// Validate user name
 			if (!Bounds.isValidContactName(credentials.getIdentifier())) {
@@ -98,7 +96,7 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 				logger.info("The requested user already exists.");
 				writeProxy.write(socketID, new HandshakeRejection(USERNAME_TAKEN));
 				return;
-			} catch (NoResultException e) {
+			} catch (final NoResultException e) {
 				// Creation of a new user
 				user = new User();
 				user.setName(credentials.getIdentifier());
@@ -115,18 +113,17 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 		connectionManager.registerUser(user.getID(), socketID);
 
 		// Change status and notify contacts about it
-		user.setStatus(ONLINE);
-		UserStatusChangeProcessor.updateUserStatus(user);
+		UserStatusChangeProcessor.updateUserStatus(user, ONLINE);
 
 		// Process token request
 		if (credentials.requestToken()) {
 			String token;
 
-			if (user.getAuthToken() != null && user.getAuthTokenExpiration().isAfter(Instant.now())) {
+			if (user.getAuthToken() != null && user.getAuthTokenExpiration().isAfter(Instant.now()))
 
 				// Reuse existing token and delay expiration date
 				token = user.getAuthToken();
-			} else {
+			else {
 
 				// Generate new token
 				token = AuthTokenGenerator.nextToken();
@@ -141,13 +138,13 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 		pendingMessages.removeIf(GroupMessage.class::isInstance);
 		logger.fine("Sending " + pendingMessages.size() + " pending messages to " + user + "...");
 
-		for (var msg : pendingMessages) {
+		for (final var msg : pendingMessages) {
 			final var msgCommon = msg.toCommon();
-			if (msg.getCreationDate().isAfter(credentials.getLastSync())) {
+			if (msg.getCreationDate().isAfter(credentials.getLastSync()))
 
 				// Sync without side effects
 				writeProxy.write(socketID, msgCommon);
-			} else if (msg.getStatus() == SENT) {
+			else if (msg.getStatus() == SENT) {
 
 				// Send the message
 				writeProxy.write(socketID, msgCommon);
@@ -162,10 +159,10 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 			} else writeProxy.write(socketID, new MessageStatusChange(msgCommon));
 		}
 
-		List<GroupMessage> pendingGroupMessages = PersistenceManager.getInstance().getPendingGroupMessages(user, credentials.getLastSync());
+		final List<GroupMessage> pendingGroupMessages = PersistenceManager.getInstance().getPendingGroupMessages(user, credentials.getLastSync());
 		logger.fine("Sending " + pendingGroupMessages.size() + " pending group messages to " + user + "...");
 
-		for (var gmsg : pendingGroupMessages) {
+		for (final var gmsg : pendingGroupMessages) {
 			final var gmsgCommon = gmsg.toCommon();
 
 			// Deliver the message to the user if he hasn't received it yet
@@ -189,20 +186,18 @@ public final class LoginCredentialProcessor implements ObjectProcessor<LoginCred
 					}
 
 					PersistenceManager.getInstance().updateMessage(gmsg);
-				} else {
+				} else
 
 					// Just send the message without updating if it was received in the past
 					writeProxy.write(socketID, gmsgCommon);
-				}
 			} else {
 
 				// Sending group message status changes
 				if (gmsg.getStatus() == SENT && gmsg.getLastStatusChangeDate().isAfter(gmsg.getCreationDate())
-						|| gmsg.getStatus() == RECEIVED && gmsg.getLastStatusChangeDate().isAfter(gmsg.getReceivedDate())) {
+						|| gmsg.getStatus() == RECEIVED && gmsg.getLastStatusChangeDate().isAfter(gmsg.getReceivedDate()))
 					gmsg.getMemberMessageStatus()
 						.forEach((memberID, memberStatus) -> writeProxy.write(socketID,
 								new GroupMessageStatusChange(gmsg.getID(), memberStatus, gmsg.getLastStatusChangeDate(), memberID)));
-				}
 
 				// Deliver just a status change instead of the whole message
 				if (gmsg.getStatus() == RECEIVED && user.getLastSeen().isBefore(gmsg.getReceivedDate())

server/src/main/java/envoy/server/processors/UserStatusChangeProcessor.java

@@ -28,18 +28,20 @@ public final class UserStatusChangeProcessor implements ObjectProcessor<UserStat
 			logger.warning("Received an unnecessary UserStatusChange");
 			return;
 		}
-		updateUserStatus(input);
+		updateUserStatus(persistenceManager.getUserByID(input.getID()), input.get());
 	}
 
 	/**
 	 * Sets the {@link UserStatus} for a given user. Both offline contacts and
 	 * currently online contacts are notified.
 	 *
-	 * @param user the {@link UserStatusChange} that signals the change
+	 * @param user      the user whose status has changed
+	 * @param newStatus the new status of that user
 	 * @since Envoy Server Standalone v0.1-alpha
 	 */
 
-	public static void updateUserStatus(User user) {
+	public static void updateUserStatus(User user, UserStatus newStatus) {
+		user.setStatus(newStatus);
 
 		// Handling for newly logged in clients
 		persistenceManager.updateContact(user);
@@ -48,12 +50,6 @@ public final class UserStatusChangeProcessor implements ObjectProcessor<UserStat
 		writeProxy.writeToOnlineContacts(user.getContacts(), new UserStatusChange(user.getID(), user.getStatus()));
 	}
 
-	/**
-	 * @param evt the {@link UserStatusChange}
-	 * @since Envoy Server Standalone v0.1-alpha
-	 */
-	public static void updateUserStatus(UserStatusChange evt) { updateUserStatus(persistenceManager.getUserByID(evt.getID())); }
-
 	/**
 	 * This method is only called by the LoginCredentialProcessor because every
 	 * user needs to login (open a socket) before changing his status.