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

@@ -235,7 +235,7 @@ public final class LocalDB implements EventListener {
 
 	@Event(priority = 150)
 	private void onUserStatusChange(UserStatusChange evt) {
-		this.getChat(evt.getID()).map(Chat::getRecipient).map(User.class::cast).ifPresent(u -> u.setStatus(evt.get()));
+		getChat(evt.getID()).map(Chat::getRecipient).map(User.class::cast).ifPresent(u -> u.setStatus(evt.get()));
 	}
 
 	@Event(priority = 150)

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

@@ -8,6 +8,7 @@ import javafx.scene.control.Alert.AlertType;
 import envoy.client.data.*;
 import envoy.client.event.*;
 import envoy.client.ui.SceneContext.SceneInfo;
+import envoy.client.ui.StatusTrayIcon;
 import envoy.util.EnvoyLog;
 
 import dev.kske.eventbus.EventBus;
@@ -24,12 +25,12 @@ public final class ShutdownHelper {
 
 	/**
 	 * Exits Envoy or minimizes it, depending on the current state of
-	 * {@link Settings#isHideOnClose()}.
+	 * {@link Settings#isHideOnClose()} and {@link StatusTrayIcon#isSupported()}.
 	 *
 	 * @since Envoy Client v0.2-beta
 	 */
 	public static void exit() {
-		if (Settings.getInstance().isHideOnClose()) Context.getInstance().getStage().setIconified(true);
+		if (Settings.getInstance().isHideOnClose() && StatusTrayIcon.isSupported()) Context.getInstance().getStage().setIconified(true);
 		else {
 			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
 			System.exit(0);

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

@@ -105,17 +105,7 @@ public final class SceneContext implements EventListener {
 			sceneStack.push(scene);
 			stage.setScene(scene);
 
-			// 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" if not in login scene
-			if (sceneInfo != SceneInfo.LOGIN_SCENE) 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));
+			supplyKeyboardShortcuts(sceneInfo, 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
@@ -130,6 +120,22 @@ public final class SceneContext implements EventListener {
 		}
 	}
 
+	private void supplyKeyboardShortcuts(SceneInfo sceneInfo, final Scene scene) {
+		final var accelerators = scene.getAccelerators();
+
+		// 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);
+
+		// Add the option to open the settings scene with "Control"+"S", if being in
+		// chat scene
+		if (sceneInfo == SceneInfo.CHAT_SCENE)
+			accelerators.put(new KeyCodeCombination(KeyCode.S, KeyCombination.CONTROL_DOWN), () -> load(SceneInfo.SETTINGS_SCENE));
+	}
+
 	/**
 	 * Removes the current scene and displays the previous one.
 	 *

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

@@ -205,10 +205,11 @@ public final class Startup extends Application {
 		context.getSceneContext().load(SceneContext.SceneInfo.CHAT_SCENE);
 		stage.centerOnScreen();
 
-		if (StatusTrayIcon.isSupported()) {
-
 		// Exit or minimize the stage when a close request occurs
-			stage.setOnCloseRequest(e -> { ShutdownHelper.exit(); if (Settings.getInstance().isHideOnClose()) e.consume(); });
+		stage.setOnCloseRequest(
+				e -> { ShutdownHelper.exit(); if (Settings.getInstance().isHideOnClose() && StatusTrayIcon.isSupported()) e.consume(); });
+
+		if (StatusTrayIcon.isSupported()) {
 
 			// Initialize status tray icon
 			final var trayIcon = new StatusTrayIcon(stage);

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

@@ -5,6 +5,7 @@ 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.data.User.UserStatus;
 
 import dev.kske.eventbus.EventBus;
@@ -22,13 +23,16 @@ public final class GeneralSettingsPane extends SettingsPane {
 		super("General");
 		setSpacing(10);
 
-		// TODO: Support other value types
 		final var settingsItems = settings.getItems();
+
+		// Add hide on close if supported
+		if (StatusTrayIcon.isSupported()) {
 			final var	hideOnCloseCheckbox	= new SettingsCheckbox((SettingsItem<Boolean>) settingsItems.get("hideOnClose"));
 			final var	hideOnCloseTooltip	= new Tooltip("If selected, Envoy will still be present in the task bar when closed.");
 			hideOnCloseTooltip.setWrapText(true);
 			hideOnCloseCheckbox.setTooltip(hideOnCloseTooltip);
 			getChildren().add(hideOnCloseCheckbox);
+		}
 
 		final var	enterToSendCheckbox	= new SettingsCheckbox((SettingsItem<Boolean>) settingsItems.get("enterToSend"));
 		final var	enterToSendTooltip	= new Tooltip(