hard code default quickaccess service

src/main/java/org/cryptomator/common/settings/Settings.java

@@ -43,7 +43,12 @@ public class Settings {
 	static final boolean DEFAULT_DEBUG_MODE = false;
 	static final UiTheme DEFAULT_THEME = UiTheme.LIGHT;
 	@Deprecated // to be changed to "whatever is available" eventually
-	static final String DEFAULT_KEYCHAIN_PROVIDER = SystemUtils.IS_OS_WINDOWS ? "org.cryptomator.windows.keychain.WindowsProtectedKeychainAccess" : SystemUtils.IS_OS_MAC ? "org.cryptomator.macos.keychain.MacSystemKeychainAccess" : "org.cryptomator.linux.keychain.SecretServiceKeychainAccess";
+	static final String DEFAULT_KEYCHAIN_PROVIDER = SystemUtils.IS_OS_WINDOWS ? "org.cryptomator.windows.keychain.WindowsProtectedKeychainAccess" : //
+			SystemUtils.IS_OS_MAC ? "org.cryptomator.macos.keychain.MacSystemKeychainAccess" : //
+					"org.cryptomator.linux.keychain.SecretServiceKeychainAccess";
+	static final String DEFAULT_QUICKACCESS_SERVICE = SystemUtils.IS_OS_WINDOWS ? "org.cryptomator.windows.quickaccess.ExplorerQuickAccessService" : //
+			SystemUtils.IS_OS_LINUX ? "org.cryptomator.linux.quickaccess.NautilusBookmarks" : null;
+
 	static final String DEFAULT_USER_INTERFACE_ORIENTATION = NodeOrientation.LEFT_TO_RIGHT.name();
 	static final boolean DEFAULT_SHOW_MINIMIZE_BUTTON = false;
 	public static final Instant DEFAULT_TIMESTAMP = Instant.parse("2000-01-01T00:00:00Z");

src/main/java/org/cryptomator/common/settings/SettingsJson.java

@@ -90,5 +90,5 @@ class SettingsJson {
 	boolean useQuickAccess = Settings.DEFAULT_USE_QUICKACCESS;
 
 	@JsonProperty("quickAccessService")
-	String quickAccessService;
+	String quickAccessService = Settings.DEFAULT_QUICKACCESS_SERVICE;
 }

src/main/java/org/cryptomator/common/settings/SettingsProvider.java

@@ -47,13 +47,11 @@ public class SettingsProvider implements Supplier<Settings> {
 	private final Supplier<Settings> settings = Suppliers.memoize(this::load);
 	private final Environment env;
 	private final ScheduledExecutorService scheduler;
-	private final Optional<QuickAccessService> quickAccessService;
 
 	@Inject
-	public SettingsProvider(Environment env, ScheduledExecutorService scheduler, List<QuickAccessService> quickAccessServices) {
+	public SettingsProvider(Environment env, ScheduledExecutorService scheduler) {
 		this.env = env;
 		this.scheduler = scheduler;
-		this.quickAccessService = quickAccessServices.stream().findFirst();
 	}
 
 	@Override
@@ -66,9 +64,6 @@ public class SettingsProvider implements Supplier<Settings> {
 				.flatMap(this::tryLoad) //
 				.findFirst() //
 				.orElseGet(() -> Settings.create(env));
-		if (settings.quickAccessService.getValue() == null) {
-			quickAccessService.ifPresent(s -> settings.quickAccessService.setValue(s.getClass().getName()));
-		}
 		settings.setSaveCmd(this::scheduleSave);
 		return settings;
 	}