Make native notifications setting tri-state

Telegram/SourceFiles/core/core_settings.cpp

@@ -60,7 +60,7 @@ QByteArray Settings::serialize() const {
 			<< qint32(_desktopNotify ? 1 : 0)
 			<< qint32(_flashBounceNotify ? 1 : 0)
 			<< static_cast<qint32>(_notifyView)
-			<< qint32(_nativeNotifications ? 1 : 0)
+			<< qint32(_nativeNotifications ? (*_nativeNotifications ? 1 : 2) : 0)
 			<< qint32(_notificationsCount)
 			<< static_cast<qint32>(_notificationsCorner)
 			<< qint32(_autoLock)
@@ -141,7 +141,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	qint32 desktopNotify = _desktopNotify ? 1 : 0;
 	qint32 flashBounceNotify = _flashBounceNotify ? 1 : 0;
 	qint32 notifyView = static_cast<qint32>(_notifyView);
-	qint32 nativeNotifications = _nativeNotifications ? 1 : 0;
+	qint32 nativeNotifications = _nativeNotifications ? (*_nativeNotifications ? 1 : 2) : 0;
 	qint32 notificationsCount = _notificationsCount;
 	qint32 notificationsCorner = static_cast<qint32>(_notificationsCorner);
 	qint32 autoLock = _autoLock;
@@ -313,7 +313,12 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	case dbinvShowName:
 	case dbinvShowPreview: _notifyView = uncheckedNotifyView; break;
 	}
-	_nativeNotifications = (nativeNotifications == 1);
+	switch (nativeNotifications) {
+	case 0: _nativeNotifications = std::nullopt; break;
+	case 1: _nativeNotifications = true; break;
+	case 2: _nativeNotifications = false; break;
+	default: break;
+	}
 	_notificationsCount = (notificationsCount > 0) ? notificationsCount : 3;
 	const auto uncheckedNotificationsCorner = static_cast<ScreenCorner>(notificationsCorner);
 	switch (uncheckedNotificationsCorner) {
@@ -479,7 +484,7 @@ void Settings::resetOnLastLogout() {
 	_desktopNotify = true;
 	_flashBounceNotify = true;
 	_notifyView = dbinvShowPreview;
-	//_nativeNotifications = false;
+	//_nativeNotifications = std::nullopt;
 	//_notificationsCount = 3;
 	//_notificationsCorner = ScreenCorner::BottomRight;
 	_includeMutedCounter = true;

Telegram/SourceFiles/core/core_settings.h

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/themes/window_themes_embedded.h"
 #include "window/window_controls_layout.h"
 #include "ui/chat/attach/attach_send_files_way.h"
+#include "platform/platform_notifications_manager.h"
 
 enum class RectPart;
 
@@ -135,10 +136,12 @@ public:
 		_notifyView = value;
 	}
 	[[nodiscard]] bool nativeNotifications() const {
-		return _nativeNotifications;
+		return _nativeNotifications.value_or(Platform::Notifications::ByDefault());
 	}
 	void setNativeNotifications(bool value) {
-		_nativeNotifications = value;
+		_nativeNotifications = (value == Platform::Notifications::ByDefault())
+			? std::nullopt
+			: std::make_optional(value);
 	}
 	[[nodiscard]] int notificationsCount() const {
 		return _notificationsCount;
@@ -529,7 +532,7 @@ private:
 	bool _desktopNotify = true;
 	bool _flashBounceNotify = true;
 	DBINotifyView _notifyView = dbinvShowPreview;
-	bool _nativeNotifications = false;
+	std::optional<bool> _nativeNotifications;
 	int _notificationsCount = 3;
 	ScreenCorner _notificationsCorner = ScreenCorner::BottomRight;
 	bool _includeMutedCounter = true;

Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp

@@ -698,7 +698,11 @@ bool Supported() {
 bool Enforced() {
 	// Wayland doesn't support positioning
 	// and custom notifications don't work here
-	return IsQualifiedDaemon() || IsWayland();
+	return IsWayland();
+}
+
+bool ByDefault() {
+	return IsQualifiedDaemon();
 }
 
 void Create(Window::Notifications::System *system) {

Telegram/SourceFiles/platform/linux/notifications_manager_linux_dummy.cpp

@@ -35,6 +35,10 @@ bool Enforced() {
 	return IsWayland();
 }
 
+bool ByDefault() {
+	return false;
+}
+
 void Create(Window::Notifications::System *system) {
 	if (Enforced()) {
 		using DummyManager = Window::Notifications::DummyManager;

Telegram/SourceFiles/platform/mac/notifications_manager_mac.mm

@@ -167,6 +167,10 @@ bool Enforced() {
 	return Supported();
 }
 
+bool ByDefault() {
+	return Supported();
+}
+
 void Create(Window::Notifications::System *system) {
 	if (Supported()) {
 		system->setManager(std::make_unique<Manager>(system));

Telegram/SourceFiles/platform/platform_notifications_manager.h

@@ -18,6 +18,7 @@ namespace Notifications {
 
 [[nodiscard]] bool Supported();
 [[nodiscard]] bool Enforced();
+[[nodiscard]] bool ByDefault();
 void Create(Window::Notifications::System *system);
 
 } // namespace Notifications

Telegram/SourceFiles/platform/win/notifications_manager_win.cpp

@@ -273,6 +273,10 @@ bool Enforced() {
 	return false;
 }
 
+bool ByDefault() {
+	return false;
+}
+
 void Create(Window::Notifications::System *system) {
 #ifndef __MINGW32__
 	if (Core::App().settings().nativeNotifications() && Supported()) {