Fix saving maximized state on Linux

Telegram/SourceFiles/platform/linux/main_window_linux.cpp

@@ -461,12 +461,6 @@ void MainWindow::initHook() {
 			handleAppMenuOwnerChanged(service, oldOwner, newOwner);
 		});
 
-	connect(
-		windowHandle(),
-		&QWindow::visibleChanged,
-		this,
-		[=](bool visible) { handleVisibleChanged(visible); });
-
 	if (AppMenuSupported) {
 		LOG(("Using D-Bus global menu."));
 	} else {
@@ -775,6 +769,9 @@ void MainWindow::createGlobalMenu() {
 void MainWindow::updateGlobalMenuHook() {
 }
 
+void MainWindow::handleVisibleChangedHook(bool visible) {
+}
+
 #else // DESKTOP_APP_DISABLE_DBUS_INTEGRATION
 
 void MainWindow::createGlobalMenu() {
@@ -1076,7 +1073,7 @@ void MainWindow::updateGlobalMenuHook() {
 	ForceDisabled(psClearFormat, !markdownEnabled);
 }
 
-void MainWindow::handleVisibleChanged(bool visible) {
+void MainWindow::handleVisibleChangedHook(bool visible) {
 	if (AppMenuSupported && !_mainMenuPath.path().isEmpty()) {
 		if (visible) {
 			RegisterAppMenu(winId(), _mainMenuPath);

Telegram/SourceFiles/platform/linux/main_window_linux.h

@@ -41,6 +41,7 @@ protected:
 	void initHook() override;
 	void unreadCounterChangedHook() override;
 	void updateGlobalMenuHook() override;
+	void handleVisibleChangedHook(bool visible) override;
 
 	void initTrayMenuHook() override;
 	bool hasTrayIcon() const override;
@@ -67,7 +68,6 @@ private:
 
 	void updateIconCounters();
 	void updateWaylandDecorationColors();
-	void handleVisibleChanged(bool visible);
 
 #ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
 	StatusNotifierItem *_sniTrayIcon = nullptr;

Telegram/SourceFiles/window/main_window.cpp

@@ -236,6 +236,11 @@ void MainWindow::init() {
 		&QWindow::windowStateChanged,
 		this,
 		[=](Qt::WindowState state) { handleStateChanged(state); });
+	connect(
+		windowHandle(),
+		&QWindow::visibleChanged,
+		this,
+		[=](bool visible) { handleVisibleChanged(visible); });
 
 	updatePalette();
 
@@ -278,6 +283,19 @@ void MainWindow::handleActiveChanged() {
 	});
 }
 
+void MainWindow::handleVisibleChanged(bool visible) {
+	if (visible) {
+		if (_maximizedBeforeHide) {
+			DEBUG_LOG(("Window Pos: Window was maximized before hidding, setting maximized."));
+			setWindowState(Qt::WindowMaximized);
+		}
+	} else {
+		_maximizedBeforeHide = cWindowPos().maximized;
+	}
+
+	handleVisibleChangedHook(visible);
+}
+
 void MainWindow::updatePalette() {
 	Ui::ForceFullRepaint(this);
 
@@ -521,8 +539,15 @@ void MainWindow::updateUnreadCounter() {
 }
 
 void MainWindow::savePosition(Qt::WindowState state) {
-	if (state == Qt::WindowActive) state = windowHandle()->windowState();
+	if (state == Qt::WindowActive) {
-	if (state == Qt::WindowMinimized || !positionInited()) return;
+		state = windowHandle()->windowState();
+	}
+
+	if (state == Qt::WindowMinimized
+		|| !isVisible()
+		|| !positionInited()) {
+		return;
+	}
 
 	auto savedPosition = cWindowPos();
 	auto realPosition = savedPosition;

Telegram/SourceFiles/window/main_window.h

@@ -124,6 +124,7 @@ protected:
 	void savePosition(Qt::WindowState state = Qt::WindowActive);
 	void handleStateChanged(Qt::WindowState state);
 	void handleActiveChanged();
+	void handleVisibleChanged(bool visible);
 
 	virtual void initHook() {
 	}
@@ -134,6 +135,9 @@ protected:
 	virtual void handleActiveChangedHook() {
 	}
 
+	virtual void handleVisibleChangedHook(bool visible) {
+	}
+
 	virtual void clearWidgetsHook() {
 	}
 
@@ -210,6 +214,8 @@ private:
 	base::Observable<void> _dragFinished;
 	rpl::event_stream<> _leaveEvents;
 
+	bool _maximizedBeforeHide = false;
+
 };
 
 } // namespace Window