Remove some App::wnd() occurences.

Telegram/SourceFiles/facades.cpp

@@ -280,15 +280,6 @@ PeerData *getPeerForMouseAction() {
 	return Messenger::Instance().ui_getPeerForMouseAction();
 }
 
-bool hideWindowNoQuit() {
-	if (!App::quitting()) {
-		if (auto w = App::wnd()) {
-			return w->hideNoQuit();
-		}
-	}
-	return false;
-}
-
 bool skipPaintEvent(QWidget *widget, QPaintEvent *event) {
 	if (auto w = App::wnd()) {
 		if (w->contentOverlapped(widget, event)) {

Telegram/SourceFiles/facades.h

@@ -147,8 +147,6 @@ inline void showChatsListAsync() {
 }
 PeerData *getPeerForMouseAction();
 
-bool hideWindowNoQuit();
-
 bool skipPaintEvent(QWidget *widget, QPaintEvent *event);
 
 } // namespace Ui

Telegram/SourceFiles/mainwindow.cpp

@@ -776,7 +776,7 @@ void MainWindow::closeEvent(QCloseEvent *e) {
 		App::quit();
 	} else {
 		e->ignore();
-		if (!AuthSession::Exists() || !Ui::hideWindowNoQuit()) {
+		if (!AuthSession::Exists() || !hideNoQuit()) {
 			App::quit();
 		}
 	}

Telegram/SourceFiles/messenger.cpp

@@ -187,7 +187,9 @@ Messenger::Messenger() : QObject()
 bool Messenger::hideMediaView() {
 	if (_mediaView && !_mediaView->isHidden()) {
 		_mediaView->hide();
-		_window->reActivateWindow();
+		if (auto activeWindow = getActiveWindow()) {
+			activeWindow->reActivateWindow();
+		}
 		return true;
 	}
 	return false;
@@ -930,10 +932,36 @@ Messenger::~Messenger() {
 	SingleInstance = nullptr;
 }
 
-MainWindow *Messenger::getActiveWindow() {
+MainWindow *Messenger::getActiveWindow() const {
 	return _window.get();
 }
 
+bool Messenger::closeActiveWindow() {
+	if (hideMediaView()) {
+		return true;
+	}
+	if (auto activeWindow = getActiveWindow()) {
+		if (!activeWindow->hideNoQuit()) {
+			activeWindow->close();
+		}
+		return true;
+	}
+	return false;
+}
+
+bool Messenger::minimizeActiveWindow() {
+	hideMediaView();
+	if (auto activeWindow = getActiveWindow()) {
+		if (Global::WorkMode().value() == dbiwmTrayOnly) {
+			activeWindow->minimizeToTray();
+		} else {
+			activeWindow->setWindowState(Qt::WindowMinimized);
+		}
+		return true;
+	}
+	return false;
+}
+
 QWidget *Messenger::getFileDialogParent() {
 	return (_mediaView && _mediaView->isVisible()) ? (QWidget*)_mediaView.get() : (QWidget*)getActiveWindow();
 }
@@ -955,12 +983,14 @@ void Messenger::loggedOut() {
 }
 
 QPoint Messenger::getPointForCallPanelCenter() const {
-	Expects(_window != nullptr);
-	Expects(_window->windowHandle() != nullptr);
-	if (_window->isActive()) {
-		return _window->geometry().center();
+	if (auto activeWindow = getActiveWindow()) {
+		t_assert(activeWindow->windowHandle() != nullptr);
+		if (activeWindow->isActive()) {
+			return activeWindow->geometry().center();
+		}
+		return activeWindow->windowHandle()->screen()->geometry().center();
 	}
-	return _window->windowHandle()->screen()->geometry().center();
+	return QApplication::desktop()->screenGeometry().center();
 }
 
 void Messenger::QuitAttempt() {

Telegram/SourceFiles/messenger.h

@@ -71,7 +71,9 @@ public:
 	~Messenger();
 
 	// Windows interface.
-	MainWindow *getActiveWindow();
+	MainWindow *getActiveWindow() const;
+	bool closeActiveWindow();
+	bool minimizeActiveWindow();
 	QWidget *getFileDialogParent();
 	QWidget *getGlobalShortcutParent() {
 		return &_globalShortcutParent;

Telegram/SourceFiles/shortcuts.cpp

@@ -33,38 +33,19 @@ namespace ShortcutCommands {
 using Handler = bool(*)();
 
 bool lock_telegram() {
-	if (auto w = App::wnd()) {
-		if (App::passcoded()) {
-			w->passcodeWidget()->onSubmit();
-			return true;
-		} else if (Global::LocalPasscode()) {
-			Messenger::Instance().setupPasscode();
-			return true;
-		}
+	if (!App::passcoded() && Global::LocalPasscode()) {
+		Messenger::Instance().setupPasscode();
+		return true;
 	}
 	return false;
 }
 
 bool minimize_telegram() {
-	if (auto w = App::wnd()) {
-		if (Global::WorkMode().value() == dbiwmTrayOnly) {
-			w->minimizeToTray();
-		} else {
-			w->setWindowState(Qt::WindowMinimized);
-		}
-	}
-	return true;
+	return Messenger::Instance().minimizeActiveWindow();
 }
 
 bool close_telegram() {
-	if (!Messenger::Instance().hideMediaView()) {
-		if (!Ui::hideWindowNoQuit()) {
-			if (auto w = App::wnd()) {
-				w->close();
-			}
-		}
-	}
-	return true;
+	return Messenger::Instance().closeActiveWindow();
 }
 
 bool quit_telegram() {

Telegram/SourceFiles/window/main_window.cpp

@@ -80,6 +80,9 @@ MainWindow::MainWindow() : QWidget()
 }
 
 bool MainWindow::hideNoQuit() {
+	if (App::quitting()) {
+		return false;
+	}
 	if (Global::WorkMode().value() == dbiwmTrayOnly || Global::WorkMode().value() == dbiwmWindowAndTray) {
 		if (minimizeToTray()) {
 			Ui::showChatsList();