Move filters side bar inside bodyWidget.

Telegram/SourceFiles/mainwindow.cpp

@@ -799,7 +799,21 @@ void MainWindow::updateControlsGeometry() {
 
 	auto body = bodyWidget()->rect();
 	if (_passcodeLock) _passcodeLock->setGeometry(body);
-	if (_main) _main->setGeometry(body);
+	auto mainLeft = 0;
+	auto mainWidth = body.width();
+	if (const auto session = sessionController()) {
+		if (const auto skip = session->filtersWidth()) {
+			mainLeft += skip;
+			mainWidth -= skip;
+		}
+	}
+	if (_main) {
+		_main->setGeometry({
+			body.x() + mainLeft,
+			body.y(),
+			mainWidth,
+			body.height() });
+	}
 	if (_intro) _intro->setGeometry(body);
 	if (_layer) _layer->setGeometry(body);
 	if (_mediaPreview) _mediaPreview->setGeometry(body);

Telegram/SourceFiles/window/main_window.cpp

@@ -522,12 +522,6 @@ void MainWindow::updateControlsGeometry() {
 		bodyWidth -= _rightColumn->width();
 		_rightColumn->setGeometry(bodyWidth, bodyTop, width() - bodyWidth, height() - bodyTop);
 	}
-	if (const auto session = _controller->sessionController()) {
-		if (const auto skip = session->filtersWidth()) {
-			bodyLeft += skip;
-			bodyWidth -= skip;
-		}
-	}
 	_body->setGeometry(bodyLeft, bodyTop, bodyWidth, height() - bodyTop);
 }
 

Telegram/SourceFiles/window/window_filters_menu.cpp

@@ -17,19 +17,19 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Window {
 
-FiltersMenu::FiltersMenu(not_null<SessionController*> session)
+FiltersMenu::FiltersMenu(
+	not_null<Ui::RpWidget*> parent,
+	not_null<SessionController*> session)
 : _session(session)
-, _widget(session->widget(), st::defaultSideBarMenu) {
+, _parent(parent)
+, _widget(_parent, st::defaultSideBarMenu) {
 	setup();
 }
 
 void FiltersMenu::setup() {
-	const auto body = _session->widget()->bodyWidget();
-	rpl::combine(
-		body->topValue(),
-		body->heightValue()
-	) | rpl::start_with_next([=](int top, int height) {
-		_widget.setGeometry({ 0, top, st::windowFiltersWidth, height });
+	_parent->heightValue(
+	) | rpl::start_with_next([=](int height) {
+		_widget.setGeometry({ 0, 0, st::windowFiltersWidth, height });
 	}, _widget.lifetime());
 
 	const auto filters = &_session->session().data().chatsFilters();

Telegram/SourceFiles/window/window_filters_menu.h

@@ -15,13 +15,16 @@ class SessionController;
 
 class FiltersMenu final {
 public:
-	explicit FiltersMenu(not_null<SessionController*> session);
+	FiltersMenu(
+		not_null<Ui::RpWidget*> parent,
+		not_null<SessionController*> session);
 
 private:
 	void setup();
 	void refresh();
 
 	const not_null<SessionController*> _session;
+	const not_null<Ui::RpWidget*> _parent;
 	Ui::SideBarMenu _widget;
 
 };

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -194,7 +194,9 @@ void SessionController::toggleFiltersMenu(bool enabled) {
 	if (!enabled == !_filters) {
 		return;
 	} else if (enabled) {
-		_filters = std::make_unique<FiltersMenu>(this);
+		_filters = std::make_unique<FiltersMenu>(
+			widget()->bodyWidget(),
+			this);
 	} else {
 		_filters = nullptr;
 	}
@@ -346,10 +348,10 @@ bool SessionController::forceWideDialogs() const {
 	return !App::main()->isMainSectionShown();
 }
 
-SessionController::ColumnLayout SessionController::computeColumnLayout() const {
+auto SessionController::computeColumnLayout() const -> ColumnLayout {
 	auto layout = Adaptive::WindowLayout::OneColumn;
 
-	auto bodyWidth = widget()->bodyWidget()->width();
+	auto bodyWidth = widget()->bodyWidget()->width() - filtersWidth();
 	auto dialogsWidth = 0, chatWidth = 0, thirdWidth = 0;
 
 	auto useOneColumnLayout = [&] {

Telegram/SourceFiles/window/window_session_controller.h

@@ -215,7 +215,7 @@ public:
 		int thirdWidth;
 		Adaptive::WindowLayout windowLayout;
 	};
-	ColumnLayout computeColumnLayout() const;
+	[[nodiscard]] ColumnLayout computeColumnLayout() const;
 	int dialogsSmallColumnWidth() const;
 	bool forceWideDialogs() const;
 	void updateColumnLayout();