Removed Q_OBJECT from ScrollArea.

Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp

@@ -168,11 +168,10 @@ FieldAutocomplete::FieldAutocomplete(
 
 	hide();
 
-	connect(
-		_scroll,
-		&Ui::ScrollArea::geometryChanged,
-		_inner,
-		&Inner::onParentGeometryChanged);
+	_scroll->geometryChanged(
+	) | rpl::start_with_next(crl::guard(_inner, [=] {
+		_inner->onParentGeometryChanged();
+	}), lifetime());
 }
 
 not_null<Window::SessionController*> FieldAutocomplete::controller() const {

Telegram/SourceFiles/dialogs/dialogs_widget.cpp

@@ -234,7 +234,10 @@ Widget::Widget(
 		}
 	}, lifetime());
 
-	connect(_scroll, SIGNAL(geometryChanged()), _inner, SLOT(onParentGeometryChanged()));
+	_scroll->geometryChanged(
+	) | rpl::start_with_next(crl::guard(_inner, [=] {
+		_inner->onParentGeometryChanged();
+	}), lifetime());
 	connect(_scroll, SIGNAL(scrolled()), this, SLOT(onListScroll()));
 
 	session().data().chatsListChanges(

Telegram/SourceFiles/dialogs/dialogs_widget.h

@@ -15,6 +15,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mtproto/sender.h"
 #include "api/api_single_message_search.h"
 
+#include <QtCore/QTimer>
+
 namespace MTP {
 class Error;
 } // namespace MTP

Telegram/SourceFiles/history/admin_log/history_admin_log_section.cpp

@@ -322,8 +322,10 @@ Widget::Widget(
 
 	_scroll->move(0, _fixedBar->height());
 	_scroll->show();
-
-	connect(_scroll, &Ui::ScrollArea::scrolled, this, [this] { onScroll(); });
+	_scroll->scrolls(
+	) | rpl::start_with_next([=] {
+		onScroll();
+	}, lifetime());
 
 	_whatIsThis->setClickedCallback([=] {
 		controller->show(Box<InformBox>(channel->isMegagroup()

Telegram/SourceFiles/history/history_widget.cpp

@@ -252,9 +252,14 @@ HistoryWidget::HistoryWidget(
 		update();
 	}, lifetime());
 
-	connect(_scroll, &Ui::ScrollArea::scrolled, [=] {
+	_scroll->scrolls(
+	) | rpl::start_with_next([=] {
 		handleScroll();
-	});
+	}, lifetime());
+	_scroll->geometryChanged(
+	) | rpl::start_with_next(crl::guard(_list, [=] {
+		_list->onParentGeometryChanged();
+	}), lifetime());
 	_historyDown->addClickHandler([=] { historyDownClicked(); });
 	_unreadMentions->addClickHandler([=] { showNextUnreadMention(); });
 	_fieldBarCancel->addClickHandler([=] { cancelFieldAreaState(); });
@@ -2133,8 +2138,6 @@ void HistoryWidget::showHistory(
 
 		updateControlsGeometry();
 
-		connect(_scroll, SIGNAL(geometryChanged()), _list, SLOT(onParentGeometryChanged()));
-
 		if (const auto user = _peer->asUser()) {
 			if (const auto &info = user->botInfo) {
 				if (startBot) {

Telegram/SourceFiles/history/view/history_view_pinned_section.cpp

@@ -157,7 +157,10 @@ PinnedWidget::PinnedWidget(
 		static_cast<ListDelegate*>(this)));
 	_scroll->move(0, _topBar->height());
 	_scroll->show();
-	connect(_scroll.get(), &Ui::ScrollArea::scrolled, [=] { onScroll(); });
+	_scroll->scrolls(
+	) | rpl::start_with_next([=] {
+		onScroll();
+	}, lifetime());
 
 	setupClearButton();
 	setupScrollDownButton();

Telegram/SourceFiles/history/view/history_view_replies_section.cpp

@@ -224,7 +224,10 @@ RepliesWidget::RepliesWidget(
 		static_cast<ListDelegate*>(this)));
 	_scroll->move(0, _topBar->height());
 	_scroll->show();
-	connect(_scroll.get(), &Ui::ScrollArea::scrolled, [=] { onScroll(); });
+	_scroll->scrolls(
+	) | rpl::start_with_next([=] {
+		onScroll();
+	}, lifetime());
 
 	_inner->editMessageRequested(
 	) | rpl::start_with_next([=](auto fullId) {

Telegram/SourceFiles/history/view/history_view_scheduled_section.cpp

@@ -155,7 +155,10 @@ ScheduledWidget::ScheduledWidget(
 		static_cast<ListDelegate*>(this)));
 	_scroll->move(0, _topBar->height());
 	_scroll->show();
-	connect(_scroll, &Ui::ScrollArea::scrolled, [=] { onScroll(); });
+	_scroll->scrolls(
+	) | rpl::start_with_next([=] {
+		onScroll();
+	}, lifetime());
 
 	_inner->editMessageRequested(
 	) | rpl::start_with_next([=](auto fullId) {

Telegram/SourceFiles/inline_bots/inline_results_widget.cpp

@@ -48,11 +48,10 @@ Widget::Widget(
 
 	_inner->moveToLeft(0, 0, _scroll->width());
 
-	connect(
-		_scroll,
-		&Ui::ScrollArea::scrolled,
-		this,
-		&InlineBots::Layout::Widget::onScroll);
+	_scroll->scrolls(
+	) | rpl::start_with_next([=] {
+		onScroll();
+	}, lifetime());
 
 	_inner->inlineRowsCleared(
 	) | rpl::start_with_next([=] {

Telegram/lib_ui

@@ -1 +1 @@
-Subproject commit a827d9436e9ca258dfdfb9b67ef1ad917c13c5b5
+Subproject commit 7182fad08a004b86697af27c971c16bb12c8b421