diff --git a/Telegram/SourceFiles/dialogs/dialogs_widget.cpp b/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
index 40aa8f90c..719889fa3 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
+++ b/Telegram/SourceFiles/dialogs/dialogs_widget.cpp
@@ -171,6 +171,7 @@ Widget::Widget(
 	not_null<Window::SessionController*> controller)
 : Window::AbstractSectionWidget(parent, controller, nullptr)
 , _api(&controller->session().mtp())
+, _chooseByDragTimer([=] { _inner->chooseRow(); })
 , _searchControls(this)
 , _mainMenuToggle(_searchControls, st::dialogsMenuToggle)
 , _searchForNarrowFilters(_searchControls, st::dialogsSearchForNarrowFilters)
@@ -185,12 +186,13 @@ Widget::Widget(
 , _lockUnlock(_searchControls, st::dialogsLock)
 , _scroll(this)
 , _scrollToTop(_scroll, st::dialogsToUp)
+, _searchTimer([=] { searchMessages(); })
 , _singleMessageSearch(&controller->session()) {
 	_inner = _scroll->setOwnedWidget(object_ptr<InnerWidget>(this, controller));
 
 	_inner->updated(
 	) | rpl::start_with_next([=] {
-		onListScroll();
+		listScrollUpdated();
 	}, lifetime());
 
 	rpl::combine(
@@ -233,19 +235,19 @@ Widget::Widget(
 	}, lifetime());
 	_inner->searchMessages(
 	) | rpl::start_with_next([=] {
-		onNeedSearchMessages();
+		needSearchMessages();
 	}, lifetime());
 	_inner->cancelSearchInChatRequests(
 	) | rpl::start_with_next([=] {
-		onCancelSearchInChat();
+		cancelSearchInChat();
 	}, lifetime());
 	_inner->completeHashtagRequests(
 	) | rpl::start_with_next([=](const QString &tag) {
-		onCompleteHashtag(tag);
+		completeHashtag(tag);
 	}, lifetime());
 	_inner->refreshHashtagsRequests(
 	) | rpl::start_with_next([=] {
-		onFilterCursorMoved();
+		filterCursorMoved();
 	}, lifetime());
 	_inner->cancelSearchFromUserRequests(
 	) | rpl::start_with_next([=] {
@@ -289,26 +291,26 @@ Widget::Widget(
 	}), lifetime());
 	_scroll->scrolls(
 	) | rpl::start_with_next([=] {
-		onListScroll();
+		listScrollUpdated();
 	}, lifetime());
 
 	session().data().chatsListChanges(
 	) | rpl::filter([=](Data::Folder *folder) {
 		return (folder == _inner->shownFolder());
 	}) | rpl::start_with_next([=] {
-		Ui::PostponeCall(this, [=] { onListScroll(); });
+		Ui::PostponeCall(this, [=] { listScrollUpdated(); });
 	}, lifetime());
 
-	connect(_filter, &Ui::FlatInput::cancelled, [=] {
+	QObject::connect(_filter, &Ui::FlatInput::cancelled, [=] {
 		escape();
 	});
-	connect(_filter, &Ui::FlatInput::changed, [=] {
+	QObject::connect(_filter, &Ui::FlatInput::changed, [=] {
 		applyFilterUpdate();
 	});
-	connect(
+	QObject::connect(
 		_filter,
 		&Ui::FlatInput::cursorPositionChanged,
-		[=](int from, int to) { onFilterCursorMoved(from, to); });
+		[=](int from, int to) { filterCursorMoved(from, to); });
 
 	if (!Core::UpdaterDisabled()) {
 		Core::UpdateChecker checker;
@@ -327,7 +329,7 @@ Widget::Widget(
 		updateForwardBar();
 	}, lifetime());
 
-	_cancelSearch->setClickedCallback([this] { onCancelSearch(); });
+	_cancelSearch->setClickedCallback([this] { cancelSearch(); });
 	_jumpToDate->entity()->setClickedCallback([this] { showCalendar(); });
 	_chooseFromUser->entity()->setClickedCallback([this] { showSearchFrom(); });
 	rpl::single(rpl::empty) | rpl::then(
@@ -345,14 +347,8 @@ Widget::Widget(
 
 	_searchForNarrowFilters->setClickedCallback([=] { Ui::showChatsList(&session()); });
 
-	_chooseByDragTimer.setSingleShot(true);
-	connect(&_chooseByDragTimer, SIGNAL(timeout()), this, SLOT(onChooseByDrag()));
-
 	setAcceptDrops(true);
 
-	_searchTimer.setSingleShot(true);
-	connect(&_searchTimer, SIGNAL(timeout()), this, SLOT(onSearchMessages()));
-
 	_inner->setLoadMoreCallback([=] {
 		const auto state = _inner->state();
 		if (state == WidgetState::Filtered
@@ -360,7 +356,7 @@ Widget::Widget(
 				|| (_searchInMigrated
 					&& _searchFull
 					&& !_searchFullMigrated))) {
-			onSearchMore();
+			searchMore();
 		} else {
 			const auto folder = _inner->shownFolder();
 			if (!folder || !folder->chatsList()->loaded()) {
@@ -570,7 +566,7 @@ void Widget::fullSearchRefreshOn(rpl::producer<> events) {
 	) | rpl::filter([=] {
 		return !_searchQuery.isEmpty();
 	}) | rpl::start_with_next([=] {
-		_searchTimer.stop();
+		_searchTimer.cancel();
 		_searchCache.clear();
 		_singleMessageSearch.clear();
 		for (const auto &[requestId, query] : base::take(_searchQueries)) {
@@ -579,7 +575,7 @@ void Widget::fullSearchRefreshOn(rpl::producer<> events) {
 		_searchQuery = QString();
 		_scroll->scrollToY(0);
 		cancelSearchRequest();
-		onSearchMessages();
+		searchMessages();
 	}, lifetime());
 }
 
@@ -845,7 +841,7 @@ void Widget::animationCallback() {
 void Widget::escape() {
 	if (controller()->openedFolder().current()) {
 		controller()->closeFolder();
-	} else if (!onCancelSearch()) {
+	} else if (!cancelSearch()) {
 		if (controller()->activeChatEntryCurrent().key) {
 			controller()->content()->dialogsCancelled();
 		} else if (controller()->activeChatsFilterCurrent()) {
@@ -893,7 +889,7 @@ void Widget::loadMoreBlockedByDate() {
 	session().api().requestMoreBlockedByDateDialogs();
 }
 
-bool Widget::onSearchMessages(bool searchCache) {
+bool Widget::searchMessages(bool searchCache) {
 	auto result = false;
 	auto q = _filter->getLastText().trimmed();
 	if (q.isEmpty() && !_searchFromAuthor) {
@@ -903,7 +899,7 @@ bool Widget::onSearchMessages(bool searchCache) {
 	}
 	if (searchCache) {
 		const auto success = _singleMessageSearch.lookup(q, [=] {
-			onNeedSearchMessages();
+			needSearchMessages();
 		});
 		if (!success) {
 			return false;
@@ -1036,16 +1032,12 @@ bool Widget::searchForPeersRequired(const QString &query) const {
 	return (query[0] != '#');
 }
 
-void Widget::onNeedSearchMessages() {
-	if (!onSearchMessages(true)) {
-		_searchTimer.start(AutoSearchTimeout);
+void Widget::needSearchMessages() {
+	if (!searchMessages(true)) {
+		_searchTimer.callOnce(AutoSearchTimeout);
 	}
 }
 
-void Widget::onChooseByDrag() {
-	_inner->chooseRow();
-}
-
 void Widget::showMainMenu() {
 	controller()->widget()->showMainMenu();
 }
@@ -1065,20 +1057,20 @@ void Widget::searchMessages(
 	}();
 	if ((_filter->getLastText() != query) || inChatChanged) {
 		if (inChat) {
-			onCancelSearch();
+			cancelSearch();
 			setSearchInChat(inChat);
 		}
 		_filter->setText(query);
 		_filter->updatePlaceholder();
 		applyFilterUpdate(true);
-		_searchTimer.stop();
-		onSearchMessages();
+		_searchTimer.cancel();
+		searchMessages();
 
 		session().local().saveRecentSearchHashtags(query);
 	}
 }
 
-void Widget::onSearchMore() {
+void Widget::searchMore() {
 	if (_searchRequest || _searchInHistoryRequest) {
 		return;
 	}
@@ -1306,7 +1298,7 @@ void Widget::searchReceived(
 	}
 
 	_searchRequest = 0;
-	onListScroll();
+	listScrollUpdated();
 	update();
 }
 
@@ -1333,7 +1325,7 @@ void Widget::peerSearchReceived(
 		}
 
 		_peerSearchRequest = 0;
-		onListScroll();
+		listScrollUpdated();
 	}
 }
 
@@ -1386,7 +1378,7 @@ void Widget::dragEnterEvent(QDragEnterEvent *e) {
 		e->setDropAction(Qt::CopyAction);
 		e->accept();
 	}
-	_chooseByDragTimer.stop();
+	_chooseByDragTimer.cancel();
 }
 
 void Widget::dragMoveEvent(QDragMoveEvent *e) {
@@ -1394,7 +1386,7 @@ void Widget::dragMoveEvent(QDragMoveEvent *e) {
 		if (_dragForward) {
 			updateDragInScroll(true);
 		} else {
-			_chooseByDragTimer.start(ChoosePeerByDragTimeout);
+			_chooseByDragTimer.callOnce(ChoosePeerByDragTimeout);
 		}
 		if (_inner->updateFromParentDrag(mapToGlobal(e->pos()))) {
 			e->setDropAction(Qt::CopyAction);
@@ -1413,7 +1405,7 @@ void Widget::dragLeaveEvent(QDragLeaveEvent *e) {
 	if (_dragForward) {
 		updateDragInScroll(false);
 	} else {
-		_chooseByDragTimer.stop();
+		_chooseByDragTimer.cancel();
 	}
 	_inner->dragLeft();
 	e->accept();
@@ -1431,7 +1423,7 @@ void Widget::updateDragInScroll(bool inScroll) {
 }
 
 void Widget::dropEvent(QDropEvent *e) {
-	_chooseByDragTimer.stop();
+	_chooseByDragTimer.cancel();
 	if (_scroll->geometry().contains(e->pos())) {
 		if (auto peer = _inner->updateFromParentDrag(mapToGlobal(e->pos()))) {
 			e->acceptProposedAction();
@@ -1444,7 +1436,7 @@ void Widget::dropEvent(QDropEvent *e) {
 	}
 }
 
-void Widget::onListScroll() {
+void Widget::listScrollUpdated() {
 	const auto scrollTop = _scroll->scrollTop();
 	_inner->setVisibleTopBottom(scrollTop, scrollTop + _scroll->height());
 	updateScrollUpVisibility();
@@ -1487,7 +1479,7 @@ void Widget::applyFilterUpdate(bool force) {
 }
 
 void Widget::searchInChat(Key chat) {
-	onCancelSearch();
+	cancelSearch();
 	setSearchInChat(chat);
 	applyFilterUpdate(true);
 }
@@ -1520,7 +1512,7 @@ void Widget::setSearchInChat(Key chat, PeerData *from) {
 	}
 	_inner->searchInChat(_searchInChat, _searchFromAuthor);
 	if (_searchFromAuthor && _lastFilterText == SwitchToChooseFromQuery()) {
-		onCancelSearch();
+		cancelSearch();
 	}
 	_filter->setFocus();
 }
@@ -1556,7 +1548,7 @@ void Widget::showSearchFrom() {
 	}
 }
 
-void Widget::onFilterCursorMoved(int from, int to) {
+void Widget::filterCursorMoved(int from, int to) {
 	if (to < 0) to = _filter->cursorPosition();
 	QString t = _filter->getLastText();
 	QStringView r;
@@ -1572,7 +1564,7 @@ void Widget::onFilterCursorMoved(int from, int to) {
 	_inner->onHashtagFilterUpdate(r);
 }
 
-void Widget::onCompleteHashtag(QString tag) {
+void Widget::completeHashtag(QString tag) {
 	QString t = _filter->getLastText(), r;
 	int cur = _filter->cursorPosition();
 	for (int start = cur; start > 0;) {
@@ -1723,7 +1715,7 @@ void Widget::updateControlsGeometry() {
 	if (_topDelta) {
 		_scroll->scrollToY(newScrollTop);
 	} else {
-		onListScroll();
+		listScrollUpdated();
 	}
 	if (_scrollToTopIsShown) {
 		updateScrollUpPosition();
@@ -1778,7 +1770,7 @@ void Widget::keyPressEvent(QKeyEvent *e) {
 				_inner->selectSkip(1);
 				_inner->chooseRow();
 			} else {
-				onSearchMessages();
+				searchMessages();
 			}
 		}
 	} else if (e->key() == Qt::Key_Down) {
@@ -1861,7 +1853,7 @@ void Widget::cancelSearchRequest() {
 		base::take(_searchInHistoryRequest));
 }
 
-bool Widget::onCancelSearch() {
+bool Widget::cancelSearch() {
 	bool clearing = !_filter->getLastText().isEmpty();
 	cancelSearchRequest();
 	if (_searchInChat && !clearing) {
@@ -1869,7 +1861,7 @@ bool Widget::onCancelSearch() {
 			if (const auto peer = _searchInChat.peer()) {
 				Ui::showPeerHistory(peer, ShowAtUnreadMsgId);
 			} else {
-				Unexpected("Empty key in onCancelSearch().");
+				Unexpected("Empty key in cancelSearch().");
 			}
 		}
 		setSearchInChat(Key());
@@ -1882,7 +1874,7 @@ bool Widget::onCancelSearch() {
 	return clearing;
 }
 
-void Widget::onCancelSearchInChat() {
+void Widget::cancelSearchInChat() {
 	cancelSearchRequest();
 	const auto isOneColumn = controller()->adaptive().isOneColumn();
 	if (_searchInChat) {
@@ -1892,7 +1884,7 @@ void Widget::onCancelSearchInChat() {
 			if (const auto peer = _searchInChat.peer()) {
 				Ui::showPeerHistory(peer, ShowAtUnreadMsgId);
 			} else {
-				Unexpected("Empty key in onCancelSearchInPeer().");
+				Unexpected("Empty key in cancelSearchInPeer().");
 			}
 		}
 		setSearchInChat(Key());
diff --git a/Telegram/SourceFiles/dialogs/dialogs_widget.h b/Telegram/SourceFiles/dialogs/dialogs_widget.h
index 5a0b45133..b9440bf98 100644
--- a/Telegram/SourceFiles/dialogs/dialogs_widget.h
+++ b/Telegram/SourceFiles/dialogs/dialogs_widget.h
@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+#include "base/timer.h"
 #include "dialogs/dialogs_key.h"
 #include "window/section_widget.h"
 #include "ui/effects/animations.h"
@@ -15,8 +16,6 @@ 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
@@ -57,7 +56,6 @@ class InnerWidget;
 enum class SearchRequestType;
 
 class Widget final : public Window::AbstractSectionWidget {
-	Q_OBJECT
 
 public:
 	Widget(QWidget *parent, not_null<Window::SessionController*> controller);
@@ -86,7 +84,7 @@ public:
 	void scrollToEntry(const RowDescriptor &entry);
 
 	void searchMessages(const QString &query, Key inChat = {});
-	void onSearchMore();
+	void searchMore();
 
 	void updateForwardBar();
 
@@ -99,21 +97,10 @@ public:
 	bool floatPlayerHandleWheelEvent(QEvent *e) override;
 	QRect floatPlayerAvailableRect() override;
 
+	bool cancelSearch();
+
 	~Widget();
 
-public Q_SLOTS:
-	void onListScroll();
-	bool onCancelSearch();
-	void onCancelSearchInChat();
-
-	void onFilterCursorMoved(int from = -1, int to = -1);
-	void onCompleteHashtag(QString tag);
-
-	bool onSearchMessages(bool searchCache = false);
-	void onNeedSearchMessages();
-
-	void onChooseByDrag();
-
 protected:
 	void dragEnterEvent(QDragEnterEvent *e) override;
 	void dragMoveEvent(QDragMoveEvent *e) override;
@@ -129,6 +116,14 @@ private:
 		Internal,
 	};
 
+	void listScrollUpdated();
+	void cancelSearchInChat();
+	void filterCursorMoved(int from = -1, int to = -1);
+	void completeHashtag(QString tag);
+
+	bool searchMessages(bool searchCache = false);
+	void needSearchMessages();
+
 	void animationCallback();
 	void searchReceived(
 		SearchRequestType type,
@@ -183,7 +178,7 @@ private:
 
 	bool _dragInScroll = false;
 	bool _dragForward = false;
-	QTimer _chooseByDragTimer;
+	base::Timer _chooseByDragTimer;
 
 	object_ptr<Ui::IconButton> _forwardCancel = { nullptr };
 	object_ptr<Ui::RpWidget> _searchControls;
@@ -219,7 +214,7 @@ private:
 	PeerData *_searchFromAuthor = nullptr;
 	QString _lastFilterText;
 
-	QTimer _searchTimer;
+	base::Timer _searchTimer;
 
 	QString _peerSearchQuery;
 	bool _peerSearchFull = false;
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 909cc65a9..f96f51456 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -676,7 +676,7 @@ void MainWidget::hiderLayer(base::unique_qptr<Window::HistoryHider> hider) {
 
 	_hider->confirmed(
 	) | rpl::start_with_next([=] {
-		_dialogs->onCancelSearch();
+		_dialogs->cancelSearch();
 	}, _hider->lifetime());
 
 	if (isOneColumn()) {