diff --git a/ui/layers/box_content.cpp b/ui/layers/box_content.cpp
index f4aae48..d669d80 100644
--- a/ui/layers/box_content.cpp
+++ b/ui/layers/box_content.cpp
@@ -98,6 +98,12 @@ void BoxContent::finishScrollCreate() {
 		updateInnerVisibleTopBottom();
 		updateShadowsVisibility();
 	}, lifetime());
+	_draggingScroll.scrolls(
+	) | rpl::start_with_next([=](int delta) {
+		if (_scroll) {
+			_scroll->scrollToY(_scroll->scrollTop() + delta);
+		}
+	}, lifetime());
 }
 
 void BoxContent::scrollToWidget(not_null<QWidget*> widget) {
@@ -117,24 +123,7 @@ void BoxContent::scrollToY(int top, int bottom) {
 }
 
 void BoxContent::scrollByDraggingDelta(int delta) {
-	_draggingScrollDelta = _scroll ? delta : 0;
-	if (_draggingScrollDelta) {
-		if (!_draggingScrollTimer) {
-			_draggingScrollTimer = std::make_unique<base::Timer>([=] {
-				draggingScrollTimerCallback();
-			});
-		}
-		_draggingScrollTimer->callEach(15);
-	} else {
-		_draggingScrollTimer = nullptr;
-	}
-}
-
-void BoxContent::draggingScrollTimerCallback() {
-	const auto delta = (_draggingScrollDelta > 0)
-		? qMin(_draggingScrollDelta * 3 / 20 + 1, int32(kMaxScrollSpeed))
-		: qMax(_draggingScrollDelta * 3 / 20 - 1, -int32(kMaxScrollSpeed));
-	_scroll->scrollToY(_scroll->scrollTop() + delta);
+	_draggingScroll.checkDeltaScroll(_scroll ? delta : 0);
 }
 
 void BoxContent::updateInnerVisibleTopBottom() {
diff --git a/ui/layers/box_content.h b/ui/layers/box_content.h
index 9426d88..e1a5bb4 100644
--- a/ui/layers/box_content.h
+++ b/ui/layers/box_content.h
@@ -8,6 +8,7 @@
 
 #include "base/unique_qptr.h"
 #include "base/flags.h"
+#include "ui/dragging_scroll_manager.h"
 #include "ui/wrap/padding_wrap.h"
 #include "ui/widgets/labels.h"
 #include "ui/layers/layer_widget.h"
@@ -287,8 +288,6 @@ private:
 	void updateShadowsVisibility();
 	object_ptr<TWidget> doTakeInnerWidget();
 
-	void draggingScrollTimerCallback();
-
 	BoxContentDelegate *_delegate = nullptr;
 
 	bool _preparing = false;
@@ -300,8 +299,7 @@ private:
 	object_ptr<FadeShadow> _topShadow = { nullptr };
 	object_ptr<FadeShadow> _bottomShadow = { nullptr };
 
-	std::unique_ptr<base::Timer> _draggingScrollTimer;
-	int _draggingScrollDelta = 0;
+	Ui::DraggingScrollManager _draggingScroll;
 
 	rpl::event_stream<> _boxClosingStream;