From 5ee7cb4dbfda1a10d78d398acb949fca392c6e61 Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Mon, 21 Aug 2023 17:56:57 +0300
Subject: [PATCH] Improved mouse wheel handling in vertical drum picker without
 animation.

---
 Telegram/SourceFiles/ui/widgets/vertical_drum_picker.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/ui/widgets/vertical_drum_picker.cpp b/Telegram/SourceFiles/ui/widgets/vertical_drum_picker.cpp
index 87950995a..9e546e004 100644
--- a/Telegram/SourceFiles/ui/widgets/vertical_drum_picker.cpp
+++ b/Telegram/SourceFiles/ui/widgets/vertical_drum_picker.cpp
@@ -12,8 +12,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Ui {
 
-PickerAnimation::PickerAnimation() {
-}
+PickerAnimation::PickerAnimation() = default;
 
 void PickerAnimation::jumpToOffset(int offset) {
 	_result.from = _result.current;
@@ -95,8 +94,13 @@ VerticalDrumPicker::VerticalDrumPicker(
 	}, lifetime());
 
 	_animation.updates(
+	) | rpl::distinct_until_changed(
 	) | rpl::start_with_next([=](PickerAnimation::Shift shift) {
 		increaseShift(shift);
+		if (anim::Disabled()) {
+			animationDataFromIndex();
+			_animation.jumpToOffset(0);
+		}
 	}, lifetime());
 }