From a4e7923b15909281be75119b2c8c6bb5178cd7e6 Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Fri, 10 Apr 2026 11:14:56 +0300
Subject: [PATCH] [poll-view] Prevented bogus poll percentages without total
 voter count.

---
 .../history/view/media/history_view_poll.cpp  | 27 ++++++++++++-------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/Telegram/SourceFiles/history/view/media/history_view_poll.cpp b/Telegram/SourceFiles/history/view/media/history_view_poll.cpp
index 2ffe81952f..d390b4560f 100644
--- a/Telegram/SourceFiles/history/view/media/history_view_poll.cpp
+++ b/Telegram/SourceFiles/history/view/media/history_view_poll.cpp
@@ -1529,7 +1529,8 @@ struct Poll::Options : public Poll::Part {
 		Answer &answer,
 		const PollAnswer &original,
 		int percent,
-		int maxVotes);
+		int maxVotes,
+		bool showPercent);
 
 	std::vector<Answer> _answers;
 	mutable std::unique_ptr<AnswersAnimation> _answersAnimation;
@@ -2823,8 +2824,9 @@ void Poll::Options::updateAnswerVotesFromOriginal(
 		Answer &answer,
 		const PollAnswer &original,
 		int percent,
-		int maxVotes) {
-	if (!_owner->showVotes()) {
+		int maxVotes,
+		bool showPercent) {
+	if (!_owner->showVotes() || !showPercent) {
 		answer.votesPercent = 0;
 		answer.votesPercentString.clear();
 		answer.votesPercentWidth = 0;
@@ -2875,7 +2877,11 @@ void Poll::Options::updateAnswerVotes() {
 		|| _owner->_poll->answers.empty()) {
 		return;
 	}
-	const auto totalVotes = std::max(1, _owner->_poll->totalVoters);
+	const auto totalVotes = _owner->_poll->totalVoters;
+	const auto showPercent = (totalVotes > 0)
+		&& ranges::all_of(_owner->_poll->answers, [=](const PollAnswer &a) {
+			return a.votes <= totalVotes;
+		});
 	const auto maxVotes = std::max(1, ranges::max_element(
 		_owner->_poll->answers,
 		ranges::less(),
@@ -2893,10 +2899,12 @@ void Poll::Options::updateAnswerVotes() {
 		) | ranges::views::transform(&PollAnswer::votes),
 		ranges::begin(VotesStorage));
 
-	CountNicePercent(
-		gsl::make_span(VotesStorage).subspan(0, count),
-		totalVotes,
-		gsl::make_span(PercentsStorage).subspan(0, count));
+	if (showPercent) {
+		CountNicePercent(
+			gsl::make_span(VotesStorage).subspan(0, count),
+			totalVotes,
+			gsl::make_span(PercentsStorage).subspan(0, count));
+	}
 
 	for (auto &answer : _answers) {
 		const auto i = ranges::find(
@@ -2909,7 +2917,8 @@ void Poll::Options::updateAnswerVotes() {
 			answer,
 			*i,
 			PercentsStorage[index],
-			maxVotes);
+			maxVotes,
+			showPercent);
 	}
 }