From 0b22e5928ca5e6822fe36becc659355d3575f10c Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Fri, 29 Mar 2024 03:15:13 +0300
Subject: [PATCH] Fixed bottom fade effect for input message fields in compose
 controls.

---
 Telegram/SourceFiles/chat_helpers/message_field.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/chat_helpers/message_field.cpp b/Telegram/SourceFiles/chat_helpers/message_field.cpp
index c5c04a43c..648c5c98c 100644
--- a/Telegram/SourceFiles/chat_helpers/message_field.cpp
+++ b/Telegram/SourceFiles/chat_helpers/message_field.cpp
@@ -505,7 +505,11 @@ void InitMessageFieldFade(
 	}, topFade->lifetime());
 
 	topFade->show();
-	bottomFade->show();
+	bottomFade->showOn(
+	field->scrollTop().value(
+	) | rpl::map([field, descent = field->st().font->descent](int scroll) {
+		return (scroll + descent) < field->scrollTopMax();
+	}) | rpl::distinct_until_changed());
 }
 
 InlineBotQuery ParseInlineBotQuery(