From 63757a77a54a108c56d9538c229daa15c81c1b7b Mon Sep 17 00:00:00 2001
From: jkh675 <rluo2018@gmail.com>
Date: Mon, 29 Jul 2024 13:39:08 +0800
Subject: [PATCH] Extract update background method

---
 osu.Game/Overlays/Chat/ChatLine.cs        | 28 +++++++++++++----------
 osu.Game/Overlays/Chat/DrawableChannel.cs |  4 ++--
 2 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/osu.Game/Overlays/Chat/ChatLine.cs b/osu.Game/Overlays/Chat/ChatLine.cs
index fc43e38239..81b63d3380 100644
--- a/osu.Game/Overlays/Chat/ChatLine.cs
+++ b/osu.Game/Overlays/Chat/ChatLine.cs
@@ -79,18 +79,7 @@ namespace osu.Game.Overlays.Chat
             set
             {
                 alteringBackground = value;
-
-                if (background == null)
-                {
-                    AddInternal(background = new Box
-                    {
-                        BypassAutoSizeAxes = Axes.Both,
-                        RelativeSizeAxes = Axes.Both,
-                        Colour = Color4.White,
-                    });
-                }
-
-                background.Alpha = value ? 0.04f : 0f;
+                updateBackground();
             }
         }
 
@@ -283,5 +272,20 @@ namespace osu.Game.Overlays.Chat
             Color4Extensions.FromHex("812a96"),
             Color4Extensions.FromHex("992861"),
         };
+
+        private void updateBackground()
+        {
+            if (background == null)
+            {
+                AddInternal(background = new Box
+                {
+                    BypassAutoSizeAxes = Axes.Both,
+                    RelativeSizeAxes = Axes.Both,
+                    Colour = Color4.White,
+                });
+            }
+
+            background.Alpha = alteringBackground ? 0.04f : 0f;
+        }
     }
 }
diff --git a/osu.Game/Overlays/Chat/DrawableChannel.cs b/osu.Game/Overlays/Chat/DrawableChannel.cs
index 21af8d7305..b6b89c4201 100644
--- a/osu.Game/Overlays/Chat/DrawableChannel.cs
+++ b/osu.Game/Overlays/Chat/DrawableChannel.cs
@@ -104,7 +104,7 @@ namespace osu.Game.Overlays.Chat
             highlightedMessage.Value = null;
         });
 
-        private void processMessageBackgroundAltering()
+        private void processChatlineBackgroundAltering()
         {
             for (int i = 0; i < ChatLineFlow.Count; i++)
             {
@@ -169,7 +169,7 @@ namespace osu.Game.Overlays.Chat
                 scroll.ScrollToEnd();
 
             processMessageHighlighting();
-            processMessageBackgroundAltering();
+            processChatlineBackgroundAltering();
         });
 
         private void pendingMessageResolved(Message existing, Message updated) => Schedule(() =>