From 36513416976c0a952f61364c54a03dc3416155cb Mon Sep 17 00:00:00 2001
From: Brues <5278969+brues-code@users.noreply.github.com>
Date: Sun, 1 Nov 2026 17:22:06 -0600
Subject: [PATCH] Scroll every chat copy box to the newest line when it opens

The caret at the end scrolled only the box with the focus, and each
visible chat frame's box takes the focus as it opens, so only the last
one shown reached the bottom. Even that one stopped short: 1.12's
OnCursorChanged has no input context, so ScrollCursorIntoView lets the
last line clip.

Each box now measures its scroll box and scrolls it to the end on the
next frame, after the edit box has laid the new text out.
---
 modules/chatcopy.lua | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/modules/chatcopy.lua b/modules/chatcopy.lua
index 13de51f6..3acd8458 100644
--- a/modules/chatcopy.lua
+++ b/modules/chatcopy.lua
@@ -85,10 +85,16 @@ pfUI:RegisterModule("chatcopy", function ()
 
         scroll:SetFont(frame:GetFont())
         scroll:SetText(text)
-
-        -- the cursor at the end scrolls the box to the newest line
         scroll:SetFocus()
         scroll:SetCursorPosition(#text)
+
+        -- the edit box lays the text out in this frame's update, so scroll to
+        -- the newest line after it; the caret only scrolls the focused box
+        RunNextFrame(function()
+          local scrollBox = scroll:GetScrollBox()
+          scrollBox:FullUpdate(ScrollBoxConstants.UpdateImmediately)
+          scrollBox:ScrollToEnd(ScrollBoxConstants.NoScrollInterpolation)
+        end)
       end)
 
       frame.scroll = scroll