From 2bea0fdf6d39efebe2b456928052cb16bda89406 Mon Sep 17 00:00:00 2001
From: Scott Nonnenberg <scott@signal.org>
Date: Wed, 8 Apr 2026 02:35:58 +1000
Subject: [PATCH] Input: Truncate too-long pasted text instead of dropping
 entirely

---
 ts/components/Input.dom.tsx | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/ts/components/Input.dom.tsx b/ts/components/Input.dom.tsx
index 1a567bede1..8d51929734 100644
--- a/ts/components/Input.dom.tsx
+++ b/ts/components/Input.dom.tsx
@@ -171,7 +171,7 @@ export const Input = forwardRef<
   const handlePaste = useCallback(
     (event: ClipboardEvent<HTMLInputElement | HTMLTextAreaElement>) => {
       const inputEl = innerRef.current;
-      if (!inputEl || !maxLengthCount || !maxByteCount) {
+      if (!inputEl || (!maxLengthCount && !maxByteCount)) {
         return;
       }
 
@@ -193,13 +193,17 @@ export const Input = forwardRef<
         pastedBytes +
         countBytes(textAfterSelection);
 
-      const lengthDelta = newLengthCount - maxLengthCount;
-      const byteDelta = newByteCount - maxByteCount;
+      const lengthDelta =
+        maxLengthCount > 0 ? newLengthCount - maxLengthCount : 0;
+      const byteDelta = maxByteCount > 0 ? newByteCount - maxByteCount : 0;
+
       if (lengthDelta > 0 || byteDelta > 0) {
         event.preventDefault();
 
-        const newPastedLength = pastedLength - lengthDelta;
-        const newPastedBytes = pastedBytes - byteDelta;
+        const newPastedLength =
+          lengthDelta > 0 ? pastedLength - lengthDelta : pastedLength;
+        const newPastedBytes =
+          byteDelta > 0 ? pastedBytes - byteDelta : pastedBytes;
 
         const truncatedPaste = truncateString(pastedText, {
           byteLimit: newPastedBytes,