From cd786bee8914bb139d3f10b89c7c92b8ddfd7563 Mon Sep 17 00:00:00 2001
From: Tw93 <tw93@qq.com>
Date: Thu, 2 Oct 2025 15:26:14 +0800
Subject: [PATCH] fix: extend ESC sequence timeout and avoid accidental quit on
 any key

---
 lib/common.sh | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/lib/common.sh b/lib/common.sh
index 9c02028..b869fa2 100755
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -106,11 +106,11 @@ read_key() {
         '?') echo "HELP" ;;
         $'\x7f'|$'\b') echo "BACKSPACE" ;;  # Support Backspace
         $'\x1b')
-            # Non-blocking, byte-by-byte escape sequence parsing to avoid leaking 'A'/'B'
+            # ESC sequence handling. Allow slightly longer window so we don't misinterpret slow terminals.
             local next third
-            if IFS= read -r -s -n 1 -t 0.02 next 2>/dev/null; then
+            if IFS= read -r -s -n 1 -t 0.15 next 2>/dev/null; then
                 if [[ "$next" == "[" ]]; then
-                    if IFS= read -r -s -n 1 -t 0.02 third 2>/dev/null; then
+                    if IFS= read -r -s -n 1 -t 0.15 third 2>/dev/null; then
                         case "$third" in
                             'A') echo "UP" ;;
                             'B') echo "DOWN" ;;
@@ -119,15 +119,16 @@ read_key() {
                             *) echo "OTHER" ;;
                         esac
                     else
+                        # ESC [ then timeout – treat as OTHER to ignore
                         echo "OTHER"
                     fi
                 else
-                    # ESC followed by something else (e.g. ALT key combos)
+                    # ESC + something (Alt modified key) → ignore as OTHER
                     echo "OTHER"
                 fi
             else
-                # Bare ESC = quit
-                echo "QUIT"
+                # Bare ESC alone: instead of quitting directly, emit OTHER so user doesn't exit accidentally
+                echo "OTHER"
             fi
             ;;
         *) echo "OTHER" ;;