From 13f783d0bdee37502a78cb82aeaf6a7dc7faaa4f Mon Sep 17 00:00:00 2001
From: Jeff Connelly <connelly@apple.com>
Date: Fri, 2 Jan 2026 11:00:59 -0800
Subject: [PATCH] fix: send backtab escape sequence on Shift+Tab

Modified the TAB case in handleKeyDown to check for Shift modifier and send
backtab escape sequence (\x1b[Z) instead of regular tab.

https://github.com/coder/ghostty-web/issues/109 Keyboard handling issues: Shift+Tab on macOS
---
 lib/input-handler.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/input-handler.ts b/lib/input-handler.ts
index d362549..0ca319c 100644
--- a/lib/input-handler.ts
+++ b/lib/input-handler.ts
@@ -370,7 +370,11 @@ export class InputHandler {
           simpleOutput = '\r'; // Carriage return
           break;
         case Key.TAB:
-          simpleOutput = '\t'; // Tab
+          if (mods === Mods.SHIFT) {
+            simpleOutput = '\x1b[Z'; // Backtab
+          } else {
+            simpleOutput = '\t'; // Tab
+          }
           break;
         case Key.BACKSPACE:
           simpleOutput = '\x7F'; // DEL (most terminals use 0x7F for backspace)