From 8fc038e59b676d42910715633be5695208148bab Mon Sep 17 00:00:00 2001
From: ZacharyZcR <zacharyzcr1984@gmail.com>
Date: Tue, 13 Jan 2026 13:58:13 +0800
Subject: [PATCH] feat: add Ctrl+Alt key remapping for browser-blocked
 shortcuts (#501)
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Browsers intercept Ctrl+W/T/N/Q, making them unusable in terminal.
This adds Ctrl+Alt+<key> as an alternative that sends Ctrl+<key>.

- Ctrl+Alt+W → Ctrl+W (nano search, delete word)
- Ctrl+Alt+T → Ctrl+T (transpose chars)
- Ctrl+Alt+N → Ctrl+N (next line)
- Ctrl+Alt+Q → Ctrl+Q (XON flow control)

Fixes Termix-SSH/Support#407
---
 .../apps/features/terminal/Terminal.tsx        | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/ui/desktop/apps/features/terminal/Terminal.tsx b/src/ui/desktop/apps/features/terminal/Terminal.tsx
index dcee59c4..89c19b00 100644
--- a/src/ui/desktop/apps/features/terminal/Terminal.tsx
+++ b/src/ui/desktop/apps/features/terminal/Terminal.tsx
@@ -1349,6 +1349,24 @@ export const Terminal = forwardRef<TerminalHandle, SSHTerminalProps>(
           return true;
         }
 
+        // Ctrl+Alt+<key> → Ctrl+<key> remapping for browser-blocked shortcuts
+        // Browsers intercept Ctrl+W/T/N/Q, so we use Ctrl+Alt as an alternative
+        if (e.ctrlKey && e.altKey && !e.metaKey && !e.shiftKey) {
+          const key = e.key.toLowerCase();
+          const blockedKeys = ["w", "t", "n", "q"];
+          if (blockedKeys.includes(key)) {
+            e.preventDefault();
+            e.stopPropagation();
+            const ctrlCode = key.charCodeAt(0) - 96;
+            if (webSocketRef.current?.readyState === 1) {
+              webSocketRef.current.send(
+                JSON.stringify({ type: "input", data: String.fromCharCode(ctrlCode) }),
+              );
+            }
+            return false;
+          }
+        }
+
         if (showAutocompleteRef.current) {
           if (e.key === "Escape") {
             e.preventDefault();