fix(keyboard-compat): register terminal arrow-key setup on tty-setup-hook

The arrow-key decodings ran on emacs-startup-hook, but input-decode-map is terminal-local and a daemon's startup hook fires once with no tty. So every emacsclient -t frame opened later missed the decodings, and arrow keys broke in terminal frames. tty-setup-hook runs for each new tty frame, daemon and non-daemon alike. The GUI half already frame-scopes itself. A test pins the hook so a regression back to emacs-startup-hook fails.

1 files changed, 5 insertions, 2 deletions

diff --git a/modules/keyboard-compat.el b/modules/keyboard-compat.el
index 9395b9c8..b72362e7 100644
--- a/modules/keyboard-compat.el
+++ b/modules/keyboard-compat.el
@@ -45,8 +45,11 @@ This runs after init to override any package settings."
     (define-key input-decode-map "\eOC" [right])
     (define-key input-decode-map "\eOD" [left])))
 
-;; Run after init completes to override any package settings
-(add-hook 'emacs-startup-hook #'cj/keyboard-compat-terminal-setup)
+;; `input-decode-map' is terminal-local, and a daemon's `emacs-startup-hook'
+;; runs once with no tty, so a startup-hook registration never reaches the
+;; `emacsclient -t' frames that need it.  `tty-setup-hook' runs for each new
+;; tty frame (daemon and non-daemon alike), which is where the decodings belong.
+(add-hook 'tty-setup-hook #'cj/keyboard-compat-terminal-setup)
 
 ;; Icon-rendering functions return blank on terminal frames so unicode
 ;; artifacts don't show up. The check runs per call against the selected