tui: context menu on → / ^O; no F-keys, ^N or ^Enter

→ (where no caret uses it) and ^O (everywhere, also in table cells)
open "Åtgärder": a box at the right edge with every action of the view
and its key. Screens declare their actions with tui_set_actions();
choosing one feeds its key to the widget, so the menu and accelerators
share one path. Function keys, Ctrl+N (now n), Ctrl+Enter and Ctrl+F are
gone and no extended keyboard protocol is enabled, so the TUI works in a
browser terminal; save/post/validate/preview/template/attach are menu
actions. make check rejects F-keys, ^N and ^Enter in clients/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 24 insertions, 1 deletions

diff --git a/scripts/check-consistency.sh b/scripts/check-consistency.sh
index 3ca9b0c..d8054e2 100755
--- a/scripts/check-consistency.sh
+++ b/scripts/check-consistency.sh
@@ -6,7 +6,10 @@
 #      "Command", and vice versa;
 #   2. every error code passed to fail()/failf()/add_error() in src/*.c is
 #      documented in PROTOCOL.md section 5.3, and vice versa (documented but
-#      unused codes are warnings only, some are reserved).
+#      unused codes are warnings only, some are reserved);
+#   3. the TUI uses no key a browser terminal cannot deliver: no function
+#      keys (KEY_F), no Ctrl+N and no Ctrl+Enter (docs/TUI-GUIDELINES.md
+#      "Keys and the web").
 #
 # Run from the repo root:  sh scripts/check-consistency.sh
 # Exits 0 when there is no drift, 1 when drift is found, 2 on parse errors.
@@ -19,6 +22,8 @@
 #   PROTOCOL_MD protocol document,      default $REPO_ROOT/docs/PROTOCOL.md
 #   SRC_GLOB    shell glob of sources scanned for error codes,
 #               default $REPO_ROOT/src/*.c
+#   CLIENTS_GLOB shell glob of TUI sources scanned for keys,
+#               default $REPO_ROOT/clients/*.c
 #
 # Commands deliberately kept out of the PROTOCOL.md tables. Prefer documenting
 # the command in a table over adding it here. Keep sorted, space separated.
@@ -188,6 +193,24 @@ else
     echo "(none)"
 fi
 
+section "keys: F-keys, Ctrl+N or Ctrl+Enter used in the TUI"
+CLIENTS_GLOB=${CLIENTS_GLOB:-"$REPO_ROOT/clients/*.c"}
+: > "$tmp/bad_keys"
+for f in $CLIENTS_GLOB; do
+    [ -f "$f" ] || continue
+    grep -nE 'KEY_F\(|TUI_KEY_CTRL_N|KEY_CTRL_N|CTRL_ENTER' "$f" |
+        sed "s|^|$f:|" >> "$tmp/bad_keys" || true
+done
+if [ -s "$tmp/bad_keys" ]; then
+    while IFS= read -r line; do
+        echo "key: not web-safe: $line"
+        problems=$((problems + 1))
+    done < "$tmp/bad_keys"
+    status=1
+else
+    echo "(none)"
+fi
+
 section "warnings (not failures)"
 if [ -s "$tmp/code_unused" ]; then
     while IFS= read -r code; do