Center TUI copy, shrink window to 520x400 via own app-id windowrule

.desktop now uses --app-id=omatether; install writes a marker-delimited
float/center/size rule block into ~/.config/hypr/windows.conf (backed up
once, removed on uninstall). Dropped udevadm trigger from install — it
wedges an already-connected iPhone (device unconfigured); targeted
usbmuxd restart instead.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

README.md

@@ -7,7 +7,7 @@ the phone's Wi-Fi if it's on one, cellular otherwise. Works headless too.
 ## TUI
 
 Run `omatether.sh` with no arguments (or launch **iPhone Tether** from Walker —
-it opens as a floating window). The dashboard shows phone / tether / route
+it opens as a small floating window). The dashboard shows phone / tether / route
 state live and offers only the actions that make sense right now:
 
 ```

omatether.sh

@@ -12,6 +12,7 @@ set -euo pipefail
 
 NETFILE="/etc/systemd/network/10-iphone-tether.network"
 DESKTOP_FILE="$HOME/.local/share/applications/omatether.desktop"
+WINDOWS_CONF="$HOME/.config/hypr/windows.conf"
 
 # Route metrics: Omarchy ships ethernet=100, wifi=600, wwan=700.
 METRIC_FALLBACK=750   # tether used only when nothing better is up (default)
@@ -110,6 +111,31 @@ reload_networkd() {
   fi
 }
 
+# Small centered floating window for the TUI (user-level Hyprland rule;
+# remove-then-append so re-installs stay idempotent).
+install_windowrules() {
+  [[ -f $WINDOWS_CONF ]] || return 0   # not a Hyprland/Omarchy box — skip
+  if ! grep -q 'omatether windowrules begin' "$WINDOWS_CONF"; then
+    cp "$WINDOWS_CONF" "$WINDOWS_CONF.bak.$(date +%s)"
+  fi
+  sed -i '/>>> omatether windowrules begin/,/<<< omatether windowrules end/d' "$WINDOWS_CONF"
+  cat >> "$WINDOWS_CONF" <<'EOF'
+# >>> omatether windowrules begin
+# omatether — small floating window, centered.
+windowrule = float on,  match:class ^(omatether)$
+windowrule = center on, match:class ^(omatether)$
+windowrule = size 520 400, match:class ^(omatether)$
+# <<< omatether windowrules end
+EOF
+  hyprctl reload >/dev/null 2>&1 || true
+}
+
+remove_windowrules() {
+  [[ -f $WINDOWS_CONF ]] || return 0
+  sed -i '/>>> omatether windowrules begin/,/<<< omatether windowrules end/d' "$WINDOWS_CONF"
+  hyprctl reload >/dev/null 2>&1 || true
+}
+
 # --------------------------------------------------------- CLI commands ----
 
 cmd_install() {
@@ -121,7 +147,8 @@ cmd_install() {
   reload_networkd
   ok "networkd profile written: $NETFILE (fallback priority, metric $METRIC_FALLBACK)"
 
-  # Floating TUI launcher for Walker (Omarchy TUI.float pattern).
+  # Floating TUI launcher for Walker. Uses a dedicated app-id (rather than
+  # Omarchy's generic TUI.float) so our own windowrule can size it smaller.
   local self
   self=$(realpath "$0")
   mkdir -p "$(dirname "$DESKTOP_FILE")"
@@ -129,17 +156,22 @@ cmd_install() {
 [Desktop Entry]
 Name=iPhone Tether
 Comment=Use an iPhone's internet over USB
-Exec=xdg-terminal-exec --app-id=TUI.float -e $self
+Exec=xdg-terminal-exec --app-id=omatether -e $self
 Icon=phone
 Terminal=false
 Type=Application
 Categories=Network;
 EOF
   systemctl --user restart elephant.service 2>/dev/null || true
-  ok "Walker launcher installed: 'iPhone Tether' (floating window)"
+  install_windowrules
+  ok "Walker launcher installed: 'iPhone Tether' (small floating window)"
 
-  # Nudge udev in case the phone was already plugged in before install.
+  # If the phone was plugged in before usbmuxd existed it won't be seen yet;
-  as_root udevadm trigger -s usb --action=add 2>/dev/null || true
+  # restart usbmuxd to rescan. (Do NOT `udevadm trigger` — re-firing add
+  # events on a connected iPhone wedges it: "device unconfigured".)
+  if phone_on_usb && ! phone_visible; then
+    revive_usbmuxd
+  fi
 
   say ""
   say "Run '$0' (no arguments) for the TUI, or '$0 pair' to pair now."
@@ -251,9 +283,10 @@ cmd_priority() {
 cmd_uninstall() {
   as_root rm -f "$NETFILE"
   rm -f "$DESKTOP_FILE"
+  remove_windowrules
   as_root networkctl reload
   systemctl --user restart elephant.service 2>/dev/null || true
-  ok "Removed $NETFILE and the Walker launcher (usbmuxd/libimobiledevice left installed)"
+  ok "Removed $NETFILE, the Walker launcher and windowrules (usbmuxd/libimobiledevice left installed)"
 }
 
 # ----------------------------------------------------------------- TUI -----
@@ -272,9 +305,29 @@ poll_terminal_size() {
   done
 }
 
+# Visible length of a string (ANSI codes stripped; multibyte-aware).
+vis_len() {
+  local s
+  s=$(printf '%s' "$1" | sed 's/\x1b\[[0-9;]*m//g')
+  printf '%s' "${#s}"
+}
+
+# Print a line horizontally centered in the terminal. Uses $TW (measured
+# once per redraw) — tput inside redirected loops can misread the width.
+center_line() {
+  local pad
+  pad=$(( (${TW:-80} - $(vis_len "$1")) / 2 ))
+  (( pad < 0 )) && pad=0
+  printf '%*s%s\n' "$pad" '' "$1"
+}
+
 tui_header() {
-  gum style --border rounded --padding "0 2" --margin "0 0 1 0" \
+  local line
-    --border-foreground 212 --bold "  OMATETHER" "${DIM}iPhone USB internet${RST}"
+  while IFS= read -r line; do
+    center_line "$line"
+  done < <(gum style --border rounded --padding "0 2" --align center \
+             --border-foreground 212 --bold "  OMATETHER" "${DIM}iPhone USB internet${RST}")
+  echo
 }
 
 tui_connect() {
@@ -340,6 +393,7 @@ cmd_tui() {
   poll_terminal_size
 
   while true; do
+    TW=$(tput cols 2>/dev/null || echo 80)
     clear
     tui_header
 
@@ -382,7 +436,10 @@ cmd_tui() {
       uplink_line="${RED}󰈂${RST}  No internet route"
     fi
 
-    printf '%s\n%s\n%s\n\n' "$phone_line" "$tether_line" "$uplink_line"
+    center_line "$phone_line"
+    center_line "$tether_line"
+    center_line "$uplink_line"
+    echo
 
     # --- context-aware menu ---
     local -a menu=()
@@ -398,8 +455,17 @@ cmd_tui() {
     fi
     menu+=("Status (full check)" "Refresh" "Quit")
 
+    # Center the menu as a block: pad every label by a common offset
+    # (2 extra cols account for gum's cursor prefix).
+    local maxlen=0 mpad m
+    for m in "${menu[@]}"; do (( ${#m} > maxlen )) && maxlen=${#m}; done
+    mpad=$(( (TW - maxlen) / 2 - 2 )); (( mpad < 0 )) && mpad=0
+    local -a pmenu=()
+    for m in "${menu[@]}"; do pmenu+=("$(printf '%*s%s' "$mpad" '' "$m")"); done
+
     local choice
-    choice=$(gum choose --header "What do you want to do?" "${menu[@]}") || break
+    choice=$(gum choose --header "$(printf '%*s%s' "$((mpad + 2))" '' 'What do you want to do?')" "${pmenu[@]}") || break
+    choice=${choice#"${choice%%[![:space:]]*}"}   # trim the centering pad
     case $choice in
       "Install tethering support")      cmd_install; gum input --placeholder "Press Enter…" >/dev/null || true ;;
       "Connect phone")                  tui_connect ;;