Nomarchy/modules/home/rofi.nix

# rofi (2.0, native Wayland on 26.05) — launcher + dmenu renderer for
# the menu system, themed from theme-state.json. rofi's .rasi is far more
# expressive than a flat scheme, so the generated theme styles each
# element (accent border, highlighted selection, rounded inputbar); a
# themes/<slug>/rofi.rasi whole-swap replaces it entirely.
#
# Home of nomarchy-menu, the dispatcher all menu modules hang off.
{ config, lib, pkgs, ... }:

let
  cfg = config.nomarchy;
  t = cfg.theme;
  c = t.colors;
  inherit (config.lib.formats.rasi) mkLiteral;

  px = n: mkLiteral "${toString n}px";

  # Per-theme override probe (same convention as waybar.css).
  rasiOverride = cfg.themesDir + "/${t.slug}/rofi.rasi";
  hasRasiOverride = builtins.pathExists rasiOverride;

  nomarchy-menu = pkgs.writeShellScriptBin "nomarchy-menu" ''
    # Nomarchy menu dispatcher — thin presentation layer over
    # `rofi -dmenu`; actions delegate to nomarchy-theme-sync, systemctl,
    # hyprctl and friends. Icons are nf-md glyphs (Pango falls back to a
    # Nerd Font for them). `nomarchy-menu` with no argument shows the
    # module picker.

    urlencode() {
      local s="$1" out="" ch i
      for ((i = 0; i < ''${#s}; i++)); do
        ch=''${s:i:1}
        case "$ch" in
          [a-zA-Z0-9.~_-]) out+="$ch" ;;
          ' ') out+="+" ;;
          *) printf -v ch '%%%02X' "'$ch"; out+="$ch" ;;
        esac
      done
      printf '%s' "$out"
    }

    case "''${1:-}" in
      power)
        choice=$(printf '%s\n' \
          "󰌾  Lock" \
          "󰍃  Logout" \
          "󰤄  Suspend" \
          "󰒲  Hibernate" \
          "󰜉  Reboot" \
          "󰐥  Shutdown" \
          | rofi -dmenu -p power) || exit 0
        case "$choice" in
          *Lock)      loginctl lock-session ;;
          *Logout)    hyprctl dispatch exit ;;
          *Suspend)   systemctl suspend ;;
          *Hibernate) systemctl hibernate ;;
          *Reboot)    systemctl reboot ;;
          *Shutdown)  systemctl poweroff ;;
        esac ;;

      theme)
        choice=$(nomarchy-theme-sync list | rofi -dmenu -p theme) || exit 0
        [ -n "$choice" ] && exec nomarchy-theme-sync apply "$choice" ;;

      clipboard)
        sel=$(cliphist list | rofi -dmenu -p clip) || exit 0
        printf '%s' "$sel" | cliphist decode | wl-copy ;;

      calc)
        expr=$(rofi -dmenu -p "= " < /dev/null) || exit 0
        [ -n "$expr" ] || exit 0
        result=$(qalc -t -- "$expr" 2>&1 | tail -n 1)
        choice=$(printf '%s\n' "󰆏  Copy result" "󰃬  New calculation" \
          | rofi -dmenu -p "= " -mesg "$expr = $result") || exit 0
        case "$choice" in
          *Copy*) printf '%s' "$result" | wl-copy ;;
          *New*)  exec "$0" calc ;;
        esac ;;

      files)
        sel=$(fd . "$HOME" --type f --hidden --exclude .git --exclude .cache 2>/dev/null \
          | head -n 50000 \
          | sed "s|^$HOME/||" \
          | rofi -dmenu -p file) || exit 0
        [ -n "$sel" ] && exec xdg-open "$HOME/$sel" ;;

      web)
        q=$(rofi -dmenu -p search < /dev/null) || exit 0
        [ -n "$q" ] || exit 0
        exec xdg-open "https://duckduckgo.com/?q=$(urlencode "$q")" ;;

      "")
        choice=$(printf '%s\n' \
          "󰀻  Apps" \
          "󰏘  Theme" \
          "󰅌  Clipboard" \
          "󰃬  Calculator" \
          "󰈞  Files" \
          "󰖟  Web search" \
          "󰐥  Power" \
          | rofi -dmenu -p menu) || exit 0
        case "$choice" in
          *Apps*)      exec rofi -show drun ;;
          *Theme*)     exec "$0" theme ;;
          *Clipboard*) exec "$0" clipboard ;;
          *Calc*)      exec "$0" calc ;;
          *Files*)     exec "$0" files ;;
          *Web*)       exec "$0" web ;;
          *Power*)     exec "$0" power ;;
        esac ;;

      *)
        echo "usage: nomarchy-menu [power|theme|clipboard|calc|files|web]" >&2
        exit 64 ;;
    esac
  '';
in
{
  config = lib.mkIf cfg.rofi.enable {
    home.packages = [
      nomarchy-menu
      pkgs.libqalculate # qalc, the calc module's engine
      pkgs.fd           # files module
      pkgs.xdg-utils    # xdg-open for files/web
    ];

    programs.rofi = {
      enable = true;
      terminal = cfg.terminal;
      font = "${t.fonts.ui} 12";

      extraConfig = {
        modi = "drun,run";
        show-icons = true;          # app icons via the theme's icon set
        icon-theme = t.iconTheme;   # resolved in theme.nix (Papirus-*/per-theme)
        drun-display-format = "{name}";
        display-drun = "apps";
        display-run = "run";
      };

      # Whole-swap themes bring their own rofi.rasi; otherwise the theme
      # is generated from the palette.
      theme =
        if hasRasiOverride then rasiOverride
        else {
          "*" = {
            bg = mkLiteral c.base;
            fg = mkLiteral c.text;
            dim = mkLiteral c.subtext;
            surface = mkLiteral c.surface;
            accent = mkLiteral c.accent;

            background-color = mkLiteral "transparent";
            text-color = mkLiteral "@fg";
            margin = 0;
            padding = 0;
            spacing = 0;
          };

          "window" = {
            background-color = mkLiteral "@bg";
            border = px t.ui.borderSize;
            border-color = mkLiteral "@accent";
            border-radius = px t.ui.rounding;
            width = mkLiteral "40%";
            padding = px 8;
          };

          "mainbox" = {
            children = map mkLiteral [ "inputbar" "message" "listview" ];
          };

          "inputbar" = {
            background-color = mkLiteral "@surface";
            border-radius = px t.ui.rounding;
            padding = mkLiteral "8px 12px";
            spacing = px 8;
            children = map mkLiteral [ "prompt" "entry" ];
          };
          "prompt" = { text-color = mkLiteral "@accent"; };
          "entry" = {
            placeholder = "Search…";
            placeholder-color = mkLiteral "@dim";
          };

          "listview" = {
            lines = 8;
            columns = 1;
            dynamic = true;
            scrollbar = false;
            spacing = px 2;
            padding = mkLiteral "8px 0px 0px 0px";
          };

          "element" = {
            padding = mkLiteral "8px 12px";
            border-radius = px t.ui.rounding;
            spacing = px 8;
          };
          "element selected" = {
            background-color = mkLiteral "@accent";
            text-color = mkLiteral "@bg";
          };
          "element-icon" = {
            background-color = mkLiteral "transparent";
            size = mkLiteral "1em";
          };
          "element-text" = {
            background-color = mkLiteral "transparent";
            text-color = mkLiteral "inherit";
          };

          "message" = { padding = mkLiteral "8px 0px 0px 0px"; };
          "textbox" = {
            background-color = mkLiteral "@surface";
            text-color = mkLiteral "@fg";
            border-radius = px t.ui.rounding;
            padding = mkLiteral "8px 12px";
          };
        };
    };
  };
}