nixos/home/desktop/sway.nix

{
  pkgs,
  lib,
  config,
  ...
}: let
  modifier = config.wayland.windowManager.sway.config.modifier;
  term = config.wayland.windowManager.sway.config.terminal;
  # currently, there is some friction between sway and gtk:
  # https://github.com/swaywm/sway/wiki/GTK-3-settings-on-Wayland
  # the suggested way to set gtk settings is with gsettings
  # for gsettings to work, we need to tell it where the schemas are
  # using the XDG_DATA_DIR environment variable
  # run at the end of sway config
  configure-gtk = pkgs.writeTextFile {
    name = "configure-gtk";
    destination = "/bin/configure-gtk";
    executable = true;
    text = let
      schema = pkgs.gsettings-desktop-schemas;
      datadir = "${schema}/share/gsettings-schemas/${schema.name}";
      gtk-theme = config.gtk.theme.name;
      icon-theme = config.gtk.iconTheme.name;
      cursor-theme = config.gtk.cursorTheme.name;
    in ''
      export XDG_DATA_DIRS=${datadir}:$XDG_DATA_DIRS
      gnome_schema=org.gnome.desktop.interface
      gsettings set $gnome_schema gtk-theme '${gtk-theme}'
      gsettings set $gnome_schema icon-theme '${icon-theme}'
      gsettings set $gnome_schema cursor-theme '${cursor-theme}'
    '';
  };
in {
  imports = [
    ./swaylock.nix
    ./waybar.nix
    ./gtk.nix
    ./dunst.nix
    ./rofi.nix
  ];
  home.packages = with pkgs; [
    configure-gtk
    pipewire
    wireplumber
    wl-clipboard
    swayimg
    brightnessctl
  ];
  programs.rofi.package = pkgs.rofi-wayland;
  wayland.windowManager.sway = {
    enable = true;
    wrapperFeatures.gtk = true;
    xwayland = true;
    extraSessionCommands = ''
      export GDK_BACKEND=wayland,x11
      export QT_QPA_PLATFORM=wayland
      export QT_WAYLAND_DISABLE_WINDOWDECORATION="1"'';
    config = {
      input."*".xkb_layout = "gb";
      fonts = {
        names = ["FiraCode Nerd Font" "FiraCode Nerd Font Mono"];
        size = 12.0;
      };
      gaps = {
        inner = lib.mkDefault 5;
        outer = lib.mkDefault 20;
      };
      bars = [{command = "${pkgs.waybar}/bin/waybar";}];
      assigns = {
        "2" = [{app_id = "firefox";}];
        "3" = [
          {class = "Signal";}
          {app_id = "fractal";}
          {app_id = "discord";}
          {class = "teams-for-linux";}
        ];
        "4" = [{class = "Nxplayer.bin";}];
      };
      floating.criteria = [
        {app_id = "pavucontrol";}
        {app_id = ".blueman-manager-wrapped";}
        {app_id = "otpclient";}
        {app_id = "thunar";}
        {app_id = "^swayimg.*$";}
      ];
      startup = [
        {
          command = "dbus-sway-environment";
          always = true;
        }
        {
          command = "configure-gtk";
          always = true;
        }
        {command = "dunst";}
      ];
      modifier = lib.mkDefault "Mod1";
      terminal = lib.mkDefault "${pkgs.wezterm}/bin/wezterm";
      window.titlebar = false;
      workspaceAutoBackAndForth = true;
      keybindings = lib.mkOptionDefault {
        "${modifier}+Return" = "exec ${term}";
        "${modifier}+space" = "exec ${pkgs.rofi}/bin/rofi -show drun";
        "${modifier}+F1" = "exec ${pkgs.swaylock}/bin/swaylock";
        "${modifier}+w" = "exec ${pkgs.firefox}/bin/firefox";
        "${modifier}+f" = "exec ${pkgs.xfce.thunar}/bin/thunar";
        "${modifier}+p" = "exec powermenu";
      };
      colors = {
        focused = {
          border = "#4c7899";
          background = "#285577";
          text = "#ffffff";
          indicator = "#2e9ef4";
          childBorder = "#285577";
        };
        focusedInactive = {
          border = "#333333";
          background = "#5f676a";
          text = "#ffffff";
          indicator = "#484e50";
          childBorder = "#5f676a";
        };
        unfocused = {
          border = "#333333";
          background = "#222222";
          text = "#888888";
          indicator = "#292d2e";
          childBorder = "#222222";
        };
        urgent = {
          border = "#2f343a";
          background = "#900000";
          text = "#ffffff";
          indicator = "#900000";
          childBorder = "#900000";
        };
        placeholder = {
          border = "#000000";
          background = "#0c0c0c";
          text = "#ffffff";
          indicator = "#000000";
          childBorder = "#0c0c0c";
        };
        background = "#ffffff";
      };
    };
  };
}