nix-dotfiles/hmModules/apps/niri/app.nix

{ inputs, config, lib, pkgs, ... }:

{
  options.niri = {
    enable = lib.mkEnableOption "Enables niri";
    outputs = lib.mkOption { default = {}; };
    mouse.accel = lib.mkOption { default = 0.0; };
  };


  imports = [
    inputs.niri.homeModules.niri
  ];

  config = lib.mkIf config.niri.enable {
    home.packages = [ pkgs.xwayland-satellite ];
    programs.niri = {
      enable = true;
      settings = {
        prefer-no-csd = true;
        screenshot-path = config.xdg.userDirs.pictures + "/screenshots";
        spawn-at-startup = [
          { command = [ "xwayland-satellite" ]; }
        ];
        environment = {
          ELECTRON_OZONE_PLATFORM_HINT = "auto";
          DISPLAY = ":0";
        };
        outputs = config.niri.outputs;
        input = {
          mouse = {
            accel-profile = "flat";
            accel-speed = config.niri.mouse.accel;
          };
        };
        layout = {
          gaps = 3;
          focus-ring.enable = false;
          border = {
            enable = true;
            width = 2;
            active.color = "#F5C2E7";
            inactive.color = "#1E1D2F";
          };
          preset-column-widths = [
            { proportion = 1. / 2.; }
            { proportion = 1.; }
          ];
        };
        animations = {
          slowdown = 0.6;
        };
        binds = with config.lib.niri.actions; {
          "Mod+Return".action= spawn "${config.defaultApps.terminal}";
          "Mod+Shift+Return".action = spawn "${pkgs.fuzzel}/bin/fuzzel";
          "Mod+P".action.screenshot = [];
          "Mod+Shift+P".action.screenshot-window = [];

          "Mod+Tab".action = switch-preset-column-width;
          "Mod+Shift+Q".action = quit;
          "Mod+C".action = close-window;

          "Mod+Space".action = maximize-column;
          "Mod+SHIFT+Space".action = fullscreen-window;

          "Mod+A".action = focus-monitor-left;
          "Mod+F".action = focus-monitor-right;
          "Mod+S".action = move-column-to-monitor-left;
          "Mod+D".action = move-column-to-monitor-right;
          "Mod+SHIFT+A".action = move-workspace-to-monitor-left;
          "Mod+SHIFT+F".action = move-workspace-to-monitor-right;

          "Mod+H".action = focus-column-left;
          "Mod+J".action = focus-window-or-workspace-down;
          "Mod+K".action = focus-window-or-workspace-up;
          "Mod+L".action = focus-column-right;

          "Mod+SHIFT+H".action = consume-or-expel-window-left;
          "Mod+SHIFT+J".action = move-window-down-or-to-workspace-down;
          "Mod+SHIFT+K".action = move-window-up-or-to-workspace-up;
          "Mod+SHIFT+L".action = consume-or-expel-window-right;

          "Mod+BracketLeft".action = set-column-width "-10%";
          "Mod+BracketRight".action = set-column-width "+10%";

          # "MOD+I".action = spawn-scratchpad;
        };
      };
    };
  };
}