home/programs/niri: add xwayland-satellite, update layout settings, add colors

home/programs/niri/default.nix

@@ -1,18 +1,34 @@
 {
   inputs,
-  config,
-  pkgs,
+  nixosConfig,
   ...
 }: let
-  schemeData = inputs.basix.schemeData.base16.${config.theme.scheme};
+  colors = inputs.basix.schemeData.base16.${nixosConfig.style.scheme}.palette;
 in {
   imports = [./binds.nix];
   programs.niri = {
     settings = {
-      environment."NIXOS_OZONE_WL" = "1";
+      environment = {
+        "NIXOS_OZONE_WL" = "1";
+        "DISPLAY" = ":0";
+        "_JAVA_AWT_WM_NONREPARENTING" = "1"; # https://wiki.archlinux.org/title/Sway#Java_applications
+      };
+
       prefer-no-csd = true;
 
       window-rules = [
+        {
+          draw-border-with-background = false;
+          geometry-corner-radius = let
+            r = 8.0;
+          in {
+            top-left = r;
+            top-right = r;
+            bottom-left = r;
+            bottom-right = r;
+          };
+          clip-to-geometry = true;
+        }
         {
           matches = [
             {app-id = "foot";}
@@ -21,13 +37,21 @@ in {
         }
       ];
 
-      layout = {
-        border.active = pkgs.lib.rgba schemeData.palette.base0E;
-      };
       input.keyboard.xkb = {
         layout = "us";
         options = "compose:ralt";
       };
+
+      layout = {
+        focus-ring = {
+          enable = true;
+          active.color = "#${colors.base0E}";
+        };
+
+        center-focused-column = "always";
+        always-center-single-column = true;
+      };
+      spawn-at-startup = [{command = ["xwayland-satellite"];}];
     };
   };
 }

lib/default.nix

@@ -3,7 +3,7 @@
   lib,
   ...
 }: let
-  # convert rrggbb hex to rgba(r, g, b, a) CSS format
+  # convert rrggbb hex to rgba(r, g, b, a)
   rgba = c: let
     r = toString (hexToDec (builtins.substring 0 2 c));
     g = toString (hexToDec (builtins.substring 2 2 c));

system/programs/niri/default.nix

@@ -27,4 +27,6 @@
     session required pam_env.so conffile=/etc/pam/environment readenv=0
     session required pam_unix.so
   '';
+
+  environment.systemPackages = [pkgs.xwayland-satellite];
 }