feat(hyprland): migrate config to Lua, fix API calls, switch to hyprpaper

- Set configType = "lua" for Hyprland 0.55+ Lua config format
- Rewrite window rules to use hl.window_rule({...}) table API
- Convert keybindings to hl.bind() with _args + mkLuaInline
- Fix dispatchers: hl.dsp.focus (not window.focus), hl.dsp.focus({workspace=}) (not workspace.switch)
- Replace swaybg with services.hyprpaper module for wallpaper
- Fix border colors to use base07 (white) / base03 (grey) with rgba() format
- Reduce default font size from 16 to 12

1 files changed, 126 insertions, 0 deletions

diff --git a/modules/desktop/hyprland/default.nix b/modules/desktop/hyprland/default.nix
new file mode 100644
index 0000000..bd80157
--- /dev/null
+++ b/modules/desktop/hyprland/default.nix
@@ -0,0 +1,126 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  toHyprColor = hex: "rgba(${lib.removePrefix "#" hex}ff)";
+in
+{
+  imports = [
+    ./keybindings.nix
+  ];
+
+  options.desktop.hyprland = {
+    enable = lib.mkEnableOption "Hyprland Wayland compositor";
+  };
+
+  config = lib.mkIf config.desktop.hyprland.enable {
+    wayland.windowManager.hyprland = {
+      enable = true;
+      configType = "lua";
+      xwayland.enable = true;
+      systemd.enable = true;
+
+      settings = {
+        mainMod = {
+          _var = "SUPER";
+        };
+
+        config = {
+          general = with config.scheme.withHashtag; {
+            gaps_in = 5;
+            gaps_out = 5;
+            border_size = 1;
+            col = {
+              active_border = {
+                colors = [ (toHyprColor base07) ];
+                angle = 45;
+              };
+              inactive_border = toHyprColor base03;
+            };
+            layout = "dwindle";
+          };
+
+          decoration = {
+            rounding = 0;
+          };
+
+          input = {
+            follow_mouse = 1;
+            kb_layout = "us";
+          };
+
+          dwindle = {
+            preserve_split = true;
+          };
+        };
+
+        window_rule = [
+          {
+            name = "float-file-explorer";
+            match.class = "^(file-explorer)$";
+            float = true;
+          }
+          {
+            name = "size-file-explorer";
+            match.class = "^(file-explorer)$";
+            size = "1280 720";
+          }
+          {
+            name = "center-file-explorer";
+            match.class = "^(file-explorer)$";
+            center = true;
+          }
+
+          {
+            name = "float-application-launcher";
+            match.class = "^(application-launcher)$";
+            float = true;
+          }
+          {
+            name = "size-application-launcher";
+            match.class = "^(application-launcher)$";
+            size = "800 600";
+          }
+          {
+            name = "center-application-launcher";
+            match.class = "^(application-launcher)$";
+            center = true;
+          }
+
+          {
+            name = "float-keybindings-viewer";
+            match.class = "^(keybindings-viewer)$";
+            float = true;
+          }
+          {
+            name = "size-keybindings-viewer";
+            match.class = "^(keybindings-viewer)$";
+            size = "1280 720";
+          }
+          {
+            name = "center-keybindings-viewer";
+            match.class = "^(keybindings-viewer)$";
+            center = true;
+          }
+        ];
+      };
+    };
+
+    services.hyprpaper = lib.mkIf config.media.feh.enable {
+      enable = true;
+      settings = {
+        preload = [ "${../../../assets/sapling.png}" ];
+        wallpaper = [ ",${../../../assets/sapling.png}" ];
+      };
+    };
+
+    home.packages = with pkgs; [
+      grim
+      slurp
+      wl-clipboard
+    ];
+  };
+}