From 28d24615b333afafb24897c6d6e2d3329eb3481d Mon Sep 17 00:00:00 2001
From: Mathis H <matt@nelim.org>
Date: Tue, 12 Mar 2024 22:16:18 +0000
Subject: [PATCH] hyprland: add option for per-input device configs

---
 modules/services/window-managers/hyprland.nix | 24 ++++++++++++++++---
 .../hyprland/simple-config.conf               |  4 ++++
 .../hyprland/simple-config.nix                |  5 ++++
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/modules/services/window-managers/hyprland.nix b/modules/services/window-managers/hyprland.nix
index ec0cf557f..3048d5894 100644
--- a/modules/services/window-managers/hyprland.nix
+++ b/modules/services/window-managers/hyprland.nix
@@ -207,23 +207,41 @@ in {
         let
           indent = concatStrings (replicate indentLevel "  ");
 
+          sections = filterAttrs (n: v: isAttrs v && n != "device") attrs;
+
           mkSection = n: attrs: ''
             ${indent}${n} {
             ${toHyprconf attrs (indentLevel + 1)}${indent}}
           '';
-          sections = filterAttrs (n: v: isAttrs v) attrs;
+
+          mkDeviceCategory = device: ''
+            ${indent}device {
+              name=${device.name}
+            ${
+              toHyprconf (filterAttrs (n: _: "name" != n) device)
+              (indentLevel + 1)
+            }${indent}}
+          '';
+
+          deviceCategory = lib.optionalString (hasAttr "device" attrs)
+            (if isList attrs.device then
+              (concatMapStringsSep "\n" (d: mkDeviceCategory d) attrs.device)
+            else
+              mkDeviceCategory attrs.device);
 
           mkFields = generators.toKeyValue {
             listsAsDuplicateKeys = true;
             inherit indent;
           };
-          allFields = filterAttrs (n: v: !(isAttrs v)) attrs;
+          allFields = filterAttrs (n: v: !(isAttrs v) && n != "device") attrs;
+
           importantFields = filterAttrs (n: _:
             (hasPrefix "$" n) || (hasPrefix "bezier" n)
             || (cfg.sourceFirst && (hasPrefix "source" n))) allFields;
+
           fields = builtins.removeAttrs allFields
             (mapAttrsToList (n: _: n) importantFields);
-        in mkFields importantFields
+        in mkFields importantFields + deviceCategory
         + concatStringsSep "\n" (mapAttrsToList mkSection sections)
         + mkFields fields;
 
diff --git a/tests/modules/services/window-managers/hyprland/simple-config.conf b/tests/modules/services/window-managers/hyprland/simple-config.conf
index 0db599a31..9b15ba32a 100644
--- a/tests/modules/services/window-managers/hyprland/simple-config.conf
+++ b/tests/modules/services/window-managers/hyprland/simple-config.conf
@@ -6,6 +6,10 @@ bezier=smoothOut, 0.36, 0, 0.66, -0.56
 bezier=smoothIn, 0.25, 1, 0.5, 1
 bezier=overshot, 0.4,0.8,0.2,1.2
 source=sourced.conf
+device {
+  name=some:device
+  enable=true
+}
 animations {
   animation=border, 1, 2, smoothIn
   animation=fade, 1, 4, smoothOut
diff --git a/tests/modules/services/window-managers/hyprland/simple-config.nix b/tests/modules/services/window-managers/hyprland/simple-config.nix
index f45bf6b38..e7b11ffe1 100644
--- a/tests/modules/services/window-managers/hyprland/simple-config.nix
+++ b/tests/modules/services/window-managers/hyprland/simple-config.nix
@@ -46,6 +46,11 @@
         "$mod ALT, mouse:272, resizewindow"
       ];
 
+      device = {
+        name = "some:device";
+        enable = true;
+      };
+
       plugin = {
         plugin1 = {
           dummy = "plugin setting";