abstract screenshare selection

common/portals.nix

@@ -12,6 +12,15 @@ in
         xdg-desktop-portal-kde
         xdg-desktop-portal-gtk
       ];
+
+      wlr.settings = lib.mapAttrs'
+        (name: value: lib.nameValuePair ("screencast_" + name) {
+          output_name = value.id;
+          max_fps = value.fps;
+          chooser_type = "simple";
+          chooser_cmd = "${pkgs.slurp}/bin/slurp -f %o -or";
+        })
+        cfg.screens;
     };
 
     environment.sessionVariables = {

common/sway.nix

@@ -37,6 +37,12 @@ in
       text = lib.strings.concatLines (
         (build_conf cfg.sway.config)
         ++ lib.optional cfg.sway.bar.enable bar_config
+        ++ (lib.mapAttrsToList
+          (name: value:
+            "output ${value.id} mode ${value.mode}@${toString value.fps}Hz"
+            + (lib.optionalString (value.pos != null) " position ${value.pos}")
+          )
+          cfg.screens)
       );
 
       sway_conf = pkgs.writeText "sway.conf" text;

load_common.nix

@@ -17,6 +17,34 @@ let
     };
   });
 
+  screen = types.submodule {
+    options = {
+      fps = mkOption {
+        type = types.int;
+        default = 60;
+        description = "max framerate of screen";
+      };
+
+      mode = mkOption {
+        type = types.nonEmptyStr;
+        default = "1920x1080";
+        description = "pixel format of the screen";
+      };
+
+      id = mkOption {
+        type = types.nonEmptyStr;
+        description = "ID of the screen";
+      };
+
+      pos = mkOption {
+        type = types.nullOr types.nonEmptyStr;
+        default = null;
+        example = "0,0";
+        description = "position where to place the screen";
+      };
+    };
+  };
+
   sway_conf = types.submodule ({ config, ... }: rec {
     options = {
       keybinds = mkOption {
@@ -135,6 +163,12 @@ in
       };
     };
 
+    screens = mkOption {
+      type = types.attrsOf screen;
+      default = { };
+      description = "Screens to initialize";
+    };
+
     sway = {
       enable = mkEnableOption "grimm-sway";
 

specific/grimm-nixos-laptop/configuration.nix

@@ -2,7 +2,6 @@
   imports = [
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
-    ./screenshare-select.nix
   ];
 
   age.identityPaths = [ "/home/grimmauld/.ssh/id_rsa" ];

specific/grimm-nixos-laptop/hardware-configuration.nix

@@ -32,6 +32,18 @@
     size = 48 * 1024;
   }];
 
+  grimmShared.screens = {
+    external = {
+      id = "HDMI-A-1";
+      pos = "0,0";
+    };
+
+    internal = {
+      id = "eDP-1";
+      fps = 144;
+    };
+  };
+
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   powerManagement.cpuFreqGovernor = lib.mkDefault "performance";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

specific/grimm-nixos-laptop/screenshare-select.nix

@@ -1,17 +0,0 @@
-{ pkgs, ... }:
-{
-  xdg.portal.wlr.settings = {
-    screencastExternal = {
-      output_name = "HDMI-A-1";
-      max_fps = 60;
-      chooser_type = "simple";
-      chooser_cmd = "${pkgs.slurp}/bin/slurp -f %o -or";
-    };
-    screencastInternal = {
-      output_name = "eDP-1";
-      max_fps = 144;
-      chooser_type = "simple";
-      chooser_cmd = "${pkgs.slurp}/bin/slurp -f %o -or";
-    };
-  };
-}

sway/sway-conf.nix

@@ -148,8 +148,7 @@
       ];
       extraConfig = ''
         output * bg ${./wallpapers/switzerland.jpg} fill
-        output HDMI-A-1 mode 1920x1080@60Hz position 0,0
-        for_window [app_id="lxqt-policykit-agent"] floating enable;
+
         floating_modifier $mod normal
 
         input type:keyboard xkb_numlock enabled
@@ -172,6 +171,7 @@
 
         for_window [app_id="swaymux"] floating enable
         for_window [app_id="rmenu"] floating enable
+        for_window [app_id="lxqt-policykit-agent"] floating enable;
       '';
 
       modes.resize.keybinds = {