From 7e7a06994fe41ce961755bb98e168e5c4dd630d4 Mon Sep 17 00:00:00 2001
From: teutat3s <10206665+teutat3s@users.noreply.github.com>
Date: Tue, 15 Oct 2024 15:24:04 +0200
Subject: [PATCH] nixos/sway: workaround idle inhibit not working

in Firefox

Source:
https://www.reddit.com/r/swaywm/comments/1dqud2a/how_to_get_firefox_to_inhibit_idle_when_watching/
> Firefox supports the Wayaland inhibit protocol, but it attempts to use the DBus interfaces first. However, the gtk portal has an issue where it returns success even though the wlr portal/sway doesn't have an implementation for the inhibit method, see #465.
---
 nixos/modules/programs/wayland/sway.nix | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/programs/wayland/sway.nix b/nixos/modules/programs/wayland/sway.nix
index 7c5f49ce6d79..1fae6b120074 100644
--- a/nixos/modules/programs/wayland/sway.nix
+++ b/nixos/modules/programs/wayland/sway.nix
@@ -144,7 +144,19 @@ in
       services.displayManager.sessionPackages = lib.optional (cfg.package != null) cfg.package;
 
       # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1050913
-      xdg.portal.config.sway.default = lib.mkDefault [ "wlr" "gtk" ];
+      # https://github.com/emersion/xdg-desktop-portal-wlr/blob/master/contrib/wlroots-portals.conf
+      # https://github.com/emersion/xdg-desktop-portal-wlr/pull/315
+      xdg.portal.config.sway = {
+        # Use xdg-desktop-portal-gtk for every portal interface...
+        default = "gtk";
+        # ... except for the ScreenCast, Screenshot and Secret
+        "org.freedesktop.impl.portal.ScreenCast" = "wlr";
+        "org.freedesktop.impl.portal.Screenshot" = "wlr";
+        # ignore inhibit bc gtk portal always returns as success,
+        # despite sway/the wlr portal not having an implementation,
+        # stopping firefox from using wayland idle-inhibit
+        "org.freedesktop.impl.portal.Inhibit" = "none";
+      };
     }
 
     (import ./wayland-session.nix {