nixpkgs/nixos/modules/config/xdg/portal.nix

103 lines
3.2 KiB
Nix

{ config, pkgs, lib, ... }:
let
inherit (lib)
mkEnableOption
mkIf
mkOption
mkRenamedOptionModule
teams
types;
in
{
imports = [
(mkRenamedOptionModule [ "services" "flatpak" "extraPortals" ] [ "xdg" "portal" "extraPortals" ])
({ config, lib, options, ... }:
let
from = [ "xdg" "portal" "gtkUsePortal" ];
fromOpt = lib.getAttrFromPath from options;
in
{
warnings = lib.mkIf config.xdg.portal.gtkUsePortal [
"The option `${lib.showOption from}' defined in ${lib.showFiles fromOpt.files} has been deprecated. Setting the variable globally with `environment.sessionVariables' NixOS option can have unforseen side-effects."
];
}
)
];
meta = {
maintainers = teams.freedesktop.members;
};
options.xdg.portal = {
enable =
mkEnableOption ''<link xlink:href="https://github.com/flatpak/xdg-desktop-portal">xdg desktop integration</link>'' // {
default = false;
};
extraPortals = mkOption {
type = types.listOf types.package;
default = [ ];
description = lib.mdDoc ''
List of additional portals to add to path. Portals allow interaction
with system, like choosing files or taking screenshots. At minimum,
a desktop portal implementation should be listed. GNOME and KDE already
adds `xdg-desktop-portal-gtk`; and
`xdg-desktop-portal-kde` respectively. On other desktop
environments you probably want to add them yourself.
'';
};
gtkUsePortal = mkOption {
type = types.bool;
visible = false;
default = false;
description = ''
Sets environment variable <literal>GTK_USE_PORTAL</literal> to <literal>1</literal>.
This will force GTK-based programs ran outside Flatpak to respect and use XDG Desktop Portals
for features like file chooser but it is an unsupported hack that can easily break things.
Defaults to <literal>false</literal> to respect its opt-in nature.
'';
};
};
config =
let
cfg = config.xdg.portal;
packages = [ pkgs.xdg-desktop-portal ] ++ cfg.extraPortals;
joinedPortals = pkgs.buildEnv {
name = "xdg-portals";
paths = packages;
pathsToLink = [ "/share/xdg-desktop-portal/portals" "/share/applications" ];
};
in
mkIf cfg.enable {
assertions = [
{
assertion = cfg.extraPortals != [ ];
message = "Setting xdg.portal.enable to true requires a portal implementation in xdg.portal.extraPortals such as xdg-desktop-portal-gtk or xdg-desktop-portal-kde.";
}
];
services.dbus.packages = packages;
systemd.packages = packages;
environment = {
# fixes screen sharing on plasmawayland on non-chromium apps by linking
# share/applications/*.desktop files
# see https://github.com/NixOS/nixpkgs/issues/145174
systemPackages = [ joinedPortals ];
pathsToLink = [ "/share/applications" ];
sessionVariables = {
GTK_USE_PORTAL = mkIf cfg.gtkUsePortal "1";
XDG_DESKTOP_PORTAL_DIR = "${joinedPortals}/share/xdg-desktop-portal/portals";
};
};
};
}