nixpkgs/nixos/modules/services/x11/desktop-managers/surf-display.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.xserver.desktopManager.surf-display;
surfDisplayConf = ''
# Surf Kiosk Display: Wrap around surf browser and turn your
# system into a browser screen in KIOSK-mode.
# default download URI for all display screens if not configured individually
DEFAULT_WWW_URI="${cfg.defaultWwwUri}"
# Enforce fixed resolution for all displays (default: not set):
#DEFAULT_RESOLUTION="1920x1080"
# HTTP proxy URL, if needed (default: not set).
#HTTP_PROXY_URL="http://webcache:3128"
# Setting for internal inactivity timer to restart surf-display
# if the user goes inactive/idle.
INACTIVITY_INTERVAL="${builtins.toString cfg.inactivityInterval}"
# log to syslog instead of .xsession-errors
LOG_TO_SYSLOG="yes"
# Launch pulseaudio daemon if not already running.
WITH_PULSEAUDIO="yes"
# screensaver settings, see "man 1 xset" for possible options
SCREENSAVER_SETTINGS="${cfg.screensaverSettings}"
# disable right and middle pointer device click in browser sessions while keeping
# scrolling wheels' functionality intact... (consider "pointer" subcommand on
# xmodmap man page for details).
POINTER_BUTTON_MAP="${cfg.pointerButtonMap}"
# Hide idle mouse pointer.
HIDE_IDLE_POINTER="${cfg.hideIdlePointer}"
${cfg.extraConfig}
'';
in {
options = {
services.xserver.desktopManager.surf-display = {
enable = mkEnableOption "surf-display as a kiosk browser session";
defaultWwwUri = mkOption {
type = types.string;
default = "${pkgs.surf-display}/share/surf-display/empty-page.html";
example = "https://www.example.com/";
description = "Default URI to display.";
};
inactivityInterval = mkOption {
type = types.int;
default = 300;
example = "0";
description = ''
Setting for internal inactivity timer to restart surf-display if the
user goes inactive/idle to get a fresh session for the next user of
the kiosk.
If this value is set to zero, the whole feature of restarting due to
inactivity is disabled.
'';
};
screensaverSettings = mkOption {
type = types.string;
default = "";
description = ''
Screensaver settings, see <literal>man 1 xset</literal> for possible options.
'';
};
pointerButtonMap = mkOption {
type = types.string;
default = "1 0 0 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0";
description = ''
Disable right and middle pointer device click in browser sessions
while keeping scrolling wheels' functionality intact. See pointer
subcommand on <literal>man xmodmap</literal> for details.
'';
};
hideIdlePointer = mkOption {
type = types.string;
default = "yes";
example = "no";
description = "Hide idle mouse pointer.";
};
extraConfig = mkOption {
type = types.string;
default = "";
example = ''
# Enforce fixed resolution for all displays (default: not set):
DEFAULT_RESOLUTION="1920x1080"
# HTTP proxy URL, if needed (default: not set).
HTTP_PROXY_URL="http://webcache:3128"
# Configure individual display screens with host specific parameters:
DISPLAYS['display-host-0']="www_uri=https://www.displayserver.comany.net/display-1/index.html"
DISPLAYS['display-host-1']="www_uri=https://www.displayserver.comany.net/display-2/index.html"
DISPLAYS['display-host-2']="www_uri=https://www.displayserver.comany.net/display-3/index.html|res=1920x1280"
DISPLAYS['display-host-3']="www_uri=https://www.displayserver.comany.net/display-4/index.html"|res=1280x1024"
DISPLAYS['display-host-local-file']="www_uri=file:///usr/share/doc/surf-display/empty-page.html"
'';
description = ''
Extra configuration options to append to <literal>/etc/default/surf-display</literal>.
'';
};
};
};
config = mkIf cfg.enable {
services.xserver.displayManager.extraSessionFilePackages = [
pkgs.surf-display
];
environment.etc."default/surf-display".text = surfDisplayConf;
};
}