Files
nixos/henrovnix_ok/home/desktop/workspace_wallpaper.nix
T
2026-02-26 21:14:44 +01:00

121 lines
3.4 KiB
Nix

{ config, lib, pkgs, flakeRoot, ... }:
let
repoWallpaperDir = flakeRoot + "/assets/conf/desktop/wallpaper";
userRelRoot = "nixos_conf/wallpaperstuff";
userAbsRoot = "${config.home.homeDirectory}/${userRelRoot}";
picturesDir = "${userAbsRoot}/pictures";
repoWallpapersOnly = lib.cleanSourceWith {
src = repoWallpaperDir;
filter = path: type: true;
};
wsScriptRel = "hypr/scripts/hyprpaper-workspace-1to9.sh";
in
{
home.packages = [ pkgs.hyprpaper pkgs.socat pkgs.jq ];
home.file."${userRelRoot}" = {
source = repoWallpapersOnly;
recursive = true;
};
xdg.configFile."hypr/hyprpaper.conf".text = ''
ipc = true
splash = false
'';
xdg.configFile."${wsScriptRel}" = {
executable = true;
text = ''
#!/usr/bin/env bash
set -euo pipefail
: "''${XDG_RUNTIME_DIR:?XDG_RUNTIME_DIR not set}"
: "''${HYPRLAND_INSTANCE_SIGNATURE:?HYPRLAND_INSTANCE_SIGNATURE not set}"
SOCK="''${XDG_RUNTIME_DIR}/hypr/''${HYPRLAND_INSTANCE_SIGNATURE}/.socket2.sock"
[[ -S "$SOCK" ]] || { echo "Hyprland socket not found: $SOCK" >&2; exit 1; }
# Allow overriding the pictures dir from argv; default to the Nix-provided one
PICTURES_DIR="''${1:-${picturesDir}}"
FIT_MODE="fill"
FOCUSED_MON=""
pick_wall_for_ws() {
local ws="''${1}"
local f
f="$(ls -1 "''${PICTURES_DIR}/''${ws}."* 2>/dev/null | head -n 1 || true)"
echo "''${f}"
}
apply_wallpaper() {
local mon="''${1}"
local ws="''${2}"
local file
file="$(pick_wall_for_ws "''${ws}")"
[[ -n "''${file}" ]] || return 0
hyprctl hyprpaper wallpaper "''${mon}, ''${file}, ''${FIT_MODE}" >/dev/null
}
FOCUSED_MON="$(hyprctl -j monitors | jq -r '.[] | select(.focused==true) | .name' | head -n 1 || true)"
CUR_WS="$(hyprctl -j activeworkspace | jq -r '.name' | head -n 1 || true)"
CUR_WS="''${CUR_WS%%:*}"
[[ -n "''${FOCUSED_MON}" && -n "''${CUR_WS}" ]] && apply_wallpaper "''${FOCUSED_MON}" "''${CUR_WS}"
handle() {
case "''${1}" in
focusedmon* )
local payload="''${1#*>>}"
FOCUSED_MON="''${payload%%,*}"
;;
workspace* )
local ws="''${1#*>>}"
ws="''${ws%%:*}"
ws="''${ws%% *}"
[[ -n "''${FOCUSED_MON}" && -n "''${ws}" ]] && apply_wallpaper "''${FOCUSED_MON}" "''${ws}"
;;
esac
}
socat -U - UNIX-CONNECT:"''${SOCK}" | while read -r line; do
handle "''${line}" || true
done
'';
};
systemd.user.services.hyprpaper = {
Unit = {
Description = "hyprpaper wallpaper daemon";
PartOf = [ "graphical-session.target" ];
After = [ "graphical-session.target" ];
};
Service = {
ExecStart = "${pkgs.hyprpaper}/bin/hyprpaper";
Restart = "on-failure";
RestartSec = 1;
};
Install = { WantedBy = [ "graphical-session.target" ]; };
};
systemd.user.services.hyprpaper-workspace-wallpapers = {
Unit = {
Description = "Hyprpaper workspace wallpapers (socket2 listener)";
PartOf = [ "graphical-session.target" ];
After = [ "graphical-session.target" "hyprpaper.service" ];
};
Service = {
ExecStart = "${pkgs.bash}/bin/bash ${config.xdg.configHome}/${wsScriptRel} ${picturesDir}";
Restart = "on-failure";
RestartSec = 1;
};
Install = { WantedBy = [ "graphical-session.target" ]; };
};
}