Files
nixos/henrovnix_ok/home/desktop/workspace_wallpaper.nix
T

204 lines
7.3 KiB
Nix

{ config, lib, pkgs, flakeRoot, ... }:
let
# Where your numbered wallpapers live (1.*, 2.*, ... 9.*)
userRelRoot = "nixos_conf/wallpaperstuff";
userAbsRoot = "${config.home.homeDirectory}/${userRelRoot}";
picturesDir = "${userAbsRoot}/pictures";
# (Optional) still sync your repo wallpapers/scripts into ~/nixos_conf/wallpaperstuff
repoWallpaperDir = flakeRoot + "/assets/conf/desktop/wallpaper";
repoWallpapersOnly = lib.cleanSourceWith {
src = repoWallpaperDir;
filter = path: type: true;
};
daemonRel = "hypr/scripts/hyprpaper-ws-daemon.sh";
setRel = "hypr/scripts/set-wallpaper.sh";
in
{
home.packages = [
pkgs.hyprpaper
pkgs.socat
pkgs.jq
pkgs.findutils
pkgs.coreutils
pkgs.gnused
pkgs.gawk
];
# Keep your existing "sync wallpapers into a writable dir" pattern
home.file."${userRelRoot}" = {
source = repoWallpapersOnly;
recursive = true;
};
# Hyprpaper config (hyprpaper reads this; it does NOT need to write it)
# `ipc = true` enables `hyprctl hyprpaper ...` commands. :contentReference[oaicite:0]{index=0}
xdg.configFile."hypr/hyprpaper.conf".text = ''
ipc = true
splash = false
'';
# Workspace wallpaper daemon: listens to socket2, applies w-<id>=... mapping
# Uses workspacev2 to get numeric workspace id. :contentReference[oaicite:1]{index=1}
xdg.configFile."${daemonRel}" = {
executable = true;
text = ''
#!/usr/bin/env bash
set -euo pipefail
: "''${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: $SOCK" >&2; exit 1; }
PICTURES_DIR="''${1:-${picturesDir}}"
FIT_MODE="fill" # hyprpaper fit_mode: contain|cover|tile|fill :contentReference[oaicite:2]{index=2}
HYPR_DIR="''${XDG_CONFIG_HOME:-$HOME/.config}/hypr"
MAP_ROOT="''${HYPR_DIR}/hyprpaper/config"
focused_monitor() {
hyprctl -j monitors | jq -r '.[] | select(.focused==true) | .name' | head -n 1
}
map_file_for_monitor() {
local mon="''${1}"
echo "''${MAP_ROOT}/''${mon}/defaults.conf"
}
ensure_map_file() {
local mon="''${1}"
local f
f="$(map_file_for_monitor "''${mon}")"
mkdir -p "$(dirname "''${f}")"
if [[ ! -f "''${f}" ]]; then
# Seed with 1..9 from picturesDir if present, else empty entries
{
for i in 1 2 3 4 5 6 7 8 9; do
seed="$(ls -1 "''${PICTURES_DIR}/''${i}."* 2>/dev/null | head -n 1 || true)"
echo "w-''${i}= ''${seed}"
done
} > "''${f}"
fi
echo "''${f}"
}
get_wall_for_ws() {
local mon="''${1}"
local wsid="''${2}"
local f key val
f="$(ensure_map_file "''${mon}")"
key="w-''${wsid}"
# accept "w-1=/path" or "w-1= /path"
val="$(awk -F= -v k="''${key}" '$1==k {sub(/^[[:space:]]+/, "", $2); print $2; exit}' "''${f}" || true)"
echo "''${val}"
}
apply_wallpaper() {
local mon="''${1}"
local wsid="''${2}"
local file
file="$(get_wall_for_ws "''${mon}" "''${wsid}")"
[[ -n "''${file}" ]] || return 0
[[ -f "''${file}" ]] || return 0
# Apply via IPC
# hyprpaper wallpaper { monitor path fit_mode } model is per monitor. :contentReference[oaicite:3]{index=3}
hyprctl hyprpaper wallpaper "''${mon}, ''${file}, ''${FIT_MODE}" >/dev/null
}
# Initial apply on startup
mon="$(focused_monitor || true)"
wsid="$(hyprctl -j activeworkspace | jq -r '.id' | head -n 1 || true)"
[[ -n "''${mon}" && -n "''${wsid}" ]] && apply_wallpaper "''${mon}" "''${wsid}"
handle() {
local line="''${1}"
case "''${line}" in
workspacev2* )
# workspacev2>>ID,NAME :contentReference[oaicite:4]{index=4}
local payload wsid
payload="''${line#*>>}"
wsid="''${payload%%,*}"
mon="$(focused_monitor || true)"
[[ -n "''${mon}" && -n "''${wsid}" ]] && apply_wallpaper "''${mon}" "''${wsid}"
;;
focusedmon* )
# focusedmon>>MON,WORKSPACENAME :contentReference[oaicite:5]{index=5}
# When monitor focus changes, re-apply for the active workspace id.
mon="$(focused_monitor || true)"
wsid="$(hyprctl -j activeworkspace | jq -r '.id' | head -n 1 || true)"
[[ -n "''${mon}" && -n "''${wsid}" ]] && apply_wallpaper "''${mon}" "''${wsid}"
;;
esac
}
socat -U - UNIX-CONNECT:"''${SOCK}" | while read -r line; do
handle "''${line}" || true
done
'';
};
# CLI setter in the style of your inspiration script.
# Usage: set-wallpaper.sh <workspace_id> <monitor> [wallpaper]
xdg.configFile."${setRel}" = {
executable = true;
text = ''
#!/usr/bin/env bash
set -euo pipefail
HYPR_DIR="''${XDG_CONFIG_HOME:-$HOME/.config}/hypr"
MAP_ROOT="''${HYPR_DIR}/hyprpaper/config"
usage() {
echo "Usage: set-wallpaper.sh <workspace_id> <monitor> [wallpaper_path]"
}
wsid="''${1:-}"
mon="''${2:-}"
wp="''${3:-}"
[[ -n "''${wsid}" ]] || { usage; exit 1; }
[[ -n "''${mon}" ]] || { usage; exit 1; }
cfg="''${MAP_ROOT}/''${mon}/defaults.conf"
mkdir -p "$(dirname "''${cfg}")"
[[ -f "''${cfg}" ]] || touch "''${cfg}"
if [[ -z "''${wp}" ]]; then
# Random pick from your defaults folder if you want; adjust path if needed:
wp="$(find "$HOME/.config/wallpapers/defaults" -type f 2>/dev/null | shuf -n 1 || true)"
[[ -n "''${wp}" ]] || { echo "No wallpaper found (random). Provide a path as arg 3."; exit 1; }
fi
# Ensure key exists; if not, append it
key="w-''${wsid}"
if ! grep -q "^''${key}=" "''${cfg}"; then
echo "''${key}=" >> "''${cfg}"
fi
# Set mapping
${pkgs.gnused}/bin/sed -i "s|^''${key}=.*|''${key}= ''${wp}|g" "''${cfg}"
# If this monitor is currently showing that workspace id, apply immediately
curws="$(hyprctl -j monitors | jq -r --arg m "''${mon}" '.[] | select(.name==$m) | .activeWorkspace.id' | head -n 1 || true)"
if [[ "''${curws}" == "''${wsid}" ]]; then
hyprctl hyprpaper wallpaper "''${mon}, ''${wp}, fill" >/dev/null
fi
'';
};
# Services
systemd.user.services.hyprpaper = {
Unit = {
Description = "hyprpaper wallpaper daemon";
PartOf = [ "graphical-session.target" ];
After = [ "graphical-session.target" ];
};
Service = {
ExecStart = "${pkgs.hyprpaper}/bin/hyprpaper";
Restart = "on-failure";
RestartSec = 1;
};
Install = { WantedBy = [ "graphical-session.target" ]; };
};
systemd.user.services.hyprpaper-ws-daemon = {
Unit = {
Description = "Workspace->wallpaper mapping daemon (hyprpaper + socket2)";
PartOf = [ "graphical-session.target" ];
After = [ "graphical-session.target" "hyprpaper.service" ];
};
Service = {
ExecStart = "${pkgs.bash}/bin/bash ${config.xdg.configHome}/${daemonRel} ${picturesDir}";
Restart = "on-failure";
RestartSec = 1;
};
Install = { WantedBy = [ "graphical-session.target" ]; };
};
}