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nixos/Droidnix/assets/traveldroid/Wallpapers/scripts/workspace-wallpapers.sh
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2026-04-01 21:17:58 +02:00

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#!/usr/bin/env bash
set -euo pipefail
# -------------------------------
# Config
# -------------------------------
HOME_DIR="$HOME"
PICTURES_DIR="$HOME_DIR/Wallpapers/pictures"
STATE_DIR="$HOME_DIR/.cache/hypr-wallpapers"
NAMESPACE="main"
CURRENTPATH=/run/current-system/sw/bin
# Required environment variables
: "${XDG_RUNTIME_DIR:?XDG_RUNTIME_DIR is not set}"
: "${HYPRLAND_INSTANCE_SIGNATURE:?HYPRLAND_INSTANCE_SIGNATURE is not set}"
: "${WAYLAND_DISPLAY:?WAYLAND_DISPLAY is not set}"
IPC_SOCKET="$XDG_RUNTIME_DIR/hypr/$HYPRLAND_INSTANCE_SIGNATURE/.socket2.sock"
# -------------------------------
# Wait for Hyprland IPC socket
# -------------------------------
until [ -S "$IPC_SOCKET" ]; do
echo "Waiting for Hyprland IPC socket..."
sleep 1
done
# -------------------------------
# Start swww-daemon if not already running
# -------------------------------
SWWW_SOCKET="$XDG_RUNTIME_DIR/swww/$NAMESPACE.sock"
if [ ! -S "$SWWW_SOCKET" ]; then
if ! pgrep -f "swww-daemon.*--namespace $NAMESPACE" >/dev/null; then
echo "Starting swww-daemon for namespace $NAMESPACE..."
"$CURRENTPATH/swww-daemon" --namespace "$NAMESPACE" &
sleep 0.5
else
echo "swww-daemon already running for namespace $NAMESPACE"
fi
fi
# -------------------------------
# Load wallpapers
# -------------------------------
mapfile -t IMAGES < <(find "$PICTURES_DIR" -type f \( -iname '*.png' -o -iname '*.jpg' -o -iname '*.jpeg' \))
[ "${#IMAGES[@]}" -eq 0 ] && { echo "No wallpapers found in $PICTURES_DIR"; exit 1; }
mkdir -p "$STATE_DIR"
get_wallpaper() {
local ws="$1"
local mon="$2"
local key="$STATE_DIR/ws${ws}_mon${mon}.txt"
if [ -f "$key" ]; then
cat "$key"
else
local image="${IMAGES[RANDOM % ${#IMAGES[@]}]}"
echo "$image" > "$key"
echo "$image"
fi
}
# -------------------------------
# Subscribe to workspace events
# -------------------------------
{
echo '{"subscribe":["workspace"]}'
"$CURRENTPATH/socat" - UNIX-CONNECT:"$IPC_SOCKET"
} | while read -r line; do
[[ "$line" =~ ^\{ ]] || continue
WS_NUM=$("$CURRENTPATH/jq" -r 'select(.type=="workspace" and .active==true) | .workspace' <<< "$line" 2>/dev/null || true)
MONITOR=$("$CURRENTPATH/jq" -r '.monitor' <<< "$line" 2>/dev/null || true)
if [ -n "$WS_NUM" ] && [ -n "$MONITOR" ]; then
WALLPAPER=$(get_wallpaper "$WS_NUM" "$MONITOR")
echo "Setting wallpaper for workspace $WS_NUM on monitor $MONITOR: $WALLPAPER"
"$CURRENTPATH/swww" img "$WALLPAPER" --resize stretch --namespace "$WS_NUM"
fi
done