feat(wm): add rofi wallpaper launcher and keybindings

dotfiles/config/hypr/hyprland.conf

@@ -523,6 +523,7 @@ bind = $hyper, slash, exec, toggle_taffybar
 bind = $hyper, 9, exec, start_synergy.sh
 bind = $hyper, I, exec, rofi_select_input.hs
 bind = $hyper, O, exec, rofi_paswitch
+bind = $hyper, W, exec, rofi_wallpaper.sh
 bind = $hyper, Y, exec, rofi_agentic_skill
 
 # Reload config

dotfiles/config/xmonad/xmonad.hs

@@ -1100,6 +1100,7 @@ addKeys conf@XConfig { modMask = modm } =
     , ((hyper, xK_space), spawn "skippy-xd")
     , ((hyper, xK_i), spawn "rofi_select_input.hs")
     , ((hyper, xK_o), spawn "rofi_paswitch")
+    , ((hyper, xK_w), spawn "rofi_wallpaper.sh")
     , ((hyper, xK_y), spawn "rofi_agentic_skill")
     , ((modm, xK_e), spawn "emacsclient --eval '(emacs-everywhere)'")
 

dotfiles/lib/bin/rofi_wallpaper.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+wallpaper_dir="${WALLPAPER_DIR:-/var/lib/syncthing/sync/Wallpaper}"
+
+notify() {
+  if command -v notify-send >/dev/null 2>&1; then
+    notify-send "Wallpaper" "$1"
+  else
+    printf '%s\n' "$1" >&2
+  fi
+}
+
+if ! command -v rofi >/dev/null 2>&1; then
+  notify "rofi is not installed"
+  exit 1
+fi
+
+if [ ! -d "$wallpaper_dir" ]; then
+  notify "Wallpaper directory not found: $wallpaper_dir"
+  exit 1
+fi
+
+mapfile -d '' wallpapers < <(
+  find "$wallpaper_dir" -type f \
+    \( -iname '*.png' -o -iname '*.jpg' -o -iname '*.jpeg' -o -iname '*.webp' \) \
+    -print0 | sort -z
+)
+
+if [ "${#wallpapers[@]}" -eq 0 ]; then
+  notify "No wallpapers found in $wallpaper_dir"
+  exit 1
+fi
+
+selection=$(
+  for wallpaper in "${wallpapers[@]}"; do
+    printf '%s\n' "${wallpaper#"$wallpaper_dir"/}"
+  done | rofi -dmenu -i -p "Wallpaper"
+)
+
+if [ -z "${selection:-}" ]; then
+  exit 0
+fi
+
+selected_wallpaper="$wallpaper_dir/$selection"
+if [ ! -f "$selected_wallpaper" ]; then
+  notify "Wallpaper not found: $selected_wallpaper"
+  exit 1
+fi
+
+apply_hyprpaper() {
+  local monitor
+
+  if ! command -v hyprctl >/dev/null 2>&1; then
+    return 1
+  fi
+
+  hyprctl hyprpaper preload "$selected_wallpaper" >/dev/null 2>&1 || true
+
+  if ! hyprctl monitors >/dev/null 2>&1; then
+    return 1
+  fi
+
+  while read -r monitor; do
+    [ -z "$monitor" ] && continue
+    hyprctl hyprpaper wallpaper "$monitor,$selected_wallpaper" >/dev/null 2>&1 || true
+  done < <(hyprctl monitors | awk '/^Monitor / { print $2 }')
+
+  return 0
+}
+
+apply_x11() {
+  if ! command -v feh >/dev/null 2>&1; then
+    return 1
+  fi
+
+  feh --no-fehbg --bg-fill "$selected_wallpaper"
+}
+
+if [ -n "${HYPRLAND_INSTANCE_SIGNATURE:-}" ] || [ "${XDG_CURRENT_DESKTOP:-}" = "Hyprland" ]; then
+  if apply_hyprpaper; then
+    notify "Applied: ${selection}"
+    exit 0
+  fi
+fi
+
+if [ -n "${DISPLAY:-}" ]; then
+  if apply_x11; then
+    notify "Applied: ${selection}"
+    exit 0
+  fi
+fi
+
+notify "Unable to determine wallpaper backend for this session"
+exit 1