28allday
154bcc85d4
Walker's env can carry a stale HIS across Hyprland restarts — the variable points at a signature whose socket dir no longer exists, so hyprctl dumps a plain-text "not running" error to stdout and the TUI silently bails. Validate HIS against `$XDG_RUNTIME_DIR/hypr/$HIS/` and fall through to the `hyprctl instances` recovery path when the directory is missing, not only when HIS is unset. Same detection added to the watcher.
584 lines
18 KiB
Bash
584 lines
18 KiB
Bash
#!/usr/bin/env bash
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# ==============================================================================
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# Motion Wallpaper — gum-powered TUI for mpvpaper on Omarchy / Hyprland.
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#
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# Actions:
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# toggle (default) Interactive TUI. If running, offers Stop / Change.
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# start Non-interactive start from saved state (for systemd).
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# stop Stop mpvpaper and restore the normal wallpaper.
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# change Pick a new video while already running.
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# status Print current state (TUI header via gum).
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#
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# Files:
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# ~/.config/motion-wallpaper/state last video + target monitor
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# ~/Videos/Wallpapers/ optional quick-pick library
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# ~/.cache/motion-wallpaper.log runtime log
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# ==============================================================================
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set -euo pipefail
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APP_NAME="Motion Wallpaper"
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STATE_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/motion-wallpaper"
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STATE_FILE="$STATE_DIR/state"
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LOG_DIR="${XDG_CACHE_HOME:-$HOME/.cache}"
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LOG_FILE="$LOG_DIR/motion-wallpaper.log"
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LIBRARY_DIR="$HOME/Videos/Wallpapers"
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# mpv options forwarded via mpvpaper -o. An input-ipc-server socket is opened
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# so our companion watcher can send pause/resume commands when Hyprland
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# reports a fullscreen window (mpvpaper's own -p is unreliable on 0.54.x).
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RUNTIME_DIR="${XDG_RUNTIME_DIR:-/run/user/$(id -u)}"
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MPV_IPC_SOCK="$RUNTIME_DIR/motion-wallpaper-mpv.sock"
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MPV_OPTS="--loop --no-audio --mute=yes --vo=gpu --profile=high-quality --input-ipc-server=$MPV_IPC_SOCK"
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# Catppuccin Mocha-ish accents
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COLOR_ACCENT="#cba6f7"
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COLOR_ERROR="#f38ba8"
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COLOR_OK="#a6e3a1"
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COLOR_MUTED="#6c7086"
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BROWSE_SENTINEL="── Browse filesystem… ──"
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mkdir -p "$STATE_DIR" "$LOG_DIR"
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# ===== helpers ================================================================
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log() {
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printf '[%s] %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$*" >> "$LOG_FILE"
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}
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require_gum() {
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if ! command -v gum >/dev/null 2>&1; then
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echo "ERROR: gum is not installed. Run: sudo pacman -S gum" >&2
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exit 1
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fi
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}
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require_tty() {
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if [ ! -t 0 ] || [ ! -t 1 ]; then
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cat >&2 <<MSG
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$APP_NAME: interactive mode requires a terminal.
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Run from a terminal, or use a non-interactive action:
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$0 start | stop | status
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MSG
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exit 1
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fi
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}
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tui_err() {
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gum style --foreground="$COLOR_ERROR" --bold "ERROR: $1"
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log "ERROR: $1"
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# Hold the terminal open so launcher-spawned windows don't flash away.
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if [ -t 0 ]; then
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gum input --placeholder="Press enter to close…" >/dev/null 2>&1 || true
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fi
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}
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tui_ok() {
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gum style --foreground="$COLOR_OK" "✓ $1"
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log "$1"
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}
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notify() {
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# Fire-and-forget system notification so the user sees results after the
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# TUI terminal closes.
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if command -v notify-send >/dev/null 2>&1; then
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notify-send "$APP_NAME" "$1" || true
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fi
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log "$1"
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}
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load_state() {
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LAST_VIDEO=""
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LAST_TARGET=""
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LAST_DIR=""
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[ -f "$STATE_FILE" ] || return 0
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# Parse KEY="VALUE" lines directly instead of `source`, so a maliciously
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# crafted video path (e.g. containing `";rm -rf …`) can't execute.
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local key val
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while IFS='=' read -r key val; do
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val="${val#\"}"
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val="${val%\"}"
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case "$key" in
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LAST_VIDEO) LAST_VIDEO="$val" ;;
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LAST_TARGET) LAST_TARGET="$val" ;;
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LAST_DIR) LAST_DIR="$val" ;;
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esac
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done < "$STATE_FILE"
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}
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save_state() {
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# $1 video, $2 target, $3 (optional) last dir — defaults to dirname of $1
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# so the filesystem browser re-opens where the user last landed.
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local dir="${3:-$(dirname "$1")}"
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umask 077
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# Atomic write: avoids leaving a truncated file if the process dies mid-cat.
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local tmp="$STATE_FILE.tmp"
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cat > "$tmp" <<STATE
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LAST_VIDEO="$1"
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LAST_TARGET="$2"
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LAST_DIR="$dir"
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STATE
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mv -f "$tmp" "$STATE_FILE"
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}
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is_running() {
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pgrep -x mpvpaper >/dev/null 2>&1
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}
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# ===== autostart (systemd user unit) ==========================================
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autostart_installed() {
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systemctl --user list-unit-files motion-wallpaper.service >/dev/null 2>&1
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}
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autostart_enabled() {
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systemctl --user is-enabled motion-wallpaper.service >/dev/null 2>&1
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}
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autostart_enable() {
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if ! autostart_installed; then
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tui_err "motion-wallpaper.service is not installed. Re-run wallpaper.sh."
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return 1
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fi
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if ! systemctl --user enable motion-wallpaper.service >/dev/null 2>&1; then
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tui_err "Failed to enable autostart (systemctl error)."
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return 1
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fi
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log "autostart enabled"
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return 0
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}
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autostart_disable() {
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systemctl --user disable motion-wallpaper.service >/dev/null 2>&1 || true
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log "autostart disabled"
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}
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show_header() {
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load_state
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local status_line target_line video_line autostart_line
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if is_running; then
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status_line="status: $(gum style --foreground="$COLOR_OK" running)"
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else
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status_line="status: $(gum style --foreground="$COLOR_MUTED" stopped)"
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fi
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target_line="target: ${LAST_TARGET:-$(gum style --foreground="$COLOR_MUTED" --italic '(none)')}"
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video_line="video: ${LAST_VIDEO:-$(gum style --foreground="$COLOR_MUTED" --italic '(none)')}"
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if autostart_enabled; then
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autostart_line="autostart: $(gum style --foreground="$COLOR_OK" enabled)"
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else
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autostart_line="autostart: $(gum style --foreground="$COLOR_MUTED" disabled)"
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fi
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gum style --border=rounded --border-foreground="$COLOR_ACCENT" \
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--padding="1 2" --margin="1 0" \
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"$(gum style --bold --foreground="$COLOR_ACCENT" "◐ $APP_NAME")" \
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"" \
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"$status_line" \
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"$target_line" \
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"$video_line" \
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"$autostart_line"
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}
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# ===== selection ==============================================================
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ensure_hyprland_env() {
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# The TUI can be launched from contexts whose env doesn't carry a valid
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# HYPRLAND_INSTANCE_SIGNATURE. Two failure modes:
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# 1) HIS unset (fresh login shell from a non-graphical context)
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# 2) HIS set but STALE — points to a previous Hyprland session whose
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# socket no longer exists (seen when Walker's env carries the
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# signature from an earlier login). The second case is silent but
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# equally broken: hyprctl dumps a plain-text error on stdout.
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# `hyprctl instances` always reports the *live* signatures, so recover
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# from that. Leave HIS unchanged if we can't find a live instance.
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local his="${HYPRLAND_INSTANCE_SIGNATURE:-}"
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if [ -n "$his" ] && [ -d "$RUNTIME_DIR/hypr/$his" ]; then
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return 0
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fi
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local sig
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sig="$(hyprctl instances 2>/dev/null | awk '/^instance /{sub(/:$/,"",$2); print $2; exit}')"
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if [ -n "$sig" ] && [ "$sig" != "$his" ]; then
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export HYPRLAND_INSTANCE_SIGNATURE="$sig"
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if [ -n "$his" ]; then
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log "replaced stale HYPRLAND_INSTANCE_SIGNATURE ($his → $sig)"
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else
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log "recovered HYPRLAND_INSTANCE_SIGNATURE=$sig from hyprctl instances"
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fi
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fi
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}
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get_monitors() {
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# hyprctl's failure modes are noisy: when HYPRLAND_INSTANCE_SIGNATURE isn't
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# set (can happen when the TUI is spawned from a launcher whose env doesn't
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# inherit the Hyprland session), hyprctl prints a plain-text error to stdout
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# and exits 0 — which then makes jq complain loudly. Validate the JSON and
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# fall back to parsing the human-readable form.
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ensure_hyprland_env
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local mon_json mon_text
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mon_json="$(hyprctl monitors -j 2>/dev/null || true)"
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if [ -n "$mon_json" ] && printf '%s' "$mon_json" | jq -e . >/dev/null 2>&1; then
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printf '%s' "$mon_json" | jq -r '.[].name'
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return 0
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fi
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mon_text="$(hyprctl monitors 2>/dev/null || true)"
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if [ -n "$mon_text" ]; then
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printf '%s\n' "$mon_text" \
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| awk '/^Monitor /{print $2; ok=1} END{exit !ok}' \
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&& return 0
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fi
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log "get_monitors: hyprctl produced no usable output (HIS=${HYPRLAND_INSTANCE_SIGNATURE:-unset})"
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return 1
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}
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pick_target() {
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command -v hyprctl >/dev/null || { tui_err "hyprctl not found. Are you in Hyprland?"; return 1; }
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command -v jq >/dev/null || { tui_err "jq is not installed."; return 1; }
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local monitors
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if ! monitors="$(get_monitors)" || [ -z "$monitors" ]; then
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if [ -z "${HYPRLAND_INSTANCE_SIGNATURE:-}" ]; then
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tui_err "HYPRLAND_INSTANCE_SIGNATURE is not set — the launcher didn't inherit the Hyprland session. Try running motion-wallpaper-toggle from a regular terminal."
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else
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tui_err "Could not read monitors from hyprctl. See $LOG_FILE."
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fi
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return 1
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fi
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local count
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count="$(printf '%s\n' "$monitors" | wc -l)"
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if [ "$count" -eq 1 ]; then
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printf '%s' "$monitors"
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return 0
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fi
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local selected
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selected=$( { echo "All monitors"; printf '%s\n' "$monitors"; } \
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if [ "$selected" = "All monitors" ]; then
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printf '%s' '*'
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else
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printf '%s' "$selected"
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fi
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}
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browse_filesystem() {
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# Start gum file at the last directory we successfully picked from, so
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# changing videos returns the user to where they were. Falls back to the
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# last video's dirname (for state files pre-dating LAST_DIR), then $HOME.
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load_state
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local start_dir="${LAST_DIR:-}"
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if [ -z "$start_dir" ] && [ -n "${LAST_VIDEO:-}" ]; then
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start_dir="$(dirname "$LAST_VIDEO")"
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fi
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if [ -z "$start_dir" ] || [ ! -d "$start_dir" ]; then
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start_dir="$HOME"
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fi
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gum file --height=20 "$start_dir"
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}
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pick_video() {
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local library=() basenames=() v
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if [ -d "$LIBRARY_DIR" ]; then
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while IFS= read -r -d '' f; do
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library+=("$f")
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done < <(
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find "$LIBRARY_DIR" -maxdepth 1 -type f \
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\( -iname '*.mp4' -o -iname '*.mkv' -o -iname '*.webm' -o -iname '*.mov' -o -iname '*.avi' \) \
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-print0 2>/dev/null | sort -z
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)
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fi
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if [ ${#library[@]} -eq 0 ]; then
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browse_filesystem || return 1
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return 0
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fi
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for v in "${library[@]}"; do
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basenames+=("$(basename "$v")")
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done
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local choice
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choice=$( { printf '%s\n' "${basenames[@]}"; echo "$BROWSE_SENTINEL"; } \
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if [ "$choice" = "$BROWSE_SENTINEL" ]; then
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browse_filesystem
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else
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printf '%s' "$LIBRARY_DIR/$choice"
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fi
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}
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# ===== mpvpaper control =======================================================
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kill_static_wallpapers() {
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pkill -x hyprpaper 2>/dev/null || true
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pkill -x swaybg 2>/dev/null || true
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}
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kill_watcher() {
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pkill -f motion-wallpaper-watcher 2>/dev/null || true
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}
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start_watcher() {
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local watcher
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# PATH in launcher-spawned terminals is unreliable (minimal systemd env etc),
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# so fall back to the script's own directory where the installer puts both.
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watcher="$(command -v motion-wallpaper-watcher 2>/dev/null || true)"
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if [ -z "$watcher" ]; then
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local self_dir
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self_dir="$(dirname "$(readlink -f "$0")")"
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if [ -x "$self_dir/motion-wallpaper-watcher" ]; then
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watcher="$self_dir/motion-wallpaper-watcher"
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fi
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fi
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if [ -z "$watcher" ]; then
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log "watcher binary not found — auto-pause disabled"
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return 0
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fi
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kill_watcher
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setsid "$watcher" < /dev/null >> "$LOG_FILE" 2>&1 &
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disown 2>/dev/null || true
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log "watcher spawned via $watcher"
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}
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restore_static_wallpaper() {
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local omarchy_bg="$HOME/.config/omarchy/current/background"
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if [ -e "$omarchy_bg" ]; then
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# Stop may be called twice in quick succession when the TUI stops the
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# wallpaper and systemd's ExecStop fires right after. Skip if someone
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# else already put swaybg back so we don't kill-and-respawn (causes a
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# visible flicker).
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if pgrep -x swaybg >/dev/null 2>&1 && ! pgrep -x mpvpaper >/dev/null 2>&1; then
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log "swaybg already running, skipping restore"
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return 0
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fi
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pkill -x hyprpaper 2>/dev/null || true
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pkill -x swaybg 2>/dev/null || true
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if command -v uwsm-app >/dev/null 2>&1; then
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setsid uwsm-app -- swaybg -i "$omarchy_bg" -m fill >/dev/null 2>&1 &
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else
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setsid swaybg -i "$omarchy_bg" -m fill >/dev/null 2>&1 &
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fi
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disown 2>/dev/null || true
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log "restored swaybg -> $omarchy_bg"
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elif command -v hyprpaper >/dev/null 2>&1; then
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hyprctl dispatch exec hyprpaper >/dev/null 2>&1 || true
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log "restored hyprpaper"
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else
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log "no known static wallpaper daemon to restore"
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fi
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}
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start_mpvpaper_fg() {
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local target="$1" video="$2"
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kill_static_wallpapers
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pkill -x mpvpaper 2>/dev/null || true
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sleep 0.3
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log "systemd start target=$target video=$video"
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start_watcher
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# shellcheck disable=SC2086 # intentional word-splitting on MPV_OPTS
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exec mpvpaper -o "$MPV_OPTS" "$target" "$video"
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}
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start_mpvpaper_bg() {
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local target="$1" video="$2"
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kill_static_wallpapers
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pkill -x mpvpaper 2>/dev/null || true
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sleep 0.3
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log "start target=$target video=$video"
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# setsid detaches from the controlling terminal so mpvpaper survives the
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# TUI terminal closing; uwsm-app parents it to the user systemd scope
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# (matches how Omarchy autostarts swaybg). Without both, mpvpaper was
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# getting SIGHUP'd when the Walker-spawned terminal exited.
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# shellcheck disable=SC2086 # intentional word-splitting on MPV_OPTS
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if command -v uwsm-app >/dev/null 2>&1; then
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setsid uwsm-app -- mpvpaper -o "$MPV_OPTS" "$target" "$video" \
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< /dev/null >> "$LOG_FILE" 2>&1 &
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else
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# shellcheck disable=SC2086
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setsid mpvpaper -o "$MPV_OPTS" "$target" "$video" \
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< /dev/null >> "$LOG_FILE" 2>&1 &
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fi
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disown 2>/dev/null || true
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start_watcher
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sleep 0.8
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if ! is_running; then
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tui_err "mpvpaper failed to start. See $LOG_FILE for details."
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return 1
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fi
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}
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stop_mpvpaper() {
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# Serialize stops so the TUI-initiated path and systemd's ExecStop (which
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# fires when the TUI kills mpvpaper) can't both be mid-restore at once.
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# `flock -n` → second caller skips cleanly if the first still holds it.
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(
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flock -n 9 || { log "stop already in progress, skipping"; exit 0; }
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kill_watcher
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pkill -x mpvpaper 2>/dev/null || true
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# mpv cleans up its IPC socket on exit; a hard kill can leave it dangling.
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rm -f "$MPV_IPC_SOCK" 2>/dev/null || true
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restore_static_wallpaper
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log "stopped"
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) 9>"$STATE_DIR/.stop.lock"
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}
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# ===== actions ================================================================
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action_toggle() {
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require_gum
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require_tty
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if is_running; then
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show_header
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local autostart_label
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if autostart_enabled; then
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autostart_label="Turn autostart OFF"
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else
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autostart_label="Turn autostart ON"
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fi
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local choice
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choice=$(gum choose --header="What would you like to do?" \
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"Stop motion wallpaper" "Change video" "$autostart_label" "Cancel") || exit 0
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case "$choice" in
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"Stop motion wallpaper")
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stop_mpvpaper
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tui_ok "Stopped. Normal wallpaper restored."
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notify "Motion wallpaper stopped."
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# If autostart is on, a plain stop will let the wallpaper return on
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# next reboot. Offer to turn autostart off so "stop" means "stop".
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if autostart_enabled; then
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if gum confirm "Autostart is still enabled — also disable it so the wallpaper doesn't resume after reboot?"; then
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autostart_disable
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tui_ok "Autostart disabled."
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fi
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fi
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;;
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"Change video")
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load_state
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local video
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video=$(pick_video) || exit 0
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[ -z "$video" ] && exit 0
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[ -f "$video" ] || { tui_err "File not found: $video"; exit 1; }
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save_state "$video" "$LAST_TARGET"
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start_mpvpaper_bg "$LAST_TARGET" "$video" || exit 1
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tui_ok "Swapped to $(basename "$video")."
|
|
notify "Motion wallpaper updated."
|
|
;;
|
|
"Turn autostart ON")
|
|
autostart_enable && tui_ok "Autostart enabled — wallpaper will resume after reboot."
|
|
;;
|
|
"Turn autostart OFF")
|
|
autostart_disable
|
|
tui_ok "Autostart disabled."
|
|
# Motion wallpaper is still running at this point. Offer to also stop
|
|
# it now so the label "turn off" matches visible behaviour.
|
|
if is_running; then
|
|
if gum confirm "Motion wallpaper is still running — stop it now too?"; then
|
|
stop_mpvpaper
|
|
tui_ok "Stopped. Normal wallpaper restored."
|
|
notify "Motion wallpaper stopped."
|
|
fi
|
|
fi
|
|
;;
|
|
Cancel) exit 0 ;;
|
|
esac
|
|
return 0
|
|
fi
|
|
|
|
show_header
|
|
local target video
|
|
target=$(pick_target) || exit 0
|
|
[ -z "$target" ] && exit 0
|
|
video=$(pick_video) || exit 0
|
|
[ -z "$video" ] && exit 0
|
|
[ -f "$video" ] || { tui_err "File not found: $video"; exit 1; }
|
|
|
|
save_state "$video" "$target"
|
|
start_mpvpaper_bg "$target" "$video" || exit 1
|
|
tui_ok "Started $(basename "$video") on $target."
|
|
notify "Motion wallpaper started on $target."
|
|
|
|
# Offer autostart on first fresh start (skipped silently if already on or
|
|
# if the systemd unit isn't installed).
|
|
if autostart_installed && ! autostart_enabled; then
|
|
if gum confirm "Start motion wallpaper automatically after login / reboot?"; then
|
|
autostart_enable && tui_ok "Autostart enabled."
|
|
fi
|
|
fi
|
|
}
|
|
|
|
action_change() {
|
|
require_gum
|
|
require_tty
|
|
if ! is_running; then
|
|
tui_err "Motion wallpaper is not running."
|
|
exit 1
|
|
fi
|
|
load_state
|
|
local video
|
|
video=$(pick_video) || exit 0
|
|
[ -z "$video" ] && exit 0
|
|
[ -f "$video" ] || { tui_err "File not found: $video"; exit 1; }
|
|
save_state "$video" "$LAST_TARGET"
|
|
start_mpvpaper_bg "$LAST_TARGET" "$video" || exit 1
|
|
tui_ok "Swapped to $(basename "$video")."
|
|
notify "Motion wallpaper updated."
|
|
}
|
|
|
|
action_start() {
|
|
load_state
|
|
if [ -z "$LAST_VIDEO" ] || [ -z "$LAST_TARGET" ]; then
|
|
log "autostart: no saved state, exiting cleanly"
|
|
exit 0
|
|
fi
|
|
if [ ! -f "$LAST_VIDEO" ]; then
|
|
log "autostart: saved video missing ($LAST_VIDEO)"
|
|
exit 1
|
|
fi
|
|
start_mpvpaper_fg "$LAST_TARGET" "$LAST_VIDEO"
|
|
}
|
|
|
|
action_stop() {
|
|
stop_mpvpaper
|
|
}
|
|
|
|
action_status() {
|
|
if command -v gum >/dev/null 2>&1 && [ -t 1 ]; then
|
|
show_header
|
|
else
|
|
load_state
|
|
if is_running; then echo "status: running"; else echo "status: stopped"; fi
|
|
if [ -n "${LAST_TARGET:-}" ]; then echo "target: $LAST_TARGET"; fi
|
|
if [ -n "${LAST_VIDEO:-}" ]; then echo "video: $LAST_VIDEO"; fi
|
|
fi
|
|
}
|
|
|
|
# ===== main ===================================================================
|
|
|
|
case "${1:-toggle}" in
|
|
toggle) action_toggle ;;
|
|
start) action_start ;;
|
|
stop) action_stop ;;
|
|
change) action_change ;;
|
|
status) action_status ;;
|
|
-h|--help)
|
|
cat <<USAGE
|
|
$APP_NAME
|
|
Usage: ${0##*/} [toggle|start|stop|change|status]
|
|
|
|
toggle Interactive gum TUI (default). If running, offers Stop / Change.
|
|
start Start from saved state without prompting (for systemd).
|
|
stop Stop mpvpaper and restore the normal wallpaper.
|
|
change Pick a new video while already running.
|
|
status Print current state.
|
|
USAGE
|
|
;;
|
|
*)
|
|
echo "Unknown action: $1" >&2
|
|
echo "Try: ${0##*/} --help" >&2
|
|
exit 1
|
|
;;
|
|
esac
|