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Uyanide
2026-01-24 23:16:59 +01:00
parent 4f384a2c79
commit b9ed4072f2
4 changed files with 56 additions and 49 deletions
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config/scripts/.local/scripts/change-wallpaper
+43 -37
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@@ -11,12 +11,13 @@
# - change-colortheme (from scripts/change-colortheme)
# - flock (usually part of util-linux)
set -euo pipefail
trap 'echo $LINENO: $BASH_COMMAND' ERR
# Lock
exec {LOCK_FD}>/tmp/"$(basename "$0")".lock || {
echo "Failed to open lock file"
exit 1
}
exec {LOCK_FD}>/tmp/"$(basename "$0")".lock
flock -n "$LOCK_FD" || {
echo "Another instance is running. Exiting."
@@ -26,7 +27,7 @@ flock -n "$LOCK_FD" || {
# Open a file selection dialog if no argument is provided
if [ -z "$1" ]; then
if [ -z "${1-}" ]; then
image=$(zenity --file-selection --title="Open File" --file-filter="*.jpg *.jpeg *.png *.webp *.bmp *.jfif *.tiff *.avif *.heic *.heif")
else
image="$1"
@@ -37,8 +38,8 @@ fi
# Obtain screen resolution
screen_width=$2
screen_height=$3
screen_width=${2-}
screen_height=${3-}
[ -z "$screen_width" ] && {
if [ "$XDG_CURRENT_DESKTOP" = "Hyprland" ]; then
@@ -56,8 +57,9 @@ screen_height=$3
fi
}
[ -z "$screen_width" ] && screen_width=2560
[ -z "$screen_height" ] && screen_height=1440
## Default to 2k
screen_width=${screen_width:-2560}
screen_height=${screen_height:-1440}
# $HOME/.config/wallpaper-chooser/config.json:
# ```json
@@ -71,37 +73,43 @@ touch "$image" 2>/dev/null || true # ignore errors
# Copy image to local wallpaper directory
## Format of current and cached wallpaper
wallpaper_ext="png"
## Generate a random name for the current wallpaper
set +o pipefail # SIGPIPE is expected here
random_name=$(tr -dc 'a-zA-Z0-9' </dev/urandom | head -c 16)
set -o pipefail
## Directory to store current wallpaper
current_dir="$HOME/.local/share/wallpaper/current"
## Path to current wallpaper image
wallpaper_image="$current_dir/wallpaper-${random_name}.${wallpaper_ext}"
mkdir -p "$current_dir" || {
echo "Could not create directory $current_dir"
exit 1
}
mkdir -p "$current_dir"
temp_img=$(mktemp --suffix=."$wallpaper_ext") || exit 1
## Batch copy using a temporary file to avoid incomplete file being used
temp_img=$(mktemp --suffix=."$wallpaper_ext")
trap 'rm -f "$temp_img"' EXIT
magick "$image" -resize "${screen_width}x${screen_height}^" -gravity center -extent "${screen_width}x${screen_height}" "$temp_img" || {
echo "Could not resize and crop image"
exit 1
}
cp "$temp_img" "$wallpaper_image" || exit 1
magick "$image" -resize "${screen_width}x${screen_height}^" -gravity center -extent "${screen_width}x${screen_height}" "$temp_img"
cp "$temp_img" "$wallpaper_image"
## Generate hash for caching,
## based on content of the source image and resolution of the resized image
hash="$(md5sum "$image" | awk '{print $1}')-${screen_width}x${screen_height}"
# Clean up old wallpapers
# Clean up old wallpapers in the same directory of current wallpaper.
# Only keep the newly added one so the wallpaper-daemon can pick it up directly
find "$current_dir" -type f -name "wallpaper-*" ! -name "$(basename "$wallpaper_image")" -delete
# Generate blurred wallpaper
## Similarly, store blurred version of current wallpaper in separate directory
blur_dir="$HOME/.local/share/wallpaper/blurred"
## Directory to cache blurred wallpapers, so that we don't need to regenerate
## them every time when switching wallpapers. This makes it possible to have
## an auto-played slideshow with blurred wallpapers without noticeable delay.
blur_cache_dir="$HOME/.local/share/wallpaper/blurred-cache"
mkdir -p "$blur_dir" "$blur_cache_dir" || {
echo "Could not create cache directory"
exit 1
}
mkdir -p "$blur_dir" "$blur_cache_dir"
blurred_image="$blur_dir/blurred-${random_name}.${wallpaper_ext}"
blurred_cache_image="$blur_cache_dir/${hash}.${wallpaper_ext}"
@@ -109,6 +117,14 @@ blurred_cache_image="$blur_cache_dir/${hash}.${wallpaper_ext}"
(
# notify-send -a "change-wallpaper" "Generating Blurred Wallpaper" "This may take a few seconds..."
function apply_blured {
find "$blur_dir" -type f -name "blurred-*" ! -name "$(basename "$blurred_image")" -delete
if [ "$XDG_CURRENT_DESKTOP" = "niri" ]; then
swww img -n backdrop "$blurred_image" --transition-type fade --transition-duration 2 >/dev/null 2>/dev/null
fi
notify-send -a "change-wallpaper" "Blurred Wallpaper Applied" "$blurred_image" -i "$blurred_image"
}
### Check if cached blurred image exists
if [ -f "$blurred_cache_image" ]; then
# sleep 1 # Some ugly workaround
@@ -116,11 +132,7 @@ blurred_cache_image="$blur_cache_dir/${hash}.${wallpaper_ext}"
echo "Could not copy cached blurred image"
# exit 1 # Non-critical error
else
find "$blur_dir" -type f -name "blurred-*" ! -name "$(basename "$blurred_image")" -delete
if [ "$XDG_CURRENT_DESKTOP" = "niri" ]; then
swww img -n backdrop "$blurred_image" --transition-type fade --transition-duration 2 >/dev/null 2>/dev/null
fi
notify-send -a "change-wallpaper" "Blurred Wallpaper From Cache" "$blurred_image" -i "$blurred_image"
apply_blured
exit 0
fi
fi
@@ -133,7 +145,7 @@ blurred_cache_image="$blur_cache_dir/${hash}.${wallpaper_ext}"
printf "%.2f", s
}')
### use a temporary file to avoid incomplete file being used
### Batch processing using a temporary file to avoid incomplete file being used
temp_blurred=$(mktemp --suffix=."$wallpaper_ext") || exit 1
trap 'rm -f "${temp_blurred}"' EXIT
magick "$wallpaper_image" -blur 0x"$sigma" "$temp_blurred" || {
@@ -146,18 +158,12 @@ blurred_cache_image="$blur_cache_dir/${hash}.${wallpaper_ext}"
exit 1
}
find "$blur_dir" -type f -name "blurred-*" ! -name "$(basename "$blurred_image")" -delete
cp -f "$blurred_image" "$blurred_cache_image" || {
echo "Could not cache blurred image"
# exit 1 # Non-critical error
}
if [ "$XDG_CURRENT_DESKTOP" = "niri" ]; then
swww img -n backdrop "$blurred_image" --transition-type fade --transition-duration 2 >/dev/null 2>/dev/null
fi
notify-send -a "change-wallpaper" "Blurred Wallpaper Generated" "$blurred_image" -i "$blurred_image"
apply_blured
) &
# Apply wallpaper