127 lines
3.6 KiB
Bash
Executable File
127 lines
3.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Required tools:
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# - zenity (for file selection dialog)
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# - imagemagick (for image processing)
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# - swww (wallpaper daemon)
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# - notify-send (for notifications)
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# - change-colortheme (from scripts/change-colortheme)
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# - flock (usually part of util-linux)
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# Lock
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exec {LOCK_FD}>/tmp/"$(basename "$0")".lock || {
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echo "Failed to open lock file"
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exit 1
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}
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flock -n "$LOCK_FD" || {
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echo "Another instance is running. Exiting."
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notify-send -a "change-wallpaper" "Error" "Another instance is running. Exiting."
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exit 1
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}
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# Open a file selection dialog if no argument is provided
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if [ -z "$1" ]; then
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image=$(zenity --file-selection --title="Open File" --file-filter="*.jpg *.jpeg *.png *.webp *.bmp *.jfif *.tiff *.avif *.heic *.heif")
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else
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image="$1"
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fi
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[ -z "$image" ] && exit 1
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[ ! -f "$image" ] && exit 1
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# $HOME/.config/wallpaper-chooser/config.json:
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# ```json
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# "sort": {
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# "type": "date",
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# "reverse": true
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# }
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# ```
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# So in order to let the most recently used wallpapers appear first:
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touch "$image"
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# Copy image to local wallpaper directory
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ext=${image##*.}
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random_name=$(tr -dc 'a-zA-Z0-9' </dev/urandom | head -c 16)
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current_dir="$HOME/.local/share/wallpaper/current"
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image_copied="$current_dir/wallpaper-${random_name}.${ext}"
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mkdir -p "$current_dir" || (
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echo "Could not create directory $current_dir"
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exit 1
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)
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temp_img=$(mktemp --suffix=."$ext") || exit 1
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trap 'rm -f "$temp_img"' EXIT
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cp "$image" "$temp_img" || exit 1
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rm -f "${current_dir:?}"/wallpaper-*
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cp -f "$temp_img" "$image_copied" || (
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echo "Could not copy image to $current_dir"
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exit 1
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)
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# Generate blurred wallpaper
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blur_dir="$HOME/.local/share/wallpaper/blurred"
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mkdir -p "$blur_dir" || (
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echo "Could not create cache directory"
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exit 1
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)
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rm -f "${blur_dir:?}"/blurred-*
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blurred_image="$blur_dir/blurred-${random_name}.$ext"
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## Time consuming task (magick -blur) in background
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(
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# notify-send -a "change-wallpaper" "Generating Blurred Wallpaper" "This may take a few seconds..."
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sigma=$(magick identify -format "%w %h" "$image_copied" | awk -v f=0.01 '{
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m=($1>$2)?$1:$2;
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s=m*f;
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if(s<2) s=2;
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if(s>200) s=200;
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printf "%.2f", s
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}')
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### use a temporary file to avoid incomplete file being used
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temp_blurred=$(mktemp --suffix=."$ext") || exit 1
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trap 'rm -f "${temp_blurred}"' EXIT
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magick "$image_copied" -blur 0x"$sigma" "$temp_blurred" || (
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echo "Could not create blurred image"
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exit 1
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)
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mv -f "$temp_blurred" "$blurred_image" || (
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echo "Could not move blurred image to cache directory"
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exit 1
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)
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if [ "$XDG_CURRENT_DESKTOP" = "niri" ]; then
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swww img -n backdrop "$blurred_image" --transition-type fade --transition-duration 2 > /dev/null 2> /dev/null
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fi
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notify-send -a "change-wallpaper" "Blurred Wallpaper Generated" "$blurred_image" -i "$blurred_image"
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) &
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# Apply wallpaper
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if [ "$XDG_CURRENT_DESKTOP" = "Hyprland" ]; then
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swww img -n background "$image_copied" --transition-type fade --transition-duration 2 > /dev/null 2> /dev/null
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notify-send -a "change-wallpaper" "Wallpaper Changed" "$image" -i "$image_copied"
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change-colortheme -i "$image_copied" || exit 1
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elif [ "$XDG_CURRENT_DESKTOP" = "niri" ]; then
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swww img -n background "$image_copied" --transition-type fade --transition-duration 2 > /dev/null 2> /dev/null
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notify-send -a "change-wallpaper" "Wallpaper Changed" "$image" -i "$image_copied"
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change-colortheme -i "$image_copied" || exit 1
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else
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echo "Unsupported desktop environment: $XDG_CURRENT_DESKTOP"
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exit 1
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fi
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