205 lines
7.2 KiB
Bash
Executable File
205 lines
7.2 KiB
Bash
Executable File
#!/bin/bash
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# Exit out if the same script is already running in the background
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pidof -sq -o %PPID -x "$(basename "$0")" && exit
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# Set the directory/file paths
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declare -r flatpak_themes_dir="$HOME/.themes"
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declare -r config_dir="${XDG_CONFIG_HOME:-$HOME/.config}"
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declare -r profile="$HOME/.profile"
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# Create directories if they don't exist
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mkdir -p "$flatpak_themes_dir" "$config_dir" ||
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{ echo "failed to make directories $flatpak_themes_dir & $config_dir"; exit 1; }
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# Enable option for syncing the current theme with XFWM theme if not already enabled
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[ "$(xfconf-query -c xsettings -p /Xfce/SyncThemes)" != 'true' ] &&
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xfconf-query -c xsettings -p /Xfce/SyncThemes -n -t bool -s true
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xdg_directory_lookup() {
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# Go through each item in $XDG_DATA_DIRS and find the subdirectory $1
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while read -r dir; do
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local subdir="${dir%/}/$1"
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if [ -d "$subdir" ]; then
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echo "$subdir"
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break
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fi
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done < <(printf '%s:%s\n' "$HOME/.local/share" "$XDG_DATA_DIRS" | tr ':' '\n')
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}
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theme_exists() {
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local -r theme_dir=$(xdg_directory_lookup "themes/$1")
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[ -d "$theme_dir" ]
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}
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# Function for setting variables in ~/.profile
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profile_set_variable() {
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# Return if the variable is already set to the correct value
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grep -xq "\s*export\s\+$1=$2\s*" "$profile" && return
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# If the variable is set to a different value then remove that line
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grep -q "^\s*export\s\+$1=" "$profile" && sed -i "/^\s*export\s\+$1=/d" "$profile"
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# Set the variable to the correct value under a comment mentioning this script
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if grep -xq '\s*#\s*Values set by the fix-theming script\s*' "$profile"; then
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sed -i "/^\s*#\s*Values set by the fix-theming script\s*$/a export $1=$2" "$profile"
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elif grep -q '\s' "$profile"; then
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# shellcheck disable=SC2015
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tail -n1 "$profile" | grep -qx '\s*' &&
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local -r begin='' || local -r begin='\n'
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printf '%b# Values set by the fix-theming script\nexport %s=%s\n' "$begin" "$1" "$2" >> "$profile"
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else
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printf '# Values set by the fix-theming script\nexport %s=%s\n' "$1" "$2" > "$profile"
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fi
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logout_required='true'
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}
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set_QT_scaling() {
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for var in QT_SCALE_FACTOR QT_AUTO_SCREEN_SCALE_FACTOR QT_ENABLE_HIGHDPI_SCALING; do
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profile_set_variable "$var" "$1"
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done
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}
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set_cursor_size() {
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xfconf-query -c xsettings -p /Gtk/CursorThemeSize -s "$1"
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}
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set_xfwm_theme() {
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xfconf-query -c xfwm4 -p /general/theme -n -t string -s "$1"
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}
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# Use the highDPI variant of the XFWM theme
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use_hdpi_theme_variant() {
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# shellcheck disable=SC2015
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[ -n "$1" ] && local -r xfwm_theme="$1" ||
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local -r xfwm_theme=$(xfconf-query -c xfwm4 -p /general/theme)
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for variant in xhdpi hdpi; do
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# If this variant of the theme is already enabled then break out of the loop
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[ "${xfwm_theme##*-}" = "$variant" ] && break
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# Store the name for this variant of the theme in highDPI_theme variable
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local highDPI_theme=$xfwm_theme-$variant
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if theme_exists "$highDPI_theme"; then
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set_xfwm_theme "$highDPI_theme"
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[ -z "$1" ] &&
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notify-send "XFWM theme changed to $highDPI_theme" "Changed to the highDPI variant of your chosen theme because you've enabled highDPI on your system"
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break
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fi
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done
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if ! theme_exists "$highDPI_theme"; then
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[ -n "$1" ] && theme_exists "$1" && set_xfwm_theme "$1"
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fi
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}
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# Use the normal variant of the XFWM theme
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use_normal_theme_variant() {
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local -r current_xfwm_theme=$(xfconf-query -c xfwm4 -p /general/theme)
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for variant in xhdpi hdpi; do
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# Continue looping if this (highDPI) variant of the theme is not enabled
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[ "${current_xfwm_theme##*-}" != "$variant" ] && continue
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# Store the name for the normal variant of this theme in normal_theme variable
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local normal_theme=${current_xfwm_theme%-"$variant"}
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if theme_exists "$normal_theme"; then
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set_xfwm_theme "$normal_theme"
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notify-send "XFWM theme changed to $normal_theme" "Changed to the normal variant of your chosen theme because you've disabled highDPI on your system"
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break
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fi
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done
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}
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# Change XFWM theme, QT apps scaling, and mouse cursor size according to
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# the user's current window scaling (highDPI setting)
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hdpi_theme_fix() {
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local -r current_window_scaling=$(xfconf-query -c xsettings -p /Gdk/WindowScalingFactor)
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local -r current_cursor_size=$(xfconf-query -c xsettings -p /Gtk/CursorThemeSize)
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unset logout_required
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if [ "$current_window_scaling" -eq '2' ]; then
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# Increase scaling for QT apps
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set_QT_scaling 2
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# Use the highDPI variant of the XFWM theme
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use_hdpi_theme_variant
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if [ "$current_cursor_size" -eq 25 ]; then
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set_cursor_size '45'
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notify-send 'Mouse cursor size increased to 45' "Changed to a larger mouse cursor because you've enabled highDPI on your system"
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fi
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else
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# Decrease scaling for QT apps
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set_QT_scaling 1
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# Use the normal variant of the XFWM theme
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use_normal_theme_variant
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if [ "$current_cursor_size" -eq 45 ]; then
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set_cursor_size '25'
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notify-send 'Mouse cursor size decreased to 25' "Changed to a smaller mouse cursor because you've disabled highDPI on your system"
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fi
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fi
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# Show popup menu about logout if it's required
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[ "$logout_required" = 'true' ] &&
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yad --image "dialog-question" --title "Alert" --buttons-layout=center --text-align=center --button=yad-yes:0 --button=yad-no:1 --text 'Logout is required in order to apply your DPI preferences to QT apps.\nWould you like to logout now?' &&
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xfce4-session-logout --logout
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}
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sync_theme() {
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# Get the current system theme
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local -r current_theme=$(xfconf-query -c xsettings -p /Net/ThemeName)
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# Get the current window scaling factor (highDPI setting)
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local -r current_window_scaling=$(xfconf-query -c xsettings -p /Gdk/WindowScalingFactor)
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# Apply the current theme with gsettings
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gsettings set org.gnome.desktop.interface gtk-theme "$current_theme"
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# Apply the current theme for GTK and Libadwaita apps on flatpak
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flatpak override --user --env=GTK_THEME="$current_theme"
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# Apply the current theme for XFWM unless it's initial_sync on system reboot
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if [ "$1" != 'initial_sync' ]; then
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# Use the highDPI variant of the XFWM theme if the current_window_scaling factor is 2
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if [ "$current_window_scaling" -eq '2' ]; then
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use_hdpi_theme_variant "$current_theme"
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else
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set_xfwm_theme "$current_theme"
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fi
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fi
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# Cleanup flatpak_themes_dir and remove ~/.config/gtk-4.0
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rm -rf "${flatpak_themes_dir:?}"/{*,.*} "$config_dir/gtk-4.0"
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# Find the directory where the current theme is stored
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local -r current_theme_dir=$(xdg_directory_lookup "themes/$current_theme")
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if [ -d "$current_theme_dir" ]; then
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# Copy/sync current_theme_dir to flatpak_themes_dir
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rsync -av --delete --progress "$current_theme_dir" "$flatpak_themes_dir"
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# Create symlink for gtk-4.0 directory
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ln -s "$current_theme_dir/gtk-4.0" "$config_dir"
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fi
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}
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sync_font() {
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# Get the current system font
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local -r current_font=$(xfconf-query -c xsettings -p /Gtk/FontName)
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# Apply the same font for the title of XFCE windows
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xfconf-query -c xfwm4 -p /general/title_font -n -t string -s "$current_font"
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}
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# Initial synchronization
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sync_theme 'initial_sync'
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sync_font
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# Monitor when the user changes their system theme/icons/font in XFCE and sync them as needed
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while read -r line; do
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case "$line" in
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'set: /Net/ThemeName') sync_theme ;;
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'set: /Gdk/WindowScalingFactor') hdpi_theme_fix ;;
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'set: /Gtk/FontName') sync_font ;;
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esac
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done < <(xfconf-query -c xsettings -m)
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