fixes-package/bin/periodic/fix-theming
rokosun b2a3bb83b4 Sync gtk-4.0 directory to fix theming
Also removed old code for flatpak_icons_dir which is not needed anymore.
2023-10-14 22:06:49 +02:00

200 lines
7.2 KiB
Bash
Executable File

#!/bin/bash
# Exit out if the same script is already running in the background
pidof -sq -o %PPID -x "$(basename "$0")" && exit
# Set the directory/file paths
declare -r flatpak_themes_dir="$HOME/.themes"
declare -r config_dir="${XDG_CONFIG_HOME:-$HOME/.config}"
declare -r profile="$HOME/.profile"
# Create directories if they don't exist
mkdir -p "$flatpak_themes_dir" "$config_dir" ||
{ echo "failed to make directories $flatpak_themes_dir & $config_dir"; exit 1; }
# Enable option for syncing the current theme with XFWM theme if not already enabled
[ "$(xfconf-query -c xsettings -p /Xfce/SyncThemes)" != 'true' ] &&
xfconf-query -c xsettings -p /Xfce/SyncThemes -n -t bool -s true
xdg_directory_lookup() {
# Go through each item in $XDG_DATA_DIRS and find the subdirectory $1
while read -r dir; do
local subdir="${dir%/}/$1"
if [ -d "$subdir" ]; then
echo "$subdir"
break
fi
done < <(printf '%s:%s\n' "$HOME/.local/share" "$XDG_DATA_DIRS" | tr ':' '\n')
}
theme_exists() {
local -r theme_dir=$(xdg_directory_lookup "themes/$1")
[ -d "$theme_dir" ]
}
# Function for setting variables in ~/.profile
profile_set_variable() {
# Return if the variable is already set to the correct value
grep -xq "\s*export\s\+$1=$2\s*" "$profile" && return
# If the variable is set to a different value then remove that line
grep -q "^\s*export\s\+$1=" "$profile" && sed -i "/^\s*export\s\+$1=/d" "$profile"
# Set the variable to the correct value under a comment mentioning this script
if grep -xq '\s*#\s*Values set by the fix-theming script\s*' "$profile"; then
sed -i "/^\s*#\s*Values set by the fix-theming script\s*$/a export $1=$2" "$profile"
elif grep -q '\s' "$profile"; then
# shellcheck disable=SC2015
tail -n1 "$profile" | grep -qx '\s*' &&
local -r begin='' || local -r begin='\n'
printf '%b# Values set by the fix-theming script\nexport %s=%s\n' "$begin" "$1" "$2" >> "$profile"
else
printf '# Values set by the fix-theming script\nexport %s=%s\n' "$1" "$2" > "$profile"
fi
logout_required='true'
}
set_QT_scaling() {
for var in QT_SCALE_FACTOR QT_AUTO_SCREEN_SCALE_FACTOR QT_ENABLE_HIGHDPI_SCALING; do
profile_set_variable "$var" "$1"
done
}
set_cursor_size() {
xfconf-query -c xsettings -p /Gtk/CursorThemeSize -s "$1"
}
set_xfwm_theme() {
xfconf-query -c xfwm4 -p /general/theme -n -t string -s "$1"
}
# Use the highDPI variant of the XFWM theme
use_hdpi_theme_variant() {
local -r current_xfwm_theme=$(xfconf-query -c xfwm4 -p /general/theme)
for variant in xhdpi hdpi; do
# If this variant of the theme is already enabled then break out of the loop
[ "${current_xfwm_theme##*-}" = "$variant" ] && break
# Store the name for this variant of the theme in highDPI_theme variable
local -r highDPI_theme=$current_xfwm_theme-$variant
if theme_exists "$highDPI_theme"; then
set_xfwm_theme "$highDPI_theme"
[ "$1" != 'disable_notification' ] &&
notify-send "XFWM theme changed to $highDPI_theme" "Changed to the highDPI variant of your chosen theme because you've enabled highDPI on your system"
break
fi
done
}
# Use the normal variant of the XFWM theme
use_normal_theme_variant() {
local -r current_xfwm_theme=$(xfconf-query -c xfwm4 -p /general/theme)
for variant in xhdpi hdpi; do
# Continue looping if this (highDPI) variant of the theme is not enabled
[ "${current_xfwm_theme##*-}" != "$variant" ] && continue
# Store the name for the normal variant of this theme in normal_theme variable
local -r normal_theme=${current_xfwm_theme%-"$variant"}
if theme_exists "$normal_theme"; then
set_xfwm_theme "$normal_theme"
notify-send "XFWM theme changed to $normal_theme" "Changed to the normal variant of your chosen theme because you've disabled highDPI on your system"
break
fi
done
}
# Change XFWM theme, QT apps scaling, and mouse cursor size according to
# the user's current window scaling (highDPI setting)
hdpi_theme_fix() {
local -r current_window_scaling=$(xfconf-query -c xsettings -p /Gdk/WindowScalingFactor)
local -r current_cursor_size=$(xfconf-query -c xsettings -p /Gtk/CursorThemeSize)
unset logout_required
if [ "$current_window_scaling" -eq '2' ]; then
# Increase scaling for QT apps
set_QT_scaling 2
# Use the highDPI variant of the XFWM theme
use_hdpi_theme_variant
if [ "$current_cursor_size" -eq 25 ]; then
set_cursor_size '45'
notify-send 'Mouse cursor size increased to 45' "Changed to a larger mouse cursor because you've enabled highDPI on your system"
fi
else
# Decrease scaling for QT apps
set_QT_scaling 1
# Use the normal variant of the XFWM theme
use_normal_theme_variant
if [ "$current_cursor_size" -eq 45 ]; then
set_cursor_size '25'
notify-send 'Mouse cursor size decreased to 25' "Changed to a smaller mouse cursor because you've disabled highDPI on your system"
fi
fi
# Show popup menu about logout if it's required
[ "$logout_required" = 'true' ] &&
yad --image "dialog-question" --title "Alert" --buttons-layout=center --text-align=center --button=yad-yes:0 --button=yad-no:1 --text 'Logout is required in order to apply your DPI preferences to QT apps.\nWould you like to logout now?' &&
xfce4-session-logout --logout
}
sync_theme() {
# Get the current system theme
local -r current_theme=$(xfconf-query -c xsettings -p /Net/ThemeName)
# Get the current window scaling factor (highDPI setting)
local -r current_window_scaling=$(xfconf-query -c xsettings -p /Gdk/WindowScalingFactor)
# Apply the current theme with gsettings
gsettings set org.gnome.desktop.interface gtk-theme "$current_theme"
# Apply the current theme for GTK and Libadwaita apps on flatpak
flatpak override --user --env=GTK_THEME="$current_theme"
# Apply the current theme for XFWM unless it's initial_sync on system reboot
if [ "$1" != 'initial_sync' ]; then
set_xfwm_theme "$current_theme"
# Use the highDPI variant of the XFWM theme if the current_window_scaling factor is 2
[ "$current_window_scaling" -eq '2' ] && use_hdpi_theme_variant 'disable_notification'
fi
# Cleanup flatpak_themes_dir and ~/.config/gtk-4.0
rm -rf "${flatpak_themes_dir:?}"/{*,.*} "$config_dir/gtk-4.0"/{*,.*}
# Find the directory where the current theme is stored
local -r current_theme_dir=$(xdg_directory_lookup "themes/$current_theme")
if [ -d "$current_theme_dir" ]; then
# Copy/sync current_theme_dir to flatpak_themes_dir
rsync -av --delete --progress "$current_theme_dir" "$flatpak_themes_dir"
local -r current_theme_gtk4_dir="$current_theme_dir/gtk-4.0"
[ -d "$current_theme_gtk4_dir" ] &&
# Copy/sync current_theme_gtk4_dir to config_dir
rsync -av --delete --progress "$current_theme_gtk4_dir" "$config_dir"
fi
}
sync_font() {
# Get the current system font
local -r current_font=$(xfconf-query -c xsettings -p /Gtk/FontName)
# Apply the same font for the title of XFCE windows
xfconf-query -c xfwm4 -p /general/title_font -n -t string -s "$current_font"
}
# Initial synchronization
sync_theme 'initial_sync'
sync_font
# Monitor when the user changes their system theme/icons/font in XFCE and sync them as needed
while read -r line; do
case "$line" in
'set: /Net/ThemeName') sync_theme ;;
'set: /Gdk/WindowScalingFactor') hdpi_theme_fix ;;
'set: /Gtk/FontName') sync_font ;;
esac
done < <(xfconf-query -c xsettings -m)