ff-theme-util

#! /bin/sh
# /usr/bin/ff-theme-util

config="$HOME/.gtkrc-2.0"
gtk3_conf="$HOME/.config/gtk-3.0/settings.ini"
ff_profiledir="$HOME/.mozilla/firefox"
pm_profiledir="$HOME/.moonchild productions/pale moon"
firstrun="$HOME/.ff-theme-util_1strun"

# create a random profile name
rand_name() {
    name="$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1).default"
}

# create browser profiles
init_profile() {
    ini="$profiledir/profiles.ini"
    if [[ -e $bin && ! -e $ini ]]; then
        install -Dm644 /etc/ff-theme-util/profiles.ini $ini
        rand_name
        sed -i "s/@random@/$name/" $ini
        mkdir "$profiledir/$name"
    fi
}

# needed in live-evironment before browser profiles have been initialized
firstrun() {
    # init Firefox profile
    bin=/usr/bin/firefox
    profiledir="$ff_profiledir"
    init_profile

    # same for Palemoon
    bin=/usr/bin/palemoon
    profiledir="$pm_profiledir"
    init_profile

    touch $firstrun
}

# determine config to monitor and method to query current gtk theme
get_config() {
    case $DESKTOP_SESSION in
        cinnamon) current_theme=$(gsettings get org.cinnamon.desktop.interface gtk-theme | tr -d \')
            ;;
        deepin) current_theme=$(gsettings get com.deepin.dde.appearance gtk-theme | tr -d \')
            ;;
        gnome|budgie-desktop|pantheon) current_theme=$(gsettings get org.gnome.desktop.interface gtk-theme | tr -d \')
            ;;
        mate) current_theme=$(gsettings get org.mate.interface gtk-theme | tr -d \')
            ;;
        xfce) config="$HOME/.config/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml"
            current_theme=$(xfconf-query -lvc xsettings -p /Net/ThemeName | cut -d' ' -f3)
            ;;
        *)  if [[ $gtk3_conf -nt $config ]]; then
                config=$gtk3_conf
                current_theme=$(grep "gtk-theme-name" $config | cut -d'=' -f2)
            else
                current_theme=$(grep "gtk-theme-name" $config | cut -d'"' -f2)
            fi
            ;;
    esac
}

# check if current theme provides chrome dir
has_chrome() {
    chromedir="$themesdir/$current_theme/chrome"
    [[ -e "$chromedir" ]] && return 0 || return 1
}

# list Firefox and Palemoon userprofiles
profiles() {
    grep Path "$profiledir/profiles.ini" | cut -d'=' -f2
}

# create symlinks to chrome dir for each profile
set_theme() {
    for p in $(profiles); do
        ln -sfd "$1" "$profiledir/$p"
    done
}

unset_theme() {
    for p in $(profiles); do
    userchrome="$profiledir/$p/chrome"
        [[ -L "$userchrome" ]] && rm -f "$userchrome"
    done
}

update_theme() {
    get_config

    # Firefox
    profiledir="$ff_profiledir"
    themesdir=/usr/share/themes/Firefox

    if has_chrome; then
        # in case we also need to use it for Palemoon
        has_ff=true
        ff_chromedir="$chromedir"
        if [[ -e "$profiledir" ]]; then
            set_theme "$chromedir"
        fi
    else
        has_ff=false
        unset_theme
    fi

    # Palemoon
    profiledir="$pm_profiledir"
    themesdir=/usr/share/themes/Palemoon
    if [[ -e "$profiledir" ]]; then
        if has_chrome; then
           set_theme "$chromedir"
        # fallback to Firefox theme if available
        elif [[ $has_ff == "true" ]]; then
           set_theme "$ff_chromedir"
        else
            unset_theme
        fi
    fi
}

[[ ! -e $firstrun ]] && firstrun
update_theme

# monitor gtk2 theme changes
while inotifywait -e attrib -e modify "$config"; do
    update_theme
done

exit 0