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steamify-cachyos/lib/desktop.sh
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#!/bin/bash
# Which desktop Steamify is running on (KDE Plasma or GNOME), and the
# session the login manager has to start for it. GNOME (GDM) is a prototype.
# Sourced by steamify.sh; not meant to be run on its own.
desktop_kind() {
# gnome or kde: the running session first, else what the login manager
# is (GDM means GNOME), else KDE, which Steamify was made for.
case ":${STEAMIFY_DESKTOP:-${XDG_CURRENT_DESKTOP:-}}:" in
*:GNOME:*|*:gnome:*) echo gnome; return ;;
*:KDE:*|*:kde:*) echo kde; return ;;
esac
[[ "$(current_display_manager)" == gdm ]] && { echo gnome; return; }
echo kde
}
desktop_session_file() {
# The login manager's session entry for the desktop: plasma.desktop, or
# whichever GNOME one is installed (gnome.desktop, gnome-xorg.desktop).
local f
if [[ "$(desktop_kind)" == gnome ]]; then
# The plain session, not GNOME Classic (gnome-classic.desktop, from gnome-shell-extensions) or Xorg's.
for f in /usr/share/wayland-sessions/gnome.desktop /usr/share/xsessions/gnome.desktop \
/usr/share/wayland-sessions/gnome-wayland.desktop; do
[[ -f "$f" ]] && { basename "$f"; return; }
done
echo gnome.desktop
else
echo plasma.desktop
fi
}
choose_login_manager() {
# LOGIN_MANAGER for gaming_enable: gdm on GNOME, else sddm with single
# user mode and plasmalogin without.
if [[ "$(desktop_kind)" == gnome ]]; then LOGIN_MANAGER=gdm
elif [[ "${WANTED[single]:-0}" == 1 ]]; then LOGIN_MANAGER=sddm
else LOGIN_MANAGER=plasmalogin; fi
}
desktop_installed() {
# desktop_installed kde|gnome: its session is installed (both can be: the
# menu then offers the theme of each).
local name=plasma f
[[ "$1" == gnome ]] && name=gnome
for f in /usr/share/wayland-sessions/$name*.desktop /usr/share/xsessions/$name*.desktop; do
[[ -f "$f" ]] && return 0
done
return 1
}