Set GTK 4 decoration layout

anaconda.spec.in

@@ -435,6 +435,7 @@ rm -rf \
 %endif
 %{_datadir}/anaconda/window-manager
 %{_datadir}/anaconda/anaconda-gtk.css
+%{_datadir}/anaconda/gtk-4.0/settings.ini
 
 %files tui
 %{python3_sitearch}/pyanaconda/rescue.py

configure.ac

@@ -111,6 +111,7 @@ AC_CONFIG_FILES([Makefile
                  data/liveinst/gnome/Makefile
                  data/systemd/Makefile
                  data/dbus/Makefile
+                 data/gtk-4.0/Makefile
                  data/window-manager/Makefile
                  data/window-manager/config/Makefile
                  po/Makefile

data/Makefile.am

@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-SUBDIRS = command-stubs liveinst systemd pixmaps window-manager dbus conf.d profile.d
+SUBDIRS = command-stubs gtk-4.0 liveinst systemd pixmaps window-manager dbus conf.d profile.d
 
 CLEANFILES = *~
 

data/gtk-4.0/Makefile.am

@@ -0,0 +1,23 @@
+# data/gtk-4.0/Makefile.am for anaconda
+#
+# Copyright (C) 2009  Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+CLEANFILES = *~
+
+gtk4dir           = $(datadir)/$(PACKAGE_NAME)/gtk-4.0
+dist_gtk4_DATA    = settings.ini
+
+MAINTAINERCLEANFILES = Makefile.in

data/gtk-4.0/settings.ini

@@ -0,0 +1,2 @@
+[Settings]
+gtk-decoration-layout=:close

pyanaconda/display.py

@@ -193,6 +193,11 @@ def do_startup_x11_actions():
     else:
         xdg_data_dirs = datadir + '/window-manager:/usr/share'
 
+    xdg_config_dirs = datadir
+    if 'XDG_CONFIG_DIRS' in os.environ:
+        xdg_config_dirs = datadir + ':' + os.environ['XDG_CONFIG_DIRS']
+    os.environ['XDG_CONFIG_DIRS'] = xdg_config_dirs
+
     def x11_preexec():
         # to set GUI subprocess SIGINT handler
         signal.signal(signal.SIGINT, signal.SIG_IGN)