gtk2: search for themes in XDG_DATA_DIRS

This patch was adapted from GUIX.
At the moment we still have to rely on GTK_DATA_PREFIX, which can only
point to one profile at the time and is also not set in all desktop
environments. This patch makes it possible to use installed themes, no
matter if system-wide or by in a user profile.
This commit is contained in:
Jörg Thalheim 2017-05-18 06:26:56 +01:00
parent afec912d81
commit 1810b3f64b
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2 changed files with 41 additions and 1 deletions

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@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
nativeBuildInputs = [ setupHook perl pkgconfig gettext ]; nativeBuildInputs = [ setupHook perl pkgconfig gettext ];
patches = [ ./2.0-immodules.cache.patch ]; patches = [ ./2.0-immodules.cache.patch ./gtk2-theme-paths.patch ];
propagatedBuildInputs = with xorg; propagatedBuildInputs = with xorg;
[ glib cairo pango gdk_pixbuf atk ] [ glib cairo pango gdk_pixbuf atk ]

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@ -0,0 +1,40 @@
Subject: [PATCHv2] gtk: Patch GTK+ to look for themes in profiles.
To: guix-devel@gnu.org
Date: Sun, 13 Mar 2016 15:17:37 +1100
Url: https://lists.gnu.org/archive/html/guix-devel/2016-03/msg00492.html
diff -Naur gtk+-2.24.28.new/gtk/gtkrc.c gtk+-2.24.28/gtk/gtkrc.c
--- gtk+-2.24.28.new/gtk/gtkrc.c 2016-03-13 10:31:14.413644362 +1100
+++ gtk+-2.24.28/gtk/gtkrc.c 2016-03-13 12:51:34.723398423 +1100
@@ -808,6 +808,8 @@
gchar *path = NULL;
const gchar *home_dir;
gchar *subpath;
+ const gchar * const *xdg_data_dirs;
+ gint i;
if (type)
subpath = g_strconcat ("gtk-2.0-", type,
@@ -830,6 +832,22 @@
}
if (!path)
+ {
+ xdg_data_dirs = g_get_system_data_dirs ();
+ for (i = 0; xdg_data_dirs[i]; i++)
+ {
+ path = g_build_filename (xdg_data_dirs[i], "themes", name, subpath, NULL);
+ if (g_file_test (path, G_FILE_TEST_EXISTS))
+ break;
+ else
+ {
+ g_free (path);
+ path = NULL;
+ }
+ }
+ }
+
+ if (!path)
{
gchar *theme_dir = gtk_rc_get_theme_dir ();
path = g_build_filename (theme_dir, name, subpath, NULL);