[gnome-software] Do not hardcode GNOME when setting QUIRK_COMPULSORY

[Richard Hughes <rhughes src gnome org>]

commit 5c46df640e4f1c141531f3289881b7e8ee8852a7
Author: Richard Hughes <richard hughsie com>
Date:   Tue Sep 20 12:16:10 2016 +0100

    Do not hardcode GNOME when setting QUIRK_COMPULSORY

 src/plugins/gs-appstream.c |   24 +++++++++++++++++++++---
 1 files changed, 21 insertions(+), 3 deletions(-)
---
diff --git a/src/plugins/gs-appstream.c b/src/plugins/gs-appstream.c
index f264fb8..3767519 100644
--- a/src/plugins/gs-appstream.c
+++ b/src/plugins/gs-appstream.c
@@ -497,6 +497,18 @@ gs_appstream_get_bundle_kind (AsApp *item)
        return AS_BUNDLE_KIND_UNKNOWN;
 }
 
+static gboolean
+gs_utils_is_current_desktop (const gchar *name)
+{
+       const gchar *tmp;
+       g_auto(GStrv) names = NULL;
+       tmp = g_getenv ("XDG_CURRENT_DESKTOP");
+       if (tmp == NULL)
+               return FALSE;
+       names = g_strsplit (tmp, ":", -1);
+       return g_strv_contains ((const gchar * const *) names, name);
+}
+
 gboolean
 gs_appstream_refine_app (GsPlugin *plugin,
                         GsApp *app,
@@ -504,6 +516,7 @@ gs_appstream_refine_app (GsPlugin *plugin,
                         GError **error)
 {
        GHashTable *urls;
+       GPtrArray *array;
        GPtrArray *pkgnames;
        GPtrArray *kudos;
        const gchar *tmp;
@@ -640,9 +653,14 @@ gs_appstream_refine_app (GsPlugin *plugin,
                gs_app_set_project_group (app, as_app_get_project_group (item));
 
        /* this is a core application for the desktop and cannot be removed */
-       if (as_app_has_compulsory_for_desktop (item, "GNOME") &&
-           gs_app_get_kind (app) == AS_APP_KIND_DESKTOP)
-               gs_app_add_quirk (app, AS_APP_QUIRK_COMPULSORY);
+       array = as_app_get_compulsory_for_desktops (item);
+       for (i = 0; i < array->len; i++) {
+               tmp = g_ptr_array_index (array, i);
+               if (gs_utils_is_current_desktop (tmp)) {
+                       gs_app_add_quirk (app, AS_APP_QUIRK_COMPULSORY);
+                       break;
+               }
+       }
 
        /* set id kind */
        if (gs_app_get_kind (app) == AS_APP_KIND_UNKNOWN)