[gtksourceview/wip/encodings: 6/6] Ensure that UTF-8 and CURRENT are present in the candidate encodings

[Sébastien Wilmet <swilmet src gnome org>]

commit 68a073eb10c320096f9c9026563162e513efdee8
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Aug 10 21:59:40 2014 +0200

    Ensure that UTF-8 and CURRENT are present in the candidate encodings
    
    In the gedit translations, CURRENT was sometimes translated (and there
    is a translator comment to explain that it should not be translated...).
    So it's better to ensure that UTF-8 and CURRENT are present, just in
    case.

 gtksourceview/gtksourceencoding.c |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/gtksourceview/gtksourceencoding.c b/gtksourceview/gtksourceencoding.c
index 40421e4..acf9e7b 100644
--- a/gtksourceview/gtksourceencoding.c
+++ b/gtksourceview/gtksourceencoding.c
@@ -613,7 +613,8 @@ _gtk_source_encoding_remove_duplicates (GSList                      *encodings,
  * gtk_source_file_loader_set_candidate_encodings().
  *
  * This function returns a different list depending on the current locale (i.e.
- * language, country and default encoding).
+ * language, country and default encoding). The UTF-8 encoding and the current
+ * locale encoding are guaranteed to be present in the returned list.
  *
  * Returns: (transfer container) (element-type GtkSource.Encoding): the list of
  * default candidate encodings. Free with g_slist_free().
@@ -649,6 +650,16 @@ gtk_source_encoding_get_default_candidates (void)
 
        encodings_list = strv_to_list (encodings_strv);
 
+       /* Ensure that UTF-8 and CURRENT are present. */
+       encodings_list = g_slist_prepend (encodings_list,
+                                         (gpointer) gtk_source_encoding_get_current ());
+
+       encodings_list = g_slist_prepend (encodings_list,
+                                         (gpointer) &utf8_encoding);
+
+       encodings_list = _gtk_source_encoding_remove_duplicates (encodings_list,
+                                                                GTK_SOURCE_ENCODING_DUPLICATES_KEEP_LAST);
+
        g_variant_unref (encodings_variant);
        return encodings_list;
 }