Allow utf8 in roster contact char

src/config/preferences.c

@@ -1110,30 +1110,22 @@ prefs_clear_roster_header_char(void)
     g_key_file_remove_key(prefs, PREF_GROUP_UI, "roster.header.char", NULL);
 }
 
-char
+char*
 prefs_get_roster_contact_char(void)
 {
-    char result = 0;
-
-    char* resultstr = g_key_file_get_string(prefs, PREF_GROUP_UI, "roster.contact.char", NULL);
-    if (!resultstr) {
-        result = 0;
-    } else {
-        result = resultstr[0];
-    }
-    free(resultstr);
+    char* result = g_key_file_get_string(prefs, PREF_GROUP_UI, "roster.contact.char", NULL);
 
     return result;
 }
 
 void
-prefs_set_roster_contact_char(char ch)
+prefs_set_roster_contact_char(char* ch)
 {
-    char str[2];
-    str[0] = ch;
-    str[1] = '\0';
-
-    g_key_file_set_string(prefs, PREF_GROUP_UI, "roster.contact.char", str);
+    if (g_utf8_strlen(ch, 4) == 1) {
+        g_key_file_set_string(prefs, PREF_GROUP_UI, "roster.contact.char", ch);
+    } else {
+        log_error("Could not set roster contact char: %s", ch);
+    }
 }
 
 void

src/config/preferences.h

@@ -257,8 +257,8 @@ gboolean prefs_set_ox_char(char* ch);
 char* prefs_get_roster_header_char(void);
 void prefs_set_roster_header_char(char* ch);
 void prefs_clear_roster_header_char(void);
-char prefs_get_roster_contact_char(void);
-void prefs_set_roster_contact_char(char ch);
+char* prefs_get_roster_contact_char(void);
+void prefs_set_roster_contact_char(char* ch);
 void prefs_clear_roster_contact_char(void);
 char prefs_get_roster_resource_char(void);
 void prefs_set_roster_resource_char(char ch);

src/config/theme.c

@@ -430,8 +430,8 @@ _load_preferences(void)
 
     if (g_key_file_has_key(theme, "ui", "roster.contact.char", NULL)) {
         gchar* ch = g_key_file_get_string(theme, "ui", "roster.contact.char", NULL);
-        if (ch && strlen(ch) > 0) {
-            prefs_set_roster_contact_char(ch[0]);
+        if (ch && g_utf8_strlen(ch, 4) == 1) {
+            prefs_set_roster_contact_char(ch);
             g_free(ch);
         }
     }