[gnome-games/wip/exalm/metadata: 16/21] grilo-rating: Provide empty value

[Alexander Mikhaylenko <alexm src gnome org>]

commit ed7240bdbc2ab7e46161b2bc8b4176c9f9d521f4
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Tue Oct 9 02:30:40 2018 +0500

    grilo-rating: Provide empty value
    
    Return 0 instead of null while it's loading.

 src/grilo/grilo-rating.vala | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/grilo/grilo-rating.vala b/src/grilo/grilo-rating.vala
index 73042066..bf0347a2 100644
--- a/src/grilo/grilo-rating.vala
+++ b/src/grilo/grilo-rating.vala
@@ -4,19 +4,21 @@ public class Games.GriloRating : Object, Rating {
        private GriloMedia media;
        private float rating;
        private bool resolving;
+       private bool resolved;
 
        public GriloRating (GriloMedia media) {
                this.media = media;
                media.resolved.connect (on_media_resolved);
-               resolving = false;
+               rating = 0;
        }
 
        public float get_rating () {
-               if (resolving)
+               if (resolving || resolved)
                        return rating;
 
                resolving = true;
                media.try_resolve_media ();
+
                return rating;
        }
 
@@ -36,6 +38,8 @@ public class Games.GriloRating : Object, Rating {
        private void load_media_rating (float media_rating) {
                rating = media_rating;
 
+               resolved = true;
+
                changed ();
        }
 }