[gnome-games/wip/theawless/simplify-thumbnail: 73/77] game-thumbnail: Add IconInfo null checks

[Abhinav Singh <abhinavsingh src gnome org>]

commit 823cf1295a7d329a3d7206e46a0c464b8bb69080
Author: theawless <theawless gmail com>
Date:   Tue Oct 2 16:22:25 2018 +0530

    game-thumbnail: Add IconInfo null checks
    
    Also improve the related warning messages.

 src/ui/game-thumbnail.vala | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)
---
diff --git a/src/ui/game-thumbnail.vala b/src/ui/game-thumbnail.vala
index 1a617452..91ae76a7 100644
--- a/src/ui/game-thumbnail.vala
+++ b/src/ui/game-thumbnail.vala
@@ -152,11 +152,16 @@ private class Games.GameThumbnail: Gtk.DrawingArea {
 
                var theme = Gtk.IconTheme.get_default ();
                var size = int.min (context.width, context.height) * scale;
+               var icon_info = theme.lookup_icon (icon_name, (int) size, Gtk.IconLookupFlags.FORCE_SIZE);
+
+               if (icon_info == null) {
+                       warning ("Couldn't find the emblem");
+                       return;
+               }
                try {
-                       var icon_info = theme.lookup_icon (icon_name, (int) size, 
Gtk.IconLookupFlags.FORCE_SIZE);
                        emblem = icon_info.load_symbolic (color);
-               } catch (Error error) {
-                       warning (@"Unable to get icon “$icon_name”: $(error.message)");
+               } catch (Error e) {
+                       warning (@"Couldn’t load the emblem: $(e.message)");
                        return;
                }
 
@@ -179,14 +184,15 @@ private class Games.GameThumbnail: Gtk.DrawingArea {
                var size = int.min (context.width, context.height) * scale;
                var icon_info = theme.lookup_by_gicon (icon, (int) size, lookup_flags);
 
-               if (icon_info == null)
+               if (icon_info == null) {
+                       warning ("Couldn't find the icon");
                        return null;
-
+               }
                try {
                        return icon_info.load_icon ();
                }
                catch (Error e) {
-                       warning (@"Couldn’t load the icon: $(e.message)\n");
+                       warning (@"Couldn’t load the icon: $(e.message)");
                        return null;
                }
        }
@@ -221,12 +227,16 @@ private class Games.GameThumbnail: Gtk.DrawingArea {
                var lookup_flags = Gtk.IconLookupFlags.FORCE_SIZE | Gtk.IconLookupFlags.FORCE_REGULAR;
                var icon_info = theme.lookup_by_gicon (g_icon, (int) size, lookup_flags);
 
+               if (icon_info == null) {
+                       warning ("Couldn't find the cover");
+                       return null;
+               }
                try {
                        cover_cache = icon_info.load_icon ();
                        save_cover_cache_to_disk (size);
                }
                catch (Error e) {
-                       warning (@"Couldn’t load the icon: $(e.message)\n");
+                       warning (@"Couldn’t load the cover: $(e.message)");
                }
 
                return cover_cache;