[gnome-software] Do not try to set custom CSS when the application has no featured data

[Richard Hughes <rhughes src gnome org>]

commit 8f79f39463a81e1b6182476a3498ab8d9d8dfc95
Author: Richard Hughes <richard hughsie com>
Date:   Wed Oct 30 09:12:35 2013 +0000

    Do not try to set custom CSS when the application has no featured data
    
    This is probably masking another bug somewhere, but at least now gnome-software
    doesn't cause the CSS parser to explode.

 src/gs-feature-tile.c |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/src/gs-feature-tile.c b/src/gs-feature-tile.c
index 1b2c07c..38a723a 100644
--- a/src/gs-feature-tile.c
+++ b/src/gs-feature-tile.c
@@ -97,6 +97,7 @@ void
 gs_feature_tile_set_app (GsFeatureTile *tile, GsApp *app)
 {
        GsFeatureTilePrivate *priv;
+       const gchar *tmp;
        gchar *data;
 
        g_return_if_fail (GS_IS_FEATURE_TILE (tile));
@@ -118,6 +119,16 @@ gs_feature_tile_set_app (GsFeatureTile *tile, GsApp *app)
 
        gtk_label_set_label (GTK_LABEL (priv->title), gs_app_get_name (app));
        gtk_label_set_label (GTK_LABEL (priv->subtitle), gs_app_get_summary (app));
+
+       /* check the app has the featured data */
+       tmp = gs_app_get_metadata_item (app, "Featured::text-color");
+       if (tmp == NULL) {
+               data = gs_app_to_string (app);
+               g_warning ("%s has no featured data: %s",
+                          gs_app_get_id (app), data);
+               goto out;
+       }
+
        data = g_strdup_printf (
                ".button.featured-tile {\n"
                "  padding: 0;\n"
@@ -142,8 +153,8 @@ gs_feature_tile_set_app (GsFeatureTile *tile, GsApp *app)
                gs_app_get_metadata_item (app, "Featured::text-color"),
                gs_app_get_metadata_item (app, "Featured::background"),
                gs_app_get_metadata_item (app, "Featured::background"));
-
        gtk_css_provider_load_from_data (priv->provider, data, -1, NULL);
+out:
        g_free (data);
 }