Fontviewer: font-model, set a fallback icon if we fail to read the thumbnail

In case we fail to read the thumbnail, set the fallback icon instead of
just returning.

taken from:
https://git.gnome.org/browse/gnome-font-viewer/commit/?id=7ed08a3

1 files changed, 20 insertions, 3 deletions

diff --git a/font-viewer/font-model.c b/font-viewer/font-model.c
index 5013d451..13dc94ca 100644
--- a/font-viewer/font-model.c
+++ b/font-viewer/font-model.c
@@ -240,6 +240,14 @@ typedef struct {
 } LoadThumbnailData;
 
 static void
+load_thumbnail_data_free (LoadThumbnailData *data)
+{
+    g_object_unref (data->self);
+    g_free (data->font_path);
+    g_slice_free (LoadThumbnailData, data);
+}
+
+static void
 thumbnail_ready_cb (GObject *source,
                     GAsyncResult *res,
                     gpointer user_data)
@@ -300,6 +308,7 @@ pixbuf_async_ready_cb (GObject *source,
     LoadThumbnailData *data = user_data;
     GdkPixbuf *pix;
     GtkTreeIter iter;
+    GFile *file;
 
     pix = gdk_pixbuf_new_from_stream_finish (res, NULL);
 
@@ -310,11 +319,13 @@ pixbuf_async_ready_cb (GObject *source,
                                 -1);
 
         g_object_unref (pix);
+    } else {
+        file = g_file_new_for_path (data->font_path);
+        set_fallback_icon (data->self, file);
+        g_object_unref (file);
     }
 
-    g_object_unref (data->self);
-    g_free (data->font_path);
-    g_slice_free (LoadThumbnailData, data);
+    load_thumbnail_data_free (data);
 }
 
 static void
@@ -333,6 +344,9 @@ thumb_file_read_async_ready_cb (GObject *source,
                                                    128, 128, TRUE,
                                                    NULL, pixbuf_async_ready_cb, data);
         g_object_unref (is);
+    } else {
+        set_fallback_icon (data->self, G_FILE (source));
+        load_thumbnail_data_free (data);
     }
 }
 
@@ -416,6 +430,9 @@ ensure_font_list (FontViewModel *self)
 	FcPatternGetString (self->priv->font_list->fonts[i], FC_FILE, 0, &file);
         font_name = font_utils_get_font_name_for_file (self->priv->library, (const gchar *) file);
 
+        if (!font_name)
+            continue;
+
         gtk_list_store_append (GTK_LIST_STORE (self), &iter);
         gtk_list_store_set (GTK_LIST_STORE (self), &iter,
                             COLUMN_NAME, font_name,