[gnome-software] Allow gs_app_set_icon_name() to open non-themed icons

[Richard Hughes <rhughes src gnome org>]

commit e1c1cf969d5c88695aa2a40d9091cddff827badc
Author: Richard Hughes <richard hughsie com>
Date:   Thu Oct 17 20:21:28 2013 +0100

    Allow gs_app_set_icon_name() to open non-themed icons

 src/gs-app.c |   20 +++++++++++++-------
 1 files changed, 13 insertions(+), 7 deletions(-)
---
diff --git a/src/gs-app.c b/src/gs-app.c
index ddb1a9b..d6322b4 100644
--- a/src/gs-app.c
+++ b/src/gs-app.c
@@ -566,13 +566,19 @@ gs_app_set_icon_name (GsApp *app, const gchar *icon_name, GError **error)
        g_return_val_if_fail (GS_IS_APP (app), FALSE);
        g_return_val_if_fail (icon_name != NULL, FALSE);
 
-       /* just load from the theme */
-       pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
-                                          icon_name,
-                                          64,
-                                          GTK_ICON_LOOKUP_USE_BUILTIN |
-                                          GTK_ICON_LOOKUP_FORCE_SIZE,
-                                          error);
+       /* either load from the theme or from a file */
+       if (icon_name[0] == '/') {
+               pixbuf = gdk_pixbuf_new_from_file_at_size (icon_name,
+                                                          64, 64,
+                                                          error);
+       } else {
+               pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+                                                  icon_name,
+                                                  64,
+                                                  GTK_ICON_LOOKUP_USE_BUILTIN |
+                                                  GTK_ICON_LOOKUP_FORCE_SIZE,
+                                                  error);
+       }
        if (pixbuf == NULL) {
                ret = FALSE;
                goto out;