[gtk+] Don't do remote checks on NULL files

[Руслан Ижбулатов <ruslanizhb src gnome org>]

commit 4a49d8d14fa8a3e037364eb231f25c2e8bce0fa5
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Thu Feb 4 11:23:12 2016 +0000

    Don't do remote checks on NULL files
    
    Calling _gtk_file_consider_as_remote() with a NULL argument
    results in warnings being thrown.
    
    Note that query->priv->location being NULL is a state that does
    not seem to be invalid by itself.
    
    This could happen if you do search-as-you-type in a filechooser,
    which has a filter that does not match anything *and* the current
    "place" selected is "Recent".
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761552

 gtk/gtkfilechooserwidget.c  |    3 ++-
 gtk/gtksearchenginesimple.c |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index d1a2ed8..c77a8b7 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -7340,7 +7340,8 @@ search_start_query (GtkFileChooserWidget *impl,
 
   _gtk_search_engine_start (priv->search_engine);
 
-  if (_gtk_file_consider_as_remote (gtk_query_get_location (priv->search_query)))
+  if (gtk_query_get_location (priv->search_query) &&
+      _gtk_file_consider_as_remote (gtk_query_get_location (priv->search_query)))
     gtk_widget_show (priv->remote_warning_bar);
 }
 
diff --git a/gtk/gtksearchenginesimple.c b/gtk/gtksearchenginesimple.c
index b80af31..6daf2f8 100644
--- a/gtk/gtksearchenginesimple.c
+++ b/gtk/gtksearchenginesimple.c
@@ -92,7 +92,8 @@ static void
 queue_if_local (SearchThreadData *data,
                 GFile            *file)
 {
-  if (!_gtk_file_consider_as_remote (file) &&
+  if (file &&
+      !_gtk_file_consider_as_remote (file) &&
       !g_file_has_uri_scheme (file, "recent"))
     g_queue_push_tail (data->directories, g_object_ref (file));
 }