[gtk/gtk-4-6: 2/3] GtkFileChooserWidget: return empty GListModel in get_files () instead of NULL

[Luca Bacci <lbacci src gnome org>]

commit f0120700dc872043c6828678870446df82382901
Author: Luca Bacci <luca bacci982 gmail com>
Date:   Sun May 1 16:41:10 2022 +0200

    GtkFileChooserWidget: return empty GListModel in get_files () instead of NULL

 gtk/gtkfilechooserwidget.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 4c34c49840..34e34734d3 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -5466,7 +5466,7 @@ gtk_file_chooser_widget_get_files (GtkFileChooser *chooser)
         goto out;
 
       if (!is_well_formed)
-        return NULL;
+        goto empty;
 
       if (info.file_from_entry)
         {
@@ -5476,7 +5476,7 @@ gtk_file_chooser_widget_get_files (GtkFileChooser *chooser)
       else if (!file_list_seen)
         goto file_list;
       else
-        return NULL;
+        goto empty;
     }
   else if (impl->toplevel_last_focus_widget == impl->browse_files_tree_view)
     goto file_list;
@@ -5508,6 +5508,11 @@ gtk_file_chooser_widget_get_files (GtkFileChooser *chooser)
     }
 
   return G_LIST_MODEL (info.result);
+
+empty:
+
+  g_list_store_remove_all (info.result);
+  return G_LIST_MODEL (info.result);
 }
 
 /* Shows or hides the filter widgets */