[gthumb] rename folder: use the display name if the edit name is not available

[Paolo Bacchilega <paobac src gnome org>]

commit eaba0a7fb86c05f81baf1a5c796b26e897544419
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Jul 1 19:27:32 2017 +0200

    rename folder: use the display name if the edit name is not available

 gthumb/gth-folder-tree.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/gthumb/gth-folder-tree.c b/gthumb/gth-folder-tree.c
index bcec3f2..606db85 100644
--- a/gthumb/gth-folder-tree.c
+++ b/gthumb/gth-folder-tree.c
@@ -1887,6 +1887,7 @@ gth_folder_tree_start_editing (GthFolderTree *folder_tree,
        RenameData  *data;
        GtkWidget   *toplevel;
        GtkWidget   *dialog;
+       const char  *edit_name;
 
        if (! gth_folder_tree_get_iter (folder_tree, file, &iter, NULL))
                return;
@@ -1914,8 +1915,11 @@ gth_folder_tree_start_editing (GthFolderTree *folder_tree,
                            &iter,
                            COLUMN_FILE_DATA, &file_data,
                            -1);
-       gtk_entry_set_text (GTK_ENTRY (gth_request_dialog_get_entry (GTH_REQUEST_DIALOG (dialog))),
-                           g_file_info_get_edit_name (file_data->info));
+       edit_name = g_file_info_get_edit_name (file_data->info);
+       if (edit_name == NULL)
+               edit_name = g_file_info_get_display_name (file_data->info);
+       if (edit_name != NULL)
+               gtk_entry_set_text (GTK_ENTRY (gth_request_dialog_get_entry (GTH_REQUEST_DIALOG (dialog))), 
edit_name);
 
        gtk_widget_show (dialog);