[gnome-builder] glade: add get_file() helper for glade view

[Christian Hergert <chergert src gnome org>]

commit 4b144881ad8f882f1ef2d7c5f12d2eeacd43c0d6
Author: Christian Hergert <chergert redhat com>
Date:   Sun Oct 21 12:01:23 2018 -0700

    glade: add get_file() helper for glade view

 src/plugins/glade/gbp-glade-view.c | 13 +++++++++++++
 src/plugins/glade/gbp-glade-view.h |  1 +
 2 files changed, 14 insertions(+)
---
diff --git a/src/plugins/glade/gbp-glade-view.c b/src/plugins/glade/gbp-glade-view.c
index 1eeb541b6..92436a85c 100644
--- a/src/plugins/glade/gbp-glade-view.c
+++ b/src/plugins/glade/gbp-glade-view.c
@@ -204,3 +204,16 @@ gbp_glade_view_load_file_finish (GbpGladeView  *self,
 
   return ide_task_propagate_boolean (IDE_TASK (result), error);
 }
+
+/**
+ * gbp_glade_view_get_file:
+ *
+ * Returns: (nullable) (transfer none): a #GFile or %NULL
+ */
+GFile *
+gbp_glade_view_get_file (GbpGladeView *self)
+{
+  g_return_val_if_fail (GBP_IS_GLADE_VIEW (self), NULL);
+
+  return self->file;
+}
diff --git a/src/plugins/glade/gbp-glade-view.h b/src/plugins/glade/gbp-glade-view.h
index c82a447ac..c0f8a276f 100644
--- a/src/plugins/glade/gbp-glade-view.h
+++ b/src/plugins/glade/gbp-glade-view.h
@@ -30,6 +30,7 @@ G_BEGIN_DECLS
 G_DECLARE_FINAL_TYPE (GbpGladeView, gbp_glade_view, GBP, GLADE_VIEW, IdeLayoutView)
 
 GbpGladeView *gbp_glade_view_new              (void);
+GFile        *gbp_glade_view_get_file         (GbpGladeView         *self);
 void          gbp_glade_view_load_file_async  (GbpGladeView         *self,
                                                GFile                *file,
                                                GCancellable         *cancellable,