[gnome-builder] glade: add helper to save project for view

[Christian Hergert <chergert src gnome org>]

commit 536a5936af34be5c5eeaa1ea3b0ff5823d325241
Author: Christian Hergert <chergert redhat com>
Date:   Mon Oct 22 13:56:54 2018 -0700

    glade: add helper to save project for view

 src/plugins/glade/gbp-glade-private.h      |  6 ++++--
 src/plugins/glade/gbp-glade-view-actions.c |  9 +--------
 src/plugins/glade/gbp-glade-view.c         | 22 ++++++++++++++++++++++
 3 files changed, 27 insertions(+), 10 deletions(-)
---
diff --git a/src/plugins/glade/gbp-glade-private.h b/src/plugins/glade/gbp-glade-private.h
index b66bb3008..debbbea8c 100644
--- a/src/plugins/glade/gbp-glade-private.h
+++ b/src/plugins/glade/gbp-glade-private.h
@@ -37,7 +37,9 @@ struct _GbpGladeView
   GladeAdaptorChooser *chooser;
 };
 
-void _gbp_glade_view_init_actions   (GbpGladeView *self);
-void _gbp_glade_view_init_shortcuts (GtkWidget    *widget);
+void     _gbp_glade_view_init_actions   (GbpGladeView  *self);
+void     _gbp_glade_view_init_shortcuts (GtkWidget     *widget);
+gboolean _gbp_glade_view_save           (GbpGladeView  *self,
+                                         GError       **error);
 
 G_END_DECLS
diff --git a/src/plugins/glade/gbp-glade-view-actions.c b/src/plugins/glade/gbp-glade-view-actions.c
index 143b3b38e..41f5105dd 100644
--- a/src/plugins/glade/gbp-glade-view-actions.c
+++ b/src/plugins/glade/gbp-glade-view-actions.c
@@ -33,18 +33,11 @@ gbp_glade_view_action_save (GSimpleAction *action,
 {
   GbpGladeView *self = user_data;
   g_autoptr(GError) error = NULL;
-  const gchar *path;
 
   g_assert (G_IS_SIMPLE_ACTION (action));
   g_assert (GBP_IS_GLADE_VIEW (self));
 
-  if (self->file == NULL || !(path = g_file_peek_path (self->file)))
-    {
-      g_warning ("GbpGladeView is missing a file");
-      return;
-    }
-
-  if (!glade_project_save (self->project, path, &error))
+  if (!_gbp_glade_view_save (self, &error))
     /* translators: %s is replaced with the specific error message */
     ide_widget_warning (self, _("Failed to save glade document: %s"), error->message);
 }
diff --git a/src/plugins/glade/gbp-glade-view.c b/src/plugins/glade/gbp-glade-view.c
index f14556051..f7e77f7e4 100644
--- a/src/plugins/glade/gbp-glade-view.c
+++ b/src/plugins/glade/gbp-glade-view.c
@@ -42,6 +42,28 @@ gbp_glade_view_new (void)
   return g_object_new (GBP_TYPE_GLADE_VIEW, NULL);
 }
 
+gboolean
+_gbp_glade_view_save (GbpGladeView  *self,
+                      GError       **error)
+{
+  const gchar *path;
+
+  g_return_val_if_fail (GBP_IS_GLADE_VIEW (self), FALSE);
+  g_return_val_if_fail (GLADE_IS_PROJECT (self->project), FALSE);
+
+  if (self->file == NULL || !(path = g_file_peek_path (self->file)))
+    {
+      /* Implausible path */
+      g_set_error (error,
+                   G_IO_ERROR,
+                   G_IO_ERROR_NOT_FOUND,
+                   "No file has been set for the view");
+      return FALSE;
+    }
+
+  return glade_project_save (self->project, path, error);
+}
+
 static void
 viewport_style_changed_cb (GbpGladeView    *self,
                            GtkStyleContext *style_context)