[gnome-builder] layout-grid: focus current column after removing column

[Christian Hergert <chergert src gnome org>]

commit ee35c258688c77a22fb540661daf008b66a8365d
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jan 27 01:43:20 2018 -0800

    layout-grid: focus current column after removing column
    
    This fixes an issue when closing a layout column which resulted in the
    widget grab being cleared.
    
    Fixes #376

 src/libide/layout/ide-layout-grid.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
---
diff --git a/src/libide/layout/ide-layout-grid.c b/src/libide/layout/ide-layout-grid.c
index ea9b52819..66ba4a4a1 100644
--- a/src/libide/layout/ide-layout-grid.c
+++ b/src/libide/layout/ide-layout-grid.c
@@ -431,7 +431,14 @@ ide_layout_grid_remove (GtkContainer *container,
   ide_layout_grid_update_actions (self);
 
   if (notify)
-    g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_CURRENT_COLUMN]);
+    {
+      GtkWidget *head = g_queue_peek_head (&priv->focus_column);
+
+      if (head != NULL)
+        gtk_widget_grab_focus (head);
+
+      g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_CURRENT_COLUMN]);
+    }
 }
 
 static inline gboolean