[gtksourceview] Select the default scheme if the previous one was removed

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 68284a69047f02dbd7005f16639aaf1e049b4d65
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Tue Dec 30 23:33:12 2014 +0100

    Select the default scheme if the previous one was removed

 gtksourceview/gtksourcestyleschemechooserwidget.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcestyleschemechooserwidget.c 
b/gtksourceview/gtksourcestyleschemechooserwidget.c
index 60c773c..af35a5c 100644
--- a/gtksourceview/gtksourcestyleschemechooserwidget.c
+++ b/gtksourceview/gtksourcestyleschemechooserwidget.c
@@ -196,6 +196,7 @@ gtk_source_style_scheme_chooser_widget_populate (GtkSourceStyleSchemeChooserWidg
        GtkSourceStyleSchemeManager *manager;
        const gchar * const *scheme_ids;
        guint i;
+       gboolean row_selected = FALSE;
 
        gtk_container_foreach (GTK_CONTAINER (priv->list_box),
                               (GtkCallback)gtk_widget_destroy,
@@ -221,8 +222,17 @@ gtk_source_style_scheme_chooser_widget_populate (GtkSourceStyleSchemeChooserWidg
                        g_signal_handlers_block_by_func (priv->list_box, on_row_selected, widget);
                        gtk_list_box_select_row (priv->list_box, GTK_LIST_BOX_ROW (row));
                        g_signal_handlers_unblock_by_func (priv->list_box, on_row_selected, widget);
+
+                       row_selected = TRUE;
                }
        }
+
+       /* The current scheme may have been removed so select the default one */
+       if (!row_selected)
+       {
+               gtk_source_style_scheme_chooser_set_style_scheme (GTK_SOURCE_STYLE_SCHEME_CHOOSER (widget),
+                                                                 _gtk_source_style_scheme_get_default ());
+       }
 }
 
 static void