[gnome-control-center] region: trigger the layout chooser dialog response on 'row-activated' signal

[Sergey V. Udaltsov <svu src gnome org>]

commit 22f7c182bd6c2fc3380c8b59226b5aa94156e989
Author: Rui Matos <tiagomatos gmail com>
Date:   Sun Jun 12 22:45:05 2011 +0100

    region: trigger the layout chooser dialog response on 'row-activated' signal
    
    Allows the user to choose a new layout by double clicking or hitting enter.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=652409

 panels/region/gnome-region-panel-xkbltadd.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/panels/region/gnome-region-panel-xkbltadd.c b/panels/region/gnome-region-panel-xkbltadd.c
index c2a3dc4..15fe02b 100644
--- a/panels/region/gnome-region-panel-xkbltadd.c
+++ b/panels/region/gnome-region-panel-xkbltadd.c
@@ -301,6 +301,19 @@ xkb_layout_chooser_selection_changed (GtkTreeSelection * selection,
 	gtk_widget_set_sensitive (preview_button, anything_selected);
 }
 
+static void
+xkb_layout_chooser_row_activated (GtkTreeView	    *tree_view,
+				  GtkTreePath	    *path,
+				  GtkTreeViewColumn *column,
+				  GtkBuilder	    *chooser_dialog)
+{
+	GtkWidget *add_button = CWID ("btnOk");
+	GtkWidget *dialog = CWID ("xkb_layout_chooser");
+
+	if (gtk_widget_is_sensitive (add_button))
+		gtk_dialog_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
+}
+
 static gboolean
 xkb_filter_layouts (GtkTreeModel * model,
 		    GtkTreeIter * iter, gpointer data)
@@ -401,6 +414,9 @@ xkb_layout_choose (GtkBuilder * dialog)
 
 	xkb_layout_chooser_selection_changed (selection, chooser_dialog);
 
+	g_signal_connect (G_OBJECT (xkb_filtered_layouts_list), "row-activated",
+			  G_CALLBACK (xkb_layout_chooser_row_activated), chooser_dialog);
+
 	filtered_model =
 	    GTK_TREE_MODEL_FILTER (gtk_builder_get_object
 				   (chooser_dialog,