[baobab/add-notification: 1/3] application: Make sure only one window is created

[Stefano Facchini <sfacchini src gnome org>]

commit ede655f829fc7d5bf30219735b2e413d0d6e7395
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Wed Oct 10 15:46:15 2018 +0200

    application: Make sure only one window is created

 src/baobab-application.vala | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/src/baobab-application.vala b/src/baobab-application.vala
index d895f76..5fb6d24 100644
--- a/src/baobab-application.vala
+++ b/src/baobab-application.vala
@@ -24,6 +24,8 @@ namespace Baobab {
 
     public class Application : Gtk.Application {
 
+        private Window window;
+
         const OptionEntry[] option_entries = {
             { "version", 'v', 0, OptionArg.NONE, null, N_("Print version information and exit"), null },
             { null }
@@ -34,13 +36,18 @@ namespace Baobab {
         };
 
         protected override void activate () {
-            new Window (this);
+            ensure_window ();
+            window.present ();
         }
 
         protected override void open (File[] files, string hint) {
-            foreach (var file in files) {
-                var window = new Window (this);
-                window.scan_directory (file, ScanFlags.EXCLUDE_MOUNTS);
+            ensure_window ();
+            window.scan_directory (files[0], ScanFlags.EXCLUDE_MOUNTS);
+        }
+
+        void ensure_window () {
+            if (window == null) {
+                window = new Window (this);
             }
         }