src/settings.vala: make SingleInstance class.

This way, we will be able to use it everywhere, as long as we hold a
reference in the main greeter object.

We will extend this class with other properties later on.

2 files changed, 20 insertions, 1 deletions

diff --git a/src/arctica-greeter.vala b/src/arctica-greeter.vala
index 96a98ce..09c1feb 100644
--- a/src/arctica-greeter.vala
+++ b/src/arctica-greeter.vala
@@ -807,6 +807,16 @@ public class ArcticaGreeter
         if (value != "")
             settings.set ("gtk-xft-rgba", value, null);
 
+        /*
+         * Keep a reference to an AGSettings instance for the whole program
+         * run, so that the SingleInstance property is working the way we'd
+         * like it to work.
+         *
+         * We want to do this before creating the actual greeter, since the
+         * latter is using AGSettings quite extensively.
+         */
+        var agsettings = new AGSettings ();
+
         debug ("Creating Arctica Greeter");
         var greeter = new ArcticaGreeter (do_test_mode);
 
diff --git a/src/settings.vala b/src/settings.vala
index 701d5a1..3c50bbc 100644
--- a/src/settings.vala
+++ b/src/settings.vala
@@ -2,6 +2,7 @@
  *
  * Copyright (C) 2011,2012 Canonical Ltd
  * Copyright (C) 2015,2017 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
+ * Copyright (C) 2022 Mihai Moldovan <ionic@ionic.de>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
@@ -20,7 +21,8 @@
  *          Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
  */
 
-public class AGSettings
+[SingleInstance]
+public class AGSettings : Object
 {
     public const string KEY_BACKGROUND = "background";
     public const string KEY_BACKGROUND_COLOR = "background-color";
@@ -105,5 +107,12 @@ public class AGSettings
         return gsettings.set_strv (key, value);
     }
 
+    public AGSettings ()
+    {
+    }
+
+    construct {
+    }
+
     private const string SCHEMA = "org.ArcticaProject.arctica-greeter";
 }