Avoid duplicated instances of GLib.Settings

Author: ryonakano

src/Indicator/Indicator.vala

@@ -5,14 +5,18 @@
 
 // TODO: Change namespace
 public class Monitor.Indicator : Wingpanel.Indicator {
+    public static Settings settings;
+
     private Widgets.DisplayWidget ? display_widget = null;
     private Widgets.PopoverWidget ? popover_widget = null;
-    private Settings settings;
     private DBusClient dbusclient;
 
+    static construct {
+        settings = new Settings ("io.elementary.monitor.settings");
+    }
+
     construct {
         Gtk.IconTheme.get_default ().add_resource_path ("/io/elementary/monitor/icons");
-        settings = new Settings ("io.elementary.monitor.settings");
         this.visible = false;
         display_widget = new Widgets.DisplayWidget ();
         popover_widget = new Widgets.PopoverWidget ();

src/Indicator/Widgets/DisplayWidget.vala

@@ -20,19 +20,18 @@ public class Monitor.Widgets.DisplayWidget : Gtk.Grid {
     construct {
         valign = Gtk.Align.CENTER;
 
-        var settings = new Settings ("io.elementary.monitor.settings");
         unowned var dbusclient = DBusClient.get_default ();
 
         dbusclient.monitor_appeared.connect (() => {
-            cpu_widget.visible = settings.get_boolean ("indicator-cpu-state");
-            cpu_frequency_widget.visible = settings.get_boolean ("indicator-cpu-frequency-state");
-            cpu_temperature_widget.visible = settings.get_boolean ("indicator-cpu-temperature-state");
-            memory_widget.visible = settings.get_boolean ("indicator-memory-state");
-            network_up_widget.visible = settings.get_boolean ("indicator-network-upload-state");
-            network_down_widget.visible = settings.get_boolean ("indicator-network-download-state");
-            gpu_widget.visible = settings.get_boolean ("indicator-gpu-state");
-            gpu_memory_widget.visible = settings.get_boolean ("indicator-gpu-memory-state");
-            gpu_temperature_widget.visible = settings.get_boolean ("indicator-gpu-temperature-state");
+            cpu_widget.visible = Indicator.settings.get_boolean ("indicator-cpu-state");
+            cpu_frequency_widget.visible = Indicator.settings.get_boolean ("indicator-cpu-frequency-state");
+            cpu_temperature_widget.visible = Indicator.settings.get_boolean ("indicator-cpu-temperature-state");
+            memory_widget.visible = Indicator.settings.get_boolean ("indicator-memory-state");
+            network_up_widget.visible = Indicator.settings.get_boolean ("indicator-network-upload-state");
+            network_down_widget.visible = Indicator.settings.get_boolean ("indicator-network-download-state");
+            gpu_widget.visible = Indicator.settings.get_boolean ("indicator-gpu-state");
+            gpu_memory_widget.visible = Indicator.settings.get_boolean ("indicator-gpu-memory-state");
+            gpu_temperature_widget.visible = Indicator.settings.get_boolean ("indicator-gpu-temperature-state");
         });
 
         dbusclient.interface.indicator_cpu_state.connect ((state) => cpu_widget.visible = state);