Add location permission setting

src/Permissions/Widgets/AppSettingsView.vala

@@ -24,11 +24,16 @@ public class Permissions.Widgets.AppSettingsView : Switchboard.SettingsPage {
 
     private const string BACKGROUND_TABLE = "background";
     private const string BACKGROUND_ID = "background";
+    private const string LOCATION_TABLE = "location";
+    private const string LOCATION_ID = "location";
+
+    private string location_timestamp = "0";
 
     private Gtk.ListBox sandbox_box;
     private Gtk.ListBox permission_box;
     private Gtk.Button reset_button;
     private PermissionSettingsWidget background_row;
+    private PermissionSettingsWidget location_row;
 
     construct {
         notify["selected-app"].connect (update_view);
@@ -145,6 +150,20 @@ public class Permissions.Widgets.AppSettingsView : Switchboard.SettingsPage {
             permission_store.set_permission (BACKGROUND_TABLE, BACKGROUND_ID, selected_app.id, permissions);
         });
 
+        location_row = new PermissionSettingsWidget (
+            _("Location Services"),
+            _("Determine the location of this device."),
+            "preferences-system-privacy-location"
+        );
+
+        location_row.notify["active"].connect (() => {
+            string[] permissions = {
+                location_row.active ? "EXACT" : "NONE",
+                location_timestamp
+            };
+            permission_store.set_permission (LOCATION_TABLE, LOCATION_ID, selected_app.id, permissions);
+        });
+
         update_permissions.begin ();
         permission_store.notify["dbus"].connect (update_permissions);
         permission_store.changed.connect (update_permissions);
@@ -175,6 +194,17 @@ public class Permissions.Widgets.AppSettingsView : Switchboard.SettingsPage {
             }
         }
 
+        var location_permission = yield permission_store.get_permission (LOCATION_TABLE, LOCATION_ID, selected_app.id);
+        if (location_permission[0] != null) {
+            // Values are usually EXACT or NONE, but safer to assume anything but NONE is active
+            location_row.active = location_permission[0] != "NONE";
+            location_timestamp = location_permission[1];
+
+            if (location_row.parent == null) {
+                permission_box.append (location_row);
+            }
+        }
+
         permission_box.visible = permission_box.get_row_at_index (0) != null;
     }