[libadwaita/wip/exalm/inspector: 3/7] style-manager: Anticipate system-supports-color-schemes changes

[Alexander Mikhaylenko <alexm src gnome org>]

commit 1af8ad71f3ccd20161d8df8372c745e998a384d8
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Mon Sep 27 02:53:59 2021 +0500

    style-manager: Anticipate system-supports-color-schemes changes

 src/adw-style-manager.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/src/adw-style-manager.c b/src/adw-style-manager.c
index 7a0057fc..9a4ab85c 100644
--- a/src/adw-style-manager.c
+++ b/src/adw-style-manager.c
@@ -209,6 +209,12 @@ update_dark (AdwStyleManager *self)
   g_object_notify_by_pspec (G_OBJECT (self), props[PROP_DARK]);
 }
 
+static void
+notify_system_supports_color_schemes_cb (AdwStyleManager *self)
+{
+  g_object_notify_by_pspec (G_OBJECT (self), props[PROP_SYSTEM_SUPPORTS_COLOR_SCHEMES]);
+}
+
 static void
 notify_high_contrast_cb (AdwStyleManager *self)
 {
@@ -255,6 +261,11 @@ adw_style_manager_constructed (GObject *object)
 
   self->settings = adw_settings_get_default ();
 
+  g_signal_connect_object (self->settings,
+                           "notify::system-supports-color-schemes",
+                           G_CALLBACK (notify_system_supports_color_schemes_cb),
+                           self,
+                           G_CONNECT_SWAPPED);
   g_signal_connect_object (self->settings,
                            "notify::color-scheme",
                            G_CALLBACK (update_dark),
@@ -418,8 +429,6 @@ adw_style_manager_class_init (AdwStyleManagerClass *klass)
    * color scheme preference. For example, applications might want to show a
    * separate appearance switcher if it's set to `FALSE`.
    *
-   * It's only set at startup and cannot change its value later.
-   *
    * See [property@Adw.StyleManager:color-scheme].
    *
    * Since: 1.0