[gnome-calendar/wip/exalm/dark: 2/3] application: Support dark style preference

[Alexander Mikhaylenko <alexm src gnome org>]

commit 7144300a49c0e62f000726ab8a8d9f16eb9715c9
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Dec 11 17:25:03 2021 +0500

    application: Support dark style preference
    
    Depend on libhandy 1.5.0.

 meson.build                         |  2 +-
 src/core/gcal-night-light-monitor.c | 10 ++++++----
 src/gui/gcal-application.c          |  3 +++
 3 files changed, 10 insertions(+), 5 deletions(-)
---
diff --git a/meson.build b/meson.build
index 7bc38e55..43b80e41 100644
--- a/meson.build
+++ b/meson.build
@@ -164,7 +164,7 @@ libedataserver_dep = dependency('libedataserver-1.2', version: '>= 3.17.1')
 libecal_dep = dependency('libecal-2.0', version: '>= 3.33.2')
 libsoup_dep = dependency('libsoup-2.4')
 libdazzle_dep = dependency('libdazzle-1.0', version: '>= 3.33.1')
-libhandy_dep = dependency('libhandy-1', version: '>= 1.0.0')
+libhandy_dep = dependency('libhandy-1', version: '>= 1.5.0')
 glib_dep = dependency('glib-2.0', version: '>= 2.67.5')
 gtk_dep = dependency('gtk+-3.0', version: '>= 3.22.20')
 gio_dep = dependency('gio-2.0', version: '>= 2.58.0')
diff --git a/src/core/gcal-night-light-monitor.c b/src/core/gcal-night-light-monitor.c
index 293cc687..481a1219 100644
--- a/src/core/gcal-night-light-monitor.c
+++ b/src/core/gcal-night-light-monitor.c
@@ -67,10 +67,12 @@ on_night_light_proxy_properties_changed_cb (GcalNightLightMonitor *self,
       activev = g_dbus_proxy_get_cached_property (proxy, "NightLightActive");
       active = g_variant_get_boolean (activev);
 
-      g_object_set (gtk_settings_get_default (),
-                    "gtk-application-prefer-dark-theme",
-                    active,
-                    NULL);
+      if (active)
+        hdy_style_manager_set_color_scheme (hdy_style_manager_get_default (),
+                                            HDY_COLOR_SCHEME_PREFER_DARK);
+      else
+        hdy_style_manager_set_color_scheme (hdy_style_manager_get_default (),
+                                            HDY_COLOR_SCHEME_PREFER_LIGHT);
     }
 }
 
diff --git a/src/gui/gcal-application.c b/src/gui/gcal-application.c
index 5d680723..0bd32816 100644
--- a/src/gui/gcal-application.c
+++ b/src/gui/gcal-application.c
@@ -362,6 +362,9 @@ gcal_application_startup (GApplication *app)
   /*  initialize libhandy */
   hdy_init();
 
+  hdy_style_manager_set_color_scheme (hdy_style_manager_get_default (),
+                                      HDY_COLOR_SCHEME_PREFER_LIGHT);
+
   /* Startup the manager */
   gcal_context_startup (self->context);