[gnome-calendar/gbsneto/gtk4: 7/37] application: Port to GTK4

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit f17799045ed6052edb56c30a59037e29cb6c4f13
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Jan 10 17:00:37 2022 -0300

    application: Port to GTK4
    
    Subclass AdwApplication.

 src/gui/gcal-application.c | 16 ++++------------
 src/gui/gcal-application.h |  4 ++--
 2 files changed, 6 insertions(+), 14 deletions(-)
---
diff --git a/src/gui/gcal-application.c b/src/gui/gcal-application.c
index 75013b90..3dcae519 100644
--- a/src/gui/gcal-application.c
+++ b/src/gui/gcal-application.c
@@ -32,11 +32,10 @@
 #include <glib-object.h>
 #include <gio/gio.h>
 #include <glib/gi18n.h>
-#include <handy.h>
 
 struct _GcalApplication
 {
-  DzlApplication      parent;
+  AdwApplication      parent;
 
   GtkWidget          *window;
 
@@ -48,7 +47,7 @@ struct _GcalApplication
   GcalContext        *context;
 };
 
-G_DEFINE_TYPE (GcalApplication, gcal_application, DZL_TYPE_APPLICATION);
+G_DEFINE_TYPE (GcalApplication, gcal_application, ADW_TYPE_APPLICATION);
 
 static gboolean show_version = FALSE;
 
@@ -144,7 +143,7 @@ on_about_response (GtkAboutDialog *about,
   g_return_if_fail (user_data == NULL);
 
   if (response_id == GTK_RESPONSE_CANCEL)
-    gtk_widget_destroy (GTK_WIDGET (about));
+    gtk_window_destroy (GTK_WINDOW (about));
 }
 
 static gchar*
@@ -235,7 +234,7 @@ gcal_application_quit (GSimpleAction *simple,
 {
   GcalApplication *self = GCAL_APPLICATION (user_data);
 
-  gtk_widget_destroy (self->window);
+  gtk_window_destroy (GTK_WINDOW (self->window));
 }
 
 
@@ -307,7 +306,6 @@ gcal_application_activate (GApplication *application)
                                     "active-date", self->initial_date,
                                     NULL);
 
-      g_signal_connect (self->window, "destroy", G_CALLBACK (gtk_widget_destroyed), &self->window);
       g_object_add_weak_pointer (G_OBJECT (self->window), (gpointer*) &self->window);
       gtk_widget_show (self->window);
     }
@@ -359,12 +357,6 @@ gcal_application_startup (GApplication *app)
   if ((g_application_get_flags (app) & G_APPLICATION_IS_SERVICE) != 0)
     g_application_set_inactivity_timeout (app, 3 * 60 * 1000);
 
-  /*  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);
 
diff --git a/src/gui/gcal-application.h b/src/gui/gcal-application.h
index 9ee8c3cf..4ed44f54 100644
--- a/src/gui/gcal-application.h
+++ b/src/gui/gcal-application.h
@@ -24,12 +24,12 @@
 #include "gcal-context.h"
 #include "gcal-manager.h"
 
-#include <dazzle.h>
+#include <adwaita.h>
 
 G_BEGIN_DECLS
 
 #define GCAL_TYPE_APPLICATION (gcal_application_get_type ())
-G_DECLARE_FINAL_TYPE (GcalApplication, gcal_application, GCAL, APPLICATION, DzlApplication)
+G_DECLARE_FINAL_TYPE (GcalApplication, gcal_application, GCAL, APPLICATION, AdwApplication)
 
 GcalApplication*     gcal_application_new                        (void);