Use correct parent class when chaining up overridden functions

How `g_type_class_peek ()` was used it didn't return the correct parent
class in most cases.
G_DEFINE_TYPE macro creates a pointer we can use to get the parent
class `n_p_parent_class`.
Because we didn't use the correct parent class the object initialisation
wasn't fully completed for some GtkWidgets.
See https://developer.gnome.org/gobject/stable/chapter-gobject.html#gobject-instantiation
for more information.

This commit makes use of the `n_p_parent_class pointer` created for this
specific use case where ever possible.

Fixes: https://source.puri.sm/Librem5/calls/issues/118

plugins/dummy/calls-dummy-call.c

@@ -204,7 +204,6 @@ set_property (GObject      *object,
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsDummyCall *self = CALLS_DUMMY_CALL (object);
 
   if (self->inbound)
@@ -217,7 +216,7 @@ constructed (GObject *object)
       g_timeout_add_seconds (1, (GSourceFunc)outbound_timeout_cb, self);
     }
 
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_dummy_call_parent_class)->constructed (object);
 }
 
 
@@ -244,12 +243,11 @@ get_property (GObject      *object,
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsDummyCall *self = CALLS_DUMMY_CALL (object);
 
   g_free (self->number);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_dummy_call_parent_class)->finalize (object);
 }
 
 

plugins/dummy/calls-dummy-origin.c

@@ -217,24 +217,22 @@ set_property (GObject      *object,
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsDummyOrigin *self = CALLS_DUMMY_ORIGIN (object);
 
   remove_calls (self, NULL);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_dummy_origin_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsDummyOrigin *self = CALLS_DUMMY_ORIGIN (object);
 
   g_string_free (self->name, TRUE);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_dummy_origin_parent_class)->finalize (object);
 }
 
 

plugins/dummy/calls-dummy-provider.c

@@ -102,7 +102,6 @@ usr1_handler (CallsDummyProvider *self)
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsDummyProvider *self = CALLS_DUMMY_PROVIDER (object);
 
   calls_dummy_provider_add_origin (self, "Dummy origin");
@@ -111,7 +110,7 @@ constructed (GObject *object)
                      (GSourceFunc)usr1_handler,
                      self);
 
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_dummy_provider_parent_class)->constructed (object);
 }
 
 
@@ -136,13 +135,12 @@ get_property (GObject      *object,
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsDummyProvider *self = CALLS_DUMMY_PROVIDER (object);
 
   g_list_free_full (self->origins, g_object_unref);
   self->origins = NULL;
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_dummy_provider_parent_class)->dispose (object);
 }
 
 

plugins/mm/calls-mm-call.c

@@ -311,7 +311,6 @@ set_property (GObject      *object,
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMCall *self = CALLS_MM_CALL (object);
   MmGdbusCall *gdbus_call = MM_GDBUS_CALL (self->mm_call);
   MMCallState state;
@@ -336,7 +335,7 @@ constructed (GObject *object)
       start_call (CALLS_CALL (self));
     }
 
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_mm_call_parent_class)->constructed (object);
 }
 
 
@@ -365,25 +364,23 @@ get_property (GObject      *object,
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMCall *self = CALLS_MM_CALL (object);
 
   g_clear_object (&self->mm_call);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_mm_call_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMCall *self = CALLS_MM_CALL (object);
 
   g_free (self->disconnect_reason);
   g_string_free (self->number, TRUE);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_mm_call_parent_class)->finalize (object);
 }
 
 

plugins/mm/calls-mm-origin.c

@@ -446,7 +446,6 @@ modem_get_name (MMModem *modem)
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMOrigin *self = CALLS_MM_ORIGIN (object);
   MmGdbusModemVoice *gdbus_voice;
 
@@ -466,33 +465,31 @@ constructed (GObject *object)
      NULL,
      (GAsyncReadyCallback) list_calls_cb,
      self);
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_mm_origin_parent_class)->constructed (object);
 }
 
 
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMOrigin *self = CALLS_MM_ORIGIN (object);
 
   remove_calls (self, NULL);
   g_clear_object (&self->mm_obj);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_mm_origin_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMOrigin *self = CALLS_MM_ORIGIN (object);
 
   g_hash_table_unref (self->calls);
   g_free (self->name);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_mm_origin_parent_class)->finalize (object);
 }
 
 

plugins/mm/calls-mm-provider.c

@@ -357,7 +357,6 @@ mm_vanished_cb (GDBusConnection *connection,
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMProvider *self = CALLS_MM_PROVIDER (object);
 
   self->watch_id =
@@ -370,7 +369,7 @@ constructed (GObject *object)
 
   g_debug ("Watching for ModemManager");
 
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_mm_provider_parent_class)->constructed (object);
 }
 
 
@@ -397,7 +396,6 @@ get_property (GObject      *object,
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMProvider *self = CALLS_MM_PROVIDER (object);
 
   if (self->watch_id)
@@ -408,20 +406,19 @@ dispose (GObject *object)
 
   clear_dbus (self);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_mm_provider_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsMMProvider *self = CALLS_MM_PROVIDER (object);
 
   g_hash_table_unref (self->origins);
   g_free (self->status);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_mm_provider_parent_class)->finalize (object);
 }
 
 

plugins/ofono/calls-ofono-call.c

@@ -280,7 +280,6 @@ disconnect_reason_cb (CallsOfonoCall *self,
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoCall *self = CALLS_OFONO_CALL (object);
 
   g_return_if_fail (self->voice_call != NULL);
@@ -290,33 +289,31 @@ constructed (GObject *object)
   g_signal_connect_swapped (self->voice_call, "disconnect-reason",
                             G_CALLBACK (disconnect_reason_cb), self);
 
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_ofono_call_parent_class)->constructed (object);
 }
 
 
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoCall *self = CALLS_OFONO_CALL (object);
 
   g_clear_object (&self->voice_call);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_ofono_call_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoCall *self = CALLS_OFONO_CALL (object);
 
   g_free (self->disconnect_reason);
   g_free (self->name);
   g_free (self->number);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_ofono_call_parent_class)->finalize (object);
 }
 
 

plugins/ofono/calls-ofono-origin.c

@@ -448,7 +448,6 @@ voice_new_cb (GDBusConnection  *connection,
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoOrigin *self = CALLS_OFONO_ORIGIN (object);
   GDBusProxy *modem_proxy;
   gchar *name;
@@ -478,28 +477,26 @@ constructed (GObject *object)
 
   g_clear_object (&self->modem);
      
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_ofono_origin_parent_class)->constructed (object);
 }
 
 
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoOrigin *self = CALLS_OFONO_ORIGIN (object);
 
   remove_calls (self, NULL);
   g_clear_object (&self->modem);
   g_clear_object (&self->connection);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_ofono_origin_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoOrigin *self = CALLS_OFONO_ORIGIN (object);
 
   if (self->tone_queue)
@@ -508,7 +505,7 @@ finalize (GObject *object)
     }
   g_free (self->name);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_ofono_origin_parent_class)->finalize (object);
 }
 
 

plugins/ofono/calls-ofono-provider.c

@@ -380,7 +380,6 @@ get_modems_cb (GDBOManager *manager,
 static void
 constructed (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoProvider *self = CALLS_OFONO_PROVIDER (object);
   GError *error = NULL;
 
@@ -415,33 +414,31 @@ constructed (GObject *object)
      (GAsyncReadyCallback) get_modems_cb,
      self);
      
-  parent_class->constructed (object);
+  G_OBJECT_CLASS (calls_ofono_provider_parent_class)->constructed (object);
 }
 
 
 static void
 dispose (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoProvider *self = CALLS_OFONO_PROVIDER (object);
 
   g_clear_object (&self->manager);
   g_clear_object (&self->connection);
 
-  parent_class->dispose (object);
+  G_OBJECT_CLASS (calls_ofono_provider_parent_class)->dispose (object);
 }
 
 
 static void
 finalize (GObject *object)
 {
-  GObjectClass *parent_class = g_type_class_peek (G_TYPE_OBJECT);
   CallsOfonoProvider *self = CALLS_OFONO_PROVIDER (object);
 
   g_hash_table_unref (self->origins);
   g_hash_table_unref (self->modems);
 
-  parent_class->finalize (object);
+  G_OBJECT_CLASS (calls_ofono_provider_parent_class)->finalize (object);
 }