[gtk/ebassi/for-master: 7/20] Unrealize the ATContext in StackPage on dispose

[Emmanuele Bassi <ebassi src gnome org>]

commit a59889a2746b1e6ff8cdeac585dcd91c9308fb18
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Nov 12 14:49:16 2020 +0000

    Unrealize the ATContext in StackPage on dispose
    
    Otherwise we're going to try to unrealize it during the GtkStack
    destruction, which will emit warnings.

 gtk/gtkstack.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index 3d70475ff9..7e92686c1c 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -279,6 +279,17 @@ gtk_stack_page_finalize (GObject *object)
   G_OBJECT_CLASS (gtk_stack_page_parent_class)->finalize (object);
 }
 
+static void
+gtk_stack_page_dispose (GObject *object)
+{
+  GtkStackPage *page = GTK_STACK_PAGE (object);
+
+  if (page->at_context != NULL)
+    gtk_at_context_unrealize (page->at_context);
+
+  G_OBJECT_CLASS (gtk_stack_page_parent_class)->dispose (object);
+}
+
 static void
 gtk_stack_page_get_property (GObject      *object,
                              guint         property_id,
@@ -379,6 +390,7 @@ gtk_stack_page_class_init (GtkStackPageClass *class)
   GObjectClass *object_class = G_OBJECT_CLASS (class);
 
   object_class->finalize = gtk_stack_page_finalize;
+  object_class->dispose = gtk_stack_page_dispose;
   object_class->get_property = gtk_stack_page_get_property;
   object_class->set_property = gtk_stack_page_set_property;