[gtk/wip/ebassi/a11y-2: 431/442] a11y: Simplify GtkWindowAccessible

[Emmanuele Bassi <ebassi src gnome org>]

commit 24e8b484e034b760a3fc3615f8de328fac33376e
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu May 28 14:02:04 2020 +0100

    a11y: Simplify GtkWindowAccessible
    
    Have GtkWindow notify of title changes, instead of overriding
    GtkWidgetAccessible.notify_gtk.

 gtk/a11y/gtkwindowaccessible.c | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)
---
diff --git a/gtk/a11y/gtkwindowaccessible.c b/gtk/a11y/gtkwindowaccessible.c
index b25eeffb96..6485cf8e69 100644
--- a/gtk/a11y/gtkwindowaccessible.c
+++ b/gtk/a11y/gtkwindowaccessible.c
@@ -61,19 +61,14 @@ gtk_window_accessible_focus_event (AtkObject *obj,
 }
 
 static void
-gtk_window_accessible_notify_gtk (GObject    *obj,
-                                  GParamSpec *pspec)
+on_title_changed (GObject             *gobject,
+                  GParamSpec          *pspec,
+                  GtkWindowAccessible *self)
 {
-  GtkWidget *widget = GTK_WIDGET (obj);
-  AtkObject* atk_obj = gtk_widget_get_accessible (widget);
+  AtkObject *atk_obj = ATK_OBJECT (self);
 
-  if (g_strcmp0 (pspec->name, "title") == 0)
-    {
-      g_object_notify (G_OBJECT (atk_obj), "accessible-name");
-      g_signal_emit_by_name (atk_obj, "visible-data-changed");
-    }
-  else
-    GTK_WIDGET_ACCESSIBLE_CLASS (gtk_window_accessible_parent_class)->notify_gtk (obj, pspec);
+  g_object_notify (G_OBJECT (atk_obj), "accessible-name");
+  g_signal_emit_by_name (atk_obj, "visible-data-changed");
 }
 
 static const gchar *
@@ -244,14 +239,21 @@ gtk_window_accessible_ref_child (AtkObject *object,
   return NULL;
 }
 
+static void
+gtk_window_accessible_initialize (AtkObject *object,
+                                  gpointer   data)
+{
+  GtkWidget *window = data;
+
+  g_signal_connect (window, "notify::title", G_CALLBACK (on_title_changed), object);
+}
+
 static void
 gtk_window_accessible_class_init (GtkWindowAccessibleClass *klass)
 {
-  GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass;
   AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
 
-  widget_class->notify_gtk = gtk_window_accessible_notify_gtk;
-
+  class->initialize = gtk_window_accessible_initialize;
   class->get_name = gtk_window_accessible_get_name;
   class->get_index_in_parent = gtk_window_accessible_get_index_in_parent;
   class->ref_relation_set = gtk_window_accessible_ref_relation_set;