[gtk/matthiasc/for-master] switch: Hide internal structure from a11y

[Matthias Clasen <matthiasc src gnome org>]

commit ca9b06878d406841e8aa8df3a7da53c653c1276b
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Oct 21 14:55:13 2020 -0400

    switch: Hide internal structure from a11y
    
    According to section 7.1 of WAI-ARIA, the switch role
    has the "Children presentational" characteristic, which
    indicates that children should not be represented in
    the a11y tree.

 gtk/gtkswitch.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkswitch.c b/gtk/gtkswitch.c
index a178672595..bb681d9123 100644
--- a/gtk/gtkswitch.c
+++ b/gtk/gtkswitch.c
@@ -651,13 +651,21 @@ gtk_switch_init (GtkSwitch *self)
                                   gtk_switch_allocate);
   gtk_widget_set_layout_manager (GTK_WIDGET (self), layout);
 
-  self->on_image = gtk_image_new_from_icon_name ("switch-on-symbolic");
+  self->on_image = g_object_new (GTK_TYPE_IMAGE,
+                                 "accessible-role", GTK_ACCESSIBLE_ROLE_NONE,
+                                 "icon-name", "switch-on-symbolic",
+                                 NULL);
   gtk_widget_set_parent (self->on_image, GTK_WIDGET (self));
 
-  self->off_image = gtk_image_new_from_icon_name ("switch-off-symbolic");
+  self->off_image = g_object_new (GTK_TYPE_IMAGE,
+                                  "accessible-role", GTK_ACCESSIBLE_ROLE_NONE,
+                                  "icon-name", "switch-off-symbolic",
+                                  NULL);
   gtk_widget_set_parent (self->off_image, GTK_WIDGET (self));
 
-  self->slider = gtk_gizmo_new ("slider", NULL, NULL, NULL, NULL, NULL, NULL);
+  self->slider = gtk_gizmo_new_with_role ("slider",
+                                          GTK_ACCESSIBLE_ROLE_NONE,
+                                          NULL, NULL, NULL, NULL, NULL, NULL);
   gtk_widget_set_parent (self->slider, GTK_WIDGET (self));
 
   gtk_accessible_update_state (GTK_ACCESSIBLE (self),