[gtk/a11y/editable: 3/4] gtk-demo: Set an accessible role

[Matthias Clasen <matthiasc src gnome org>]

commit 80e0e3fe4f3c17e9d5e2057df67fb257801ff6d3
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 19 12:56:50 2020 -0400

    gtk-demo: Set an accessible role
    
    Set the expected accessible role on the tagged entry
    widget in the demo of the same name. Accessible tools
    may decide to ignore widgets that have the wrong role,
    so setting an appropriate role is important.

 demos/gtk-demo/demotaggedentry.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/demos/gtk-demo/demotaggedentry.c b/demos/gtk-demo/demotaggedentry.c
index d75f49d76a..8d5c93edff 100644
--- a/demos/gtk-demo/demotaggedentry.c
+++ b/demos/gtk-demo/demotaggedentry.c
@@ -116,6 +116,7 @@ demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
 
   gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
   gtk_widget_class_set_css_name (widget_class, "entry");
+  gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_TEXT_BOX);
 }
 
 static GtkEditable *