[gtk+] widget: Add _gtk_widget_peek_accessible()

[Benjamin Otte <otte src gnome org>]

commit 0b716e77eab99c7d6fe0174e3ad039a96a824e7c
Author: Benjamin Otte <otte redhat com>
Date:   Sat Nov 12 03:38:40 2011 +0100

    widget: Add _gtk_widget_peek_accessible()
    
    This function returns the accessible if it already exists. This way we
    can call functions on the accessible from the widget itself instead of
    having to rely on signals.

 gtk/gtkwidget.c        |   19 +++++++++++++++++++
 gtk/gtkwidgetprivate.h |    2 ++
 2 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index c624af6..667569b 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -11290,6 +11290,25 @@ gtk_widget_class_set_accessible_role (GtkWidgetClass *widget_class,
 }
 
 /**
+ * _gtk_widget_peek_accessible:
+ * @widget: a #GtkWidget
+ *
+ * Gets the accessible for @widget, if it has been created yet.
+ * Otherwise, this function returns %NULL. If the @widget's implementation
+ * does not use the default way to create accessibles, %NULL will always be
+ * returned.
+ *
+ * Returns: the accessible for @widget or %NULL if none has been
+ *     created yet.
+ **/
+AtkObject *
+_gtk_widget_peek_accessible (GtkWidget *widget)
+{
+  return g_object_get_qdata (G_OBJECT (widget),
+                             quark_accessible_object);
+}
+
+/**
  * gtk_widget_get_accessible:
  * @widget: a #GtkWidget
  *
diff --git a/gtk/gtkwidgetprivate.h b/gtk/gtkwidgetprivate.h
index 03f25c76..35f99b9 100644
--- a/gtk/gtkwidgetprivate.h
+++ b/gtk/gtkwidgetprivate.h
@@ -118,6 +118,8 @@ void     _gtk_widget_free_cached_sizes (GtkWidget *widget);
 const gchar*      _gtk_widget_get_accel_path               (GtkWidget *widget,
                                                             gboolean  *locked);
 
+AtkObject *       _gtk_widget_peek_accessible              (GtkWidget *widget);
+
 GdkEventExpose *  _gtk_cairo_get_event                     (cairo_t *cr);
 
 void              _gtk_widget_draw_internal                (GtkWidget *widget,