GtkWidget: Add gtk_widget_get_path().

This function composes and returns a GtkWidgetPath representing
the passed widget.

gtk/gtkwidget.c

@@ -13165,6 +13165,27 @@ _gtk_widget_set_height_request_needed (GtkWidget *widget,
   widget->priv->height_request_needed = height_request_needed;
 }
 
+GtkWidgetPath *
+gtk_widget_get_path (GtkWidget *widget)
+{
+  GtkWidgetPath *path;
+
+  g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
+  g_return_val_if_fail (GTK_WIDGET_REALIZED (widget), NULL);
+
+  path = gtk_widget_path_new ();
+
+  while (widget)
+    {
+      gtk_widget_path_prepend_widget_desc (path,
+                                           G_OBJECT_TYPE (widget),
+                                           widget->name);
+      widget = widget->parent;
+    }
+
+  return path;
+}
+
 GtkStyleContext *
 gtk_widget_get_style_context (GtkWidget *widget)
 {
@@ -13178,7 +13199,8 @@ gtk_widget_get_style_context (GtkWidget *widget)
   if (G_UNLIKELY (!context))
     {
       context = g_object_new (GTK_TYPE_STYLE_CONTEXT, NULL);
-      g_object_set_qdata_full (widget, quark_style_context, context,
+      g_object_set_qdata_full (G_OBJECT (widget),
+                               quark_style_context, context,
                                (GDestroyNotify) g_object_unref);
     }
 

gtk/gtkwidget.h

@@ -37,6 +37,7 @@
 #include <gtk/gtkstyle.h>
 #include <gtk/gtksettings.h>
 #include <gtk/gtkstylecontext.h>
+#include <gtk/gtkwidgetpath.h>
 #include <atk/atk.h>
 
 G_BEGIN_DECLS
@@ -944,6 +945,8 @@ gboolean     gtk_widget_in_destruction (GtkWidget *widget);
 
 GtkStyleContext * gtk_widget_get_style_context (GtkWidget *widget);
 
+GtkWidgetPath *   gtk_widget_get_path (GtkWidget *widget);
+
 
 G_END_DECLS