[gtk+] window: Handle attach widget disappearing without weak pointers

[Benjamin Otte <otte src gnome org>]

commit 43e6b3aa0303b1886ea346c6db3db319e32b2987
Author: Benjamin Otte <otte redhat com>
Date:   Thu May 2 16:26:37 2013 +0200

    window: Handle attach widget disappearing without weak pointers
    
    Fixes the window not emitting a "notify::attached-to" signal when the
    attach-widget goes away.

 gtk/gtkwidget.c |    4 ++--
 gtk/gtkwindow.c |    3 ---
 2 files changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 2136928..78fc44d 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -11052,8 +11052,8 @@ gtk_widget_dispose (GObject *object)
 
   g_clear_object (&priv->muxer);
 
-  g_list_free (priv->attached_windows);
-  priv->attached_windows = NULL;
+  while (priv->attached_windows)
+    gtk_window_set_attached_to (priv->attached_windows->data, NULL);
 
   G_OBJECT_CLASS (gtk_widget_parent_class)->dispose (object);
 }
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index b6e3e15..f32f63b 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -2510,7 +2510,6 @@ remove_attach_widget (GtkWindow *window)
     {
       _gtk_widget_remove_attached_window (priv->attach_widget, window);
 
-      g_object_remove_weak_pointer (priv->attach_widget, &priv->attach_widget);
       priv->attach_widget = NULL;
     }
 }
@@ -2759,8 +2758,6 @@ gtk_window_set_attached_to (GtkWindow *window,
   if (priv->attach_widget)
     {
       _gtk_widget_add_attached_window (priv->attach_widget, window);
-
-      g_object_add_weak_pointer (priv->attach_widget, &priv->attach_widget);
     }
 
   /* Update the style, as the widget path might change. */