widget: Set up signals after initializing style context

Otherwise, signals would be emitted on semi set up style context which
would then cause crashes when the signal handlers tried to use them.

https://bugzilla.gnome.org/show_bug.cgi?id=662023

diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index c4c85c9e0cf5cbca840e1165b7b292ba7c8fc9e5..a82f05023a45f459a64f6ce35852e502afa109aa 100644 (file)
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -14119,9 +14119,6 @@ gtk_widget_get_style_context (GtkWidget *widget)
                                     "direction", gtk_widget_get_direction (widget),
                                     NULL);
 
-      g_signal_connect (widget->priv->context, "changed",
-                        G_CALLBACK (style_context_changed), widget);
-
       screen = gtk_widget_get_screen (widget);
 
       if (screen)
@@ -14131,6 +14128,9 @@ gtk_widget_get_style_context (GtkWidget *widget)
       if (priv->parent)
         gtk_style_context_set_parent (priv->context,
                                       gtk_widget_get_style_context (priv->parent));
+
+      g_signal_connect (widget->priv->context, "changed",
+                        G_CALLBACK (style_context_changed), widget);
     }
 
   return widget->priv->context;