popover: Fix a broken cast

The widget passed here is priv->relative_to, not the popover.

diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
index 9781c1a13e91e72fe1b5cba3e49b86e673ba280e..87d888bd34dc732b618b8907a990d48f79a984b5 100644 (file)
--- a/gtk/gtkpopover.c
+++ b/gtk/gtkpopover.c
@@ -683,7 +683,7 @@ surface_transform_changed_cb (GtkWidget               *widget,
                               const graphene_matrix_t *transform,
                               gpointer                 user_data)
 {
-  GtkPopover *popover = GTK_POPOVER (widget);
+  GtkPopover *popover = user_data;
   GtkPopoverPrivate *priv = gtk_popover_get_instance_private (popover);
 
   move_to_rect (popover);