From: Benjamin Otte <otte@redhat.com>
Date: Wed, 1 Nov 2017 14:46:20 +0000 (+0100)
Subject: window: Clear the renderer un unrealize
X-Git-Tag: archive/raspbian/4.4.1+ds1-2+rpi1^2~18^2~23^2~979
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=8059f9bb3a8a4991a364db797965efffee2dba1d;p=gtk4.git

window: Clear the renderer un unrealize

We disconnect from the GDK window, so the renderer can't keep any useful
state.

Plus, we might be using an entirely different window next time we
realize (after a call to gtk_window_set_display() for example) that should
use a completely different renderer anyway.
---

diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index c06b59df4d..c9716a698b 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -6995,8 +6995,8 @@ gtk_window_unrealize (GtkWidget *widget)
                         (GtkCallback) gtk_widget_unrealize,
                         NULL);
 
-  if (priv->renderer != NULL)
-    gsk_renderer_unrealize (priv->renderer);
+  gsk_renderer_unrealize (priv->renderer);
+  g_clear_object (&priv->renderer);
 
   GTK_WIDGET_CLASS (gtk_window_parent_class)->unrealize (widget);