[gtk/gtk-3-24: 1/2] Remember to call print_cb even if print operation is cancelled.

[Matthias Clasen <matthiasc src gnome org>]

commit 6c911248c9235dcf6797f4b7cab7647926383db2
Author: Casey Jao <casey jao gmail com>
Date:   Wed Jul 8 13:26:47 2020 -0400

    Remember to call print_cb even if print operation is cancelled.
    
    Closes #2917.

 gtk/gtkprintoperation-portal.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkprintoperation-portal.c b/gtk/gtkprintoperation-portal.c
index 9fb0226706..271ede40b8 100644
--- a/gtk/gtkprintoperation-portal.c
+++ b/gtk/gtkprintoperation-portal.c
@@ -426,8 +426,15 @@ prepare_print_response (GDBusConnection *connection,
       g_free (filename);
     }
   else
-    portal->result = GTK_PRINT_OPERATION_RESULT_CANCEL;
+    {
+      portal->result = GTK_PRINT_OPERATION_RESULT_CANCEL;
+
+      if (portal->print_cb)
+         portal->print_cb (portal->op, portal->parent, portal->do_print, portal->result);
 
+      if (portal->destroy)
+         portal->destroy (portal);
+    }
   if (portal->loop)
     g_main_loop_quit (portal->loop);
 }