From 48108c401ec474a3841b93745e563b4645a3f0d0 Mon Sep 17 00:00:00 2001
From: William Hua <william.hua@canonical.com>
Date: Fri, 15 Jul 2016 20:52:35 -0400
Subject: gdkwindow: store transient_for window

https://bugzilla.gnome.org/show_bug.cgi?id=756579
---
 gdk/gdkinternals.h | 1 +
 gdk/gdkwindow.c    | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index 1efa75e575..8949daecb8 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -203,6 +203,7 @@ struct _GdkWindow
   GdkWindowImpl *impl; /* window-system-specific delegate object */
 
   GdkWindow *parent;
+  GdkWindow *transient_for;
   GdkVisual *visual;
 
   gpointer user_data;
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 04fb29c2bc..42085a1da0 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -10370,6 +10370,8 @@ void
 gdk_window_set_transient_for (GdkWindow *window,
 			      GdkWindow *parent)
 {
+  window->transient_for = parent;
+
   GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_transient_for (window, parent);
 }
 
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