From bfd30be2f006c427d3c1e4651cb5ea593f42f3a2 Mon Sep 17 00:00:00 2001
From: Antoine Martin <totaam@xpra.org>
Date: Wed, 4 Mar 2020 05:46:33 +0000
Subject: [PATCH] #2617 do save-graph IO in a separate thread

git-svn-id: https://xpra.org/svn/Xpra/trunk@25486 3bb7dfac-3a0b-4e04-842a-767bc560f471
---
 src/xpra/client/gtk_base/session_info.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/xpra/client/gtk_base/session_info.py b/src/xpra/client/gtk_base/session_info.py
index 55c2bf3259..78dcc561e9 100644
--- a/src/xpra/client/gtk_base/session_info.py
+++ b/src/xpra/client/gtk_base/session_info.py
@@ -1198,8 +1198,14 @@ def save_graph(self, _ebox, btn, graph):
                 filename = filenames[0]
                 surface = graph.surface
                 log("saving surface %s to %s", surface, filename)
-                with open(filename, "wb") as f:
-                    surface.write_to_png(f)
+                from io import BytesIO
+                b = BytesIO()
+                surface.write_to_png(b)
+                def save_file():
+                    with open(filename, "wb") as f:
+                        f.write(b.getvalue())
+                from xpra.make_thread import start_thread
+                start_thread(save_file, "save-graph")
         elif response in (Gtk.ResponseType.CANCEL, Gtk.ResponseType.CLOSE, Gtk.ResponseType.DELETE_EVENT):
             log("closed/cancelled")
         else: