From 009a683e620aa773385bf2e192053427e0907353 Mon Sep 17 00:00:00 2001
From: llama <100429699+iamllama@users.noreply.github.com>
Date: Mon, 3 Feb 2025 00:31:36 +0800
Subject: [PATCH] Fix discard changes randomly being a noop on certain linux
 systems (#3781)

* fix discard changes randomly being a noop on certain linux systems

* use QApplication.setActiveWindow instead

* revert current impl

* wait for the next event loop iter before calling activeWindow
---
 qt/aqt/mediasrv.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/qt/aqt/mediasrv.py b/qt/aqt/mediasrv.py
index 122b9a3a4..b444d1ec0 100644
--- a/qt/aqt/mediasrv.py
+++ b/qt/aqt/mediasrv.py
@@ -581,7 +581,9 @@ def deck_options_require_close() -> bytes:
         if isinstance(window, DeckOptionsDialog):
             window.require_close()
 
-    aqt.mw.taskman.run_on_main(handle_on_main)
+    # on certain linux systems, askUser's QMessageBox.question unsets the active window
+    # so we wait for the next event loop before querying the next current active window
+    aqt.mw.taskman.run_on_main(lambda: QTimer.singleShot(0, handle_on_main))
     return b""