From 014bdb4a05d8f19037dc872a8ea5d48f301d78b6 Mon Sep 17 00:00:00 2001
From: Arthur Sonzogni <sonzogniarthur@gmail.com>
Date: Sat, 27 Apr 2024 11:18:35 +0200
Subject: [PATCH] Flush before applying a new configuration. (#848)
This avoids an ordering problem with whatever the user printed and
interacting with termios/WinAPI.
Bug:https://github.com/ArthurSonzogni/FTXUI/issues/846
---
src/ftxui/component/screen_interactive.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/ftxui/component/screen_interactive.cpp b/src/ftxui/component/screen_interactive.cpp
index 1e1125f7..07616d43 100644
--- a/src/ftxui/component/screen_interactive.cpp
+++ b/src/ftxui/component/screen_interactive.cpp
@@ -568,8 +568,16 @@ ScreenInteractive* ScreenInteractive::Active() {
// private
void ScreenInteractive::Install() {
+
frame_valid_ = false;
+ // Flush the buffer for stdout to ensure whatever the user has printed before
+ // is fully applied before we start modifying the terminal configuration. This
+ // is important, because we are using two different channels (stdout vs
+ // termios/WinAPI) to communicate with the terminal emulator below. See
+ // https://github.com/ArthurSonzogni/FTXUI/issues/846
+ Flush();
+
// After uninstalling the new configuration, flush it to the terminal to
// ensure it is fully applied:
on_exit_functions.push([] { Flush(); });
--
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