From 3b01a5a0ad082cc3e89ce999dd50e1bf7ef28743 Mon Sep 17 00:00:00 2001
From: dangooddd <dangoodds@gmail.com>
Date: Thu, 14 Nov 2024 12:25:39 +0300
Subject: [PATCH] Remove unused variable, allow clear on resize for Windows

---
 include/ftxui/component/screen_interactive.hpp |  1 -
 src/ftxui/component/screen_interactive.cpp     | 12 ++++--------
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/include/ftxui/component/screen_interactive.hpp b/include/ftxui/component/screen_interactive.hpp
index 999fbbc..6c79913 100644
--- a/include/ftxui/component/screen_interactive.hpp
+++ b/include/ftxui/component/screen_interactive.hpp
@@ -121,7 +121,6 @@ class ScreenInteractive : public Screen {
   bool mouse_captured = false;
   bool previous_frame_resized_ = false;
 
-  bool validated_ = false;
   bool frame_valid_ = false;
 
   bool force_handle_ctrl_c_ = true;
diff --git a/src/ftxui/component/screen_interactive.cpp b/src/ftxui/component/screen_interactive.cpp
index 19754bf..45a4fff 100644
--- a/src/ftxui/component/screen_interactive.cpp
+++ b/src/ftxui/component/screen_interactive.cpp
@@ -858,15 +858,12 @@ void ScreenInteractive::Draw(Component component) {
   ResetCursorPosition();
   std::cout << ResetPosition(/*clear=*/resized);
 
-  // clear terminal output if screen dimx decreases
-  // only on primary screen
-  // only on POSIX systems (linux/macos)
-#if !defined(_WIN32)
-  if ((dimx < dimx_) && validated_ && !use_alternative_screen_) {
-    std::cout << "\033[J";  // clear
+  // If the terminal width decrease, the terminal emulator will start wrapping
+  // lines and make the display dirty. We should clear it completely.
+  if ((dimx < dimx_) && !use_alternative_screen_) {
+    std::cout << "\033[J";  // clear terminal output
     std::cout << "\033[H";  // move cursor to home position
   }
-#endif
 
   // Resize the screen if needed.
   if (resized) {
@@ -934,7 +931,6 @@ void ScreenInteractive::Draw(Component component) {
   std::cout << ToString() << set_cursor_position;
   Flush();
   Clear();
-  validated_ = true;
   frame_valid_ = true;
 }