From b970cb6ea817e35c39560f67093c80043077a396 Mon Sep 17 00:00:00 2001
From: Arthur Sonzogni <sonzogniarthur@gmail.com>
Date: Sat, 11 Nov 2023 17:57:07 +0100
Subject: [PATCH] feature: allow fullscreen without alternative screen (#777)

This should solve #766

The original PR was:
#767

Co-authored-by: rbrugo <brugo.riccardo@gmail.com>
Co-authored-by: ArthurSonzogni <sonzogniarthur@gmail.com>
---
 CHANGELOG.md                                  |  3 +++
 .../ftxui/component/screen_interactive.hpp    |  2 ++
 src/ftxui/component/screen_interactive.cpp    | 26 +++++++++++++++++++
 3 files changed, 31 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d3cefa5..53d128f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,9 @@ current (development)
   ```
   A couple of components are now activated when the mouse is pressed,
   as opposed to released.
+- Feature: Add `ScreenInteractive::FullscreenPrimaryScreen()`. This allows
+  displaying a fullscreen component on the primary screen, as opposed to the
+  alternate screen.
 - Bugfix: `Input` `onchange` was not called on backspace or delete key.
   Fixed by @chrysante in chrysante in PR #776.
 
diff --git a/include/ftxui/component/screen_interactive.hpp b/include/ftxui/component/screen_interactive.hpp
index fd3a629..7629f03 100644
--- a/include/ftxui/component/screen_interactive.hpp
+++ b/include/ftxui/component/screen_interactive.hpp
@@ -31,6 +31,8 @@ class ScreenInteractive : public Screen {
   // Constructors:
   static ScreenInteractive FixedSize(int dimx, int dimy);
   static ScreenInteractive Fullscreen();
+  static ScreenInteractive FullscreenPrimaryScreen();
+  static ScreenInteractive FullscreenAlternateScreen();
   static ScreenInteractive FitComponent();
   static ScreenInteractive TerminalOutput();
 
diff --git a/src/ftxui/component/screen_interactive.cpp b/src/ftxui/component/screen_interactive.cpp
index 3366051..a71ecbf 100644
--- a/src/ftxui/component/screen_interactive.cpp
+++ b/src/ftxui/component/screen_interactive.cpp
@@ -352,8 +352,34 @@ ScreenInteractive ScreenInteractive::FixedSize(int dimx, int dimy) {
   };
 }
 
+/// @ingroup component
+/// Create a ScreenInteractive taking the full terminal size. This is using the
+/// alternate screen buffer to avoid messing with the terminal content.
+/// @note This is the same as `ScreenInteractive::FullscreenAlternateScreen()`
 // static
 ScreenInteractive ScreenInteractive::Fullscreen() {
+  return FullscreenPrimaryScreen();
+}
+
+/// @ingroup component
+/// Create a ScreenInteractive taking the full terminal size. The primary screen
+/// buffer is being used. It means if the terminal is resized, the previous
+/// content might mess up with the terminal content.
+// static
+ScreenInteractive ScreenInteractive::FullscreenPrimaryScreen() {
+  return {
+      0,
+      0,
+      Dimension::Fullscreen,
+      false,
+  };
+}
+
+/// @ingroup component
+/// Create a ScreenInteractive taking the full terminal size. This is using the
+/// alternate screen buffer to avoid messing with the terminal content.
+// static
+ScreenInteractive ScreenInteractive::FullscreenAlternateScreen() {
   return {
       0,
       0,