From 807c8f9005fceab1c5a339f5bc43a42405492094 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 14 Feb 2018 20:46:12 +0530
Subject: [PATCH] Do not send history buf in alternate screen mode

---
 kitty/screen.c  | 7 +++++++
 kitty/window.py | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/kitty/screen.c b/kitty/screen.c
index ae2b3bf20..9a4a10cf5 100644
--- a/kitty/screen.c
+++ b/kitty/screen.c
@@ -1577,6 +1577,12 @@ reset_dirty(Screen *self) {
     Py_RETURN_NONE;
 }
 
+static PyObject*
+is_using_alternate_linebuf(Screen *self) {
+    if (self->linebuf == self->alt_linebuf) Py_RETURN_TRUE;
+    Py_RETURN_FALSE;
+}
+
 WRAP1E(cursor_back, 1, -1)
 WRAP1B(erase_in_line, 0)
 WRAP1B(erase_in_display, 0)
@@ -1813,6 +1819,7 @@ static PyMethodDef methods[] = {
     MND(reset_mode, METH_VARARGS)
     MND(reset, METH_NOARGS)
     MND(reset_dirty, METH_NOARGS)
+    MND(is_using_alternate_linebuf, METH_NOARGS)
     MND(is_main_linebuf, METH_NOARGS)
     MND(cursor_back, METH_VARARGS)
     MND(erase_in_line, METH_VARARGS)
diff --git a/kitty/window.py b/kitty/window.py
index 944360cbc..c451e314f 100644
--- a/kitty/window.py
+++ b/kitty/window.py
@@ -318,7 +318,7 @@ class Window:
     def as_text(self, as_ansi=False, add_history=False):
         lines = []
         self.screen.as_text(lines.append, as_ansi)
-        if add_history:
+        if add_history and not self.screen.is_using_alternate_linebuf():
             h = []
             self.screen.historybuf.as_text(h.append, as_ansi)
             lines = h + lines