# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1602010803 -7200
# Node ID 81ae5fa92928cc4af06985b7bea8f038ee878099
# Parent  6acf73cc1863e4829e481bfbbd95ca397c18eb0b
patch 8.2.1807: can use :help in a terminal popup window

Commit: https://github.com/vim/vim/commit/349f609f8990a3aca9a4b8faa0585d75e03116db
Author: Bram Moolenaar <Bram@vim.org>
Date:   Tue Oct 6 20:46:49 2020 +0200

    patch 8.2.1807: can use :help in a terminal popup window

    Problem:    Can use :help in a terminal popup window.
    Solution:   Give an error. (closes https://github.com/vim/vim/issues/7088)

diff --git a/src/help.c b/src/help.c
--- a/src/help.c
+++ b/src/help.c
@@ -39,6 +39,9 @@ ex_help(exarg_T *eap)
     int		old_KeyTyped = KeyTyped;
 #endif
 
+    if (ERROR_IF_ANY_POPUP_WINDOW)
+	return;
+
     if (eap != NULL)
     {
 	// A ":help" command ends at the first LF, or at a '|' that is
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -2645,6 +2645,10 @@ func Test_popupwin_terminal_buffer()
   let g:test_is_flaky = 1
 
   let origwin = win_getid()
+
+  " open help window to test that :help below fails
+  help
+
   let termbuf = term_start(&shell, #{hidden: 1})
   let winid = popup_create(termbuf, #{minwidth: 40, minheight: 10})
   " Wait for shell to start
@@ -2666,6 +2670,7 @@ func Test_popupwin_terminal_buffer()
 
   " Cannot escape from terminal window
   call assert_fails('tab drop xxx', 'E863:')
+  call assert_fails('help', 'E994:')
 
   " Cannot open a second one.
   let termbuf2 = term_start(&shell, #{hidden: 1})
@@ -2677,6 +2682,7 @@ func Test_popupwin_terminal_buffer()
   " Wait for shell to exit
   call WaitForAssert({-> assert_equal("dead", job_status(term_getjob(termbuf)))})
 
+  helpclose
   call feedkeys(":quit\<CR>", 'xt')
   call assert_equal(origwin, win_getid())
 endfunc
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1807,
+/**/
     1806,
 /**/
     1805,