commit 03cd697d635f1b0e7ffe21cf8244a8fb755f2ddb
author zeertzjq <zeertzjq@outlook.com> Wed Sep 20 20:08:40 2023 +0200
committer Christian Brabandt <cb@256bit.org> Wed Sep 20 20:08:40 2023 +0200
tree d856a22b0fc6373c66b20b182705ac14cc767c49
parent 5790a54166793554d16f6a85d8824632860b8b37

patch 9.0.1919: Wrong curswant when clicking on empty line or with vsplits

Problem:  Wrong curswant when clicking on empty line or with vsplits.
Solution: Don't check for ScreenCols[] before the start of the window
          and handle empty line properly.

closes: #13132

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>

src/testdir/test_virtualedit.vim

diff --git a/src/testdir/test_virtualedit.vim b/src/testdir/test_virtualedit.vim
index 44c5ec8..0cd5e96 100644
--- a/src/testdir/test_virtualedit.vim
+++ b/src/testdir/test_virtualedit.vim
@@ -564,35 +564,38 @@
   let save_mouse = &mouse
   set mouse=a
   set virtualedit=all
-  new
+  botright new
+  let row = win_screenpos(0)[0]
+  20vsplit
+  wincmd p
 
   call setline(1, ["text\tword"])
   redraw
-  call test_setmouse(1, 4)
+  call test_setmouse(row, 21 + 4)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 4, 0, 4], getcurpos())
-  call test_setmouse(1, 5)
+  call test_setmouse(row, 21 + 5)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 5, 0, 5], getcurpos())
-  call test_setmouse(1, 6)
+  call test_setmouse(row, 21 + 6)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 5, 1, 6], getcurpos())
-  call test_setmouse(1, 7)
+  call test_setmouse(row, 21 + 7)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 5, 2, 7], getcurpos())
-  call test_setmouse(1, 8)
+  call test_setmouse(row, 21 + 8)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 5, 3, 8], getcurpos())
-  call test_setmouse(1, 9)
+  call test_setmouse(row, 21 + 9)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 6, 0, 9], getcurpos())
-  call test_setmouse(1, 12)
+  call test_setmouse(row, 21 + 12)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 9, 0, 12], getcurpos())
-  call test_setmouse(1, 13)
+  call test_setmouse(row, 21 + 13)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 10, 0, 13], getcurpos())
-  call test_setmouse(1, 15)
+  call test_setmouse(row, 21 + 15)
   call feedkeys("\<LeftMouse>", "xt")
   call assert_equal([0, 1, 10, 2, 15], getcurpos())