patch 9.0.0822: crash when dragging the statusline with a mapping
Problem: Crash when dragging the statusline with a mapping.
Solution: Check for valid window pointer. (issue #11427)
diff --git a/src/testdir/test_mapping.vim b/src/testdir/test_mapping.vim
index 4212731..ce9f932 100644
--- a/src/testdir/test_mapping.vim
+++ b/src/testdir/test_mapping.vim
@@ -1648,6 +1648,24 @@
set mouse&
endfunc
+func Test_mouse_drag_statusline()
+ set laststatus=2
+ set mouse=a
+ func ClickExpr()
+ call test_setmouse(&lines - 1, 1)
+ return "\<LeftMouse>"
+ endfunc
+ func DragExpr()
+ call test_setmouse(&lines - 2, 1)
+ return "\<LeftDrag>"
+ endfunc
+ nnoremap <expr> <F2> ClickExpr()
+ nnoremap <expr> <F3> DragExpr()
+
+ " this was causing a crash in win_drag_status_line()
+ call feedkeys("\<F2>:tabnew\<CR>\<F3>", 'tx')
+endfunc
+
" Test for mapping <LeftDrag> in Insert mode
func Test_mouse_drag_insert_map()
set mouse=a