vim-patch:8.1.2046: SafeState may be triggered at the wrong moment

Problem:    SafeState may be triggered at the wrong moment.
Solution:   Move it up higher to after where messages are processed.  Add a
            SafeStateAgain event to tigger there.

https://github.com/vim/vim/commit/69198cb8c08f124729c41a4681f2d142228a9139

SafeStateAgain is N/A.
Move SafeState functions to state.c.

Co-authored-by: Bram Moolenaar <Bram@vim.org>

1 files changed, 1 insertions, 35 deletions

diff --git a/src/nvim/normal.c b/src/nvim/normal.c
index 253a3f288e..324bfc0c46 100644
--- a/src/nvim/normal.c
+++ b/src/nvim/normal.c
@@ -482,40 +482,6 @@ bool check_text_or_curbuf_locked(oparg_T *oap)
   return true;
 }
 
-static bool was_safe = false;
-static int not_safe_now = 0;
-
-/// Trigger SafeState if currently in s safe state, that is "safe" is TRUE and
-/// there is no typeahead.
-void may_trigger_safestate(bool safe)
-{
-  bool is_safe = safe
-                 && stuff_empty()
-                 && typebuf.tb_len == 0
-                 && !global_busy;
-
-  if (is_safe) {
-    apply_autocmds(EVENT_SAFESTATE, NULL, NULL, false, curbuf);
-  }
-  was_safe = is_safe;
-}
-
-/// Entering a not-safe state.
-void enter_unsafe_state(void)
-{
-  not_safe_now++;
-}
-
-/// Leaving a not-safe state.  Trigger SafeState if we were in a safe state
-/// before first calling enter_not_safe_state().
-void leave_unsafe_state(void)
-{
-  not_safe_now--;
-  if (not_safe_now == 0 && was_safe) {
-    apply_autocmds(EVENT_SAFESTATE, NULL, NULL, false, curbuf);
-  }
-}
-
 /// Normal state entry point. This is called on:
 ///
 /// - Startup, In this case the function never returns.
@@ -1434,7 +1400,7 @@ static int normal_check(VimState *state)
   quit_more = false;
 
   // it's not safe unless normal_check_safe_state() is called
-  was_safe = false;
+  state_no_longer_safe();
 
   // If skip redraw is set (for ":" in wait_return()), don't redraw now.
   // If there is nothing in the stuff_buffer or do_redraw is true,