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patch 8.2.3430: no generic way to trigger an autocommand on mode change

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Problem:    No generic way to trigger an autocommand on mode change.
Solution:   Add the ModeChanged autocommand event. (Magnus Gross, closes #8856)
This commit is contained in:
=?UTF-8?q?Magnus=20Gro=C3=9F?=
2021-09-12 13:39:55 +02:00
committed by Bram Moolenaar
parent 464393a696
commit f1e8876fa2
13 changed files with 135 additions and 4 deletions
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41
src/misc1.c
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@@ -630,7 +630,7 @@ ask_yesno(char_u *str, int direct)
void
f_mode(typval_T *argvars, typval_T *rettv)
{
char_u buf[4];
char_u buf[MODE_MAX_LENGTH];
if (in_vim9script() && check_for_opt_bool_arg(argvars, 0) == FAIL)
return;
@@ -2643,3 +2643,42 @@ path_with_url(char_u *fname)
// "://" or ":\\" must follow
return path_is_url(p);
}
/*
* Fires a ModeChanged autocmd
*/
void
trigger_modechanged()
{
#if defined(FEAT_EVAL) || defined(PROTO)
dict_T *v_event;
typval_T rettv;
typval_T tv;
char_u *pat_pre;
char_u *pat;
if (!has_modechanged())
return;
v_event = get_vim_var_dict(VV_EVENT);
tv.v_type = VAR_UNKNOWN;
f_mode(&tv, &rettv);
(void)dict_add_string(v_event, "new_mode", rettv.vval.v_string);
(void)dict_add_string(v_event, "old_mode", last_mode);
dict_set_items_ro(v_event);
// concatenate modes in format "old_mode:new_mode"
pat_pre = concat_str(last_mode, (char_u*)":");
pat = concat_str(pat_pre, rettv.vval.v_string);
vim_free(pat_pre);
apply_autocmds(EVENT_MODECHANGED, pat, NULL, FALSE, curbuf);
STRCPY(last_mode, rettv.vval.v_string);
vim_free(rettv.vval.v_string);
vim_free(pat);
dict_free_contents(v_event);
hash_init(&v_event->dv_hashtab);
#endif
}