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fix(api): patch some cmdwin/textlock holes

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Problem: there are new ways to escape textlock or break the cmdwin in
nvim_win_set_config and nvim_tabpage_set_win.

Solution: fix them. Use win_goto to check it in nvim_tabpage_set_win and use the
try_start/end pattern like with similar functions such as nvim_set_current_win
(which uses the existing msg_list, if set).

Careful not to use `wp->handle` when printing the window ID in the error message
for nvim_tabpage_set_win, as win_goto autocommands may have freed the window.

On a related note, I have a feeling some API functions ought to be checking
curbuf_locked...
This commit is contained in:
Sean Dewar
2024-02-27 13:25:44 +00:00
parent d942c2b943
commit e7c262f555
5 changed files with 109 additions and 7 deletions
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6
src/nvim/api/win_config.c
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@@ -451,6 +451,12 @@ void nvim_win_set_config(Window window, Dict(win_config) *config, Error *err)
if (!check_split_disallowed_err(win, err)) {
return; // error already set
}
// Can't move the cmdwin or its old curwin to a different tabpage.
if ((win == cmdwin_win || win == cmdwin_old_curwin) && parent != NULL
&& win_find_tabpage(parent) != win_tp) {
api_set_error(err, kErrorTypeException, "%s", e_cmdwin);
return;
}
bool to_split_ok = false;
// If we are moving curwin to another tabpage, switch windows *before* we remove it from the