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fix(api): win_set_config error message for splitting from a float #35650

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Problem: after #34287 nvim_win_set_config no longer errors when attempting to
split from a floating window only if "win" is 0.

Solution: fix the regression, reduce the scope of "parent" and similar checks to
only where it's currently used and add test coverage for the errors.
This commit is contained in:
Sean Dewar
2025-09-06 21:22:46 +01:00
committed by GitHub
parent 14e94f4617
commit da39966a3a
2 changed files with 81 additions and 24 deletions
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52
src/nvim/api/win_config.c
View File

@@ -415,25 +415,6 @@ void nvim_win_set_config(Window window, Dict(win_config) *config, Error *err)
if (!parse_win_config(win, config, &fconfig, !was_split || to_split, err)) {
return;
}
win_T *parent = config->win == 0 ? curwin : NULL;
tabpage_T *parent_tp = config->win == 0 ? curtab : NULL;
if (config->win > 0) {
parent = find_window_by_handle(fconfig.window, err);
if (!parent) {
return;
} else if (to_split && parent->w_floating) {
api_set_error(err, kErrorTypeException, "Cannot split a floating window");
return;
}
parent_tp = win_find_tabpage(parent);
// Prevent autocmd window from being moved into another tabpage
if (is_aucmd_win(win) && win_tp != parent_tp) {
api_set_error(err, kErrorTypeException, "Cannot move autocmd win to another tabpage");
return;
}
}
if (was_split && !to_split) {
if (!win_new_float(win, false, fconfig, err)) {
@@ -441,6 +422,34 @@ void nvim_win_set_config(Window window, Dict(win_config) *config, Error *err)
}
redraw_later(win, UPD_NOT_VALID);
} else if (to_split) {
win_T *parent = NULL;
tabpage_T *parent_tp = NULL;
if (config->win == 0) {
parent = curwin;
parent_tp = curtab;
} else if (config->win > 0) {
parent = find_window_by_handle(fconfig.window, err);
if (!parent) {
return;
}
parent_tp = win_find_tabpage(parent);
}
if (parent) {
if (parent->w_floating) {
api_set_error(err, kErrorTypeException, "Cannot split a floating window");
return;
}
if (is_aucmd_win(win) && win_tp != parent_tp) {
api_set_error(err, kErrorTypeException, "Cannot move autocmd window to another tabpage");
return;
}
// Can't move the cmdwin or its old curwin to a different tabpage.
if ((win == cmdwin_win || win == cmdwin_old_curwin) && win_tp != parent_tp) {
api_set_error(err, kErrorTypeException, "%s", e_cmdwin);
return;
}
}
WinSplit old_split = win_split_dir(win);
if (has_vertical && !has_split) {
if (config->vertical) {
@@ -468,11 +477,6 @@ 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 && parent_tp != 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