Fix "Go to parent folder" in EditorFileDialog

[Alex2782]

Fixes: #80750

I am not sure if '/' character may be removed in the function get_base_dir() as well. (190 results in 80 files)

[KoBeWi]

I am not sure if '/' character may be removed in the function get_base_dir() as well. (190 results in 80 files)

I remember we have workaround code for the / issue in various places. Might be indeed worth it to modify get_base_dir() itself (but then we should do a cleanup pass to remove the workarounds).

[Alex2782]

no problems

Screen-2023-09-06-004217.mp4

[KoBeWi]

I can't reproduce the issue myself, but the fix looks fine.

[Alex2782]

maybe in one line? Cleaner?

or better?
(I personally try to keep the parameters that are passed to the functions short.)

void EditorFileDialog::_go_up() {
	String up_dir = get_current_dir().trim_suffix("/").get_base_dir();
	dir_access->change_dir(up_dir);
	
	update_file_list();
	update_dir();
	_push_history();
}

[akien-mga]

Looks good.

[akien-mga]

Thanks!

[YuriSizov]

Cherry-picked for 4.1.3.