The directory listing's size and date columns are fixed, so at 280px the
name had no room and rows showed no names. The heading and rows now sit
in a sideways scroll box whose child keeps the least width: the name's
least, the fixed columns and each row's icon, gaps and padding. A column
of the explorer was keyed by its depth, so a new folder there inherited
the old list's cursor; columns and rows are keyed by their folder. The
explorer asserts each folder on its path is a folder in its parent.
ZacharyZhang-NY
4717aad596