import glob import os.path import urwid class _PathCompleter: def __init__(self, _testing=False): """ _testing: disables reloading of the lookup table to make testing possible. """ self.lookup, self.offset = None, None self.final = None self._testing = _testing def reset(self): self.lookup = None self.offset = -1 def complete(self, txt): """ Returns the next completion for txt, or None if there is no completion. """ path = os.path.expanduser(txt) if not self.lookup: if not self._testing: # Lookup is a set of (display value, actual value) tuples. self.lookup = [] if os.path.isdir(path): files = glob.glob(os.path.join(path, "*")) prefix = txt else: files = glob.glob(path+"*") prefix = os.path.dirname(txt) prefix = prefix or "./" for f in files: display = os.path.join(prefix, os.path.basename(f)) if os.path.isdir(f): display += "/" self.lookup.append((display, f)) if not self.lookup: self.final = path return path self.lookup.sort() self.offset = -1 self.lookup.append((txt, txt)) self.offset += 1 if self.offset >= len(self.lookup): self.offset = 0 ret = self.lookup[self.offset] self.final = ret[1] return ret[0] class PathEdit(urwid.Edit, _PathCompleter): def __init__(self, *args, **kwargs): urwid.Edit.__init__(self, *args, **kwargs) _PathCompleter.__init__(self) def keypress(self, size, key): if key == "tab": comp = self.complete(self.get_edit_text()) self.set_edit_text(comp) self.set_edit_pos(len(comp)) else: self.reset() return urwid.Edit.keypress(self, size, key)