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import ranger.fsobject
from ranger.file import File
#from ranger.api import log
from ranger.fsobject import FileSystemObject as SuperClass
def sort_by_basename(path):
return path.basename
def sort_by_directory(path):
return -int( isinstance( path, Directory ) )
class NoDirectoryGiven(Exception):
pass
class Directory(SuperClass):
def __init__(self, path):
from os.path import isdir
if not isdir(path):
raise NoDirectoryGiven()
SuperClass.__init__(self, path)
self.content_loaded = False
self.scheduled = False
self.enterable = False
self.filenames = None
self.files = None
self.filter = None
self.pointed_index = None
self.pointed_file = None
self.scroll_begin = 0
self.show_hidden = False
self.directories_first = True
# to find out if something has changed:
self.old_show_hidden = self.show_hidden
self.old_directories_first = None #self.directories_first
def load_content(self):
from os.path import join, isdir, basename
from os import listdir
self.load_if_outdated()
self.content_loaded = True
if self.exists and self.runnable:
filenames = []
for fname in listdir(self.path):
if not self.show_hidden and fname[0] == '.':
continue
if isinstance(self.filter, str) and self.filter in fname:
continue
filenames.append(join(self.path, fname))
self.scroll_offset = 0
self.filenames = filenames
self.infostring = ' %d' % len(self.filenames) # update the infostring
files = []
for name in self.filenames:
if isdir(name):
f = Directory(name)
else:
f = File(name)
f.load()
files.append(f)
self.files = files
self.old_directories_first = None
# self.sort()
if len(self.files) > 0:
if self.pointed_file is not None:
self.move_pointer_to_file_path(self.pointed_file)
# if self.pointed_file is None:
# self.correct_pointer()
else:
self.filenames = None
self.files = None
self.infostring = superclass.BAD_INFO
def sort(self):
old_pointed_file = self.pointed_file
self.files.sort(key = sort_by_basename)
if self.directories_first:
self.files.sort(key = sort_by_directory)
if self.pointed_index is not None:
self.move_pointer_to_file_path(old_pointed_file)
else:
self.correct_pointer()
self.old_directories_first = self.directories_first
def sort_if_outdated(self):
if self.old_directories_first != self.directories_first:
self.sort()
# Notice: fm.env.cf should always point to the current file. If you
# modify the current directory with this function, make sure
# to update fm.env.cf aswell.
def move_pointer(self, relative=0, absolute=None):
if self.empty(): return
i = self.pointed_index
if isinstance(absolute, int):
if absolute < 0:
absolute = len(self.files) + absolute
i = absolute
if isinstance(relative, int):
i += relative
self.pointed_index = i
self.correct_pointer()
return self.pointed_file
def move_pointer_to_file_path(self, path):
if path is None: return
try: path = path.path
except AttributeError: pass
self.load_content_once()
if self.empty(): return
i = 0
for f in self.files:
if f.path == path:
self.move_pointer(absolute = i)
return True
i += 1
return False
def correct_pointer(self):
"""make sure the pointer is in the valid range of 0 : len(self.files)-1 (or None if directory is empty.)"""
if self.files is None or len(self.files) == 0:
self.pointed_index = None
self.pointed_file = None
else:
i = self.pointed_index
if i is None: i = 0
if i >= len(self.files): i = len(self.files) - 1
if i < 0: i = 0
self.pointed_index = i
self.pointed_file = self[i]
def load_content_once(self):
if not self.content_loaded:
self.load_content()
return True
return False
def load_content_if_outdated(self):
if self.load_content_once(): return True
if self.old_show_hidden != self.show_hidden:
self.old_show_hidden = self.show_hidden
self.load_content()
return True
import os
real_mtime = os.stat(self.path).st_mtime
cached_mtime = self.stat.st_mtime
if real_mtime != cached_mtime:
self.load_content()
return True
return False
def empty(self):
return self.files is None or len(self.files) == 0
def __len__(self):
if not self.accessible: raise ranger.fsobject.NotLoadedYet()
return len(self.files)
def __getitem__(self, key):
if not self.accessible: raise ranger.fsobject.NotLoadedYet()
return self.files[key]
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