1 files changed, 153 insertions, 0 deletions
diff --git a/ranger/fsobject/fsobject.py b/ranger/fsobject/fsobject.py
new file mode 100644
index 00000000..20b47813
--- /dev/null
+++ b/ranger/fsobject/fsobject.py
@@ -0,0 +1,153 @@
+CONTAINER_EXTENSIONS = 'rar zip tar gz bz bz2 tgz 7z iso cab'.split()
+DOCUMENT_EXTENSIONS = 'pdf doc ppt odt'.split()
+DOCUMENT_BASENAMES = 'README TODO LICENSE'.split()
+
+from . import T_FILE, T_DIRECTORY, T_UNKNOWN, T_NONEXISTANT, BAD_INFO
+from ranger.shared import MimeTypeAware, FileManagerAware
+class FileSystemObject(MimeTypeAware, FileManagerAware):
+	path = None
+	basename = None
+	dirname = None
+	extension = None
+	exists = False
+	accessible = False
+	marked = False
+	tagged = False
+	frozen = False
+	loaded = False
+	runnable = False
+	islink = False
+	brokenlink = False
+	stat = None
+	infostring = None
+	permissions = None
+	type = T_UNKNOWN
+
+	last_used = None
+
+	video = False
+	image = False
+	audio = False
+	media = False
+	document = False
+	container = False
+	mimetype_tuple = ()
+
+	def __init__(self, path):
+		MimeTypeAware.__init__(self)
+		if type(self) == FileSystemObject:
+			raise TypeError("FileSystemObject is an abstract class and cannot be initialized.")
+
+		from os.path import basename, dirname
+
+		self.path = path
+		self.basename = basename(path)
+		self.dirname = dirname(path)
+
+		try:
+			self.extension = self.basename[self.basename.rindex('.') + 1:]
+		except ValueError:
+			self.extension = None
+
+		self.set_mimetype()
+		self.use()
+	
+	def __str__(self):
+		"""returns a string containing the absolute path"""
+		return str(self.path)
+
+	def use(self):
+		"""mark the filesystem-object as used at the current time"""
+		import time
+		self.last_used = time.time()
+	
+	def is_older_than(self, seconds):
+		"""returns whether this object wasn't use()d in the last n seconds"""
+		import time
+		return self.last_used + seconds < time.time()
+	
+	def set_mimetype(self):
+		"""assign attributes such as self.video according to the mimetype"""
+		try:
+			self.mimetype = self.mimetypes[self.extension]
+		except KeyError:
+			self.mimetype = ''
+
+		self.video = self.mimetype.startswith('video')
+		self.image = self.mimetype.startswith('image')
+		self.audio = self.mimetype.startswith('audio')
+		self.media = self.video or self.image or self.audio
+		self.document = self.mimetype.startswith('text') or (self.extension in DOCUMENT_EXTENSIONS) or (self.basename in DOCUMENT_BASENAMES)
+		self.container = self.extension in CONTAINER_EXTENSIONS
+
+		keys = ('video', 'audio', 'image', 'media', 'document', 'container')
+		self.mimetype_tuple = tuple(key for key in keys if getattr(self, key))
+
+		if self.mimetype == '':
+			self.mimetype = None
+
+	def load(self):
+		"""reads useful information about the filesystem-object from the filesystem
+and caches it for later use"""
+		import os
+		from ranger.ext.human_readable import human_readable
+
+		self.loaded = True
+
+		if os.access(self.path, os.F_OK):
+			self.stat = os.stat(self.path)
+			self.islink = os.path.islink(self.path)
+			self.exists = True
+			self.accessible = True
+
+			if os.path.isdir(self.path):
+				self.type = T_DIRECTORY
+				try:
+					self.size = len(os.listdir(self.path))
+					self.infostring = ' %d' % self.size
+					self.runnable = True
+				except OSError:
+					self.infostring = BAD_INFO
+					self.runnable = False
+					self.accessible = False
+			elif os.path.isfile(self.path):
+				self.type = T_FILE
+				self.size = self.stat.st_size
+				self.infostring = ' ' + human_readable(self.stat.st_size)
+			else:
+				self.type = T_UNKNOWN
+				self.infostring = None
+
+		else:
+			self.stat = None
+			self.islink = False
+			self.infostring = None
+			self.type = T_NONEXISTANT
+			self.exists = False
+			self.runnable = False
+			self.accessible = False
+
+	def load_once(self):
+		"""calls load() if it has not been called at least once yet"""
+		if not self.loaded:
+			self.load()
+			return True
+		return False
+
+	def go(self):
+		"""enter the directory if the filemanager is running"""
+		if self.fm:
+			self.fm.enter_dir(self.path)
+
+	def load_if_outdated(self):
+		"""calls load() if the currently cached information is outdated or nonexistant"""
+		if self.load_once(): 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()
+			return True
+		return False