1 files changed, 73 insertions, 0 deletions
diff --git a/ranger/environment.py b/ranger/environment.py
new file mode 100644
index 00000000..b5b3888c
--- /dev/null
+++ b/ranger/environment.py
@@ -0,0 +1,73 @@
+import os
+from ranger.directory import Directory
+
+class Vector():
+	def __init__(self, x, y):
+		self.x = x
+		self.y = y
+
+class Environment():
+	# A collection of data which is relevant for more than
+	# one class.
+	def __init__(self, opt):
+		self.opt = opt
+		self.path = None
+		self.pathway = ()
+		self.directories = {}
+		self.pwd = None # current directory
+		self.cf = None # current file
+		self.keybuffer = ()
+		self.copy = None
+		self.termsize = Vector(80, 24)
+
+	def key_append(self, key):
+		self.keybuffer += (key, )
+
+	def key_clear(self):
+		self.keybuffer = ()
+	
+	def at_level(self, level):
+		if level <= 0:
+			try:
+				return self.pathway[level - 1]
+			except IndexError:
+				return None
+		else:
+			return self.cf
+
+	def get_directory(self, path):
+		import os
+		path = os.path.abspath(path)
+		try:
+			return self.directories[path]
+		except KeyError:
+			self.directories[path] = Directory(path)
+			return self.directories[path]
+
+	def enter_dir(self, path):
+		# get the absolute path
+		path = os.path.normpath(os.path.join(self.path, path))
+
+		self.path = path
+		self.pwd = self.get_directory(path)
+
+		self.pwd.load_content()
+
+		# build the pathway, a tuple of directory objects which lie
+		# on the path to the current directory.
+		if path == '/':
+			self.pathway = (self.get_directory('/'), )
+		else:
+			pathway = []
+			currentpath = '/'
+			for dir in path.split('/'):
+				currentpath = os.path.join(currentpath, dir)
+#			debug.log(currentpath)
+				pathway.append(self.get_directory(currentpath))
+			self.pathway = tuple(pathway)
+
+		# set the current file.
+		if len(self.pwd) > 0:
+			self.cf = self.pwd[0]
+		else:
+			self.cf = None