1 files changed, 79 insertions, 0 deletions
diff --git a/ranger/core/shared.py b/ranger/core/shared.py
new file mode 100644
index 00000000..175395ec
--- /dev/null
+++ b/ranger/core/shared.py
@@ -0,0 +1,79 @@
+# Copyright (C) 2009, 2010  Roman Zimbelmann <romanz@lavabit.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Shared objects contain singleton variables which can be
+inherited, essentially acting like global variables."""
+
+from ranger.ext.lazy_property import lazy_property
+
+class Awareness(object):
+	pass
+
+class EnvironmentAware(Awareness):
+	# This creates an instance implicitly, mainly for unit tests
+	@lazy_property
+	def env(self):
+		from ranger.core.environment import Environment
+		return Environment(".")
+
+class FileManagerAware(Awareness):
+	# This creates an instance implicitly, mainly for unit tests
+	@lazy_property
+	def fm(self):
+		from ranger.core.fm import FM
+		return FM()
+
+class SettingsAware(Awareness):
+	# This creates an instance implicitly, mainly for unit tests
+	@lazy_property
+	def settings(self):
+		from ranger.ext.openstruct import OpenStruct
+		return OpenStruct()
+
+	@staticmethod
+	def _setup(clean=True):
+		from ranger.container.settingobject import SettingObject, \
+				ALLOWED_SETTINGS
+		import ranger
+		import sys
+		settings = SettingObject()
+
+		from ranger.gui.colorscheme import _colorscheme_name_to_class
+		settings.signal_bind('setopt.colorscheme',
+				_colorscheme_name_to_class, priority=1)
+
+		def postprocess_paths(signal):
+			import os
+			signal.value = os.path.expanduser(signal.value)
+		settings.signal_bind('setopt.preview_script',
+				postprocess_paths, priority=1)
+
+		if not clean:
+			# add the custom options to the list of setting sources
+			sys.path[0:0] = [ranger.arg.confdir]
+			try:
+				import options as my_options
+			except ImportError:
+				pass
+			else:
+				settings._setting_sources.append(my_options)
+			del sys.path[0]
+
+		from ranger.defaults import options as default_options
+		settings._setting_sources.append(default_options)
+		assert all(hasattr(default_options, setting) \
+				for setting in ALLOWED_SETTINGS), \
+				"Ensure that all options are defined in the defaults!"
+		SettingsAware.settings = settings