RetroZilla/extensions/python/xpcom/server/module.py

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2015-10-21 05:03:22 +02:00
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Python XPCOM language bindings.
#
# The Initial Developer of the Original Code is ActiveState Tool Corp.
# Portions created by ActiveState Tool Corp. are Copyright (C) 2000, 2001
# ActiveState Tool Corp. All Rights Reserved.
#
# Contributor(s):
# Mark Hammond <MarkH@ActiveState.com> (original author)
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
from xpcom import components
from xpcom import ServerException, Exception
from xpcom import nsError
import factory
import types
import os
class Module:
_com_interfaces_ = components.interfaces.nsIModule
def __init__(self, comps):
# Build a map of classes we can provide factories for.
c = self.components = {}
for klass in comps:
c[components.ID(klass._reg_clsid_)] = klass
self.klassFactory = factory.Factory
def getClassObject(self, compMgr, clsid, iid):
# Single retval result.
try:
klass = self.components[clsid]
except KeyError:
raise ServerException(nsError.NS_ERROR_FACTORY_NOT_REGISTERED)
# We can ignore the IID - the auto-wrap process will automatically QI us.
return self.klassFactory(klass)
def registerSelf(self, compMgr, location, loaderStr, componentType):
# void function.
fname = os.path.basename(location.path)
for klass in self.components.values():
reg_contractid = klass._reg_contractid_
print "Registering '%s' (%s)" % (reg_contractid, fname)
reg_desc = getattr(klass, "_reg_desc_", reg_contractid)
compMgr = compMgr.queryInterface(components.interfaces.nsIComponentRegistrar)
compMgr.registerFactoryLocation(klass._reg_clsid_,
reg_desc,
reg_contractid,
location,
loaderStr,
componentType)
# See if this class nominates custom register_self
extra_func = getattr(klass, "_reg_registrar_", (None,None))[0]
if extra_func is not None:
extra_func(klass, compMgr, location, loaderStr, componentType)
def unregisterSelf(self, compMgr, location, loaderStr):
# void function.
for klass in self.components.values():
ok = 1
try:
compMgr.unregisterComponentSpec(klass._reg_clsid_, location)
except Exception:
ok = 0
# Give the class a bash even if we failed!
extra_func = getattr(klass, "_reg_registrar_", (None,None))[1]
if extra_func is not None:
try:
extra_func(klass, compMgr, location, loaderStr)
except Exception:
ok = 0
if ok:
print "Successfully unregistered", klass.__name__
else:
print "Unregistration of", klass.__name__, "failed. (probably just not already registered)"
def canUnload(self, compMgr):
# single bool result
return 0 # we can never unload!