--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ztfy/baseskin/viewlet.py	Sun May 11 02:03:37 2014 +0200
@@ -0,0 +1,100 @@
+### -*- coding: utf-8 -*- ####################################################
+##############################################################################
+#
+# Copyright (c) 2008-2014 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+
+__docformat__ = "restructuredtext"
+
+# import standard packages
+
+# import Zope3 interfaces
+from zope.contentprovider.interfaces import IContentProvider
+
+# import local interfaces
+from ztfy.baseskin.interfaces.form import IFormViewletsManager, IFormPrefixViewletsManager, \
+    IWidgetsPrefixViewletsManager, IWidgetsSuffixViewletsManager, IFormSuffixViewletsManager
+
+# import Zope3 packages
+from z3c.template.template import getViewTemplate
+from zope.component import adapts
+from zope.interface import implements, Interface
+from zope.viewlet.viewlet import ViewletBase as Viewlet
+from zope.viewlet.manager import ViewletManagerBase as ViewletManager, WeightOrderedViewletManager
+
+# import local packages
+from ztfy.baseskin.layer import IBaseSkinLayer
+
+
+class ViewletManagerBase(ViewletManager):
+    """Template based viewlet manager class"""
+
+    template = getViewTemplate()
+
+
+class WeightViewletManagerBase(WeightOrderedViewletManager):
+    """Template based weighted viewlet manager class"""
+
+    template = getViewTemplate()
+
+
+class ViewletBase(Viewlet):
+    """Template based viewlet"""
+
+    render = getViewTemplate()
+
+
+class ContentProviderBase(object):
+    """Generic template based content provider"""
+
+    adapts(Interface, IBaseSkinLayer, Interface)
+    implements(IContentProvider)
+
+    def __init__(self, context, request, view):
+        self.context = context
+        self.request = request
+        self.__parent__ = view
+
+    def update(self):
+        pass
+
+    render = getViewTemplate()
+
+
+class FormViewletManager(WeightOrderedViewletManager):
+    """Base form viewlet manager"""
+
+    implements(IFormViewletsManager)
+
+
+class FormPrefixViewletManager(FormViewletManager):
+    """Form prefix viewlet manager, displayed before form"""
+
+    implements(IFormPrefixViewletsManager)
+
+
+class WidgetsPrefixViewletManager(FormViewletManager):
+    """Form widgets prefix display manager, displayed before widgets"""
+
+    implements(IWidgetsPrefixViewletsManager)
+
+
+class WidgetsSuffixViewletManager(FormViewletManager):
+    """Form widgets suffix viewlet manager, displayed after widgets"""
+
+    implements(IWidgetsSuffixViewletsManager)
+
+
+class FormSuffixViewletManager(FormViewletManager):
+    """Form suffix viewlet manager, displayed after form"""
+
+    implements(IFormSuffixViewletsManager)