diff -r 000000000000 -r 747fc65e13e2 src/ztfy/baseskin/tal/api.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/ztfy/baseskin/tal/api.py Sun May 11 02:03:37 2014 +0200 @@ -0,0 +1,74 @@ +### -*- coding: utf-8 -*- #################################################### +############################################################################## +# +# Copyright (c) 2008-2010 Thierry Florac +# 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.tales.interfaces import ITALESFunctionNamespace + +# import local interfaces +from ztfy.baseskin.interfaces import IPresentationTarget +from ztfy.baseskin.interfaces.metas import IPageMetasHeaders +from ztfy.baseskin.tal.interfaces import ISkinTalesAPI, IContentMetasAPI + +# import Zope3 packages +from zope.component import queryMultiAdapter +from zope.interface import implements + +# import local packages + + +class SkinTalesAPI(object): + + implements(ISkinTalesAPI, ITALESFunctionNamespace) + + def __init__(self, context): + self.context = context + + def setEngine(self, engine): + self.request = engine.vars['request'] + + def presentation(self): + adapter = queryMultiAdapter((self.context, self.request), IPresentationTarget) + if adapter is not None: + interface = adapter.target_interface + return interface(self.context) + + +class ContentMetasTalesAPI(object): + + implements(IContentMetasAPI, ITALESFunctionNamespace) + + def __init__(self, context): + self.context = context + + def setEngine(self, engine): + self.request = engine.vars['request'] + + def items(self): + headers = queryMultiAdapter((self.context, self.request), IPageMetasHeaders) + if headers is None: + return [] + else: + return headers.metas + + def render(self): + headers = queryMultiAdapter((self.context, self.request), IPageMetasHeaders) + if headers is None: + return u'' + else: + return '\n'.join((meta.render() for meta in headers.metas))