84 lines
2.2 KiB
Python
84 lines
2.2 KiB
Python
#
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# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Use ZPT macros as layout renderers.
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$Id$
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"""
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from zope.app.pagetemplate import ViewPageTemplateFile
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from cybertools.util.cache import cache
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class RendererFactory(object):
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""" Provider for ZPT macros.
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"""
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def __init__(self, template):
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self.template = template
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def get(self, key, default=None):
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return self.template.macros.get(key, default)
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def __getitem__(self, key):
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#return self.template.macros[key]
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return Renderer(key, self)
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def __getattr__(self, key):
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""" Convenience method.
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"""
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#return lambda key=key: self[key]
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return self[key]
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def __repr__(self):
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return ('<RendererFactory, template=%r, macros=%r>' %
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(self.template, self.template.macros.keys()))
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class Renderer(object):
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def __init__(self, name, factory):
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self.name = name
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self.factory = factory
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self.template = factory.template
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def __call__(self):
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return self.template.macros[self.name]
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rendererTemplate = ViewPageTemplateFile('renderer.pt')
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class CachableRenderer(object):
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lifetime = 3 * 3600
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#lifetime = 24 * 3600
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def __init__(self, view, renderer):
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self.view = view
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self.renderer = renderer
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def getRenderMacroId(self, *args):
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return 'renderer.' + '.'.join(args)
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@cache(getRenderMacroId, lifetime=lifetime)
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def renderMacro(self, *args):
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return rendererTemplate(self.view, view=self.view, macro=self.renderer)
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