d4f355c2c9
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2899 fd906abe-77d9-0310-91a1-e0d9ade77398
126 lines
3.4 KiB
Python
126 lines
3.4 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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Basic view classes for layout-based presentation.
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$Id$
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"""
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from zope import component
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from zope.interface import Interface, implements
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from zope.cachedescriptors.property import Lazy
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from zope.app.pagetemplate import ViewPageTemplateFile
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from cybertools.composer.layout.base import Layout
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from cybertools.composer.layout.interfaces import ILayoutManager
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from cybertools.composer.layout.interfaces import ILayout, ILayoutInstance
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class BaseView(object):
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template = ViewPageTemplateFile('base.pt')
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page = None
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parent = None
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skin = None
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def __init__(self, context, request, **kw):
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self.context = self.__parent__ = context
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self.request = request
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for k, v in kw.items():
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setattr(self, k, v)
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def __call__(self):
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return self.template(self)
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def update(self):
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return True
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class Page(BaseView):
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layoutName = 'page'
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@Lazy
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def rootView(self):
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return self
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def __call__(self):
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layout = component.getUtility(ILayout, name=self.layoutName)
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instance = ILayoutInstance(self.context)
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instance.template = layout
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view = LayoutView(instance, self.request, name='page',
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parent=self, page=self)
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view.body = view.layouts['body'][0]
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instance.view = view
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return view.template(view)
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@Lazy
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def resourceBase(self):
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skinSetter = self.skin and ('/++skin++' + self.skin.__name__) or ''
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# TODO: put '/@@' etc after path to site instead of directly after URL0
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return self.request.URL[0] + skinSetter + '/@@/'
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class LayoutView(BaseView):
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name = 'base'
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@Lazy
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def client(self):
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return self.context.context
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@Lazy
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def renderer(self):
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renderer = self.context.renderer
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if renderer is None:
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raise ValueError('No renderer found for %r.' % self.context)
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return renderer
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@Lazy
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def layouts(self):
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return ViewLayouts(self)
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@Lazy
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def resources(self):
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return ViewResources(self)
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def getLayoutsFor(self, key):
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manager = component.getUtility(ILayoutManager)
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return manager.getLayouts('.'.join((self.name, key)), self.context)
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# subview providers
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class ViewLayouts(object):
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def __init__(self, view):
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self.view = view
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def __getitem__(self, key):
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view = self.view
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subviews = []
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for layout in view.getLayoutsFor(key):
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instance = ILayoutInstance(view.client)
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instance.template = layout
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v = LayoutView(instance, view.request, name=key,
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parent=view, page=view.page)
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instance.view = v
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subviews.append(v)
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return subviews
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