registry.py
f75ac8ee5e45maint-2.1

registry.py
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			# -- coding: utf-8 --
			##
			## This file is part of Invenio.
			## Copyright (C) 2013, 2014 CERN.
			##
			## Invenio is free software; you can redistribute it and/or
			## modify it under the terms of the GNU General Public License as
			## published by the Free Software Foundation; either version 2 of the
			## License, or (at your option) any later version.
			##
			## Invenio is distributed in the hope that it will be useful, but
			## WITHOUT ANY WARRANTY; without even the implied warranty of
			## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
			## General Public License for more details.
			##
			## You should have received a copy of the GNU General Public License
			## along with Invenio; if not, write to the Free Software Foundation, Inc.,
			## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

			__all__ = ['previewext', 'previews']

			from invenio.ext.registry import ModuleAutoDiscoverySubRegistry
			from flask.ext.registry import RegistryProxy
			from invenio.utils.datastructures import LazyDict

			previewext = RegistryProxy(
			'previewext',
			ModuleAutoDiscoverySubRegistry,
			'previewext'
			)


			def dummy_can_preview(f):
			pass


			def dummy_preview(f, emb=None):
			pass

			previews = LazyDict(lambda: dict(map(lambda m: (
			m.__name__.split('.')[-1],
			dict(can_preview=getattr(m, 'can_preview', dummy_can_preview),
			preview=getattr(m, 'preview', dummy_preview))), previewext)))