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−# copyright 2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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−# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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−#
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−# This file is part of CubicWeb.
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−#
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−# CubicWeb is free software: you can redistribute it and/or modify it under the
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−# terms of the GNU Lesser General Public License as published by the Free
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−# Software Foundation, either version 2.1 of the License, or (at your option)
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−# any later version.
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−#
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−# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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−# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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−# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+
−# details.
+
−#
+
−# You should have received a copy of the GNU Lesser General Public License along
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−# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+
−"""property sheets allowing configuration of the web ui"""
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−
+
−__docformat__ = "restructuredtext en"
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−
+
−import re
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−import os
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−import os.path as osp
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−
+
−TYPE_CHECKS = [('STYLESHEETS', list), ('JAVASCRIPTS', list),
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−               ('STYLESHEETS_IE', list), ('STYLESHEETS_PRINT', list),
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−               ]
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−
+
−class lazystr(object):
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−    def __init__(self, string, context):
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−        self.string = string
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−        self.context = context
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−    def __str__(self):
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−        return self.string % self.context
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−
+
−
+
−class PropertySheet(dict):
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−    def __init__(self, cache_directory, **context):
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−        self._cache_directory = cache_directory
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−        self.context = context
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−        self.reset()
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−        context['sheet'] = self
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−        context['lazystr'] = self.lazystr
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−        self._percent_rgx = re.compile('%(?!\()')
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−
+
−    def lazystr(self, str):
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−        return lazystr(str, self)
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−
+
−    def reset(self):
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−        self.clear()
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−        self._ordered_propfiles = []
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−        self._propfile_mtime = {}
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−        self._sourcefile_mtime = {}
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−        self._cache = {}
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−
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−    def load(self, fpath):
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−        scriptglobals = self.context.copy()
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−        scriptglobals['__file__'] = fpath
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−        execfile(fpath, scriptglobals, self)
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−        for name, type in TYPE_CHECKS:
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−            if name in self:
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−                if not isinstance(self[name], type):
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−                    msg = "Configuration error: %s.%s should be a %s" % (fpath, name, type)
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−                    raise Exception(msg)
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−        self._propfile_mtime[fpath] = os.stat(fpath)[-2]
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−        self._ordered_propfiles.append(fpath)
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−
+
−    def need_reload(self):
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−        for rid, (adirectory, rdirectory, mtime) in self._cache.items():
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−            if os.stat(osp.join(rdirectory, rid))[-2] > mtime:
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−                del self._cache[rid]
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−        for fpath, mtime in self._propfile_mtime.iteritems():
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−            if os.stat(fpath)[-2] > mtime:
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−                return True
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−        return False
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−
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−    def reload(self):
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−        ordered_files = self._ordered_propfiles
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−        self.reset()
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−        for fpath in ordered_files:
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−            self.load(fpath)
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−
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−    def reload_if_needed(self):
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−        if self.need_reload():
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−            self.reload()
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−
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−    def process_resource(self, rdirectory, rid):
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−        try:
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−            return self._cache[rid][0]
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−        except KeyError:
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−            cachefile = osp.join(self._cache_directory, rid)
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−            self.debug('caching processed %s/%s into %s',
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−                       rdirectory, rid, cachefile)
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−            rcachedir = osp.dirname(cachefile)
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−            if not osp.exists(rcachedir):
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−                os.makedirs(rcachedir)
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−            sourcefile = osp.join(rdirectory, rid)
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−            content = file(sourcefile).read()
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−            # XXX replace % not followed by a paren by %% to avoid having to do
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−            # this in the source css file ?
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−            try:
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−                content = self.compile(content)
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−            except ValueError as ex:
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−                self.error("can't process %s/%s: %s", rdirectory, rid, ex)
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−                adirectory = rdirectory
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−            else:
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−                stream = file(cachefile, 'w')
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−                stream.write(content)
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−                stream.close()
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−                adirectory = self._cache_directory
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−            self._cache[rid] = (adirectory, rdirectory, os.stat(sourcefile)[-2])
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−            return adirectory
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−
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−    def compile(self, content):
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−        return self._percent_rgx.sub('%%', content) % self
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−
+
−    # these are overridden by set_log_methods below
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−    # only defining here to prevent pylint from complaining
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−    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
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−
+
−from cubicweb.web import LOGGER
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−from logilab.common.logging_ext import set_log_methods
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−set_log_methods(PropertySheet, LOGGER)