+
−# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+
−# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
−#
+
−# This file is part of CubicWeb.
+
−#
+
−# CubicWeb is free software: you can redistribute it and/or modify it under the
+
−# terms of the GNU Lesser General Public License as published by the Free
+
−# Software Foundation, either version 2.1 of the License, or (at your option)
+
−# any later version.
+
−#
+
−# CubicWeb 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 Lesser General Public License for more
+
−# details.
+
−#
+
−# You should have received a copy of the GNU Lesser General Public License along
+
−# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+
−"""inline help system, using ReST file in products `wdoc` directory
+
−
+
−"""
+
−__docformat__ = "restructuredtext en"
+
−
+
−from itertools import chain
+
−from os.path import join
+
−from bisect import bisect_right
+
−from datetime import date
+
−
+
−from logilab.common.changelog import ChangeLog
+
−from logilab.common.date import strptime, todate
+
−from logilab.common.registry import yes
+
−from logilab.mtconverter import CHARSET_DECL_RGX
+
−
+
−from cubicweb.predicates import match_form_params
+
−from cubicweb.view import StartupView
+
−from cubicweb.uilib import rest_publish
+
−from cubicweb.web import NotFound, action
+
−_ = unicode
+
−
+
−# table of content management #################################################
+
−
+
−try:
+
−    from xml.etree.ElementTree import parse
+
−except ImportError:
+
−    from elementtree.ElementTree import parse
+
−
+
−def build_toc_index(node, index):
+
−    try:
+
−        nodeidx = node.attrib['resource']
+
−        assert not nodeidx in index, nodeidx
+
−        index[nodeidx] = node
+
−    except KeyError:
+
−        pass
+
−    for child in node:
+
−        build_toc_index(child, index)
+
−        child.parent = node
+
−
+
−def get_insertion_point(section, index):
+
−    if section.attrib.get('insertafter'):
+
−        snode = index[section.attrib['insertafter']]
+
−        node = snode.parent
+
−        idx = node.getchildren().index(snode) + 1
+
−    elif section.attrib.get('insertbefore'):
+
−        snode = index[section.attrib['insertbefore']]
+
−        node = snode.parent
+
−        idx = node.getchildren().index(snode)
+
−    elif 'appendto' in section.attrib:
+
−        node = index[section.attrib['appendto']]
+
−        idx = None
+
−    else:
+
−        node, idx = None, None
+
−    return node, idx
+
−
+
−def build_toc(config):
+
−    alltocfiles = reversed(tuple(config.locate_all_files('toc.xml')))
+
−    maintoc = parse(alltocfiles.next()).getroot()
+
−    maintoc.parent = None
+
−    index = {}
+
−    build_toc_index(maintoc, index)
+
−    # insert component documentation into the tree according to their toc.xml
+
−    # file
+
−    for fpath in alltocfiles:
+
−        toc = parse(fpath).getroot()
+
−        for section in toc:
+
−            node, idx = get_insertion_point(section, index)
+
−            if node is None:
+
−                continue
+
−            if idx is None:
+
−                node.append(section)
+
−            else:
+
−                node.insert(idx, section)
+
−            section.parent = node
+
−            build_toc_index(section, index)
+
−    return index
+
−
+
−def title_for_lang(node, lang):
+
−    fallback_title = None
+
−    for title in node.findall('title'):
+
−        title_lang = title.attrib['{http://www.w3.org/XML/1998/namespace}lang']
+
−        if title_lang == lang:
+
−            return unicode(title.text)
+
−        if title_lang == 'en':
+
−            fallback_title = unicode(title.text)
+
−    return fallback_title
+
−
+
−def subsections(node):
+
−    return [child for child in node if child.tag == 'section']
+
−
+
−# help views ##################################################################
+
−
+
−class InlineHelpView(StartupView):
+
−    __select__ = match_form_params('fid')
+
−    __regid__ = 'wdoc'
+
−    title = _('site documentation')
+
−
+
−    def call(self):
+
−        fid = self._cw.form['fid']
+
−        vreg = self._cw.vreg
+
−        for lang in chain((self._cw.lang, vreg.property_value('ui.language')),
+
−                          vreg.config.available_languages()):
+
−            rid = '%s_%s.rst' % (fid, lang)
+
−            resourcedir = vreg.config.locate_doc_file(rid)
+
−            if resourcedir:
+
−                break
+
−        else:
+
−            raise NotFound
+
−        self.tocindex = build_toc(vreg.config)
+
−        try:
+
−            node = self.tocindex[fid]
+
−        except KeyError:
+
−            node = None
+
−        else:
+
−            self.navigation_links(node)
+
−            self.w(u'<div class="hr"></div>')
+
−            self.w(u'<h1>%s</h1>' % (title_for_lang(node, self._cw.lang)))
+
−        data = open(join(resourcedir, rid)).read()
+
−        self.w(rest_publish(self, data))
+
−        if node is not None:
+
−            self.subsections_links(node)
+
−            self.w(u'<div class="hr"></div>')
+
−            self.navigation_links(node)
+
−
+
−    def navigation_links(self, node):
+
−        req = self._cw
+
−        parent = node.parent
+
−        if parent is None:
+
−            return
+
−        brothers = subsections(parent)
+
−        self.w(u'<div class="docnav">\n')
+
−        previousidx = brothers.index(node) - 1
+
−        if previousidx >= 0:
+
−            self.navsection(brothers[previousidx], 'prev')
+
−        self.navsection(parent, 'up')
+
−        nextidx = brothers.index(node) + 1
+
−        if nextidx < len(brothers):
+
−            self.navsection(brothers[nextidx], 'next')
+
−        self.w(u'</div>\n')
+
−
+
−    navinfo = {'prev': ('', 'data/previous.png', _('i18nprevnext_previous')),
+
−               'next': ('', 'data/next.png', _('i18nprevnext_next')),
+
−               'up': ('', 'data/up.png', _('i18nprevnext_up'))}
+
−
+
−    def navsection(self, node, navtype):
+
−        htmlclass, imgpath, msgid = self.navinfo[navtype]
+
−        self.w(u'<span class="%s">' % htmlclass)
+
−        self.w(u'%s : ' % self._cw._(msgid))
+
−        self.w(u'<a href="%s">%s</a>' % (
+
−            self._cw.build_url('doc/'+node.attrib['resource']),
+
−            title_for_lang(node, self._cw.lang)))
+
−        self.w(u'</span>\n')
+
−
+
−    def subsections_links(self, node, first=True):
+
−        sub = subsections(node)
+
−        if not sub:
+
−            return
+
−        if first:
+
−            self.w(u'<div class="hr"></div>')
+
−        self.w(u'<ul class="docsum">')
+
−        for child in sub:
+
−            self.w(u'<li><a href="%s">%s</a>' % (
+
−                self._cw.build_url('doc/'+child.attrib['resource']),
+
−                title_for_lang(child, self._cw.lang)))
+
−            self.subsections_links(child, False)
+
−            self.w(u'</li>')
+
−        self.w(u'</ul>\n')
+
−
+
−
+
−
+
−class InlineHelpImageView(StartupView):
+
−    __regid__ = 'wdocimages'
+
−    __select__ = match_form_params('fid')
+
−    binary = True
+
−    templatable = False
+
−    content_type = 'image/png'
+
−
+
−    def call(self):
+
−        fid = self._cw.form['fid']
+
−        for lang in chain((self._cw.lang, self._cw.vreg.property_value('ui.language')),
+
−                          self._cw.vreg.config.available_languages()):
+
−            rid = join('images', '%s_%s.png' % (fid, lang))
+
−            resourcedir = self._cw.vreg.config.locate_doc_file(rid)
+
−            if resourcedir:
+
−                break
+
−        else:
+
−            raise NotFound
+
−        self.w(open(join(resourcedir, rid)).read())
+
−
+
−
+
−
+
−class HelpAction(action.Action):
+
−    __regid__ = 'help'
+
−    __select__ = yes()
+
−
+
−    category = 'footer'
+
−    order = 0
+
−    title = _('Help')
+
−
+
−    def url(self):
+
−        return self._cw.build_url('doc/main')
+
−
+
−
+
−class AboutAction(action.Action):
+
−    __regid__ = 'about'
+
−    __select__ = yes()
+
−
+
−    category = 'footer'
+
−    order = 2
+
−    title = _('About this site')
+
−
+
−    def url(self):
+
−        return self._cw.build_url('doc/about')
+
−