Source code for cubicweb.web.views.wdoc

# 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, rendering ReST files in the `wdoc` subdirectory of
CubicWeb and cubes

"""


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
from cubicweb import _

# 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(next(alltocfiles)).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 ##################################################################

[docs]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())
[docs]class HelpAction(action.Action): __regid__ = 'help' __select__ = yes() category = 'footer' order = 0 title = _('Help') def url(self): return self._cw.build_url('doc/main')
[docs]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')