cubicweb/web/views/wdoc.py
changeset 11057 0b59724cb3f2
parent 10907 9ae707db5265
child 11767 432f87a63057
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/web/views/wdoc.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,231 @@
+# 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
+
+"""
+__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
+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 ##################################################################
+
+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')