+
−"""navigation components definition for CubicWeb web client
+
−
+
−:organization: Logilab
+
−:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+
−:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
−:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+
−"""
+
−__docformat__ = "restructuredtext en"
+
−_ = unicode
+
−
+
−from logilab.mtconverter import html_escape
+
−
+
−# don't use AnyEntity since this may cause bug with isinstance() due to reloading
+
−from cubicweb.interfaces import IBreadCrumbs
+
−from cubicweb.selectors import match_context_prop, one_line_rset, implements
+
−from cubicweb.entity import Entity
+
−from cubicweb.view import EntityView
+
−from cubicweb.common.uilib import cut
+
−from cubicweb.web.component import EntityVComponent
+
−
+
−
+
−def bc_title(entity):
+
−    textsize = entity.req.property_value('navigation.short-line-size')
+
−    return html_escape(cut(entity.dc_title(), textsize))
+
−
+
−
+
−class BreadCrumbEntityVComponent(EntityVComponent):
+
−    id = 'breadcrumbs'
+
−    # register msg not generated since no entity implements IPrevNext in cubicweb itself
+
−    title = _('contentnavigation_breadcrumbs')
+
−    help = _('contentnavigation_breadcrumbs_description')
+
−    __select__ = (one_line_rset() & match_context_prop() & implements(IBreadCrumbs))
+
−    context = 'navtop'
+
−    order = 5
+
−    visible = False
+
−    separator = u' > '
+
−
+
−    def call(self, view=None, first_separator=True):
+
−        entity = self.entity(0)
+
−        path = entity.breadcrumbs(view)
+
−        if path:
+
−            self.w(u'<span class="pathbar">')
+
−            if first_separator:
+
−                self.w(self.separator)
+
−            root = path.pop(0)
+
−            if isinstance(root, Entity):
+
−                self.w(u'<a href="%s">%s</a>' % (self.req.build_url(root.id),
+
−                                                 root.dc_type('plural')))
+
−                self.w(self.separator)
+
−            self.wpath_part(root, entity, not path)
+
−            for i, parent in enumerate(path):
+
−                self.w(self.separator)
+
−                self.w(u"\n")
+
−                self.wpath_part(parent, entity, i == len(path) - 1)
+
−            self.w(u'</span>')
+
−
+
−    def wpath_part(self, part, contextentity, last=False):
+
−        if isinstance(part, Entity):
+
−            if last and part.eid == contextentity.eid:
+
−                self.w(bc_title(part))
+
−            else:
+
−                part.view('breadcrumbs', w=self.w)
+
−        elif isinstance(part, tuple):
+
−            url, title = part
+
−            textsize = self.req.property_value('navigation.short-line-size')
+
−            self.w(u'<a href="%s">%s</a>' % (
+
−                html_escape(url), html_escape(cut(title, textsize))))
+
−        else:
+
−            textsize = self.req.property_value('navigation.short-line-size')
+
−            self.w(cut(unicode(part), textsize))
+
−
+
−
+
−class BreadCrumbComponent(BreadCrumbEntityVComponent):
+
−    __registry__ = 'components'
+
−    __select__ = (one_line_rset() & implements(IBreadCrumbs))
+
−    visible = True
+
−
+
−
+
−class BreadCrumbView(EntityView):
+
−    id = 'breadcrumbs'
+
−
+
−    def cell_call(self, row, col):
+
−        entity = self.entity(row, col)
+
−        desc = html_escape(cut(entity.dc_description(), 50))
+
−        self.w(u'<a href="%s" title="%s">%s</a>' % (
+
−            html_escape(entity.absolute_url()), desc, bc_title(entity)))