+
−"""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 xml_escape
+
−
+
−from cubicweb.interfaces import IBreadCrumbs
+
−from cubicweb.selectors import (one_line_rset, implements, one_etype_rset,
+
−                                two_lines_rset, any_rset)
+
−from cubicweb.view import EntityView, Component
+
−# don't use AnyEntity since this may cause bug with isinstance() due to reloading
+
−from cubicweb.entity import Entity
+
−from cubicweb import tags, uilib
+
−
+
−
+
−class BreadCrumbEntityVComponent(Component):
+
−    __regid__ = 'breadcrumbs'
+
−    __select__ = one_line_rset() & implements(IBreadCrumbs, accept_none=False)
+
−
+
−    cw_property_defs = {
+
−        _('visible'):  dict(type='Boolean', default=True,
+
−                            help=_('display the component or not')),
+
−        }
+
−    title = _('contentnavigation_breadcrumbs')
+
−    help = _('contentnavigation_breadcrumbs_description')
+
−    separator = u' > '
+
−    link_template = u'<a href="%s">%s</a>'
+
−
+
−    def call(self, view=None, first_separator=True):
+
−        entity = self.cw_rset.get_entity(0, 0)
+
−        path = entity.breadcrumbs(view)
+
−        if path:
+
−            self.open_breadcrumbs()
+
−            if first_separator:
+
−                self.w(self.separator)
+
−            self.render_breadcrumbs(entity, path)
+
−            self.close_breadcrumbs()
+
−
+
−    def open_breadcrumbs(self):
+
−        self.w(u'<span id="breadcrumbs" class="pathbar">')
+
−
+
−    def close_breadcrumbs(self):
+
−        self.w(u'</span>')
+
−
+
−    def render_breadcrumbs(self, contextentity, path):
+
−        root = path.pop(0)
+
−        if isinstance(root, Entity):
+
−            self.w(self.link_template % (self._cw.build_url(root.__regid__),
+
−                                         root.dc_type('plural')))
+
−            self.w(self.separator)
+
−        self.wpath_part(root, contextentity, not path)
+
−        for i, parent in enumerate(path):
+
−            self.w(self.separator)
+
−            self.w(u"\n")
+
−            self.wpath_part(parent, contextentity, i == len(path) - 1)
+
−
+
−    def wpath_part(self, part, contextentity, last=False):
+
−        if isinstance(part, Entity):
+
−            if last and part.eid == contextentity.eid:
+
−                self.w(xml_escape(part.view('breadcrumbtext')))
+
−            else:
+
−                self.w(part.view('breadcrumbs'))
+
−        elif isinstance(part, tuple):
+
−            url, title = part
+
−            textsize = self._cw.property_value('navigation.short-line-size')
+
−            self.w(self.link_template % (
+
−                xml_escape(url), xml_escape(uilib.cut(title, textsize))))
+
−        else:
+
−            textsize = self._cw.property_value('navigation.short-line-size')
+
−            self.w(uilib.cut(unicode(part), textsize))
+
−
+
−
+
−class BreadCrumbETypeVComponent(BreadCrumbEntityVComponent):
+
−    __select__ = two_lines_rset() & one_etype_rset() & \
+
−                 implements(IBreadCrumbs, accept_none=False)
+
−
+
−    def render_breadcrumbs(self, contextentity, path):
+
−        # XXX hack: only display etype name or first non entity path part
+
−        root = path.pop(0)
+
−        if isinstance(root, Entity):
+
−            self.w(u'<a href="%s">%s</a>' % (self._cw.build_url(root.__regid__),
+
−                                             root.dc_type('plural')))
+
−        else:
+
−            self.wpath_part(root, contextentity, not path)
+
−
+
−
+
−class BreadCrumbAnyRSetVComponent(BreadCrumbEntityVComponent):
+
−    __select__ = any_rset()
+
−
+
−    def call(self, view=None, first_separator=True):
+
−        self.w(u'<span id="breadcrumbs" class="pathbar">')
+
−        if first_separator:
+
−            self.w(self.separator)
+
−        self.w(self._cw._('search'))
+
−        self.w(u'</span>')
+
−
+
−
+
−class BreadCrumbView(EntityView):
+
−    __regid__ = 'breadcrumbs'
+
−
+
−    def cell_call(self, row, col):
+
−        entity = self.cw_rset.get_entity(row, col)
+
−        desc = xml_escape(uilib.cut(entity.dc_description(), 50))
+
−        # XXX remember camember : tags.a autoescapes !
+
−        self.w(tags.a(entity.view('breadcrumbtext'),
+
−                      href=entity.absolute_url(), title=desc))
+
−
+
−
+
−class BreadCrumbTextView(EntityView):
+
−    __regid__ = 'breadcrumbtext'
+
−
+
−    def cell_call(self, row, col):
+
−        entity = self.cw_rset.get_entity(row, col)
+
−        textsize = self._cw.property_value('navigation.short-line-size')
+
−        self.w(uilib.cut(entity.dc_title(), textsize))