# copyright 2003-2010 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/>.
"""navigation components definition for CubicWeb web client
"""
__docformat__ = "restructuredtext en"
_ = unicode
from warnings import warn
from logilab.mtconverter import xml_escape
#from cubicweb.interfaces import IBreadCrumbs
from cubicweb.selectors import (implements, one_line_rset, adaptable,
one_etype_rset, multi_lines_rset, any_rset)
from cubicweb.view import EntityView, Component, EntityAdapter
# don't use AnyEntity since this may cause bug with isinstance() due to reloading
from cubicweb.entity import Entity
from cubicweb import tags, uilib
# ease bw compat
def ibreadcrumb_adapter(entity):
if hasattr(entity, 'breadcrumbs'):
warn('[3.9] breadcrumbs() method is deprecated, define a custom '
'IBreadCrumbsAdapter for %s instead' % entity.__class__,
DeprecationWarning)
return entity
return entity.cw_adapt_to('IBreadCrumbs')
class IBreadCrumbsAdapter(EntityAdapter):
"""adapters for entities which can be"located" on some path to display in
the web ui
"""
__regid__ = 'IBreadCrumbs'
__select__ = implements('Any', accept_none=False)
def parent_entity(self):
if hasattr(self.entity, 'parent'):
warn('[3.9] parent() method is deprecated, define a '
'custom IBreadCrumbsAdapter/ITreeAdapter for %s instead'
% self.entity.__class__, DeprecationWarning)
return self.entity.parent()
itree = self.entity.cw_adapt_to('ITree')
if itree is not None:
return itree.parent()
return None
def breadcrumbs(self, view=None, recurs=False):
"""return a list containing some:
* tuple (url, label)
* entity
* simple label string
defining path from a root to the current view
the main view is given as argument so breadcrumbs may vary according
to displayed view (may be None). When recursing on a parent entity,
the `recurs` argument should be set to True.
"""
parent = self.parent_entity()
if parent is not None:
adapter = ibreadcrumb_adapter(parent)
path = adapter.breadcrumbs(view, True) + [self.entity]
else:
path = [self.entity]
if not recurs:
if view is None:
if 'vtitle' in self._cw.form:
# embeding for instance
path.append( self._cw.form['vtitle'] )
elif view.__regid__ != 'primary' and hasattr(view, 'title'):
path.append( self._cw._(view.title) )
return path
class BreadCrumbEntityVComponent(Component):
__regid__ = 'breadcrumbs'
__select__ = one_line_rset() & adaptable('IBreadCrumbs')
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)
adapter = ibreadcrumb_adapter(entity)
path = adapter.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): # XXX deprecates last argument?
if isinstance(part, Entity):
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__ = multi_lines_rset() & one_etype_rset() & \
adaptable('IBreadCrumbs')
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, **kwargs):
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, **kwargs):
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))