"""abstract box classes for CubicWeb web client
:organization: Logilab
:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
"""
__docformat__ = "restructuredtext en"
from logilab.common.decorators import cached
from logilab.mtconverter import html_escape
from cubicweb import Unauthorized
from cubicweb.common.registerers import (accepts_registerer,
extresources_registerer,
etype_rtype_priority_registerer)
from cubicweb.common.selectors import (etype_rtype_selector, onelinerset_selector,
accept_selector, accept_rtype_selector,
primaryview_selector, contextprop_selector)
from cubicweb.common.view import Template
from cubicweb.common.appobject import ReloadableMixIn
from cubicweb.web.htmlwidgets import (BoxLink, BoxWidget, SideBoxWidget,
RawBoxItem, BoxSeparator)
from cubicweb.web.action import UnregisteredAction
_ = unicode
class BoxTemplate(Template):
"""base template for boxes, usually a (contextual) list of possible
actions. Various classes attributes may be used to control the box
rendering.
You may override on of the formatting callbacks is this is not necessary
for your custom box.
Classes inheriting from this class usually only have to override call
to fetch desired actions, and then to do something like ::
box.render(self.w)
"""
__registry__ = 'boxes'
__selectors__ = Template.__selectors__ + (contextprop_selector,)
categories_in_order = ()
property_defs = {
_('visible'): dict(type='Boolean', default=True,
help=_('display the box or not')),
_('order'): dict(type='Int', default=99,
help=_('display order of the box')),
# XXX 'incontext' boxes are handled by the default primary view
_('context'): dict(type='String', default='left',
vocabulary=(_('left'), _('incontext'), _('right')),
help=_('context where this box should be displayed')),
}
context = 'left'
htmlitemclass = 'boxItem'
def sort_actions(self, actions):
"""return a list of (category, actions_sorted_by_title)"""
result = []
actions_by_cat = {}
for action in actions:
actions_by_cat.setdefault(action.category, []).append((action.title, action))
for key, values in actions_by_cat.items():
actions_by_cat[key] = [act for title, act in sorted(values)]
for cat in self.categories_in_order:
if cat in actions_by_cat:
result.append( (cat, actions_by_cat[cat]) )
for item in sorted(actions_by_cat.items()):
result.append(item)
return result
def mk_action(self, title, path, escape=True, **kwargs):
"""factory function to create dummy actions compatible with the
.format_actions method
"""
if escape:
title = html_escape(title)
return self.box_action(self._action(title, path, **kwargs))
def _action(self, title, path, **kwargs):
return UnregisteredAction(self.req, self.rset, title, path, **kwargs)
# formating callbacks
def boxitem_link_tooltip(self, action):
if action.id:
return u'keyword: %s' % action.id
return u''
def box_action(self, action):
cls = getattr(action, 'html_class', lambda: None)() or self.htmlitemclass
return BoxLink(action.url(), self.req._(action.title),
cls, self.boxitem_link_tooltip(action))
class RQLBoxTemplate(BoxTemplate):
"""abstract box for boxes displaying the content of a rql query not
related to the current result set.
It rely on etype, rtype (both optional, usable to control registration
according to application schema and display according to connected
user's rights) and rql attributes
"""
__registerer__ = etype_rtype_priority_registerer
__selectors__ = BoxTemplate.__selectors__ + (etype_rtype_selector,)
rql = None
def to_display_rql(self):
assert self.rql is not None, self.id
return (self.rql,)
def call(self, **kwargs):
try:
rset = self.req.execute(*self.to_display_rql())
except Unauthorized:
# can't access to something in the query, forget this box
return
if len(rset) == 0:
return
box = BoxWidget(self.req._(self.title), self.id)
for i, (teid, tname) in enumerate(rset):
entity = rset.get_entity(i, 0)
box.append(self.mk_action(tname, entity.absolute_url()))
box.render(w=self.w)
class UserRQLBoxTemplate(RQLBoxTemplate):
"""same as rql box template but the rql is build using the eid of the
request's user
"""
def to_display_rql(self):
assert self.rql is not None, self.id
return (self.rql, {'x': self.req.user.eid}, 'x')
class ExtResourcesBoxTemplate(BoxTemplate):
"""base class for boxes displaying external resources such as the RSS logo.
It should list necessary resources with the .need_resources attribute.
"""
__registerer__ = extresources_registerer
need_resources = ()
class EntityBoxTemplate(BoxTemplate):
"""base class for boxes related to a single entity"""
__registerer__ = accepts_registerer
__selectors__ = (onelinerset_selector, primaryview_selector,
contextprop_selector, etype_rtype_selector,
accept_rtype_selector, accept_selector)
accepts = ('Any',)
context = 'incontext'
def call(self, row=0, col=0, **kwargs):
"""classes inheriting from EntityBoxTemplate should defined cell_call,
"""
self.cell_call(row, col, **kwargs)
class EditRelationBoxTemplate(ReloadableMixIn, EntityBoxTemplate):
"""base class for boxes which let add or remove entities linked
by a given relation
subclasses should define at least id, rtype and target
class attributes.
"""
def cell_call(self, row, col):
self.req.add_js('cubicweb.ajax.js')
entity = self.entity(row, col)
box = SideBoxWidget(display_name(self.req, self.rtype), self.id)
count = self.w_related(box, entity)
if count:
box.append(BoxSeparator())
self.w_unrelated(box, entity)
box.render(self.w)
def div_id(self):
return self.id
@cached
def xtarget(self):
if self.target == 'subject':
return 'object', 'subject'
return 'subject', 'object'
def box_item(self, entity, etarget, rql, label):
"""builds HTML link to edit relation between `entity` and `etarget`
"""
x, target = self.xtarget()
args = {x[0] : entity.eid, target[0] : etarget.eid}
url = self.user_rql_callback((rql, args))
# for each target, provide a link to edit the relation
label = u'[<a href="%s">%s</a>] %s' % (url, label,
etarget.view('incontext'))
return RawBoxItem(label, liclass=u'invisible')
def w_related(self, box, entity):
"""appends existing relations to the `box`"""
rql = 'DELETE S %s O WHERE S eid %%(s)s, O eid %%(o)s' % self.rtype
related = self.related_entities(entity)
for etarget in related:
box.append(self.box_item(entity, etarget, rql, u'-'))
return len(related)
def w_unrelated(self, box, entity):
"""appends unrelated entities to the `box`"""
rql = 'SET S %s O WHERE S eid %%(s)s, O eid %%(o)s' % self.rtype
for etarget in self.unrelated_entities(entity):
box.append(self.box_item(entity, etarget, rql, u'+'))
def unrelated_entities(self, entity):
"""returns the list of unrelated entities
if etype is not defined on the Box's class, the default
behaviour is to use the entity's appropraite vocabulary function
"""
x, target = self.xtarget()
# use entity.unrelated if we've been asked for a particular etype
if hasattr(self, 'etype'):
return entity.unrelated(self.rtype, self.etype, x).entities()
# in other cases, use vocabulary functions
entities = []
for _, eid in entity.vocabulary(self.rtype, x):
if eid is not None:
rset = self.req.eid_rset(eid)
entities.append(rset.get_entity(0, 0))
return entities
def related_entities(self, entity):
x, target = self.xtarget()
return entity.related(self.rtype, x, entities=True)