web/views/ibreadcrumbs.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
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"""navigation components definition for CubicWeb web client
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:organization: Logilab
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from logilab.mtconverter import xml_escape
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from cubicweb.interfaces import IBreadCrumbs
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from cubicweb.selectors import (one_line_rset, implements, one_etype_rset,
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                                two_lines_rset, any_rset)
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from cubicweb.view import EntityView, Component
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# don't use AnyEntity since this may cause bug with isinstance() due to reloading
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from cubicweb.entity import Entity
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from cubicweb.common.uilib import cut
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def bc_title(entity):
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    textsize = entity.req.property_value('navigation.short-line-size')
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    return xml_escape(cut(entity.dc_title(), textsize))
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# XXX only provides the component version
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class BreadCrumbEntityVComponent(Component):
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    id = 'breadcrumbs'
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    __select__ = one_line_rset() & implements(IBreadCrumbs)
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    property_defs = {
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        _('visible'):  dict(type='Boolean', default=True,
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                            help=_('display the component or not')),
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        }
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    title = _('contentnavigation_breadcrumbs')
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    help = _('contentnavigation_breadcrumbs_description')
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    separator = u'&#160;&gt;&#160;'
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    def call(self, view=None, first_separator=True):
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        entity = self.rset.get_entity(0,0)
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        path = entity.breadcrumbs(view)
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        if path:
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            self.w(u'<span id="breadcrumbs" class="pathbar">')
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            if first_separator:
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                self.w(self.separator)
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            self.render_breadcrumbs(entity, path)
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            self.w(u'</span>')
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    def render_breadcrumbs(self, contextentity, path):
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        root = path.pop(0)
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        if isinstance(root, Entity):
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            self.w(u'<a href="%s">%s</a>' % (self.req.build_url(root.id),
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                                             root.dc_type('plural')))
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            self.w(self.separator)
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        self.wpath_part(root, contextentity, not path)
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        for i, parent in enumerate(path):
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            self.w(self.separator)
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            self.w(u"\n")
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            self.wpath_part(parent, contextentity, i == len(path) - 1)
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    def wpath_part(self, part, contextentity, last=False):
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        if isinstance(part, Entity):
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            if last and part.eid == contextentity.eid:
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                self.w(bc_title(part))
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            else:
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                part.view('breadcrumbs', w=self.w)
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        elif isinstance(part, tuple):
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            url, title = part
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            textsize = self.req.property_value('navigation.short-line-size')
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            self.w(u'<a href="%s">%s</a>' % (
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                xml_escape(url), xml_escape(cut(title, textsize))))
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        else:
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            textsize = self.req.property_value('navigation.short-line-size')
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            self.w(cut(unicode(part), textsize))
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class BreadCrumbETypeVComponent(BreadCrumbEntityVComponent):
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    __select__ = two_lines_rset() & one_etype_rset() & implements(IBreadCrumbs)
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    def render_breadcrumbs(self, contextentity, path):
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        # XXX hack: only display etype name or first non entity path part
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        root = path.pop(0)
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        if isinstance(root, Entity):
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            self.w(u'<a href="%s">%s</a>' % (self.req.build_url(root.id),
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                                             root.dc_type('plural')))
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        else:
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            self.wpath_part(root, contextentity, not path)
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class BreadCrumbAnyRSetVComponent(BreadCrumbEntityVComponent):
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    __select__ = any_rset()
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    def call(self, view=None, first_separator=True):
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        self.w(u'<span id="breadcrumbs" class="pathbar">')
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        if first_separator:
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            self.w(self.separator)
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        self.w(self.req._('search'))
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        self.w(u'</span>')
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   100
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   101
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   102
class BreadCrumbView(EntityView):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
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   103
    id = 'breadcrumbs'
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   104
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   105
    def cell_call(self, row, col):
2789
39712da6f397 R propagate deprecation of AppObject.entity()
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2312
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   106
        entity = self.rset.get_entity(row, col)
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af4d8f75c5db use xml_escape
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
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   107
        desc = xml_escape(cut(entity.dc_description(), 50))
1882
ce662160bb46 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1802
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   108
        self.w(u'<a href="%s" title="%s">%s</a>' % (
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
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   109
            xml_escape(entity.absolute_url()), desc, bc_title(entity)))