+
−"""Specific views for entities implementing IGeocodable
+
−
+
−:organization: Logilab
+
−:copyright: 2001-2010 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"
+
−
+
−import simplejson
+
−
+
−from cubicweb.interfaces import IGeocodable
+
−from cubicweb.view import EntityView
+
−from cubicweb.selectors import implements
+
−
+
−class GeocodingJsonView(EntityView):
+
−    __regid__ = 'geocoding-json'
+
−    __select__ = implements(IGeocodable)
+
−
+
−    binary = True
+
−    templatable = False
+
−    content_type = 'application/json'
+
−
+
−    def call(self):
+
−        # remove entities that don't define latitude and longitude
+
−        self.cw_rset = self.cw_rset.filtered_rset(lambda e: e.latitude and e.longitude)
+
−        zoomlevel = self._cw.form.pop('zoomlevel', 8)
+
−        extraparams = self._cw.form.copy()
+
−        extraparams.pop('vid', None)
+
−        extraparams.pop('rql', None)
+
−        markers = [self.build_marker_data(rowidx, extraparams)
+
−                   for rowidx in xrange(len(self.cw_rset))]
+
−        center = {
+
−            'latitude': sum(marker['latitude'] for marker in markers) / len(markers),
+
−            'longitude': sum(marker['longitude'] for marker in markers) / len(markers),
+
−            }
+
−        geodata = {
+
−            'zoomlevel': int(zoomlevel),
+
−            'center': center,
+
−            'markers': markers,
+
−            }
+
−        self.w(simplejson.dumps(geodata))
+
−
+
−    def build_marker_data(self, row, extraparams):
+
−        entity = self.cw_rset.get_entity(row, 0)
+
−        icon = None
+
−        if hasattr(entity, 'marker_icon'):
+
−            icon = entity.marker_icon()
+
−        else:
+
−            icon = (self._cw.external_resource('GMARKER_ICON'), (20, 34), (4, 34), None)
+
−        return {'latitude': entity.latitude, 'longitude': entity.longitude,
+
−                'title': entity.dc_long_title(),
+
−                #icon defines : (icon._url, icon.size,  icon.iconAncho', icon.shadow)
+
−                'icon': icon,
+
−                'bubbleUrl': entity.absolute_url(vid='gmap-bubble', __notemplate=1, **extraparams),
+
−                }
+
−
+
−
+
−class GoogleMapBubbleView(EntityView):
+
−    __regid__ = 'gmap-bubble'
+
−    __select__ = implements(IGeocodable)
+
−
+
−    def cell_call(self, row, col):
+
−        entity = self.cw_rset.get_entity(row, col)
+
−        self.w(u'<div>%s</div>' % entity.view('oneline'))
+
−        # FIXME: we should call something like address-view if available
+
−
+
−
+
−class GoogleMapsView(EntityView):
+
−    __regid__ = 'gmap-view'
+
−    __select__ = implements(IGeocodable)
+
−
+
−    paginable = False
+
−
+
−    def call(self, gmap_key, width=400, height=400, uselabel=True, urlparams=None):
+
−        self._cw.demote_to_html()
+
−        # remove entities that don't define latitude and longitude
+
−        self.cw_rset = self.cw_rset.filtered_rset(lambda e: e.latitude and e.longitude)
+
−        self._cw.add_js('http://maps.google.com/maps?sensor=false&file=api&v=2&key=%s' % gmap_key,
+
−                        localfile=False)
+
−        self._cw.add_js( ('cubicweb.widgets.js', 'cubicweb.gmap.js', 'gmap.utility.labeledmarker.js') )
+
−        rql = self.cw_rset.printable_rql()
+
−        if urlparams is None:
+
−            loadurl = self._cw.build_url(rql=rql, vid='geocoding-json')
+
−        else:
+
−            loadurl = self._cw.build_url(rql=rql, vid='geocoding-json', **urlparams)
+
−        self.w(u'<div style="width: %spx; height: %spx;" class="widget gmap" '
+
−               u'cubicweb:wdgtype="GMapWidget" cubicweb:loadtype="auto" '
+
−               u'cubicweb:loadurl="%s" cubicweb:uselabel="%s"> </div>' % (width, height, loadurl, uselabel))
+
−
+
−
+
−class GoogeMapsLegend(EntityView):
+
−    __regid__ = 'gmap-legend'
+
−
+
−    def call(self):
+
−        self.w(u'<ol>')
+
−        for rowidx in xrange(len(self.cw_rset)):
+
−            self.w(u'<li>')
+
−            self.wview('listitem', self.cw_rset, row=rowidx, col=0)
+
−            self.w(u'</li>')
+
−        self.w(u'</ol>')