--- a/web/views/timeline.py	Thu Feb 12 13:52:58 2015 +0100
+++ b/web/views/timeline.py	Mon Dec 01 11:52:58 2014 +0100
@@ -1,4 +1,4 @@
-# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# copyright 2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
 #
 # This file is part of CubicWeb.
@@ -15,124 +15,20 @@
 #
 # You should have received a copy of the GNU Lesser General Public License along
 # with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
-"""basic support for SIMILE's timeline widgets
 
-cf. http://code.google.com/p/simile-widgets/
-"""
-
-__docformat__ = "restructuredtext en"
-
-from logilab.mtconverter import xml_escape
-from logilab.common.date import ustrftime
-
-from cubicweb.predicates import adaptable
-from cubicweb.view import EntityView, StartupView
-from cubicweb.utils import json_dumps
-
-_ = unicode
-
-class TimelineJsonView(EntityView):
-    """generates a json file to feed Timeline.loadJSON()
-    NOTE: work in progress (image_url, bubbleUrl and so on
-    should be properties of entity classes or subviews)
-    """
-    __regid__ = 'timeline-json'
-    __select__ = adaptable('ICalendarable')
-
-    binary = True
-    templatable = False
-    content_type = 'application/json'
-
-    date_fmt = '%Y/%m/%d'
-
-    def call(self):
-        events = []
-        for entity in self.cw_rset.entities():
-            event = self.build_event(entity)
-            if event is not None:
-                events.append(event)
-        timeline_data = {'dateTimeFormat': self.date_fmt,
-                         'events': events}
-        self.w(json_dumps(timeline_data))
-
-    # FIXME: those properties should be defined by the entity class
-    def onclick_url(self, entity):
-        return entity.absolute_url()
-
-    def onclick(self, entity):
-        url = self.onclick_url(entity)
-        if url:
-            return u"javascript: document.location.href='%s'" % url
-        return None
+try:
+    from cubes.timeline.views import (
+            TimelineJsonView,
+            TimelineViewMixIn,
+            TimelineView,
+            StaticTimelineView)
 
-    def build_event(self, entity):
-        """converts `entity` into a JSON object
-        {'start': '1891',
-        'end': '1915',
-        'title': 'Portrait of Horace Brodsky',
-        'description': 'by Henri Gaudier-Brzeska, French Sculptor, 1891-1915',
-        'image': 'http://imagecache2.allposters.com/images/BRGPOD/102770_b.jpg',
-        'link': 'http://www.allposters.com/-sp/Portrait-of-Horace-Brodsky-Posters_i1584413_.htm'
-        }
-        """
-        icalendarable = entity.cw_adapt_to('ICalendarable')
-        start = icalendarable.start
-        stop = icalendarable.stop
-        start = start or stop
-        if start is None and stop is None:
-            return None
-        event_data = {'start': ustrftime(start, self.date_fmt),
-                      'title': xml_escape(entity.dc_title()),
-                      'description': entity.dc_description(format='text/html'),
-                      'link': entity.absolute_url(),
-                      }
-        onclick = self.onclick(entity)
-        if onclick:
-            event_data['onclick'] = onclick
-        if stop:
-            event_data['end'] = ustrftime(stop, self.date_fmt)
-        return event_data
-
-
-class TimelineViewMixIn(object):
-    widget_class = 'TimelineWidget'
-    jsfiles = ('cubicweb.timeline-bundle.js', 'cubicweb.widgets.js',
-               'cubicweb.timeline-ext.js', 'cubicweb.ajax.js')
+except ImportError:
+    pass
+else:
+    from logilab.common.deprecation import class_moved
 
-    def render_url(self, loadurl, tlunit=None):
-        tlunit = tlunit or self._cw.form.get('tlunit')
-        self._cw.add_js(self.jsfiles)
-        self._cw.add_css('timeline-bundle.css')
-        if tlunit:
-            additional = u' cubicweb:tlunit="%s"' % tlunit
-        else:
-            additional = u''
-        self.w(u'<div class="widget" cubicweb:wdgtype="%s" '
-               u'cubicweb:loadtype="auto" cubicweb:loadurl="%s" %s >' %
-               (self.widget_class, xml_escape(loadurl),
-                additional))
-        self.w(u'</div>')
-
-
-class TimelineView(TimelineViewMixIn, EntityView):
-    """builds a cubicweb timeline widget node"""
-    __regid__ = 'timeline'
-    title = _('timeline')
-    __select__ = adaptable('ICalendarable')
-    paginable = False
-    def call(self, tlunit=None):
-        self._cw.html_headers.define_var('Timeline_urlPrefix', self._cw.datadir_url)
-        rql = self.cw_rset.printable_rql()
-        loadurl = self._cw.build_url(rql=rql, vid='timeline-json')
-        self.render_url(loadurl, tlunit)
-
-
-class StaticTimelineView(TimelineViewMixIn, StartupView):
-    """similar to `TimelineView` but loads data from a static
-    JSON file instead of one after a RQL query.
-    """
-    __regid__ = 'static-timeline'
-
-    def call(self, loadurl, tlunit=None, wdgclass=None):
-        self.widget_class = wdgclass or self.widget_class
-        self.render_url(loadurl, tlunit)
+    TimelineJsonView = class_moved(TimelineJsonView, 'TimelineJsonView')
+    TimelineViewMixIn = class_moved(TimelineViewMixIn, 'TimelineViewMixIn')
+    TimelineView = class_moved(TimelineView, 'TimelineView')
+    StaticTimelineView = class_moved(StaticTimelineView, 'StaticTimelineView')