Improve routing: manage steps

* Manage steps in routing core
* Add extra parameters for steps in urls.py
* Modify the view to parse steps and send them to the routing core
* Manage steps in JS (add many step flags and send a correct request to
  the view)
* Manage a clear itinerary action in JS
* Add a new flag image for steps
* CSS improvement

1 files changed, 7 insertions, 3 deletions

diff --git a/chimere/views.py b/chimere/views.py
index ad4b0ca..df403e0 100644
--- a/chimere/views.py
+++ b/chimere/views.py
@@ -638,17 +638,21 @@ def redirectFromTinyURN(request, area_name='', tiny_urn=''):
         return redir
     return HttpResponseRedirect(response_dct['extra_url'] + parameters)
 
-def route(request, area_name, lon1, lat1, lon2, lat2, transport='foot'):
+def route(request, area_name, lon1, lat1, lonlat_steps, lon2, lat2,
+          transport='foot'):
     '''
     Get the JSON for a route
     '''
     try:
         lon1, lat1 = float(lon1), float(lat1)
         lon2, lat2 = float(lon2), float(lat2)
+        steps = [float(lonlat) for lonlat in lonlat_steps.split('_') if lonlat]
+        # regroup by 2
+        steps = [(steps[i*2], steps[i*2+1]) for i in range(len(steps)/2)]
     except ValueError:
         return HttpResponse('no results')
-    jsons, desc = router.route(lon1, lat1, lon2, lat2, transport=transport,
-                         session_id=request.session.session_key)
+    jsons, desc = router.route(lon1, lat1, lon2, lat2, steps=steps,
+                               transport=transport)
     if not jsons:
         return HttpResponse('no results')
     jsonencoder = simplejson.JSONEncoder()