From f2bf38606e281290fee8273e247afc54f08a0a47 Mon Sep 17 00:00:00 2001
From: John Firebaugh 
Date: Tue, 13 May 2014 11:21:48 -0700
Subject: [PATCH] Permalinks for directions
---
 app/assets/javascripts/index.js               |  51 +---
 .../javascripts/index/directions.js.erb       | 227 ++++++++++--------
 .../index/directions_engines/graphhopper.js   |  16 +-
 .../index/directions_engines/mapquest.js      |  12 +-
 .../index/directions_engines/osrm.js          |   9 +-
 app/assets/javascripts/index/search.js        |  34 ++-
 app/assets/javascripts/leaflet.map.js.erb     |  13 +
 app/assets/javascripts/router.js              |   9 +-
 app/assets/stylesheets/common.css.scss        |  14 +-
 app/assets/stylesheets/small.css.scss         |   4 +-
 app/controllers/directions_controller.rb      |   9 +
 app/views/directions/search.html.erb          |   1 +
 app/views/layouts/_search.html.erb            |  50 ++--
 config/routes.rb                              |   3 +
 14 files changed, 244 insertions(+), 208 deletions(-)
 create mode 100644 app/controllers/directions_controller.rb
 create mode 100644 app/views/directions/search.html.erb
diff --git a/app/assets/javascripts/index.js b/app/assets/javascripts/index.js
index 3d063189f..1c0812485 100644
--- a/app/assets/javascripts/index.js
+++ b/app/assets/javascripts/index.js
@@ -16,10 +16,12 @@
 //= require index/directions
 //= require router
 
-(function() {
+$(document).ready(function () {
   var loaderTimeout;
 
   OSM.loadSidebarContent = function(path, callback) {
+    map.setSidebarOverlaid(false);
+
     clearTimeout(loaderTimeout);
 
     loaderTimeout = setTimeout(function() {
@@ -67,9 +69,7 @@
       }
     });
   };
-})();
 
-$(document).ready(function () {
   var params = OSM.mapParams();
 
   var map = new L.OSM.Map("map", {
@@ -222,10 +222,8 @@ $(document).ready(function () {
   OSM.Index = function(map) {
     var page = {};
 
-    page.pushstate = function() {
-      $("#content").addClass("overlay-sidebar");
-      map.invalidateSize({pan: false})
-        .panBy([-350, 0], {animate: false});
+    page.pushstate = page.popstate = function() {
+      map.setSidebarOverlaid(true);
       document.title = I18n.t('layouts.project_name.title');
     };
 
@@ -236,18 +234,6 @@ $(document).ready(function () {
       return map.getState();
     };
 
-    page.popstate = function() {
-      $("#content").addClass("overlay-sidebar");
-      map.invalidateSize({pan: false});
-      document.title = I18n.t('layouts.project_name.title');
-    };
-
-    page.unload = function() {
-      map.panBy([350, 0], {animate: false});
-      $("#content").removeClass("overlay-sidebar");
-      map.invalidateSize({pan: false});
-    };
-
     return page;
   };
 
@@ -281,12 +267,12 @@ $(document).ready(function () {
     return page;
   };
 
-  var directions = OSM.Directions(map);
   var history = OSM.History(map);
 
   OSM.router = OSM.Router(map, {
     "/":                           OSM.Index(map),
     "/search":                     OSM.Search(map),
+    "/directions":                 OSM.Directions(map),
     "/export":                     OSM.Export(map),
     "/note/new":                   OSM.NewNote(map),
     "/history/friends":            history,
@@ -322,29 +308,4 @@ $(document).ready(function () {
     if (OSM.router.route(this.pathname + this.search + this.hash))
       e.preventDefault();
   });
-
-  $(".search_form").on("submit", function(e) {
-    e.preventDefault();
-    if ($(".query_wrapper.routing").is(":visible")) {
-      // Directions
-      directions.requestRoute(true, true);
-    } else {
-      // Search
-      $("header").addClass("closed");
-      var query = $(this).find("input[name=query]").val();
-      if (query) {
-        OSM.router.route("/search?query=" + encodeURIComponent(query) + OSM.formatHash(map));
-      } else {
-        OSM.router.route("/" + OSM.formatHash(map));
-      }
-    }
-  });
-
-  $(".describe_location").on("click", function(e) {
-    e.preventDefault();
-    var precision = OSM.zoomPrecision(map.getZoom());
-    OSM.router.route("/search?query=" + encodeURIComponent(
-      map.getCenter().lat.toFixed(precision) + "," +
-      map.getCenter().lng.toFixed(precision)));
-  });
 });
diff --git a/app/assets/javascripts/index/directions.js.erb b/app/assets/javascripts/index/directions.js.erb
index 9c9df6515..3520f3ecd 100644
--- a/app/assets/javascripts/index/directions.js.erb
+++ b/app/assets/javascripts/index/directions.js.erb
@@ -46,7 +46,9 @@ OSM.Directions = function (map) {
       if (dragging && !chosenEngine.draggable) return;
       if (dragging && awaitingRoute) return;
       endpoint.setLatLng(e.target.getLatLng());
-      r.requestRoute(!dragging, false);
+      if (map.hasLayer(polyline)) {
+        getRoute();
+      }
     });
 
     input.on("change", function (e) {
@@ -69,13 +71,14 @@ OSM.Directions = function (map) {
 
         if (awaitingGeocode) {
           awaitingGeocode = false;
-          r.requestRoute(true, true);
+          getRoute();
         }
       });
     });
 
     endpoint.setLatLng = function (ll) {
-      input.val(Math.round(ll.lat * 10000) / 10000 + " " + Math.round(ll.lng * 10000) / 10000);
+      var precision = OSM.zoomPrecision(map.getZoom());
+      input.val(ll.lat.toFixed(precision) + ", " + ll.lng.toFixed(precision));
       endpoint.latlng = ll;
       endpoint.marker
         .setLatLng(ll)
@@ -102,109 +105,41 @@ OSM.Directions = function (map) {
     return h + ":" + (m < 10 ? '0' : '') + m;
   }
 
-  var engines = OSM.Directions.engines;
-
-  engines.sort(function (a, b) {
-    return I18n.t(a.name) > I18n.t(b.name);
-  });
-
-  var select = $('select.routing_engines');
-
-  for (var i = 0; i < engines.length; i++) {
-    var engine = engines[i];
-
-    select.append("");
-
-    if (engine.name == 'javascripts.directions.engines.osrm_car') {
-      chosenEngine = engine;
-      select.val(i);
-    }
-  }
-
-  select.on("change", function (e) {
-    chosenEngine = engines[e.target.selectedIndex];
-    if (map.hasLayer(polyline)) { // and if a route is currently showing, must also refresh, else confusion
-      r.requestRoute(true, false);
-    }
-  });
-
-  $(".get_directions").on("click", function (e) {
-    e.preventDefault();
-    $(".search").hide();
-    $(".routing").show();
-    $(".search_form input[type='submit']").addClass("routing_submit");
-    $(".query_wrapper.routing [name=route_from]").focus();
-
-    $("#map").on('dragend dragover', function (e) {
-      e.preventDefault();
-    });
-
-    $("#map").on('drop', function (e) {
-      e.preventDefault();
-      var oe = e.originalEvent;
-      var id = oe.dataTransfer.getData('id');
-      var pt = L.DomEvent.getMousePosition(oe, map.getContainer());  // co-ordinates of the mouse pointer at present
-      pt.x += Number(oe.dataTransfer.getData('offsetX'));
-      pt.y += Number(oe.dataTransfer.getData('offsetY'));
-      var ll = map.containerPointToLatLng(pt);
-      endpoints[id === 'marker_from' ? 0 : 1].setLatLng(ll);
-      r.requestRoute(true, false);
-    });
-
-    $(".routing_marker").on('dragstart', function (e) {
-      e.originalEvent.dataTransfer.effectAllowed = 'move';
-      e.originalEvent.dataTransfer.setData('id', this.id);
-      var xo = e.originalEvent.clientX - $(e.target).offset().left;
-      var yo = e.originalEvent.clientY - $(e.target).offset().top;
-      e.originalEvent.dataTransfer.setData('offsetX', e.originalEvent.target.width / 2 - xo);
-      e.originalEvent.dataTransfer.setData('offsetY', e.originalEvent.target.height - yo);
+  function setEngine(id) {
+    engines.forEach(function(engine, i) {
+      if (engine.id == id) {
+        chosenEngine = engine;
+        select.val(i);
+      }
     });
-  });
-
-  $(".close_directions").on("click", function (e) {
-    e.preventDefault();
-    $(".search").show();
-    $(".routing").hide();
-    $(".search_form input[type='submit']").removeClass("routing_submit");
-    $("#content").addClass("overlay-sidebar");
-    $(".query_wrapper.routing input").val("");
-    map
-      .removeLayer(popup)
-      .removeLayer(polyline)
-      .removeLayer(endpoints[0].marker)
-      .removeLayer(endpoints[1].marker);
-    endpoints[0].latlng = endpoints[1].latlng = null;
-    $("#map").off('dragend drop dragover');
-    $(".routing_marker").off('dragstart');
-    $(".query_wrapper.search [name=query]").focus();
-  });
-
-  var r = {};
+  }
 
-  r.requestRoute = function (isFinal, updateZoom) {
+  function getRoute() {
     if (endpoints[0].awaitingGeocode || endpoints[1].awaitingGeocode) {
       awaitingGeocode = true;
       return;
     }
 
-    var origin = endpoints[0].latlng,
-      destination = endpoints[1].latlng;
+    var o = endpoints[0].latlng,
+        d = endpoints[1].latlng;
 
-    if (!origin || !destination) {
-      return;
-    }
+    if (!o || !d) return;
 
-    $(".query_wrapper.routing .spinner").show();
-    awaitingRoute = true;
+    var precision = OSM.zoomPrecision(map.getZoom());
 
-    if (updateZoom) {
-      map.fitBounds(L.latLngBounds(origin, destination).pad(0.05));
-    }
+    OSM.router.replace("/directions?" + querystring.stringify({
+      engine: chosenEngine.id,
+      route: o.lat.toFixed(precision) + ',' + o.lng.toFixed(precision) + ';' +
+             d.lat.toFixed(precision) + ',' + d.lng.toFixed(precision)
+    }));
+
+    $(".directions_form .spinner").show();
+    awaitingRoute = true;
 
-    chosenEngine.getRoute(isFinal, [origin, destination], function (err, route) {
+    chosenEngine.getRoute([o, d], function (err, route) {
       awaitingRoute = false;
 
-      $(".query_wrapper.routing .spinner").hide();
+      $(".directions_form .spinner").hide();
 
       if (err) {
         map.removeLayer(polyline);
@@ -220,14 +155,18 @@ OSM.Directions = function (map) {
         .setLatLngs(route.line)
         .addTo(map);
 
-      $("#content").removeClass("overlay-sidebar");
+      map.setSidebarOverlaid(false);
+
+      if (!dragging) {
+        map.fitBounds(polyline.getBounds().pad(0.05));
+      }
 
-      var html = ('').replace(/~/g, "'");
+        '';
 
       $('#sidebar_content')
         .html(html);
@@ -282,9 +221,103 @@ OSM.Directions = function (map) {
         I18n.t('javascripts.directions.instructions.courtesy', {link: chosenEngine.creditline}) +
         '
');
     });
+  }
+
+  var engines = OSM.Directions.engines;
+
+  engines.sort(function (a, b) {
+    a = I18n.t('javascripts.directions.engines.' + a.id);
+    b = I18n.t('javascripts.directions.engines.' + b.id);
+    return a.localeCompare(b);
+  });
+
+  var select = $('select.routing_engines');
+
+  engines.forEach(function(engine, i) {
+    select.append("");
+  });
+
+  setEngine('osrm_car');
+
+  select.on("change", function (e) {
+    chosenEngine = engines[e.target.selectedIndex];
+    if (map.hasLayer(polyline)) {
+      getRoute();
+    }
+  });
+
+  $(".directions_form").on("submit", function(e) {
+    e.preventDefault();
+    $("header").addClass("closed");
+    getRoute();
+  });
+
+  $(".routing_marker").on('dragstart', function (e) {
+    e.originalEvent.dataTransfer.effectAllowed = 'move';
+    e.originalEvent.dataTransfer.setData('id', this.id);
+    var xo = e.originalEvent.clientX - $(e.target).offset().left;
+    var yo = e.originalEvent.clientY - $(e.target).offset().top;
+    e.originalEvent.dataTransfer.setData('offsetX', e.originalEvent.target.width / 2 - xo);
+    e.originalEvent.dataTransfer.setData('offsetY', e.originalEvent.target.height - yo);
+  });
+
+  var page = {};
+
+  page.pushstate = page.popstate = function() {
+    $(".search_form").hide();
+    $(".directions_form").show();
+
+    $("#map").on('dragend dragover', function (e) {
+      e.preventDefault();
+    });
+
+    $("#map").on('drop', function (e) {
+      e.preventDefault();
+      var oe = e.originalEvent;
+      var id = oe.dataTransfer.getData('id');
+      var pt = L.DomEvent.getMousePosition(oe, map.getContainer());  // co-ordinates of the mouse pointer at present
+      pt.x += Number(oe.dataTransfer.getData('offsetX'));
+      pt.y += Number(oe.dataTransfer.getData('offsetY'));
+      var ll = map.containerPointToLatLng(pt);
+      endpoints[id === 'marker_from' ? 0 : 1].setLatLng(ll);
+      getRoute();
+    });
+
+    var params = querystring.parse(location.search.substring(1)),
+      route = (params.route || '').split(';');
+
+    if (params.engine) {
+      setEngine(params.engine);
+    }
+
+    var o = route[0] && L.latLng(route[0].split(',')),
+        d = route[1] && L.latLng(route[1].split(','));
+
+    if (o) endpoints[0].setLatLng(o);
+    if (d) endpoints[1].setLatLng(d);
+
+    map.setSidebarOverlaid(!o || !d);
+
+    getRoute();
+  };
+
+  page.load = function() {
+    page.pushstate();
+  };
+
+  page.unload = function() {
+    $(".search_form").show();
+    $(".directions_form").hide();
+    $("#map").off('dragend dragover drop');
+
+    map
+      .removeLayer(popup)
+      .removeLayer(polyline)
+      .removeLayer(endpoints[0].marker)
+      .removeLayer(endpoints[1].marker);
   };
 
-  return r;
+  return page;
 };
 
 OSM.Directions.engines = [];
diff --git a/app/assets/javascripts/index/directions_engines/graphhopper.js b/app/assets/javascripts/index/directions_engines/graphhopper.js
index d6e52070c..11d70efc5 100644
--- a/app/assets/javascripts/index/directions_engines/graphhopper.js
+++ b/app/assets/javascripts/index/directions_engines/graphhopper.js
@@ -1,4 +1,4 @@
-function GraphHopperEngine(vehicleName, vehicleParam) {
+function GraphHopperEngine(id, vehicleParam) {
   var GH_INSTR_MAP = {
     "-3": 6, // sharp left
     "-2": 7, // left
@@ -12,26 +12,24 @@ function GraphHopperEngine(vehicleName, vehicleParam) {
   };
 
   return {
-    name: "javascripts.directions.engines.graphhopper_" + vehicleName.toLowerCase(),
+    id: id,
     creditline: 'Graphhopper',
     draggable: false,
 
-    getRoute: function (isFinal, points, callback) {
+    getRoute: function (points, callback) {
       // documentation
       // https://github.com/graphhopper/graphhopper/blob/master/docs/web/api-doc.md
       var url = "http://graphhopper.com/api/1/route?"
         + vehicleParam
         + "&locale=" + I18n.currentLocale()
         + "&key=LijBPDQGfu7Iiq80w3HzwB4RUDJbMbhs6BU0dEnn"
-        + "&type=jsonp";
+        + "&type=jsonp"
+        + "&instructions=true";
 
       for (var i = 0; i < points.length; i++) {
         url += "&point=" + points[i].lat + ',' + points[i].lng;
       }
 
-      if (isFinal)
-        url += "&instructions=true";
-
       $.ajax({
         url: url,
         dataType: 'jsonp',
@@ -72,5 +70,5 @@ function GraphHopperEngine(vehicleName, vehicleParam) {
   };
 }
 
-OSM.Directions.addEngine(GraphHopperEngine("Bicycle", "vehicle=bike"), false);
-OSM.Directions.addEngine(GraphHopperEngine("Foot", "vehicle=foot"), false);
+OSM.Directions.addEngine(GraphHopperEngine("graphhopper_bicycle", "vehicle=bike"), false);
+OSM.Directions.addEngine(GraphHopperEngine("graphhopper_foot", "vehicle=foot"), false);
diff --git a/app/assets/javascripts/index/directions_engines/mapquest.js b/app/assets/javascripts/index/directions_engines/mapquest.js
index 3266795bc..935a1ca4c 100644
--- a/app/assets/javascripts/index/directions_engines/mapquest.js
+++ b/app/assets/javascripts/index/directions_engines/mapquest.js
@@ -3,7 +3,7 @@
 // http://open.mapquestapi.com/directions/
 // https://github.com/apmon/openstreetmap-website/blob/21edc353a4558006f0ce23f5ec3930be6a7d4c8b/app/controllers/routing_controller.rb#L153
 
-function MapQuestEngine(vehicleName, vehicleParam) {
+function MapQuestEngine(id, vehicleParam) {
   var MQ_SPRITE_MAP = {
     0: 1, // straight
     1: 2, // slight right
@@ -27,11 +27,11 @@ function MapQuestEngine(vehicleName, vehicleParam) {
   };
 
   return {
-    name: "javascripts.directions.engines.mapquest_" + vehicleName.toLowerCase(),
+    id: id,
     creditline: 'MapQuest  ',
     draggable: false,
 
-    getRoute: function (isFinal, points, callback) {
+    getRoute: function (points, callback) {
       var url = document.location.protocol + "//open.mapquestapi.com/directions/v2/route?key=Fmjtd%7Cluur290anu%2Crl%3Do5-908a0y";
       var from = points[0];
       var to = points[points.length - 1];
@@ -89,6 +89,6 @@ function MapQuestEngine(vehicleName, vehicleParam) {
   };
 }
 
-OSM.Directions.addEngine(MapQuestEngine("Bicycle", "routeType=bicycle"), true);
-OSM.Directions.addEngine(MapQuestEngine("Foot", "routeType=pedestrian"), true);
-OSM.Directions.addEngine(MapQuestEngine("Car", "routeType=fastest"), true);
+OSM.Directions.addEngine(MapQuestEngine("mapquest_bicycle", "routeType=bicycle"), true);
+OSM.Directions.addEngine(MapQuestEngine("mapquest_foot", "routeType=pedestrian"), true);
+OSM.Directions.addEngine(MapQuestEngine("mapquest_car", "routeType=fastest"), true);
diff --git a/app/assets/javascripts/index/directions_engines/osrm.js b/app/assets/javascripts/index/directions_engines/osrm.js
index ebcbf1fb1..706970ec5 100644
--- a/app/assets/javascripts/index/directions_engines/osrm.js
+++ b/app/assets/javascripts/index/directions_engines/osrm.js
@@ -3,11 +3,11 @@
 
 function OSRMEngine() {
   return {
-    name: "javascripts.directions.engines.osrm_car",
+    id: "osrm_car",
     creditline: 'OSRM',
     draggable: true,
 
-    getRoute: function (isFinal, points, callback) {
+    getRoute: function (points, callback) {
       var TURN_INSTRUCTIONS = [
         "",
         I18n.t('javascripts.directions.instructions.continue_on'),      // 1
@@ -29,15 +29,12 @@ function OSRMEngine() {
         I18n.t('javascripts.directions.instructions.end_oneway')        // 17
       ];
 
-      var url = "http://router.project-osrm.org/viaroute?z=14&output=json";
+      var url = "http://router.project-osrm.org/viaroute?z=14&output=json&instructions=true";
 
       for (var i = 0; i < points.length; i++) {
         url += "&loc=" + points[i].lat + ',' + points[i].lng;
       }
 
-      if (isFinal)
-        url += "&instructions=true";
-
       $.ajax({
         url: url,
         dataType: 'json',
diff --git a/app/assets/javascripts/index/search.js b/app/assets/javascripts/index/search.js
index 81b96635b..7fb8edbb0 100644
--- a/app/assets/javascripts/index/search.js
+++ b/app/assets/javascripts/index/search.js
@@ -1,12 +1,30 @@
 OSM.Search = function(map) {
-  $(".search_form input[name=query]")
-    .on("input", function(e) {
-      if ($(e.target).val() == "") {
-        $(".describe_location").fadeIn(100);
-      } else {
-        $(".describe_location").fadeOut(100);
-      }
-    })
+  $(".search_form input[name=query]").on("input", function(e) {
+    if ($(e.target).val() == "") {
+      $(".describe_location").fadeIn(100);
+    } else {
+      $(".describe_location").fadeOut(100);
+    }
+  });
+
+  $(".search_form").on("submit", function(e) {
+    e.preventDefault();
+    $("header").addClass("closed");
+    var query = $(this).find("input[name=query]").val();
+    if (query) {
+      OSM.router.route("/search?query=" + encodeURIComponent(query) + OSM.formatHash(map));
+    } else {
+      OSM.router.route("/" + OSM.formatHash(map));
+    }
+  });
+
+  $(".describe_location").on("click", function(e) {
+    e.preventDefault();
+    var precision = OSM.zoomPrecision(map.getZoom());
+    OSM.router.route("/search?query=" + encodeURIComponent(
+        map.getCenter().lat.toFixed(precision) + "," +
+        map.getCenter().lng.toFixed(precision)));
+  });
 
   $("#sidebar_content")
     .on("click", ".search_more a", clickSearchMore)
diff --git a/app/assets/javascripts/leaflet.map.js.erb b/app/assets/javascripts/leaflet.map.js.erb
index 35370ae99..6f7d7754f 100644
--- a/app/assets/javascripts/leaflet.map.js.erb
+++ b/app/assets/javascripts/leaflet.map.js.erb
@@ -242,6 +242,19 @@ L.OSM.Map = L.Map.extend({
   setState: function(state, options) {
     if (state.center) this.setView(state.center, state.zoom, options);
     this.updateLayers(state.layers);
+  },
+
+  setSidebarOverlaid: function(overlaid) {
+    if (overlaid && !$("#content").hasClass("overlay-sidebar")) {
+      $("#content").addClass("overlay-sidebar");
+      this.invalidateSize({pan: false})
+        .panBy([-350, 0], {animate: false});
+    } else if (!overlaid && $("#content").hasClass("overlay-sidebar")) {
+      this.panBy([350, 0], {animate: false});
+      $("#content").removeClass("overlay-sidebar");
+      this.invalidateSize({pan: false});
+    }
+    return this;
   }
 });
 
diff --git a/app/assets/javascripts/router.js b/app/assets/javascripts/router.js
index 05e47c356..a05ed5a9d 100644
--- a/app/assets/javascripts/router.js
+++ b/app/assets/javascripts/router.js
@@ -121,6 +121,10 @@ OSM.Router = function(map, rts) {
       return true;
     };
 
+    router.replace = function (url) {
+      window.history.replaceState(OSM.parseHash(url), document.title, url);
+    };
+
     router.stateChange = function(state) {
       if (state.center) {
         window.history.replaceState(state, document.title, OSM.formatHash(state));
@@ -129,7 +133,7 @@ OSM.Router = function(map, rts) {
       }
     };
   } else {
-    router.route = function (url) {
+    router.route = router.replace = function (url) {
       window.location.assign(url);
     };
 
@@ -174,9 +178,6 @@ OSM.Router = function(map, rts) {
 
   map.on('moveend baselayerchange overlaylayerchange', router.updateHash);
   $(window).on('hashchange', router.hashUpdated);
-  $(window).on('unload', function(e) {
-      $(".query_wrapper.routing input").val("");
-  });
 
   return router;
 };
diff --git a/app/assets/stylesheets/common.css.scss b/app/assets/stylesheets/common.css.scss
index 5a26d12f3..b552ce850 100644
--- a/app/assets/stylesheets/common.css.scss
+++ b/app/assets/stylesheets/common.css.scss
@@ -903,13 +903,15 @@ nav.secondary {
   }
 }
 
-/* Rules for the search box */
+/* Rules for the search and direction forms */
 
-header .search_form {
+header .search_forms,
+.directions_form {
   display: none;
 }
 
-.search_form {
+.search_form,
+.directions_form {
   position: relative;
   padding: $lineheight/2;
   padding-top: 1px;
@@ -948,10 +950,6 @@ header .search_form {
     font-size: 10px;
     color: $blue;
   }
-
-  .routing {
-    display: none;
-  }
 }
 
 /* Rules for the map key which appears in the popout sidebar */
@@ -1005,7 +1003,7 @@ td.direction {
 td.direction.i#{$i}  { background-position: #{($i)*-20+20}px 0px; }
 }
 
-.routing_submit {
+.directions_form input[type="submit"] {
     margin-top: 30px !important;
 }
 
diff --git a/app/assets/stylesheets/small.css.scss b/app/assets/stylesheets/small.css.scss
index e9d0a4779..950e1214d 100644
--- a/app/assets/stylesheets/small.css.scss
+++ b/app/assets/stylesheets/small.css.scss
@@ -36,12 +36,12 @@ header {
     display: none;
   }
 
-  .search_form {
+  .search_forms {
     display: block;
   }
 }
 
-#sidebar .search_form,
+#sidebar .search_forms,
 #edit_tab,
 #export_tab {
   display: none;
diff --git a/app/controllers/directions_controller.rb b/app/controllers/directions_controller.rb
new file mode 100644
index 000000000..d153f0320
--- /dev/null
+++ b/app/controllers/directions_controller.rb
@@ -0,0 +1,9 @@
+class DirectionsController < ApplicationController
+  before_filter :authorize_web
+  before_filter :set_locale
+  before_filter :require_oauth, :only => [:search]
+
+  def search
+    render :layout => map_layout
+  end
+end
diff --git a/app/views/directions/search.html.erb b/app/views/directions/search.html.erb
new file mode 100644
index 000000000..ea6ee7088
--- /dev/null
+++ b/app/views/directions/search.html.erb
@@ -0,0 +1 @@
+<% content_for(:content_class) { "overlay-sidebar" } %>
diff --git a/app/views/layouts/_search.html.erb b/app/views/layouts/_search.html.erb
index 43613352e..6e1aa5dc2 100644
--- a/app/views/layouts/_search.html.erb
+++ b/app/views/layouts/_search.html.erb
@@ -1,28 +1,32 @@
-
',
     draggable: false,
 
-    getRoute: function (isFinal, points, callback) {
+    getRoute: function (points, callback) {
       var url = document.location.protocol + "//open.mapquestapi.com/directions/v2/route?key=Fmjtd%7Cluur290anu%2Crl%3Do5-908a0y";
       var from = points[0];
       var to = points[points.length - 1];
@@ -89,6 +89,6 @@ function MapQuestEngine(vehicleName, vehicleParam) {
   };
 }
 
-OSM.Directions.addEngine(MapQuestEngine("Bicycle", "routeType=bicycle"), true);
-OSM.Directions.addEngine(MapQuestEngine("Foot", "routeType=pedestrian"), true);
-OSM.Directions.addEngine(MapQuestEngine("Car", "routeType=fastest"), true);
+OSM.Directions.addEngine(MapQuestEngine("mapquest_bicycle", "routeType=bicycle"), true);
+OSM.Directions.addEngine(MapQuestEngine("mapquest_foot", "routeType=pedestrian"), true);
+OSM.Directions.addEngine(MapQuestEngine("mapquest_car", "routeType=fastest"), true);
diff --git a/app/assets/javascripts/index/directions_engines/osrm.js b/app/assets/javascripts/index/directions_engines/osrm.js
index ebcbf1fb1..706970ec5 100644
--- a/app/assets/javascripts/index/directions_engines/osrm.js
+++ b/app/assets/javascripts/index/directions_engines/osrm.js
@@ -3,11 +3,11 @@
 
 function OSRMEngine() {
   return {
-    name: "javascripts.directions.engines.osrm_car",
+    id: "osrm_car",
     creditline: 'OSRM',
     draggable: true,
 
-    getRoute: function (isFinal, points, callback) {
+    getRoute: function (points, callback) {
       var TURN_INSTRUCTIONS = [
         "",
         I18n.t('javascripts.directions.instructions.continue_on'),      // 1
@@ -29,15 +29,12 @@ function OSRMEngine() {
         I18n.t('javascripts.directions.instructions.end_oneway')        // 17
       ];
 
-      var url = "http://router.project-osrm.org/viaroute?z=14&output=json";
+      var url = "http://router.project-osrm.org/viaroute?z=14&output=json&instructions=true";
 
       for (var i = 0; i < points.length; i++) {
         url += "&loc=" + points[i].lat + ',' + points[i].lng;
       }
 
-      if (isFinal)
-        url += "&instructions=true";
-
       $.ajax({
         url: url,
         dataType: 'json',
diff --git a/app/assets/javascripts/index/search.js b/app/assets/javascripts/index/search.js
index 81b96635b..7fb8edbb0 100644
--- a/app/assets/javascripts/index/search.js
+++ b/app/assets/javascripts/index/search.js
@@ -1,12 +1,30 @@
 OSM.Search = function(map) {
-  $(".search_form input[name=query]")
-    .on("input", function(e) {
-      if ($(e.target).val() == "") {
-        $(".describe_location").fadeIn(100);
-      } else {
-        $(".describe_location").fadeOut(100);
-      }
-    })
+  $(".search_form input[name=query]").on("input", function(e) {
+    if ($(e.target).val() == "") {
+      $(".describe_location").fadeIn(100);
+    } else {
+      $(".describe_location").fadeOut(100);
+    }
+  });
+
+  $(".search_form").on("submit", function(e) {
+    e.preventDefault();
+    $("header").addClass("closed");
+    var query = $(this).find("input[name=query]").val();
+    if (query) {
+      OSM.router.route("/search?query=" + encodeURIComponent(query) + OSM.formatHash(map));
+    } else {
+      OSM.router.route("/" + OSM.formatHash(map));
+    }
+  });
+
+  $(".describe_location").on("click", function(e) {
+    e.preventDefault();
+    var precision = OSM.zoomPrecision(map.getZoom());
+    OSM.router.route("/search?query=" + encodeURIComponent(
+        map.getCenter().lat.toFixed(precision) + "," +
+        map.getCenter().lng.toFixed(precision)));
+  });
 
   $("#sidebar_content")
     .on("click", ".search_more a", clickSearchMore)
diff --git a/app/assets/javascripts/leaflet.map.js.erb b/app/assets/javascripts/leaflet.map.js.erb
index 35370ae99..6f7d7754f 100644
--- a/app/assets/javascripts/leaflet.map.js.erb
+++ b/app/assets/javascripts/leaflet.map.js.erb
@@ -242,6 +242,19 @@ L.OSM.Map = L.Map.extend({
   setState: function(state, options) {
     if (state.center) this.setView(state.center, state.zoom, options);
     this.updateLayers(state.layers);
+  },
+
+  setSidebarOverlaid: function(overlaid) {
+    if (overlaid && !$("#content").hasClass("overlay-sidebar")) {
+      $("#content").addClass("overlay-sidebar");
+      this.invalidateSize({pan: false})
+        .panBy([-350, 0], {animate: false});
+    } else if (!overlaid && $("#content").hasClass("overlay-sidebar")) {
+      this.panBy([350, 0], {animate: false});
+      $("#content").removeClass("overlay-sidebar");
+      this.invalidateSize({pan: false});
+    }
+    return this;
   }
 });
 
diff --git a/app/assets/javascripts/router.js b/app/assets/javascripts/router.js
index 05e47c356..a05ed5a9d 100644
--- a/app/assets/javascripts/router.js
+++ b/app/assets/javascripts/router.js
@@ -121,6 +121,10 @@ OSM.Router = function(map, rts) {
       return true;
     };
 
+    router.replace = function (url) {
+      window.history.replaceState(OSM.parseHash(url), document.title, url);
+    };
+
     router.stateChange = function(state) {
       if (state.center) {
         window.history.replaceState(state, document.title, OSM.formatHash(state));
@@ -129,7 +133,7 @@ OSM.Router = function(map, rts) {
       }
     };
   } else {
-    router.route = function (url) {
+    router.route = router.replace = function (url) {
       window.location.assign(url);
     };
 
@@ -174,9 +178,6 @@ OSM.Router = function(map, rts) {
 
   map.on('moveend baselayerchange overlaylayerchange', router.updateHash);
   $(window).on('hashchange', router.hashUpdated);
-  $(window).on('unload', function(e) {
-      $(".query_wrapper.routing input").val("");
-  });
 
   return router;
 };
diff --git a/app/assets/stylesheets/common.css.scss b/app/assets/stylesheets/common.css.scss
index 5a26d12f3..b552ce850 100644
--- a/app/assets/stylesheets/common.css.scss
+++ b/app/assets/stylesheets/common.css.scss
@@ -903,13 +903,15 @@ nav.secondary {
   }
 }
 
-/* Rules for the search box */
+/* Rules for the search and direction forms */
 
-header .search_form {
+header .search_forms,
+.directions_form {
   display: none;
 }
 
-.search_form {
+.search_form,
+.directions_form {
   position: relative;
   padding: $lineheight/2;
   padding-top: 1px;
@@ -948,10 +950,6 @@ header .search_form {
     font-size: 10px;
     color: $blue;
   }
-
-  .routing {
-    display: none;
-  }
 }
 
 /* Rules for the map key which appears in the popout sidebar */
@@ -1005,7 +1003,7 @@ td.direction {
 td.direction.i#{$i}  { background-position: #{($i)*-20+20}px 0px; }
 }
 
-.routing_submit {
+.directions_form input[type="submit"] {
     margin-top: 30px !important;
 }
 
diff --git a/app/assets/stylesheets/small.css.scss b/app/assets/stylesheets/small.css.scss
index e9d0a4779..950e1214d 100644
--- a/app/assets/stylesheets/small.css.scss
+++ b/app/assets/stylesheets/small.css.scss
@@ -36,12 +36,12 @@ header {
     display: none;
   }
 
-  .search_form {
+  .search_forms {
     display: block;
   }
 }
 
-#sidebar .search_form,
+#sidebar .search_forms,
 #edit_tab,
 #export_tab {
   display: none;
diff --git a/app/controllers/directions_controller.rb b/app/controllers/directions_controller.rb
new file mode 100644
index 000000000..d153f0320
--- /dev/null
+++ b/app/controllers/directions_controller.rb
@@ -0,0 +1,9 @@
+class DirectionsController < ApplicationController
+  before_filter :authorize_web
+  before_filter :set_locale
+  before_filter :require_oauth, :only => [:search]
+
+  def search
+    render :layout => map_layout
+  end
+end
diff --git a/app/views/directions/search.html.erb b/app/views/directions/search.html.erb
new file mode 100644
index 000000000..ea6ee7088
--- /dev/null
+++ b/app/views/directions/search.html.erb
@@ -0,0 +1 @@
+<% content_for(:content_class) { "overlay-sidebar" } %>
diff --git a/app/views/layouts/_search.html.erb b/app/views/layouts/_search.html.erb
index 43613352e..6e1aa5dc2 100644
--- a/app/views/layouts/_search.html.erb
+++ b/app/views/layouts/_search.html.erb
@@ -1,28 +1,32 @@
-