Merge pull request #26 from karussell/patch-2

[rails.git] / app / assets / javascripts / index / directions_engines / graphhopper.js

diff --git a/app/assets/javascripts/index/directions_engines/graphhopper.js b/app/assets/javascripts/index/directions_engines/graphhopper.js
index 9f9c549b5ff17934c4d3c4367faa4355fe3bd574..8d01bcd169dd06c691faf849f9d3e2ab1aab260a 100644 (file)
--- a/app/assets/javascripts/index/directions_engines/graphhopper.js
+++ b/app/assets/javascripts/index/directions_engines/graphhopper.js
@@ -1,81 +1,74 @@
-GraphHopperEngine = function (vehicleName, vehicleParam, locale) {
-  this.vehicleName = vehicleName;
-  this.vehicleParam = vehicleParam;
-  //At this point the local system isn't correctly initialised yet, so we don't have accurate information about current locale
-  this.locale = locale;
-  if (!locale)
-    this.locale = "en";
-};
+function GraphHopperEngine(id, vehicleParam) {
+  var GH_INSTR_MAP = {
+    "-3": 6, // sharp left
+    "-2": 7, // left
+    "-1": 8, // slight left
+    0: 0, // straight
+    1: 1, // slight right
+    2: 2, // right
+    3: 3, // sharp right
+    4: -1, // finish reached
+    5: -1 // via reached
+  };
 
-GraphHopperEngine.prototype.createConfig = function () {
-  var that = this;
   return {
-    name: "javascripts.directions.engines.graphhopper_" + this.vehicleName.toLowerCase(),
-    creditline: '<a href="http://graphhopper.com/" target="_blank">Graphhopper</a>',
+    id: id,
+    creditline: '<a href="https://graphhopper.com/" target="_blank">Graphhopper</a>',
     draggable: false,
-    _hints: {},
 
-    getRoute: function (isFinal, points) {
+    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?"
-        + that.vehicleParam
+      var url = "https://graphhopper.com/api/1/route?"
+        + vehicleParam
         + "&locale=" + I18n.currentLocale()
-        + "&key=LijBPDQGfu7Iiq80w3HzwB4RUDJbMbhs6BU0dEnn";
+        + "&key=LijBPDQGfu7Iiq80w3HzwB4RUDJbMbhs6BU0dEnn"
+        + "&type=jsonp"
+        + "&instructions=true";
 
       for (var i = 0; i < points.length; i++) {
-        var pair = points[i].join(',');
-        url += "&point=" + pair;
+        url += "&point=" + points[i].lat + ',' + points[i].lng;
       }
-      if (isFinal)
-        url += "&instructions=true";
-      // GraphHopper supports json too
-      this.requestJSONP(url + "&type=jsonp&callback=");
-    },
 
-    gotRoute: function (router, data) {
-      if (!data.paths || data.paths.length == 0)
-        return false;
+      $.ajax({
+        url: url,
+        dataType: 'jsonp',
+        success: function (data) {
+          if (!data.paths || data.paths.length == 0)
+            return callback(true);
 
-      // Draw polyline
-      var path = data.paths[0];
-      var line = L.PolylineUtil.decode(path.points);
-      router.setPolyline(line);
-      // Assemble instructions
-      var steps = [];
-      var len = path.instructions.length;
-      for (i = 0; i < len; i++) {
-        var instr = path.instructions[i];
-        var instrCode = (i === len - 1) ? 15 : this.GH_INSTR_MAP[instr.sign];
-        var instrText = "<b>" + (i + 1) + ".</b> ";
-        instrText += instr.text;
-        var latLng = line[instr.interval[0]];
-        var distInMeter = instr.distance;
-        steps.push([
-          {lat: latLng.lat, lng: latLng.lng},
-          instrCode,
-          instrText,
-          distInMeter,
-          []
-        ]); // TODO does graphhopper map instructions onto line indices?
-      }
-      router.setItinerary({ steps: steps, distance: path.distance, time: path.time / 1000 });
-      return true;
-    },
+          var path = data.paths[0];
+          var line = L.PolylineUtil.decode(path.points);
+
+          var steps = [];
+          var len = path.instructions.length;
+          for (var i = 0; i < len; i++) {
+            var instr = path.instructions[i];
+            var instrCode = (i === len - 1) ? 15 : GH_INSTR_MAP[instr.sign];
+            var instrText = "<b>" + (i + 1) + ".</b> ";
+            instrText += instr.text;
+            var latLng = line[instr.interval[0]];
+            var distInMeter = instr.distance;
+            steps.push([
+              {lat: latLng.lat, lng: latLng.lng},
+              instrCode,
+              instrText,
+              distInMeter,
+              []
+            ]); // TODO does graphhopper map instructions onto line indices?
+          }
 
-    GH_INSTR_MAP: {
-      "-3": 6, // sharp left
-      "-2": 7, // left
-      "-1": 8, // slight left
-      0: 0, // straight
-      1: 1, // slight right
-      2: 2, // right
-      3: 3, // sharp right
-      4: -1, // finish reached
-      5: -1 // via reached
+          callback(null, {
+            line: line,
+            steps: steps,
+            distance: path.distance,
+            time: path.time / 1000
+          });
+        }
+      });
     }
   };
-};
+}
 
-OSM.DirectionsEngines.add(false, new GraphHopperEngine("Bicycle", "vehicle=bike").createConfig());
-OSM.DirectionsEngines.add(false, new GraphHopperEngine("Foot", "vehicle=foot").createConfig());
+OSM.Directions.addEngine(GraphHopperEngine("graphhopper_bicycle", "vehicle=bike"), false);
+OSM.Directions.addEngine(GraphHopperEngine("graphhopper_foot", "vehicle=foot"), false);