Limit coordinate precision in drag listener

[rails.git] / app / assets / javascripts / index / directions.js

diff --git a/app/assets/javascripts/index/directions.js b/app/assets/javascripts/index/directions.js
index ccd4a68c253ada6b537f063f465b9fb61f2e7a18..391c1f9315c7fe945d822d49380f9578729e79c0 100644 (file)
--- a/app/assets/javascripts/index/directions.js
+++ b/app/assets/javascripts/index/directions.js
@@ -28,13 +28,13 @@ OSM.Directions = function (map) {
 
     getRoute(false, !dragging);
   };
-  var endpointGeocodeCallback = function () {
+  var endpointChangeCallback = function () {
     getRoute(true, true);
   };
 
   var endpoints = [
-    OSM.DirectionsEndpoint(map, $("input[name='route_from']"), OSM.MARKER_GREEN, endpointDragCallback, endpointGeocodeCallback),
-    OSM.DirectionsEndpoint(map, $("input[name='route_to']"), OSM.MARKER_RED, endpointDragCallback, endpointGeocodeCallback)
+    OSM.DirectionsEndpoint(map, $("input[name='route_from']"), OSM.MARKER_GREEN, endpointDragCallback, endpointChangeCallback),
+    OSM.DirectionsEndpoint(map, $("input[name='route_to']"), OSM.MARKER_RED, endpointDragCallback, endpointChangeCallback)
   ];
 
   var expiry = new Date();
@@ -75,12 +75,9 @@ OSM.Directions = function (map) {
 
   $(".directions_form .btn-close").on("click", function (e) {
     e.preventDefault();
-    var route_from = endpoints[0].value;
-    if (route_from) {
-      OSM.router.route("/?query=" + encodeURIComponent(route_from) + OSM.formatHash(map));
-    } else {
-      OSM.router.route("/" + OSM.formatHash(map));
-    }
+    $(".describe_location").toggle(!endpoints[0].value);
+    $(".search_form input[name='query']").val(endpoints[0].value);
+    OSM.router.route("/" + OSM.formatHash(map));
   });
 
   function formatDistance(m) {
@@ -119,18 +116,6 @@ OSM.Directions = function (map) {
     // Cancel any route that is already in progress
     if (routeRequest) routeRequest.abort();
 
-    // go fetch geocodes for any endpoints which have not already
-    // been geocoded.
-    for (var ep_i = 0; ep_i < 2; ++ep_i) {
-      var endpoint = endpoints[ep_i];
-      if (!endpoint.hasGeocode && !endpoint.awaitingGeocode) {
-        endpoint.getGeocode();
-      }
-    }
-    if (endpoints[0].awaitingGeocode || endpoints[1].awaitingGeocode) {
-      return;
-    }
-
     var o = endpoints[0].latlng,
         d = endpoints[1].latlng;
 
@@ -300,10 +285,15 @@ OSM.Directions = function (map) {
       var pt = L.DomEvent.getMousePosition(oe, map.getContainer()); // co-ordinates of the mouse pointer at present
       pt.y += 20;
       var ll = map.containerPointToLatLng(pt);
-      endpoints[type === "from" ? 0 : 1].setLatLng(ll);
-      getRoute(true, true);
+      var precision = OSM.zoomPrecision(map.getZoom());
+      var value = ll.lat.toFixed(precision) + ", " + ll.lng.toFixed(precision);
+      var llWithPrecision = L.latLng(ll.lat.toFixed(precision), ll.lng.toFixed(precision));
+      endpoints[type === "from" ? 0 : 1].setValue(value, llWithPrecision);
     });
 
+    endpoints[0].enable();
+    endpoints[1].enable();
+
     var params = Qs.parse(location.search.substring(1)),
         route = (params.route || "").split(";"),
         from = route[0] && L.latLng(route[0].split(",")),
@@ -321,8 +311,6 @@ OSM.Directions = function (map) {
     endpoints[1].setValue(params.to || "", to);
 
     map.setSidebarOverlaid(!from || !to);
-
-    getRoute(true, true);
   };
 
   page.load = function () {
@@ -334,11 +322,12 @@ OSM.Directions = function (map) {
     $(".directions_form").hide();
     $("#map").off("dragend dragover drop");
 
+    endpoints[0].disable();
+    endpoints[1].disable();
+
     map
       .removeLayer(popup)
-      .removeLayer(polyline)
-      .removeLayer(endpoints[0].marker)
-      .removeLayer(endpoints[1].marker);
+      .removeLayer(polyline);
   };
 
   return page;