Show OSM objects for Nominatim search results as map overlays

[rails.git] / app / assets / javascripts / map.js.erb

diff --git a/app/assets/javascripts/map.js.erb b/app/assets/javascripts/map.js.erb
index a18292aaaad74083a26c119d1a206605b2dfb64a..9900935701f6511155ad78c322538e087a357255 100644 (file)
--- a/app/assets/javascripts/map.js.erb
+++ b/app/assets/javascripts/map.js.erb
@@ -29,6 +29,10 @@ L.extend(L.LatLngBounds.prototype, {
   getSize: function () {
     return (this._northEast.lat - this._southWest.lat) *
            (this._northEast.lng - this._southWest.lng);
+  },
+
+  wrap: function () {
+    return new L.LatLngBounds(this._southWest.wrap(), this._northEast.wrap());
   }
 });
 
@@ -45,6 +49,7 @@ L.extend(L.Bounds.prototype, {
 L.Icon.Default.imagePath = <%= "#{asset_prefix}/images".to_json %>;
 
 var map;
+var objectLayer;
 
 var layers = [
   {
@@ -124,11 +129,15 @@ function getUserIcon(url) {
 }
 
 function addObjectToMap(object, zoom, callback) {
+  if (objectLayer) {
+    map.removeLayer(objectLayer);
+  }
+
   $.ajax({
     url: OSM.apiUrl(object),
     dataType: "xml",
     success: function (xml) {
-      var layer = new L.OSM.DataLayer(xml, {
+      objectLayer = new L.OSM.DataLayer(xml, {
         style: {
           strokeColor: "blue",
           strokeWidth: 3,
@@ -139,7 +148,7 @@ function addObjectToMap(object, zoom, callback) {
         }
       });
 
-      var bounds = layer.getBounds();
+      var bounds = objectLayer.getBounds();
 
       if (zoom) {
         map.fitBounds(bounds);
@@ -149,7 +158,7 @@ function addObjectToMap(object, zoom, callback) {
         callback(bounds);
       }
 
-      layer.addTo(map);
+      objectLayer.addTo(map);
     }
   });
 }