Make overpass server URL configurable

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

diff --git a/app/assets/javascripts/index/query.js b/app/assets/javascripts/index/query.js
index 6b64ee8ee1d74bc214b03c628d5d999eb6a46f73..bc4c26771913e6f4fbb855fc3b7064400b0f0482 100644 (file)
--- a/app/assets/javascripts/index/query.js
+++ b/app/assets/javascripts/index/query.js
@@ -3,13 +3,22 @@
 OSM.Query = function(map) {
   var queryButton = $(".control-query .control-button"),
     uninterestingTags = ['source', 'source_ref', 'source:ref', 'history', 'attribution', 'created_by', 'tiger:county', 'tiger:tlid', 'tiger:upload_uuid'],
-    searchRadius = 10,
     marker;
 
+  var featureStyle = {
+    color: "#FF6200",
+    weight: 4,
+    opacity: 1,
+    fillOpacity: 0.5,
+    clickable: false
+  };
+
   queryButton.on("click", function (e) {
     e.preventDefault();
     e.stopPropagation();
 
+    if (queryButton.hasClass("disabled")) return;
+
     if (queryButton.hasClass("active")) {
       disableQueryMode();
 
@@ -17,29 +26,41 @@ OSM.Query = function(map) {
     } else {
       enableQueryMode();
     }
+  }).on("disabled", function (e) {
+    if (queryButton.hasClass("active")) {
+      map.off("click", clickHandler);
+      $(map.getContainer()).removeClass("query-active").addClass("query-disabled");
+      $(this).tooltip("show");
+    }
+  }).on("enabled", function (e) {
+    if (queryButton.hasClass("active")) {
+      map.on("click", clickHandler);
+      $(map.getContainer()).removeClass("query-disabled").addClass("query-active");
+      $(this).tooltip("hide");
+    }
   });
 
   $("#sidebar_content")
-    .on("mouseover", ".query-results li", function () {
+    .on("mouseover", ".query-results li.query-result", function () {
       var geometry = $(this).data("geometry")
       if (geometry) map.addLayer(geometry);
       $(this).addClass("selected");
     })
-    .on("mouseout", ".query-results li", function () {
+    .on("mouseout", ".query-results li.query-result", function () {
       var geometry = $(this).data("geometry")
       if (geometry) map.removeLayer(geometry);
       $(this).removeClass("selected");
     })
-    .on("click", ".query-results li", function (e) {
+    .on("click", ".query-results li.query-result", function (e) {
       if (!$(e.target).is('a')) {
         $(this).find("a").simulate("click", e);
       }
     });
 
-  function interestingFeature(feature, origin) {
+  function interestingFeature(feature, origin, radius) {
     if (feature.tags) {
       if (feature.type === "node" &&
-          OSM.distance(origin, L.latLng(feature.lat, feature.lon)) > searchRadius) {
+          OSM.distance(origin, L.latLng(feature.lat, feature.lon)) > radius) {
         return false;
       }
 
@@ -92,6 +113,8 @@ OSM.Query = function(map) {
       return tags["name"];
     } else if (tags["ref"]) {
       return tags["ref"];
+    } else if (tags["addr:housename"]) {
+      return tags["addr:housename"];
     } else if (tags["addr:housenumber"] && tags["addr:street"]) {
       return tags["addr:housenumber"] + " " + tags["addr:street"];
     } else {
@@ -117,21 +140,33 @@ OSM.Query = function(map) {
     }
   }
 
-  function featureGeometry(feature, nodes) {
+  function featureGeometry(feature, features) {
     var geometry;
 
     if (feature.type === "node") {
-      geometry = L.circleMarker([feature.lat, feature.lon]);
+      geometry = L.circleMarker([feature.lat, feature.lon], featureStyle);
     } else if (feature.type === "way") {
       geometry = L.polyline(feature.nodes.map(function (node) {
-        return nodes[node];
-      }));
+        return features["node" + node].getLatLng();
+      }), featureStyle);
+    } else if (feature.type === "relation") {
+      geometry = L.featureGroup();
+
+      feature.members.forEach(function (member) {
+        if (features[member.type + member.ref]) {
+          geometry.addLayer(features[member.type + member.ref]);
+        }
+      });
+    }
+
+    if (geometry) {
+      features[feature.type + feature.id] = geometry;
     }
 
     return geometry;
   }
 
-  function runQuery(latlng, query, $section) {
+  function runQuery(latlng, radius, query, $section) {
     var $ul = $section.find("ul");
 
     $ul.empty();
@@ -142,28 +177,24 @@ OSM.Query = function(map) {
     });
 
     $.ajax({
-      url: "http://overpass-api.de/api/interpreter",
-      method: "GET",
+      url: OSM.OVERPASS_URL,
+      method: "POST",
       data: {
         data: "[timeout:5][out:json];" + query,
       },
       success: function(results) {
-        var nodes = {};
+        var features = {};
 
         $section.find(".loader").stopTime("loading").hide();
 
-        results.elements.forEach(function (element) {
-          if (element.type === "node") {
-            nodes[element.id] = [element.lat, element.lon];
-          }
-        });
-
         for (var i = 0; i < results.elements.length; i++) {
-          var element = results.elements[i];
+          var element = results.elements[i],
+            geometry = featureGeometry(element, features);
 
-          if (interestingFeature(element, latlng)) {
+          if (interestingFeature(element, latlng, radius)) {
             var $li = $("<li>")
-              .data("geometry", featureGeometry(element, nodes))
+              .addClass("query-result")
+              .data("geometry", geometry)
               .appendTo($ul);
             var $p = $("<p>")
               .text(featurePrefix(element) + " ")
@@ -175,13 +206,20 @@ OSM.Query = function(map) {
               .appendTo($p);
           }
         }
+
+        if ($ul.find("li").length == 0) {
+          $("<li>")
+            .text(I18n.t("javascripts.query.nothing_found"))
+            .appendTo($ul);
+        }
       }
     });
   }
 
   function queryOverpass(lat, lng) {
     var latlng = L.latLng(lat, lng),
-      around = "around:" + searchRadius + "," + lat + "," + lng,
+      radius = 10 * Math.pow(1.5, 19 - map.getZoom()),
+      around = "around:" + radius + "," + lat + "," + lng,
       features = "(node(" + around + ");way(" + around + ");relation(" + around + "))",
       nearby = "((" + features + ";way(bn));node(w));out;",
       isin = "(is_in(" + lat + "," + lng + ");>);out;";
@@ -189,25 +227,22 @@ OSM.Query = function(map) {
     $("#sidebar_content .query-intro")
       .hide();
 
-    if (marker) {
-      marker.setLatLng(latlng).addTo(map);
-    } else {
-      marker = L.circle(latlng, searchRadius, { clickable: false }).addTo(map);
-    }
+    if (marker) map.removeLayer(marker);
+    marker = L.circle(latlng, radius, featureStyle).addTo(map);
 
     $(document).everyTime(75, "fadeQueryMarker", function (i) {
       if (i == 10) {
         map.removeLayer(marker);
       } else {
         marker.setStyle({
-          opacity: 0.5 - i * 0.05,
-          fillOpacity: 0.2 - i * 0.02
+          opacity: 1 - i * 0.1,
+          fillOpacity: 0.5 - i * 0.05
         });
       }
     }, 10);
 
-    runQuery(latlng, nearby, $("#query-nearby"));
-    runQuery(latlng, isin, $("#query-isin"));
+    runQuery(latlng, radius, nearby, $("#query-nearby"));
+    runQuery(latlng, radius, isin, $("#query-isin"));
   }
 
   function clickHandler(e) {
@@ -226,7 +261,7 @@ OSM.Query = function(map) {
 
   function disableQueryMode() {
     if (marker) map.removeLayer(marker);
-    $(map.getContainer()).removeClass("query-active");
+    $(map.getContainer()).removeClass("query-active").removeClass("query-disabled");
     map.off("click", clickHandler);
     queryButton.removeClass("active");
   }