--- /dev/null
+//= require jquery.simulate
+
+OSM.Query = function(map) {
+ var protocol = document.location.protocol === "https:" ? "https:" : "http:",
+ url = protocol + OSM.OVERPASS_URL,
+ queryButton = $(".control-query .control-button"),
+ uninterestingTags = ['source', 'source_ref', 'source:ref', 'history', 'attribution', 'created_by', 'tiger:county', 'tiger:tlid', 'tiger:upload_uuid'],
+ marker;
+
+ var featureStyle = {
+ color: "#FF6200",
+ weight: 4,
+ opacity: 1,
+ fillOpacity: 0.5,
+ clickable: false
+ };
+
+ queryButton.on("click", function (e) {
+ e.preventDefault();
+ e.stopPropagation();
+
+ if (queryButton.hasClass("disabled")) return;
+
+ if (queryButton.hasClass("active")) {
+ if ($("#content").hasClass("overlay-sidebar")) {
+ disableQueryMode();
+ }
+ } 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.query-result", function () {
+ var geometry = $(this).data("geometry")
+ if (geometry) map.addLayer(geometry);
+ $(this).addClass("selected");
+ })
+ .on("mouseout", ".query-results li.query-result", function () {
+ var geometry = $(this).data("geometry")
+ if (geometry) map.removeLayer(geometry);
+ $(this).removeClass("selected");
+ })
+ .on("mousedown", ".query-results li.query-result", function (e) {
+ var moved = false;
+ $(this).one("click", function (e) {
+ if (!moved) {
+ var geometry = $(this).data("geometry")
+ if (geometry) map.removeLayer(geometry);
+
+ if (!$(e.target).is('a')) {
+ $(this).find("a").simulate("click", e);
+ }
+ }
+ }).one("mousemove", function () {
+ moved = true;
+ });
+ });
+
+ function interestingFeature(feature, origin, radius) {
+ if (feature.tags) {
+ if (feature.type === "node" &&
+ OSM.distance(origin, L.latLng(feature.lat, feature.lon)) > radius) {
+ return false;
+ }
+
+ for (var key in feature.tags) {
+ if (uninterestingTags.indexOf(key) < 0) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ function featurePrefix(feature) {
+ var tags = feature.tags;
+ var prefix = "";
+
+ if (tags.boundary === "administrative") {
+ prefix = I18n.t("geocoder.search_osm_nominatim.admin_levels.level" + tags.admin_level)
+ } else {
+ var prefixes = I18n.t("geocoder.search_osm_nominatim.prefix");
+
+ for (var key in tags) {
+ var value = tags[key];
+
+ if (prefixes[key]) {
+ if (prefixes[key][value]) {
+ return prefixes[key][value];
+ } else {
+ var first = value.substr(0, 1).toUpperCase(),
+ rest = value.substr(1).replace(/_/g, " ");
+
+ return first + rest;
+ }
+ }
+ }
+ }
+
+ if (!prefix) {
+ prefix = I18n.t("javascripts.query." + feature.type);
+ }
+
+ return prefix;
+ }
+
+ function featureName(feature) {
+ var tags = feature.tags;
+
+ if (tags["name"]) {
+ 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 {
+ return "#" + feature.id;
+ }
+ }
+
+ function featureGeometry(feature, features) {
+ var geometry;
+
+ if (feature.type === "node") {
+ geometry = L.circleMarker([feature.lat, feature.lon], featureStyle);
+ } else if (feature.type === "way") {
+ geometry = L.polyline(feature.nodes.map(function (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, radius, query, $section) {
+ var $ul = $section.find("ul");
+
+ $ul.empty();
+ $section.show();
+
+ $section.find(".loader").oneTime(1000, "loading", function () {
+ $(this).show();
+ });
+
+ if ($section.data("ajax")) {
+ $section.data("ajax").abort();
+ }
+
+ $section.data("ajax", $.ajax({
+ url: url,
+ method: "POST",
+ data: {
+ data: "[timeout:5][out:json];" + query,
+ },
+ success: function(results) {
+ var features = {};
+
+ $section.find(".loader").stopTime("loading").hide();
+
+ for (var i = 0; i < results.elements.length; i++) {
+ var element = results.elements[i],
+ geometry = featureGeometry(element, features);
+
+ if (interestingFeature(element, latlng, radius)) {
+ var $li = $("<li>")
+ .addClass("query-result")
+ .data("geometry", geometry)
+ .appendTo($ul);
+ var $p = $("<p>")
+ .text(featurePrefix(element) + " ")
+ .appendTo($li);
+
+ $("<a>")
+ .attr("href", "/" + element.type + "/" + element.id)
+ .text(featureName(element))
+ .appendTo($p);
+ }
+ }
+
+ if ($ul.find("li").length == 0) {
+ $("<li>")
+ .text(I18n.t("javascripts.query.nothing_found"))
+ .appendTo($ul);
+ }
+ },
+ error: function(xhr, status, error) {
+ $section.find(".loader").stopTime("loading").hide();
+
+ $("<li>")
+ .text(I18n.t("javascripts.query." + status, { server: url, error: error }))
+ .appendTo($ul);
+ }
+ }));
+ }
+
+ /*
+ * To find nearby objects we ask overpass for the union of the
+ * following sets:
+ *
+ * node(around:<radius>,<lat>,lng>)
+ * way(around:<radius>,<lat>,lng>)
+ * node(w)
+ * relation(around:<radius>,<lat>,lng>)
+ *
+ * to find enclosing objects we first find all the enclosing areas:
+ *
+ * is_in(<lat>,<lng>)->.a
+ *
+ * and then return the union of the following sets:
+ *
+ * relation(pivot.a)
+ * way(pivot.a)
+ * node(w)
+ *
+ * In order to avoid overly large responses we don't currently
+ * attempt to complete any relations and instead just show those
+ * ways and nodes which are returned for other reasons.
+ */
+ function queryOverpass(lat, lng) {
+ var latlng = L.latLng(lat, lng),
+ radius = 10 * Math.pow(1.5, 19 - map.getZoom()),
+ around = "around:" + radius + "," + lat + "," + lng,
+ nodes = "node(" + around + ")",
+ ways = "way(" + around + ");node(w)",
+ relations = "relation(" + around + ")",
+ nearby = "(" + nodes + ";" + ways + ";" + relations + ");out;",
+ isin = "is_in(" + lat + "," + lng + ")->.a;(relation(pivot.a);way(pivot.a);node(w));out;";
+
+ $("#sidebar_content .query-intro")
+ .hide();
+
+ 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: 1 - i * 0.1,
+ fillOpacity: 0.5 - i * 0.05
+ });
+ }
+ }, 10);
+
+ runQuery(latlng, radius, nearby, $("#query-nearby"));
+ runQuery(latlng, radius, isin, $("#query-isin"));
+ }
+
+ function clickHandler(e) {
+ var precision = OSM.zoomPrecision(map.getZoom()),
+ lat = e.latlng.lat.toFixed(precision),
+ lng = e.latlng.lng.toFixed(precision);
+
+ OSM.router.route("/query?lat=" + lat + "&lon=" + lng);
+ }
+
+ function enableQueryMode() {
+ queryButton.addClass("active");
+ map.on("click", clickHandler);
+ $(map.getContainer()).addClass("query-active");
+ }
+
+ function disableQueryMode() {
+ if (marker) map.removeLayer(marker);
+ $(map.getContainer()).removeClass("query-active").removeClass("query-disabled");
+ map.off("click", clickHandler);
+ queryButton.removeClass("active");
+ }
+
+ var page = {};
+
+ page.pushstate = page.popstate = function(path) {
+ OSM.loadSidebarContent(path, function () {
+ page.load(path, true);
+ });
+ };
+
+ page.load = function(path, noCentre) {
+ var params = querystring.parse(path.substring(path.indexOf('?') + 1)),
+ latlng = L.latLng(params.lat, params.lon);
+
+ if (!window.location.hash &&
+ (!noCentre || !map.getBounds().contains(latlng))) {
+ OSM.router.withoutMoveListener(function () {
+ map.setView(latlng, 15);
+ });
+ }
+
+ queryOverpass(params.lat, params.lon);
+ enableQueryMode();
+ };
+
+ page.unload = function() {
+ disableQueryMode();
+ };
+
+ return page;
+};
projects / rails.git / commitdiff
