364 lines
10 KiB
JavaScript
364 lines
10 KiB
JavaScript
//= require jquery.simulate
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OSM.Query = function(map) {
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var url = OSM.OVERPASS_URL,
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queryButton = $(".control-query .control-button"),
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uninterestingTags = ["source", "source_ref", "source:ref", "history", "attribution", "created_by", "tiger:county", "tiger:tlid", "tiger:upload_uuid", "KSJ2:curve_id", "KSJ2:lat", "KSJ2:lon", "KSJ2:coordinate", "KSJ2:filename", "note:ja"],
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marker;
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var featureStyle = {
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color: "#FF6200",
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weight: 4,
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opacity: 1,
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fillOpacity: 0.5,
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interactive: false
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};
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queryButton.on("click", function (e) {
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e.preventDefault();
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e.stopPropagation();
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if (queryButton.hasClass("active")) {
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disableQueryMode();
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} else if (!queryButton.hasClass("disabled")) {
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enableQueryMode();
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}
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}).on("disabled", function () {
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if (queryButton.hasClass("active")) {
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map.off("click", clickHandler);
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$(map.getContainer()).removeClass("query-active").addClass("query-disabled");
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$(this).tooltip("show");
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}
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}).on("enabled", function () {
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if (queryButton.hasClass("active")) {
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map.on("click", clickHandler);
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$(map.getContainer()).removeClass("query-disabled").addClass("query-active");
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$(this).tooltip("hide");
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}
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});
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$("#sidebar_content")
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.on("mouseover", ".query-results li.query-result", function () {
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var geometry = $(this).data("geometry");
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if (geometry) map.addLayer(geometry);
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$(this).addClass("selected");
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})
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.on("mouseout", ".query-results li.query-result", function () {
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var geometry = $(this).data("geometry");
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if (geometry) map.removeLayer(geometry);
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$(this).removeClass("selected");
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})
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.on("mousedown", ".query-results li.query-result", function () {
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var moved = false;
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$(this).one("click", function (e) {
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if (!moved) {
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var geometry = $(this).data("geometry");
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if (geometry) map.removeLayer(geometry);
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if (!$(e.target).is("a")) {
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$(this).find("a").simulate("click", e);
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}
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}
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}).one("mousemove", function () {
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moved = true;
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});
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});
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function interestingFeature(feature) {
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if (feature.tags) {
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for (var key in feature.tags) {
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if (uninterestingTags.indexOf(key) < 0) {
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return true;
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}
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}
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}
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return false;
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}
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function featurePrefix(feature) {
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var tags = feature.tags;
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var prefix = "";
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if (tags.boundary === "administrative" && tags.admin_level) {
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prefix = I18n.t("geocoder.search_osm_nominatim.admin_levels.level" + tags.admin_level, {
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defaultValue: I18n.t("geocoder.search_osm_nominatim.prefix.boundary.administrative")
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});
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} else {
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var prefixes = I18n.t("geocoder.search_osm_nominatim.prefix");
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var key, value;
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for (key in tags) {
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value = tags[key];
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if (prefixes[key]) {
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if (prefixes[key][value]) {
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return prefixes[key][value];
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}
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}
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}
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for (key in tags) {
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value = tags[key];
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if (prefixes[key]) {
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var first = value.substr(0, 1).toUpperCase(),
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rest = value.substr(1).replace(/_/g, " ");
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return first + rest;
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}
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}
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}
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if (!prefix) {
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prefix = I18n.t("javascripts.query." + feature.type);
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}
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return prefix;
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}
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function featureName(feature) {
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var tags = feature.tags,
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locales = I18n.locales.get();
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for (var i = 0; i < locales.length; i++) {
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if (tags["name:" + locales[i]]) {
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return tags["name:" + locales[i]];
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}
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}
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if (tags.name) {
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return tags.name;
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} else if (tags.ref) {
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return tags.ref;
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} else if (tags["addr:housename"]) {
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return tags["addr:housename"];
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} else if (tags["addr:housenumber"] && tags["addr:street"]) {
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return tags["addr:housenumber"] + " " + tags["addr:street"];
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} else {
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return "#" + feature.id;
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}
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}
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function featureGeometry(feature) {
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var geometry;
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if (feature.type === "node" && feature.lat && feature.lon) {
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geometry = L.circleMarker([feature.lat, feature.lon], featureStyle);
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} else if (feature.type === "way" && feature.geometry && feature.geometry.length > 0) {
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geometry = L.polyline(feature.geometry.filter(function (point) {
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return point !== null;
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}).map(function (point) {
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return [point.lat, point.lon];
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}), featureStyle);
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} else if (feature.type === "relation" && feature.members) {
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geometry = L.featureGroup(feature.members.map(featureGeometry).filter(function (geometry) {
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return geometry !== undefined;
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}));
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}
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return geometry;
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}
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function runQuery(latlng, radius, query, $section, merge, compare) {
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var $ul = $section.find("ul");
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$ul.empty();
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$section.show();
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$section.find(".loader").oneTime(1000, "loading", function () {
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$(this).show();
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});
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if ($section.data("ajax")) {
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$section.data("ajax").abort();
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}
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$section.data("ajax", $.ajax({
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url: url,
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method: "POST",
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data: {
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data: "[timeout:10][out:json];" + query,
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},
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success: function(results) {
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var elements;
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$section.find(".loader").stopTime("loading").hide();
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if (merge) {
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elements = results.elements.reduce(function (hash, element) {
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var key = element.type + element.id;
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if ("geometry" in element) {
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delete element.bounds;
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}
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hash[key] = $.extend({}, hash[key], element);
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return hash;
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}, {});
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elements = Object.keys(elements).map(function (key) {
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return elements[key];
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});
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} else {
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elements = results.elements;
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}
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if (compare) {
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elements = elements.sort(compare);
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}
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for (var i = 0; i < elements.length; i++) {
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var element = elements[i];
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if (interestingFeature(element)) {
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var $li = $("<li>")
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.addClass("query-result")
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.data("geometry", featureGeometry(element))
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.appendTo($ul);
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var $p = $("<p>")
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.text(featurePrefix(element) + " ")
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.appendTo($li);
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$("<a>")
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.attr("href", "/" + element.type + "/" + element.id)
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.text(featureName(element))
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.appendTo($p);
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}
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}
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if (results.remark) {
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$("<li>")
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.text(I18n.t("javascripts.query.error", { server: url, error: results.remark }))
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.appendTo($ul);
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}
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if ($ul.find("li").length === 0) {
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$("<li>")
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.text(I18n.t("javascripts.query.nothing_found"))
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.appendTo($ul);
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}
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},
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error: function(xhr, status, error) {
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$section.find(".loader").stopTime("loading").hide();
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$("<li>")
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.text(I18n.t("javascripts.query." + status, { server: url, error: error }))
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.appendTo($ul);
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}
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}));
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}
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function compareSize(feature1, feature2) {
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var width1 = feature1.bounds.maxlon - feature1.bounds.minlon,
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height1 = feature1.bounds.maxlat - feature1.bounds.minlat,
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area1 = width1 * height1,
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width2 = feature2.bounds.maxlat - feature2.bounds.minlat,
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height2 = feature2.bounds.maxlat - feature2.bounds.minlat,
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area2 = width2 * height2;
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return area1 - area2;
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}
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/*
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* To find nearby objects we ask overpass for the union of the
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* following sets:
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*
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* node(around:<radius>,<lat>,lng>)
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* way(around:<radius>,<lat>,lng>)
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* relation(around:<radius>,<lat>,lng>)
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*
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* to find enclosing objects we first find all the enclosing areas:
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*
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* is_in(<lat>,<lng>)->.a
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*
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* and then return the union of the following sets:
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*
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* relation(pivot.a)
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* way(pivot.a)
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*
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* In both cases we then ask to retrieve tags and the geometry
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* for each object.
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*/
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function queryOverpass(lat, lng) {
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var latlng = L.latLng(lat, lng).wrap(),
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bounds = map.getBounds().wrap(),
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bbox = bounds.getSouth() + "," + bounds.getWest() + "," + bounds.getNorth() + "," + bounds.getEast(),
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radius = 10 * Math.pow(1.5, 19 - map.getZoom()),
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around = "around:" + radius + "," + lat + "," + lng,
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nodes = "node(" + around + ")",
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ways = "way(" + around + ")",
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relations = "relation(" + around + ")",
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nearby = "(" + nodes + ";" + ways + ";);out tags geom(" + bbox + ");" + relations + ";out geom(" + bbox + ");",
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isin = "is_in(" + lat + "," + lng + ")->.a;way(pivot.a);out tags bb;out ids geom(" + bbox + ");relation(pivot.a);out tags bb;";
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$("#sidebar_content .query-intro")
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.hide();
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if (marker) map.removeLayer(marker);
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marker = L.circle(latlng, radius, featureStyle).addTo(map);
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$(document).everyTime(75, "fadeQueryMarker", function (i) {
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if (i === 10) {
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map.removeLayer(marker);
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} else {
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marker.setStyle({
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opacity: 1 - i * 0.1,
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fillOpacity: 0.5 - i * 0.05
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});
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}
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}, 10);
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runQuery(latlng, radius, nearby, $("#query-nearby"), false);
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runQuery(latlng, radius, isin, $("#query-isin"), true, compareSize);
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}
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function clickHandler(e) {
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var precision = OSM.zoomPrecision(map.getZoom()),
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latlng = e.latlng.wrap(),
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lat = latlng.lat.toFixed(precision),
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lng = latlng.lng.toFixed(precision);
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OSM.router.route("/query?lat=" + lat + "&lon=" + lng);
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}
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function enableQueryMode() {
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queryButton.addClass("active");
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map.on("click", clickHandler);
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$(map.getContainer()).addClass("query-active");
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}
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function disableQueryMode() {
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if (marker) map.removeLayer(marker);
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$(map.getContainer()).removeClass("query-active").removeClass("query-disabled");
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map.off("click", clickHandler);
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queryButton.removeClass("active");
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}
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var page = {};
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page.pushstate = page.popstate = function(path) {
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OSM.loadSidebarContent(path, function () {
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page.load(path, true);
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});
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};
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page.load = function(path, noCentre) {
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var params = querystring.parse(path.substring(path.indexOf("?") + 1)),
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latlng = L.latLng(params.lat, params.lon);
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if (!window.location.hash && !noCentre && !map.getBounds().contains(latlng)) {
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OSM.router.withoutMoveListener(function () {
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map.setView(latlng, 15);
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});
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}
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queryOverpass(params.lat, params.lon);
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};
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page.unload = function(sameController) {
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if (!sameController) {
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disableQueryMode();
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}
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};
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return page;
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};
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