332 lines
8.7 KiB
JavaScript
332 lines
8.7 KiB
JavaScript
//= require templates/browse/feature
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//= require templates/browse/feature_list
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//= require templates/browse/feature_history
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function initializeBrowse(map) {
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var browseBounds;
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var layersById;
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var selectedLayer;
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var browseObjectList;
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var areasHidden = false;
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var locationFilter;
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var dataLayer = map.dataLayer;
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dataLayer.setStyle({
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way: {
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weight: 3,
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color: "#000000",
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opacity: 0.4
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},
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area: {
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weight: 3,
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color: "#ff0000"
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},
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node: {
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color: "#00ff00"
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}
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});
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dataLayer.isWayArea = function () {
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return !areasHidden && L.OSM.DataLayer.prototype.isWayArea.apply(this, arguments);
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};
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dataLayer.on("click", function (e) {
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onSelect(e.layer);
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});
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map.on('layeradd', function (e) {
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if (e.layer === dataLayer) {
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$.ajax({ url: "/browse/start", success: function (sidebarHtml) {
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startBrowse(sidebarHtml);
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}});
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}
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});
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map.on('layerremove', function (e) {
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if (e.layer === dataLayer) {
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closeSidebar();
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}
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});
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function startBrowse(sidebarHtml) {
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locationFilter = new L.LocationFilter({
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enableButton: false,
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adjustButton: false
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}).addTo(map);
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locationFilter.on("change", getData);
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$("#sidebar_title").html(I18n.t('browse.start_rjs.data_frame_title'));
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$("#sidebar_content").html(sidebarHtml);
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openSidebar();
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map.on("moveend", updateData);
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updateData();
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$("#browse_filter_toggle").click(toggleFilter);
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$("#browse_hide_areas_box").html(I18n.t('browse.start_rjs.hide_areas'));
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$("#browse_hide_areas_box").click(toggleAreas);
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$("#sidebar").one("closed", function () {
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map.removeLayer(dataLayer);
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map.removeLayer(locationFilter);
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map.off("moveend", updateData);
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locationFilter.off("change", getData);
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});
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}
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function updateData() {
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if (!locationFilter.isEnabled()) {
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if (map.getZoom() >= 15) {
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var bounds = map.getBounds();
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if (!browseBounds || !browseBounds.contains(bounds)) {
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browseBounds = bounds;
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getData();
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}
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} else {
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setStatus(I18n.t('browse.start_rjs.zoom_or_select'));
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}
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}
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}
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function toggleFilter() {
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if (locationFilter.isEnabled()) {
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$("#browse_filter_toggle").html(I18n.t('browse.start_rjs.manually_select'));
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locationFilter.disable();
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} else {
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$("#browse_filter_toggle").html(I18n.t('browse.start_rjs.view_data'));
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locationFilter.setBounds(map.getBounds().pad(-0.2));
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locationFilter.enable();
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}
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getData();
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}
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function toggleAreas() {
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if (areasHidden) {
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$("#browse_hide_areas_box").html(I18n.t('browse.start_rjs.hide_areas'));
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areasHidden = false;
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} else {
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$("#browse_hide_areas_box").html(I18n.t('browse.start_rjs.show_areas'));
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areasHidden = true;
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}
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getData();
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}
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function displayFeatureWarning(count, limit, callback) {
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clearStatus();
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var div = document.createElement("div");
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var p = document.createElement("p");
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p.appendChild(document.createTextNode(I18n.t("browse.start_rjs.loaded_an_area_with_num_features", { num_features: count, max_features: limit })));
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div.appendChild(p);
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var input = document.createElement("input");
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input.type = "submit";
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input.value = I18n.t('browse.start_rjs.load_data');
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input.onclick = callback;
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div.appendChild(input);
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$("#browse_content").html("");
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$("#browse_content").append(div);
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}
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var dataLoader;
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function getData() {
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var bounds = locationFilter.isEnabled() ? locationFilter.getBounds() : map.getBounds();
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var size = bounds.getSize();
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if (size > OSM.MAX_REQUEST_AREA) {
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setStatus(I18n.t("browse.start_rjs.unable_to_load_size", { max_bbox_size: OSM.MAX_REQUEST_AREA, bbox_size: size }));
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return;
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}
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setStatus(I18n.t('browse.start_rjs.loading'));
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var url = "/api/" + OSM.API_VERSION + "/map?bbox=" + bounds.toBBoxString();
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/*
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* Modern browsers are quite happy showing far more than 100 features in
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* the data browser, so increase the limit to 2000 by default, but keep
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* it restricted to 500 for IE8 and 100 for older IEs.
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*/
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var maxFeatures = 2000;
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/*@cc_on
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if (navigator.appVersion < 8) {
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maxFeatures = 100;
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} else if (navigator.appVersion < 9) {
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maxFeatures = 500;
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}
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@*/
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if (dataLoader) dataLoader.abort();
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dataLoader = $.ajax({
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url: url,
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success: function (xml) {
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clearStatus();
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$("#browse_content").empty();
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dataLayer.clearLayers();
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selectedLayer = null;
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var features = dataLayer.buildFeatures(xml);
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function addFeatures() {
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dataLayer.addData(features);
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layersById = {};
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dataLayer.eachLayer(function (layer) {
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var feature = layer.feature;
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layersById[feature.id] = layer;
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$.extend(feature, {
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typeName: featureTypeName(feature),
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url: "/browse/" + feature.type + "/" + feature.id,
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name: featureName(feature)
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});
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});
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browseObjectList = $(JST["templates/browse/feature_list"]({
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features: features,
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url: url
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}))[0];
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loadObjectList();
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}
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if (features.length < maxFeatures) {
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addFeatures();
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} else {
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displayFeatureWarning(features.length, maxFeatures, addFeatures);
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}
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dataLoader = null;
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}
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});
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}
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function viewFeatureLink() {
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var layer = layersById[$(this).data("feature-id")];
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onSelect(layer);
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if (locationFilter.isEnabled()) {
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map.panTo(layer.getBounds().getCenter());
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}
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return false;
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}
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function loadObjectList() {
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$("#browse_content").html(browseObjectList);
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$("#browse_content").find("a[data-feature-id]").click(viewFeatureLink);
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return false;
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}
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function onSelect(layer) {
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// Unselect previously selected feature
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if (selectedLayer) {
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selectedLayer.setStyle(selectedLayer.originalStyle);
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}
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// Redraw in selected style
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layer.originalStyle = layer.options;
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layer.setStyle({color: '#0000ff', weight: 8});
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// If the current object is the list, don't innerHTML="", since that could clear it.
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if ($("#browse_content").firstChild == browseObjectList) {
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$("#browse_content").removeChild(browseObjectList);
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} else {
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$("#browse_content").empty();
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}
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var feature = layer.feature;
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$("#browse_content").html(JST["templates/browse/feature"]({
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name: featureNameSelect(feature),
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url: "/browse/" + feature.type + "/" + feature.id,
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attributes: feature.tags
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}));
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$("#browse_content").find("a.browse_show_list").click(loadObjectList);
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$("#browse_content").find("a.browse_show_history").click(loadHistory);
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// Stash the currently drawn feature
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selectedLayer = layer;
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}
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function loadHistory() {
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$(this).attr("href", "").text(I18n.t('browse.start_rjs.wait'));
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var feature = selectedLayer.feature;
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$.ajax({
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url: "/api/" + OSM.API_VERSION + "/" + feature.type + "/" + feature.id + "/history",
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success: function (xml) {
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if (selectedLayer.feature != feature || $("#browse_content").firstChild == browseObjectList) {
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return;
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}
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$(this).remove();
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var history = [];
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var nodes = xml.getElementsByTagName(feature.type);
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for (var i = nodes.length - 1; i >= 0; i--) {
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history.push({
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user: nodes[i].getAttribute("user") || I18n.t('browse.start_rjs.private_user'),
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timestamp: nodes[i].getAttribute("timestamp")
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});
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}
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$("#browse_content").append(JST["templates/browse/feature_history"]({
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name: featureNameHistory(feature),
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url: "/browse/" + feature.type + "/" + feature.id,
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history: history
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}));
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}.bind(this)
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});
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return false;
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}
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function featureTypeName(feature) {
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return I18n.t('browse.start_rjs.object_list.type.' + feature.type);
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}
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function featureName(feature) {
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return feature.tags['name:' + $('html').attr('lang')] ||
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feature.tags.name ||
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feature.id;
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}
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function featureNameSelect(feature) {
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return feature.tags['name:' + $('html').attr('lang')] ||
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feature.tags.name ||
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I18n.t("browse.start_rjs.object_list.selected.type." + feature.type, { id: feature.id });
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}
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function featureNameHistory(feature) {
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return feature.tags['name:' + $('html').attr('lang')] ||
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feature.tags.name ||
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I18n.t("browse.start_rjs.object_list.history.type." + feature.type, { id: feature.id });
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}
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function setStatus(status) {
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$("#browse_status").html(status);
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$("#browse_status").show();
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}
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function clearStatus() {
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$("#browse_status").html("");
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$("#browse_status").hide();
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}
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}
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