-
- var formatOptions = {
- checkTags: true,
- interestingTagsExclude: ['source','source_ref','source:ref','history','attribution','created_by','tiger:county','tiger:tlid','tiger:upload_uuid']
- };
-
- if (areasHidden) formatOptions.areaTags = [];
-
- if (!browseDataLayer || reload) {
- var style = new OpenLayers.Style();
-
- style.addRules([new OpenLayers.Rule({
- symbolizer: {
- Polygon: { fillColor: '#ff0000', strokeColor: '#ff0000' },
- Line: { fillColor: '#ffff00', strokeColor: '#000000', strokeOpacity: '0.4' },
- Point: { fillColor: '#00ff00', strokeColor: '#00ff00' }
- }
- })]);
-
- if (browseDataLayer) browseDataLayer.destroyFeatures();
-
- /*
- * Modern browsers are quite happy showing far more than 100 features in
- * the data browser, so increase the limit to 2000 by default, but keep
- * it restricted to 500 for IE8 and 100 for older IEs.
- */
- var maxFeatures = 2000;
-
- /*@cc_on
- if (navigator.appVersion < 8) {
- maxFeatures = 100;
- } else if (navigator.appVersion < 9) {
- maxFeatures = 500;
- }
- @*/
-
- browseDataLayer = new OpenLayers.Layer.Vector("Data", {
- strategies: [
- new OpenLayers.Strategy.Fixed()
- ],
- protocol: new OpenLayers.Protocol.HTTP({
- url: url,
- format: new OpenLayers.Format.OSM(formatOptions),
- maxFeatures: maxFeatures,
- handleRead: customDataLoader
- }),
- projection: new OpenLayers.Projection("EPSG:4326"),
- displayInLayerSwitcher: false,
- styleMap: new OpenLayers.StyleMap({
- 'default': style,
- 'select': { strokeColor: '#0000ff', strokeWidth: 8 }
- })
- });
- browseDataLayer.events.register("loadend", browseDataLayer, dataLoaded );
- map.addLayer(browseDataLayer);
-
- browseSelectControl = new OpenLayers.Control.SelectFeature(browseDataLayer, { onSelect: onFeatureSelect });
- browseSelectControl.handlers.feature.stopDown = false;
- browseSelectControl.handlers.feature.stopUp = false;
- map.addControl(browseSelectControl);
- browseSelectControl.activate();
- } else {
- browseDataLayer.destroyFeatures();
- browseDataLayer.refresh({ url: url });
- }
-
- browseActiveFeature = null;
- }
-
- function dataLoaded() {
- if (this.map.dataLayer.active) {
- clearStatus();
-
- browseObjectList = document.createElement("div");
-
- var heading = document.createElement("p");
- heading.className = "browse_heading";
- heading.appendChild(document.createTextNode(I18n.t('browse.start_rjs.object_list.heading')));
- browseObjectList.appendChild(heading);
-
- var list = document.createElement("ul");
-
- for (var i = 0; i < this.features.length; i++) {
- var feature = this.features[i];
-
- // Type, for linking
- var type = featureType(feature);
- var typeName = featureTypeName(feature);
- var li = document.createElement("li");
- li.appendChild(document.createTextNode(typeName + " "));
-
- // Link, for viewing in the tab
- var link = document.createElement("a");
- link.href = "/browse/" + type + "/" + feature.osm_id;
- var name = featureName(feature);
- link.appendChild(document.createTextNode(name));
- link.feature = feature;
- link.onclick = OpenLayers.Function.bind(viewFeatureLink, link);
- li.appendChild(link);
-
- list.appendChild(li);