Store the KML Placemark identifier

src/ol/parser/kml.js

@@ -104,6 +104,7 @@ ol.parser.KML = function(opt_options) {
       'Placemark': function(node, obj) {
         var container = {properties: {}};
         var sharedVertices, callback;
+        var id = node.getAttribute('id');
         this.readChildNodes(node, container);
         if (goog.isDef(container.track)) {
           var track = container.track, j, jj;
@@ -125,6 +126,9 @@ ol.parser.KML = function(opt_options) {
               container.properties['altitude'] = track.points[i].coordinates[2];
             }
             var feature = new ol.Feature(container.properties);
+            if (!goog.isNull(id)) {
+              feature.setFeatureId(id);
+            }
             var geom = track.points[i];
             if (geom) {
               sharedVertices = undefined;
@@ -150,6 +154,9 @@ ol.parser.KML = function(opt_options) {
             }
           }
           feature = new ol.Feature(container.properties);
+          if (!goog.isNull(id)) {
+            feature.setFeatureId(id);
+          }
           if (container.geometry) {
             sharedVertices = undefined;
             if (this.readFeaturesOptions_) {

test/spec/ol/parser/kml.test.js

@@ -86,6 +86,7 @@ describe('ol.parser.kml', function() {
             'itself \n       at the height of the underlying terrain.';
         expect(obj.features[0].get('description')).to.eql(description);
         expect(obj.features[0].get('foo')).to.eql('bar');
+        expect(obj.features[0].getFeatureId()).to.eql('foobarbaz');
       });
     });
     it('Extended data read correctly [2]', function() {

test/spec/ol/parser/kml/extended_data.kml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <kml xmlns="http://www.opengis.net/kml/2.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/kml/2.2 http://schemas.opengis.net/kml/2.2.0/ogckml22.xsd">
-  <Placemark>
+  <Placemark id="foobarbaz">
     <name>Extended data placemark</name>
     <description>Attached to the ground. Intelligently places itself 
        at the height of the underlying terrain.</description>