Added onlink handler to openlayers overlay layer

web/client/components/map/openlayers/__tests__/Layer-test.jsx

@@ -401,6 +401,38 @@ describe('Openlayers layer', () => {
         expect(closed).toBe(true);
     });
 
+    it('creates and overlay layer for openlayers map with onLink support', () => {
+        let container = document.createElement('div');
+        container.id = 'ovcontainer';
+        document.body.appendChild(container);
+
+        let element = document.createElement('div');
+        element.id = 'overlay-1';
+        let linkElement = document.createElement('a');
+        linkElement.className = 'link';
+        element.appendChild(linkElement);
+        document.body.appendChild(element);
+        let clicked = false;
+        let options = {
+            id: 'overlay-1',
+            position: [13, 43],
+            onLink: () => {
+                clicked = true;
+            }
+        };
+        // create layers
+        let layer = ReactDOM.render(
+            <OpenlayersLayer type="overlay"
+                options={options} map={map} />, document.getElementById('ovcontainer'));
+
+        expect(layer).toExist();
+        const overlayElement = document.getElementById('overlay-1-overlay');
+        expect(overlayElement).toExist();
+        const link = overlayElement.getElementsByClassName('link')[0];
+        link.click();
+        expect(clicked).toBe(true);
+    });
+
     it('creates and overlay layer for openlayers map with no data-reactid attributes', () => {
         let container = document.createElement('div');
         container.id = 'ovcontainer';

web/client/components/map/openlayers/plugins/OverlayLayer.js

@@ -36,6 +36,12 @@ const cloneOriginalOverlay = (original, options) => {
         };
         eventListener.add(close, 'click', onClose);
     }
+    if (options.onLink) {
+        let links = cloned.getElementsByTagName('a');
+        for (let i = 0; i < links.length; i++) {
+            eventListener.add(links[i], 'click', options.onLink);
+        }
+    }
     return cloned;
 };