Export render from ol/control/ScaleLine

src/ol/control/ScaleLine.js

@@ -91,11 +91,9 @@ const ScaleLine = function(opt_options) {
    */
   this.renderedHTML_ = '';
 
-  const render = options.render ? options.render : ScaleLine.render;
-
   Control.call(this, {
     element: this.element_,
-    render: render,
+    render: options.render || render,
     target: options.target
   });
 
@@ -129,7 +127,7 @@ ScaleLine.prototype.getUnits = function() {
  * @this {ol.control.ScaleLine}
  * @api
  */
-ScaleLine.render = function(mapEvent) {
+export function render(mapEvent) {
   const frameState = mapEvent.frameState;
   if (!frameState) {
     this.viewState_ = null;
@@ -137,7 +135,7 @@ ScaleLine.render = function(mapEvent) {
     this.viewState_ = frameState.viewState;
   }
   this.updateElement_();
-};
+}
 
 
 /**

test/spec/ol/control/scaleline.test.js

@@ -1,6 +1,6 @@
 import Map from '../../../../src/ol/Map.js';
 import View from '../../../../src/ol/View.js';
-import ScaleLine from '../../../../src/ol/control/ScaleLine.js';
+import ScaleLine, {render} from '../../../../src/ol/control/ScaleLine.js';
 import {fromLonLat} from '../../../../src/ol/proj.js';
 import Projection from '../../../../src/ol/proj/Projection.js';
 
@@ -67,12 +67,10 @@ describe('ol.control.ScaleLine', function() {
     describe('render', function() {
       it('defaults to `ol.control.ScaleLine.render`', function() {
         const ctrl = new ScaleLine();
-        expect(ctrl.render).to.be(ScaleLine.render);
+        expect(ctrl.render).to.be(render);
       });
       it('can be configured', function() {
-        const myRender = function() {
+        const myRender = function() {};
-
-        };
         const ctrl = new ScaleLine({
           render: myRender
         });