Remove private static members from MouseWheelZoom interaction

src/ol/interaction/MouseWheelZoom.js

@@ -18,6 +18,15 @@ import {clamp} from '../math.js';
 const MAX_DELTA = 1;
 
 
+/**
+ * @enum {string}
+ */
+export const Mode = {
+  TRACKPAD: 'trackpad',
+  WHEEL: 'wheel'
+};
+
+
 /**
  * @classdesc
  * Allows the user to zoom the map by scrolling the mouse wheel.
@@ -91,7 +100,7 @@ const MouseWheelZoom = function(opt_options) {
 
   /**
    * @private
-   * @type {ol.interaction.MouseWheelZoom.Mode_|undefined}
+   * @type {ol.interaction.Mode|undefined}
    */
   this.mode_ = undefined;
 
@@ -183,11 +192,11 @@ MouseWheelZoom.handleEvent = function(mapBrowserEvent) {
 
   if (!this.mode_ || now - this.startTime_ > this.trackpadEventGap_) {
     this.mode_ = Math.abs(delta) < 4 ?
-      MouseWheelZoom.Mode_.TRACKPAD :
-      MouseWheelZoom.Mode_.WHEEL;
+      Mode.TRACKPAD :
+      Mode.WHEEL;
   }
 
-  if (this.mode_ === MouseWheelZoom.Mode_.TRACKPAD) {
+  if (this.mode_ === Mode.TRACKPAD) {
     const view = map.getView();
     if (this.trackpadTimeoutId_) {
       clearTimeout(this.trackpadTimeoutId_);
@@ -296,12 +305,4 @@ MouseWheelZoom.prototype.setMouseAnchor = function(useAnchor) {
 };
 
 
-/**
- * @enum {string}
- * @private
- */
-MouseWheelZoom.Mode_ = {
-  TRACKPAD: 'trackpad',
-  WHEEL: 'wheel'
-};
 export default MouseWheelZoom;

test/spec/ol/interaction/mousewheelzoom.test.js

@@ -4,7 +4,7 @@ import View from '../../../../src/ol/View.js';
 import Event from '../../../../src/ol/events/Event.js';
 import {DEVICE_PIXEL_RATIO, FIREFOX, SAFARI} from '../../../../src/ol/has.js';
 import Interaction from '../../../../src/ol/interaction/Interaction.js';
-import MouseWheelZoom from '../../../../src/ol/interaction/MouseWheelZoom.js';
+import MouseWheelZoom, {Mode} from '../../../../src/ol/interaction/MouseWheelZoom.js';
 
 
 describe('ol.interaction.MouseWheelZoom', function() {
@@ -65,7 +65,7 @@ describe('ol.interaction.MouseWheelZoom', function() {
     if (FIREFOX) {
       it('works on Firefox in DOM_DELTA_PIXEL mode (trackpad)', function(done) {
         map.once('postrender', function() {
-          expect(interaction.mode_).to.be(MouseWheelZoom.Mode_.TRACKPAD);
+          expect(interaction.mode_).to.be(Mode.TRACKPAD);
           done();
         });
         const event = new MapBrowserEvent('wheel', map, {
@@ -83,7 +83,7 @@ describe('ol.interaction.MouseWheelZoom', function() {
     if (!FIREFOX) {
       it('works in DOM_DELTA_PIXEL mode (trackpad)', function(done) {
         map.once('postrender', function() {
-          expect(interaction.mode_).to.be(MouseWheelZoom.Mode_.TRACKPAD);
+          expect(interaction.mode_).to.be(Mode.TRACKPAD);
           done();
         });
         const event = new MapBrowserEvent('wheel', map, {