fixes #6826

Author: hpinkos

Source/Widgets/Viewer/Viewer.js

@@ -257,7 +257,7 @@ define([
      * @param {Boolean} [options.baseLayerPicker=true] If set to false, the BaseLayerPicker widget will not be created.
      * @param {Boolean} [options.fullscreenButton=true] If set to false, the FullscreenButton widget will not be created.
      * @param {Boolean} [options.vrButton=false] If set to true, the VRButton widget will be created.
-     * @param {Boolean} [options.geocoder=true] If set to false, the Geocoder widget will not be created.
+     * @param {Boolean|GeocoderService[]} [options.geocoder=true] If set to false, the Geocoder widget will not be created.
      * @param {Boolean} [options.homeButton=true] If set to false, the HomeButton widget will not be created.
      * @param {Boolean} [options.infoBox=true] If set to false, the InfoBox widget will not be created.
      * @param {Boolean} [options.sceneModePicker=true] If set to false, the SceneModePicker widget will not be created.
@@ -489,9 +489,13 @@ Either specify options.terrainProvider instead or set options.baseLayerPicker to
             var geocoderContainer = document.createElement('div');
             geocoderContainer.className = 'cesium-viewer-geocoderContainer';
             toolbar.appendChild(geocoderContainer);
+            var geocoderService;
+            if (defined(options.geocoder) && typeof options.geocoder !== 'boolean') {
+                geocoderService = isArray(options.geocoder) ? options.geocoder : [options.geocoder];
+            }
             geocoder = new Geocoder({
                 container : geocoderContainer,
-                geocoderServices : defined(options.geocoder) ? (isArray(options.geocoder) ? options.geocoder : [options.geocoder]) : undefined,
+                geocoderServices : geocoderService,
                 scene : scene
             });
             // Subscribe to search so that we can clear the trackedEntity when it is clicked.

Specs/Widgets/Viewer/ViewerSpec.js

@@ -1,6 +1,7 @@
 defineSuite([
         'Core/BoundingSphere',
         'Core/Cartesian3',
+        'Core/CartographicGeocoderService',
         'Core/Clock',
         'Core/ClockRange',
         'Core/ClockStep',
@@ -45,6 +46,7 @@ defineSuite([
     ], 'Widgets/Viewer/Viewer', function(
         BoundingSphere,
         Cartesian3,
+        CartographicGeocoderService,
         Clock,
         ClockRange,
         ClockStep,
@@ -386,6 +388,34 @@ defineSuite([
         viewer.render();
     });
 
+    it('constructs geocoder', function() {
+        viewer = createViewer(container, {
+            geocoder : true
+        });
+        expect(viewer.geocoder).toBeDefined();
+        expect(viewer.geocoder.viewModel._geocoderServices.length).toBe(2);
+    });
+
+    it('constructs geocoder with geocoder service option', function() {
+        var service = new CartographicGeocoderService();
+        viewer = createViewer(container, {
+            geocoder : service
+        });
+        expect(viewer.geocoder).toBeDefined();
+        expect(viewer.geocoder.viewModel._geocoderServices.length).toBe(1);
+        expect(viewer.geocoder.viewModel._geocoderServices[0]).toBe(service);
+    });
+
+    it('constructs geocoder with geocoder service options', function() {
+        var service = new CartographicGeocoderService();
+        viewer = createViewer(container, {
+            geocoder : [service]
+        });
+        expect(viewer.geocoder).toBeDefined();
+        expect(viewer.geocoder.viewModel._geocoderServices.length).toBe(1);
+        expect(viewer.geocoder.viewModel._geocoderServices[0]).toBe(service);
+    });
+
     it('can shut off SelectionIndicator', function() {
         viewer = createViewer(container, {
             selectionIndicator : false