[API] Update GestureAPI to match docs

src/api/ui/GestureAPI.js

@@ -4,8 +4,9 @@ define([], function () {
      * @interface GestureAPI
      * @memberof module:openmct
      */
-    function GestureAPI() {
+    function GestureAPI(selectGesture, contextMenuGesture) {
-
+        this.selectGesture = selectGesture;
+        this.contextMenuGesture = contextMenuGesture;
     }
 
     /**
@@ -21,7 +22,24 @@ define([], function () {
      * @memberof module:openmct.GestureAPI#
      */
     GestureAPI.prototype.selectable = function (htmlElement, item) {
+        return this.selectGesture.apply(htmlElement, item);
+    };
 
+
+    /**
+     * Designate an HTML element as having a context menu associated with
+     * the provided item.
+     *
+     * @private
+     * @param {HTMLElement} htmlElement the element to make selectable
+     * @param {*} item the object for which a context menu should appear
+     * @returns {Function} a function to remove this geture from this
+     *          HTML element.
+     * @method selectable
+     * @memberof module:openmct.GestureAPI#
+     */
+    GestureAPI.prototype.contextMenu = function (htmlElement, item) {
+        return this.contextMenuGesture.apply(htmlElement, item);
     };
 
     return GestureAPI;

src/openmct.js

@@ -24,6 +24,7 @@ define([
     'EventEmitter',
     './MCT',
     './api/Type',
+    './api/ui/GestureAPI',
     './Registry',
     './selection/Selection',
     './selection/ContextManager',
@@ -35,6 +36,7 @@ define([
     EventEmitter,
     MCT,
     Type,
+    GestureAPI,
     Registry,
     Selection,
     ContextManager,
@@ -72,11 +74,7 @@ define([
 
     openmct.selection = selection;
     openmct.inspectors = new ViewRegistry();
-
+    openmct.gestures = new GestureAPI(select, contextMenu);
-    openmct.gestures = {
-        selectable: select.apply.bind(select),
-        contextual: contextMenu.apply.bind(contextMenu)
-    };
 
     return openmct;
 });