[Import/Export] Adds Import and Export functionality

Added context actions for importing and exporting JSON representations of domain objects. Added FileInputService for triggering file picker and retrieving uploaded data. Also added a File Input form control for integration with MCTForms.

platform/forms/test/MCTFileInputSpec.js

@@ -0,0 +1,98 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2017, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+define(
+    ["../src/MCTFileInput"],
+    function (MCTFileInput) {
+
+        describe("The mct-file-input directive", function () {
+
+            var mockScope,
+                mockFileInputService,
+                mctFileInput,
+                element,
+                attrs,
+                control;
+
+            beforeEach(function () {
+                attrs = [];
+                control = jasmine.createSpyObj('control', ['$setValidity']);
+                element = jasmine.createSpyObj('element', ['on', 'trigger']);
+                mockFileInputService = jasmine.createSpyObj('fileInputService',
+                    ['getInput']
+                );
+                mockScope = jasmine.createSpyObj(
+                        '$scope',
+                        ['$watch']
+                );
+
+                mockScope.structure = {text: 'Select File'};
+                mockScope.field = "file-input";
+                mockScope.ngModel = {"file-input" : undefined};
+
+                element.on.andCallFake(function (event, clickHandler) {
+                    clickHandler();
+                });
+                mockFileInputService.getInput.andReturn(
+                    Promise.resolve({name: "file-name", body: "file-body"})
+                );
+
+                mctFileInput = new MCTFileInput(mockFileInputService);
+
+                // Need to wait for mock promise
+                var init = false;
+                runs(function () {
+                    mctFileInput.link(mockScope, element, attrs, control);
+                    setTimeout(function () {
+                        init = true;
+                    }, 100);
+                });
+
+                waitsFor(function () {
+                    return init;
+                }, "File selection should have beeen simulated");
+            });
+
+            it("is restricted to attributes", function () {
+                expect(mctFileInput.restrict).toEqual("A");
+            });
+
+            it("changes button text to match file name", function () {
+                expect(element.on).toHaveBeenCalledWith(
+                    'click',
+                    jasmine.any(Function)
+                );
+                expect(mockScope.structure.text).toEqual("file-name");
+            });
+
+            it("validates control on file selection", function () {
+                expect(control.$setValidity.callCount).toBe(2);
+                expect(control.$setValidity.argsForCall[0]).toEqual(
+                    ['file-input', false]
+                );
+                expect(control.$setValidity.argsForCall[1]).toEqual(
+                    ['file-input', true]
+                );
+            });
+        });
+    }
+);