Fix broken test

* Removed local storage of navigated path in tree
Co-authored-by: Deep Tailor <deep.j.tailor@nasa.com>

.eslintrc.js

@@ -54,7 +54,7 @@ module.exports = {
             {
                 "anonymous": "always",
                 "asyncArrow": "always",
-                "named": "never",
+                "named": "never"
             }
         ],
         "array-bracket-spacing": "error",
@@ -178,7 +178,10 @@ module.exports = {
         //https://eslint.org/docs/rules/no-whitespace-before-property
         "no-whitespace-before-property": "error",
         // https://eslint.org/docs/rules/object-curly-newline
-        "object-curly-newline": ["error", {"consistent": true, "multiline": true}],
+        "object-curly-newline": ["error", {
+            "consistent": true,
+            "multiline": true
+        }],
         // https://eslint.org/docs/rules/object-property-newline
         "object-property-newline": "error",
         // https://eslint.org/docs/rules/brace-style
@@ -188,7 +191,7 @@ module.exports = {
         // https://eslint.org/docs/rules/operator-linebreak
         "operator-linebreak": ["error", "before", {"overrides": {"=": "after"}}],
         // https://eslint.org/docs/rules/padding-line-between-statements
-        "padding-line-between-statements":["error", {
+        "padding-line-between-statements": ["error", {
             "blankLine": "always",
             "prev": "multiline-block-like",
             "next": "*"
@@ -200,11 +203,17 @@ module.exports = {
         // https://eslint.org/docs/rules/space-infix-ops
         "space-infix-ops": "error",
         // https://eslint.org/docs/rules/space-unary-ops
-        "space-unary-ops": ["error", {"words": true, "nonwords": false}],
+        "space-unary-ops": ["error", {
+            "words": true,
+            "nonwords": false
+        }],
         // https://eslint.org/docs/rules/arrow-spacing
         "arrow-spacing": "error",
         // https://eslint.org/docs/rules/semi-spacing
-        "semi-spacing": ["error", {"before": false, "after": true}],
+        "semi-spacing": ["error", {
+            "before": false,
+            "after": true
+        }],
 
         "vue/html-indent": [
             "error",
@@ -237,6 +246,7 @@ module.exports = {
         }],
         "vue/multiline-html-element-content-newline": "off",
         "vue/singleline-html-element-content-newline": "off",
+        "vue/no-mutating-props": "off"
 
     },
     "overrides": [

example/styleguide/bundle.js

@@ -138,7 +138,7 @@ define([
                     "id": "styleguide:home",
                     "priority": "preferred",
                     "model": {
-                        "type": "folder",
+                        "type": "noneditable.folder",
                         "name": "Style Guide Home",
                         "location": "ROOT",
                         "composition": [
@@ -155,7 +155,7 @@ define([
                     "id": "styleguide:ui-elements",
                     "priority": "preferred",
                     "model": {
-                        "type": "folder",
+                        "type": "noneditable.folder",
                         "name": "UI Elements",
                         "location": "styleguide:home",
                         "composition": [

package.json

@@ -1,6 +1,6 @@
 {
   "name": "openmct",
-  "version": "1.5.0-SNAPSHOT",
+  "version": "1.6.2-SNAPSHOT",
   "description": "The Open MCT core platform",
   "dependencies": {},
   "devDependencies": {
@@ -23,7 +23,7 @@
     "d3-time": "1.0.x",
     "d3-time-format": "2.1.x",
     "eslint": "7.0.0",
-    "eslint-plugin-vue": "^6.0.0",
+    "eslint-plugin-vue": "^7.5.0",
     "eslint-plugin-you-dont-need-lodash-underscore": "^6.10.0",
     "eventemitter3": "^1.2.0",
     "exports-loader": "^0.7.0",

platform/commonUI/edit/src/policies/EditPersistableObjectsPolicy.js

@@ -44,9 +44,9 @@ define(
             // is also invoked during the create process which should be allowed,
             // because it may be saved elsewhere
             if ((key === 'edit' && category === 'view-control') || key === 'properties') {
-                let newStyleObject = objectUtils.toNewFormat(domainObject, domainObject.getId());
+                let identifier = this.openmct.objects.parseKeyString(domainObject.getId());
 
-                return this.openmct.objects.isPersistable(newStyleObject);
+                return this.openmct.objects.isPersistable(identifier);
             }
 
             return true;

platform/commonUI/edit/test/policies/EditPersistableObjectsSpec.js

@@ -43,7 +43,8 @@ define(
                 );
 
                 mockObjectAPI = jasmine.createSpyObj('objectAPI', [
-                    'isPersistable'
+                    'isPersistable',
+                    'parseKeyString'
                 ]);
 
                 mockAPI = {

platform/containment/src/PersistableCompositionPolicy.js

@@ -48,9 +48,9 @@ define(
             // prevents editing of objects that cannot be persisted, so we can assume that this
             // is a new object.
             if (!(parent.hasCapability('editor') && parent.getCapability('editor').isEditContextRoot())) {
-                let newStyleObject = objectUtils.toNewFormat(parent, parent.getId());
+                let identifier = this.openmct.objects.parseKeyString(parent.getId());
 
-                return this.openmct.objects.isPersistable(newStyleObject);
+                return this.openmct.objects.isPersistable(identifier);
             }
 
             return true;

platform/containment/test/PersistableCompositionPolicySpec.js

@@ -33,7 +33,8 @@ define(
 
             beforeEach(function () {
                 objectAPI = jasmine.createSpyObj('objectsAPI', [
-                    'isPersistable'
+                    'isPersistable',
+                    'parseKeyString'
                 ]);
 
                 mockOpenMCT = {

platform/search/src/services/BareBonesSearchWorker.js

@@ -32,7 +32,8 @@
     function indexItem(id, model) {
         indexedItems.push({
             id: id,
-            name: model.name.toLowerCase()
+            name: model.name.toLowerCase(),
+            type: model.type
         });
     }
 

platform/search/src/services/GenericSearchProvider.js

@@ -125,13 +125,12 @@ define([
      * @param topic the topicService.
      */
     GenericSearchProvider.prototype.indexOnMutation = function (topic) {
-        var mutationTopic = topic('mutation'),
+        let mutationTopic = topic('mutation');
-            provider = this;
 
-        mutationTopic.listen(function (mutatedObject) {
+        mutationTopic.listen(mutatedObject => {
-            var editor = mutatedObject.getCapability('editor');
+            let editor = mutatedObject.getCapability('editor');
             if (!editor || !editor.inEditContext()) {
-                provider.index(
+                this.index(
                     mutatedObject.getId(),
                     mutatedObject.getModel()
                 );
@@ -147,10 +146,15 @@ define([
      * @param {String} id to be indexed.
      */
     GenericSearchProvider.prototype.scheduleForIndexing = function (id) {
-        if (!this.indexedIds[id] && !this.pendingIndex[id]) {
+        const identifier = objectUtils.parseKeyString(id);
-            this.indexedIds[id] = true;
+        const objectProvider = this.openmct.objects.getProvider(identifier);
-            this.pendingIndex[id] = true;
+
-            this.idsToIndex.push(id);
+        if (objectProvider === undefined || objectProvider.search === undefined) {
+            if (!this.indexedIds[id] && !this.pendingIndex[id]) {
+                this.indexedIds[id] = true;
+                this.pendingIndex[id] = true;
+                this.idsToIndex.push(id);
+            }
         }
 
         this.keepIndexing();
@@ -262,6 +266,7 @@ define([
                 return {
                     id: hit.item.id,
                     model: hit.item.model,
+                    type: hit.item.type,
                     score: hit.matchCount
                 };
             });

platform/search/src/services/GenericSearchWorker.js

@@ -41,7 +41,8 @@
         indexedItems.push({
             id: id,
             vector: vector,
-            model: model
+            model: model,
+            type: model.type
         });
     }
 

src/MCT.js

@@ -219,7 +219,7 @@ define([
          * @memberof module:openmct.MCT#
          * @name objects
          */
-        this.objects = new api.ObjectAPI();
+        this.objects = new api.ObjectAPI.default(this.types, this);
 
         /**
          * An interface for retrieving and interpreting telemetry data associated
@@ -283,6 +283,7 @@ define([
         this.install(this.plugins.NewFolderAction());
         this.install(this.plugins.ViewDatumAction());
         this.install(this.plugins.ObjectInterceptors());
+        this.install(this.plugins.NonEditableFolder());
     }
 
     MCT.prototype = Object.create(EventEmitter.prototype);
@@ -371,7 +372,7 @@ define([
      *        MCT; if undefined, MCT will be run in the body of the document
      */
     MCT.prototype.start = function (domElement = document.body, isHeadlessMode = false) {
-        if (!this.plugins.DisplayLayout._installed) {
+        if (this.types.get('layout') === undefined) {
             this.install(this.plugins.DisplayLayout({
                 showAsView: ['summary-widget']
             }));

src/adapter/services/LegacyObjectAPIInterceptor.js

@@ -61,6 +61,7 @@ define([
             const newStyleObject = utils.toNewFormat(legacyObject.getModel(), legacyObject.getId());
             const keystring = utils.makeKeyString(newStyleObject.identifier);
 
+            this.eventEmitter.emit(keystring + ':$_synchronize_model', newStyleObject);
             this.eventEmitter.emit(keystring + ":*", newStyleObject);
             this.eventEmitter.emit('mutation', newStyleObject);
         }.bind(this);
@@ -138,6 +139,12 @@ define([
             });
     };
 
+    ObjectServiceProvider.prototype.superSecretFallbackSearch = function (query, options) {
+        const searchService = this.$injector.get('searchService');
+
+        return searchService.query(query);
+    };
+
     // Injects new object API as a decorator so that it hijacks all requests.
     // Object providers implemented on new API should just work, old API should just work, many things may break.
     function LegacyObjectAPIInterceptor(openmct, ROOTS, instantiate, topic, objectService) {

src/api/actions/ActionCollectionSpec.js

@@ -50,6 +50,10 @@ describe('The ActionCollection', () => {
                 }
             }
         ];
+        openmct.objects.addProvider('', jasmine.createSpyObj('mockMutableObjectProvider', [
+            'create',
+            'update'
+        ]));
         mockView = {
             getViewContext: () => {
                 return {

src/api/composition/CompositionCollection.js

@@ -60,6 +60,17 @@ define([
         };
         this.onProviderAdd = this.onProviderAdd.bind(this);
         this.onProviderRemove = this.onProviderRemove.bind(this);
+        this.mutables = {};
+
+        if (this.domainObject.isMutable) {
+            this.returnMutables = true;
+            let unobserve = this.domainObject.$on('$_destroy', () => {
+                Object.values(this.mutables).forEach(mutable => {
+                    this.publicAPI.objects.destroyMutable(mutable);
+                });
+                unobserve();
+            });
+        }
     }
 
     /**
@@ -75,10 +86,6 @@ define([
             throw new Error('Event not supported by composition: ' + event);
         }
 
-        if (!this.mutationListener) {
-            this._synchronize();
-        }
-
         if (this.provider.on && this.provider.off) {
             if (event === 'add') {
                 this.provider.on(
@@ -189,6 +196,13 @@ define([
 
             this.provider.add(this.domainObject, child.identifier);
         } else {
+            if (this.returnMutables && this.publicAPI.objects.supportsMutation(child.identifier)) {
+                let keyString = this.publicAPI.objects.makeKeyString(child.identifier);
+
+                child = this.publicAPI.objects._toMutable(child);
+                this.mutables[keyString] = child;
+            }
+
             this.emit('add', child);
         }
     };
@@ -202,6 +216,8 @@ define([
      * @name load
      */
     CompositionCollection.prototype.load = function () {
+        this.cleanUpMutables();
+
         return this.provider.load(this.domainObject)
             .then(function (children) {
                 return Promise.all(children.map((c) => this.publicAPI.objects.get(c)));
@@ -234,6 +250,14 @@ define([
         if (!skipMutate) {
             this.provider.remove(this.domainObject, child.identifier);
         } else {
+            if (this.returnMutables) {
+                let keyString = this.publicAPI.objects.makeKeyString(child);
+                if (this.mutables[keyString] !== undefined && this.mutables[keyString].isMutable) {
+                    this.publicAPI.objects.destroyMutable(this.mutables[keyString]);
+                    delete this.mutables[keyString];
+                }
+            }
+
             this.emit('remove', child);
         }
     };
@@ -281,12 +305,6 @@ define([
         this.remove(child, true);
     };
 
-    CompositionCollection.prototype._synchronize = function () {
-        this.mutationListener = this.publicAPI.objects.observe(this.domainObject, '*', (newDomainObject) => {
-            this.domainObject = JSON.parse(JSON.stringify(newDomainObject));
-        });
-    };
-
     CompositionCollection.prototype._destroy = function () {
         if (this.mutationListener) {
             this.mutationListener();
@@ -308,5 +326,11 @@ define([
         });
     };
 
+    CompositionCollection.prototype.cleanUpMutables = function () {
+        Object.values(this.mutables).forEach(mutable => {
+            this.publicAPI.objects.destroyMutable(mutable);
+        });
+    };
+
     return CompositionCollection;
 });

src/api/menu/menu.js

@@ -30,12 +30,12 @@ class Menu extends EventEmitter {
         this.options = options;
 
         this.component = new Vue({
-            provide: {
-                actions: options.actions
-            },
             components: {
                 MenuComponent
             },
+            provide: {
+                actions: options.actions
+            },
             template: '<menu-component />'
         });
 

src/api/notifications/NotificationAPI.js

@@ -75,13 +75,20 @@ export default class NotificationAPI extends EventEmitter {
      * Info notifications are low priority informational messages for the user. They will be auto-destroy after a brief
      * period of time.
      * @param {string} message The message to display to the user
+     * @param {Object} [options] object with following properties
+     *      autoDismissTimeout: {number} in miliseconds to automatically dismisses notification
+     *      link: {Object} Add a link to notifications for navigation
+     *              onClick: callback function
+     *              cssClass: css class name to add style on link
+     *              text: text to display for link
      * @returns {InfoNotification}
      */
-    info(message) {
+    info(message, options = {}) {
         let notificationModel = {
             message: message,
             autoDismiss: true,
-            severity: "info"
+            severity: "info",
+            options
         };
 
         return this._notify(notificationModel);
@@ -90,12 +97,19 @@ export default class NotificationAPI extends EventEmitter {
     /**
      * Present an alert to the user.
      * @param {string} message The message to display to the user.
+     * @param {Object} [options] object with following properties
+     *      autoDismissTimeout: {number} in miliseconds to automatically dismisses notification
+     *      link: {Object} Add a link to notifications for navigation
+     *              onClick: callback function
+     *              cssClass: css class name to add style on link
+     *              text: text to display for link
      * @returns {Notification}
      */
-    alert(message) {
+    alert(message, options = {}) {
         let notificationModel = {
             message: message,
-            severity: "alert"
+            severity: "alert",
+            options
         };
 
         return this._notify(notificationModel);
@@ -104,12 +118,19 @@ export default class NotificationAPI extends EventEmitter {
     /**
      * Present an error message to the user
      * @param {string} message
+     * @param {Object} [options] object with following properties
+     *      autoDismissTimeout: {number} in miliseconds to automatically dismisses notification
+     *      link: {Object} Add a link to notifications for navigation
+     *              onClick: callback function
+     *              cssClass: css class name to add style on link
+     *              text: text to display for link
      * @returns {Notification}
      */
-    error(message) {
+    error(message, options = {}) {
         let notificationModel = {
             message: message,
-            severity: "error"
+            severity: "error",
+            options
         };
 
         return this._notify(notificationModel);
@@ -325,9 +346,11 @@ export default class NotificationAPI extends EventEmitter {
         this.emit('notification', notification);
 
         if (notification.model.autoDismiss || this._selectNextNotification()) {
+            const autoDismissTimeout = notification.model.options.autoDismissTimeout
+                || DEFAULT_AUTO_DISMISS_TIMEOUT;
             this.activeTimeout = setTimeout(() => {
                 this._dismissOrMinimize(notification);
-            }, DEFAULT_AUTO_DISMISS_TIMEOUT);
+            }, autoDismissTimeout);
         } else {
             delete this.activeTimeout;
         }

src/api/notifications/NotificationAPISpec.js

@@ -0,0 +1,154 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import NotificationAPI from './NotificationAPI';
+
+describe('The Notifiation API', () => {
+    let notificationAPIInstance;
+    let defaultTimeout = 4000;
+
+    beforeAll(() => {
+        notificationAPIInstance = new NotificationAPI();
+    });
+
+    describe('the info method', () => {
+        let message = 'Example Notification Message';
+        let severity = 'info';
+        let notificationModel;
+
+        beforeAll(() => {
+            notificationModel = notificationAPIInstance.info(message).model;
+        });
+
+        afterAll(() => {
+            notificationAPIInstance.dismissAllNotifications();
+        });
+
+        it('shows a string message with info severity', () => {
+            expect(notificationModel.message).toEqual(message);
+            expect(notificationModel.severity).toEqual(severity);
+        });
+
+        it('auto dismisses the notification after a brief timeout', (done) => {
+            window.setTimeout(() => {
+                expect(notificationAPIInstance.notifications.length).toEqual(0);
+                done();
+            }, defaultTimeout);
+        });
+    });
+
+    describe('the alert method', () => {
+        let message = 'Example alert message';
+        let severity = 'alert';
+        let notificationModel;
+
+        beforeAll(() => {
+            notificationModel = notificationAPIInstance.alert(message).model;
+        });
+
+        afterAll(() => {
+            notificationAPIInstance.dismissAllNotifications();
+        });
+
+        it('shows a string message, with alert severity', () => {
+            expect(notificationModel.message).toEqual(message);
+            expect(notificationModel.severity).toEqual(severity);
+        });
+
+        it('does not auto dismiss the notification', (done) => {
+            window.setTimeout(() => {
+                expect(notificationAPIInstance.notifications.length).toEqual(1);
+                done();
+            }, defaultTimeout);
+        });
+    });
+
+    describe('the error method', () => {
+        let message = 'Example error message';
+        let severity = 'error';
+        let notificationModel;
+
+        beforeAll(() => {
+            notificationModel = notificationAPIInstance.error(message).model;
+        });
+
+        afterAll(() => {
+            notificationAPIInstance.dismissAllNotifications();
+        });
+
+        it('shows a string message, with severity error', () => {
+            expect(notificationModel.message).toEqual(message);
+            expect(notificationModel.severity).toEqual(severity);
+        });
+
+        it('does not auto dismiss the notification', (done) => {
+            window.setTimeout(() => {
+                expect(notificationAPIInstance.notifications.length).toEqual(1);
+                done();
+            }, defaultTimeout);
+        });
+    });
+
+    describe('the progress method', () => {
+        let title = 'This is a progress notification';
+        let message1 = 'Example progress message 1';
+        let message2 = 'Example progress message 2';
+        let percentage1 = 50;
+        let percentage2 = 99.9;
+        let severity = 'info';
+        let notification;
+        let updatedPercentage;
+        let updatedMessage;
+
+        beforeAll(() => {
+            notification = notificationAPIInstance.progress(title, percentage1, message1);
+            notification.on('progress', (percentage, text) => {
+                updatedPercentage = percentage;
+                updatedMessage = text;
+            });
+        });
+
+        afterAll(() => {
+            notificationAPIInstance.dismissAllNotifications();
+        });
+
+        it ('shows a notification with a message, progress message, percentage and info severity', () => {
+            expect(notification.model.message).toEqual(title);
+            expect(notification.model.severity).toEqual(severity);
+            expect(notification.model.progressText).toEqual(message1);
+            expect(notification.model.progressPerc).toEqual(percentage1);
+        });
+
+        it ('allows dynamically updating the progress attributes', () => {
+            notification.progress(percentage2, message2);
+
+            expect(updatedPercentage).toEqual(percentage2);
+            expect(updatedMessage).toEqual(message2);
+        });
+
+        it ('allows dynamically dismissing of progress notification', () => {
+            notification.dismiss();
+
+            expect(notificationAPIInstance.notifications.length).toEqual(0);
+        });
+    });
+});

src/api/objects/MutableDomainObject.js

@@ -0,0 +1,147 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+import _ from 'lodash';
+import utils from './object-utils.js';
+import EventEmitter from 'EventEmitter';
+
+const ANY_OBJECT_EVENT = 'mutation';
+
+/**
+ * Wraps a domain object to keep its model synchronized with other instances of the same object.
+ *
+ * Creating a MutableDomainObject will automatically register listeners to keep its model in sync. As such, developers
+ * should be careful to destroy MutableDomainObject in order to avoid memory leaks.
+ *
+ * All Open MCT API functions that provide objects will provide MutableDomainObjects where possible, except
+ * `openmct.objects.get()`, and will manage that object's lifecycle for you. Calling `openmct.objects.getMutable()`
+ * will result in the creation of a new MutableDomainObject and you will be responsible for destroying it
+ * (via openmct.objects.destroy) when you're done with it.
+ *
+ * @typedef MutableDomainObject
+ * @memberof module:openmct
+ */
+class MutableDomainObject {
+    constructor(eventEmitter) {
+        Object.defineProperties(this, {
+            _globalEventEmitter: {
+                value: eventEmitter,
+                // Property should not be serialized
+                enumerable: false
+            },
+            _instanceEventEmitter: {
+                value: new EventEmitter(),
+                // Property should not be serialized
+                enumerable: false
+            },
+            _observers: {
+                value: [],
+                // Property should not be serialized
+                enumerable: false
+            },
+            isMutable: {
+                value: true,
+                // Property should not be serialized
+                enumerable: false
+            }
+        });
+    }
+    $observe(path, callback) {
+        let fullPath = qualifiedEventName(this, path);
+        let eventOff =
+            this._globalEventEmitter.off.bind(this._globalEventEmitter, fullPath, callback);
+
+        this._globalEventEmitter.on(fullPath, callback);
+        this._observers.push(eventOff);
+
+        return eventOff;
+    }
+    $set(path, value) {
+        _.set(this, path, value);
+        _.set(this, 'modified', Date.now());
+
+        //Emit secret synchronization event first, so that all objects are in sync before subsequent events fired.
+        this._globalEventEmitter.emit(qualifiedEventName(this, '$_synchronize_model'), this);
+
+        //Emit a general "any object" event
+        this._globalEventEmitter.emit(ANY_OBJECT_EVENT, this);
+        //Emit wildcard event, with path so that callback knows what changed
+        this._globalEventEmitter.emit(qualifiedEventName(this, '*'), this, path, value);
+
+        //Emit events specific to properties affected
+        let parentPropertiesList = path.split('.');
+        for (let index = parentPropertiesList.length; index > 0; index--) {
+            let parentPropertyPath = parentPropertiesList.slice(0, index).join('.');
+            this._globalEventEmitter.emit(qualifiedEventName(this, parentPropertyPath), _.get(this, parentPropertyPath));
+        }
+
+        //TODO: Emit events for listeners of child properties when parent changes.
+        // Do it at observer time - also register observers for parent attribute path.
+    }
+
+    $refresh(model) {
+        //TODO: Currently we are updating the entire object.
+        // In the future we could update a specific property of the object using the 'path' parameter.
+        this._globalEventEmitter.emit(qualifiedEventName(this, '$_synchronize_model'), model);
+
+        //Emit wildcard event, with path so that callback knows what changed
+        this._globalEventEmitter.emit(qualifiedEventName(this, '*'), this);
+    }
+
+    $on(event, callback) {
+        this._instanceEventEmitter.on(event, callback);
+
+        return () => this._instanceEventEmitter.off(event, callback);
+    }
+    $destroy() {
+        this._observers.forEach(observer => observer());
+        delete this._globalEventEmitter;
+        delete this._observers;
+        this._instanceEventEmitter.emit('$_destroy');
+    }
+
+    static createMutable(object, mutationTopic) {
+        let mutable = Object.create(new MutableDomainObject(mutationTopic));
+        Object.assign(mutable, object);
+
+        mutable.$observe('$_synchronize_model', (updatedObject) => {
+            let clone = JSON.parse(JSON.stringify(updatedObject));
+            let deleted = _.difference(Object.keys(mutable), Object.keys(updatedObject));
+            deleted.forEach((propertyName) => delete mutable[propertyName]);
+            Object.assign(mutable, clone);
+        });
+
+        return mutable;
+    }
+
+    static mutateObject(object, path, value) {
+        _.set(object, path, value);
+        _.set(object, 'modified', Date.now());
+    }
+}
+
+function qualifiedEventName(object, eventName) {
+    let keystring = utils.makeKeyString(object.identifier);
+
+    return [keystring, eventName].join(':');
+}
+
+export default MutableDomainObject;

src/api/objects/MutableObject.js

@@ -1,102 +0,0 @@
-/*****************************************************************************
- * Open MCT, Copyright (c) 2014-2020, 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([
-    'objectUtils',
-    'lodash'
-], function (
-    utils,
-    _
-) {
-    const ANY_OBJECT_EVENT = "mutation";
-
-    /**
-     * The MutableObject wraps a DomainObject and provides getters and
-     * setters for
-     * @param eventEmitter
-     * @param object
-     * @interface MutableObject
-     */
-    function MutableObject(eventEmitter, object) {
-        this.eventEmitter = eventEmitter;
-        this.object = object;
-        this.unlisteners = [];
-    }
-
-    function qualifiedEventName(object, eventName) {
-        const keystring = utils.makeKeyString(object.identifier);
-
-        return [keystring, eventName].join(':');
-    }
-
-    MutableObject.prototype.stopListening = function () {
-        this.unlisteners.forEach(function (unlisten) {
-            unlisten();
-        });
-        this.unlisteners = [];
-    };
-
-    /**
-     * Observe changes to this domain object.
-     * @param {string} path the property to observe
-     * @param {Function} callback a callback to invoke when new values for
-     *        this property are observed
-     * @method on
-     * @memberof module:openmct.MutableObject#
-     */
-    MutableObject.prototype.on = function (path, callback) {
-        const fullPath = qualifiedEventName(this.object, path);
-        const eventOff =
-            this.eventEmitter.off.bind(this.eventEmitter, fullPath, callback);
-
-        this.eventEmitter.on(fullPath, callback);
-        this.unlisteners.push(eventOff);
-    };
-
-    /**
-     * Modify this domain object.
-     * @param {string} path the property to modify
-     * @param {*} value the new value for this property
-     * @method set
-     * @memberof module:openmct.MutableObject#
-     */
-    MutableObject.prototype.set = function (path, value) {
-        _.set(this.object, path, value);
-        _.set(this.object, 'modified', Date.now());
-
-        const handleRecursiveMutation = function (newObject) {
-            this.object = newObject;
-        }.bind(this);
-
-        //Emit wildcard event
-        this.eventEmitter.emit(qualifiedEventName(this.object, '*'), this.object);
-        //Emit a general "any object" event
-        this.eventEmitter.emit(ANY_OBJECT_EVENT, this.object);
-
-        this.eventEmitter.on(qualifiedEventName(this.object, '*'), handleRecursiveMutation);
-        //Emit event specific to property
-        this.eventEmitter.emit(qualifiedEventName(this.object, path), value);
-        this.eventEmitter.off(qualifiedEventName(this.object, '*'), handleRecursiveMutation);
-    };
-
-    return MutableObject;
-});

src/api/objects/ObjectAPI.js

@@ -20,365 +20,490 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-define([
+import utils from 'objectUtils';
-    'lodash',
+import MutableDomainObject from './MutableDomainObject';
-    'objectUtils',
+import RootRegistry from './RootRegistry';
-    './MutableObject',
+import RootObjectProvider from './RootObjectProvider';
-    './RootRegistry',
+import EventEmitter from 'EventEmitter';
-    './RootObjectProvider',
+import InterceptorRegistry from './InterceptorRegistry';
-    './InterceptorRegistry',
-    'EventEmitter'
-], function (
-    _,
-    utils,
-    MutableObject,
-    RootRegistry,
-    RootObjectProvider,
-    InterceptorRegistry,
-    EventEmitter
-) {
 
-    /**
+/**
-     * Utilities for loading, saving, and manipulating domain objects.
+ * Utilities for loading, saving, and manipulating domain objects.
-     * @interface ObjectAPI
+ * @interface ObjectAPI
-     * @memberof module:openmct
+ * @memberof module:openmct
-     */
+ */
 
-    function ObjectAPI() {
+function ObjectAPI(typeRegistry, openmct) {
-        this.eventEmitter = new EventEmitter();
+    this.typeRegistry = typeRegistry;
-        this.providers = {};
+    this.eventEmitter = new EventEmitter();
-        this.rootRegistry = new RootRegistry();
+    this.providers = {};
-        this.rootProvider = new RootObjectProvider.default(this.rootRegistry);
+    this.rootRegistry = new RootRegistry();
-        this.cache = {};
+    this.injectIdentifierService = function () {
-        this.interceptorRegistry = new InterceptorRegistry.default();
+        this.identifierService = openmct.$injector.get("identifierService");
+    };
+
+    this.rootProvider = new RootObjectProvider(this.rootRegistry);
+    this.cache = {};
+    this.interceptorRegistry = new InterceptorRegistry();
+}
+
+/**
+ * Set fallback provider, this is an internal API for legacy reasons.
+ * @private
+ */
+ObjectAPI.prototype.supersecretSetFallbackProvider = function (p) {
+    this.fallbackProvider = p;
+};
+
+/**
+ * @private
+ */
+ObjectAPI.prototype.getIdentifierService = function () {
+    // Lazily acquire identifier service
+    if (!this.identifierService) {
+        this.injectIdentifierService();
     }
 
-    /**
+    return this.identifierService;
-     * Set fallback provider, this is an internal API for legacy reasons.
+};
-     * @private
-     */
-    ObjectAPI.prototype.supersecretSetFallbackProvider = function (p) {
-        this.fallbackProvider = p;
-    };
 
-    /**
+/**
-     * Retrieve the provider for a given identifier.
+ * Retrieve the provider for a given identifier.
-     * @private
+ * @private
-     */
+ */
-    ObjectAPI.prototype.getProvider = function (identifier) {
+ObjectAPI.prototype.getProvider = function (identifier) {
-        if (identifier.key === 'ROOT') {
+    //handles the '' vs 'mct' namespace issue
-            return this.rootProvider;
+    const keyString = utils.makeKeyString(identifier);
-        }
+    const identifierService = this.getIdentifierService();
+    const namespace = identifierService.parse(keyString).getSpace();
 
-        return this.providers[identifier.namespace] || this.fallbackProvider;
+    if (identifier.key === 'ROOT') {
-    };
+        return this.rootProvider;
+    }
 
-    /**
+    return this.providers[namespace] || this.fallbackProvider;
-     * Get the root-level object.
+};
-     * @returns {Promise.<DomainObject>} a promise for the root object
-     */
-    ObjectAPI.prototype.getRoot = function () {
-        return this.rootProvider.get();
-    };
 
-    /**
+/**
-     * Register a new object provider for a particular namespace.
+ * Get the root-level object.
-     *
+ * @returns {Promise.<DomainObject>} a promise for the root object
-     * @param {string} namespace the namespace for which to provide objects
+ */
-     * @param {module:openmct.ObjectProvider} provider the provider which
+ObjectAPI.prototype.getRoot = function () {
-     *        will handle loading domain objects from this namespace
+    return this.rootProvider.get();
-     * @memberof {module:openmct.ObjectAPI#}
+};
-     * @name addProvider
-     */
-    ObjectAPI.prototype.addProvider = function (namespace, provider) {
-        this.providers[namespace] = provider;
-    };
 
-    /**
+/**
-     * Provides the ability to read, write, and delete domain objects.
+ * Register a new object provider for a particular namespace.
-     *
+ *
-     * When registering a new object provider, all methods on this interface
+ * @param {string} namespace the namespace for which to provide objects
-     * are optional.
+ * @param {module:openmct.ObjectProvider} provider the provider which
-     *
+ *        will handle loading domain objects from this namespace
-     * @interface ObjectProvider
+ * @memberof {module:openmct.ObjectAPI#}
-     * @memberof module:openmct
+ * @name addProvider
-     */
+ */
+ObjectAPI.prototype.addProvider = function (namespace, provider) {
+    this.providers[namespace] = provider;
+};
 
-    /**
+/**
-     * Create the given domain object in the corresponding persistence store
+ * Provides the ability to read, write, and delete domain objects.
-     *
+ *
-     * @method create
+ * When registering a new object provider, all methods on this interface
-     * @memberof module:openmct.ObjectProvider#
+ * are optional.
-     * @param {module:openmct.DomainObject} domainObject the domain object to
+ *
-     *        create
+ * @interface ObjectProvider
-     * @returns {Promise} a promise which will resolve when the domain object
+ * @memberof module:openmct
-     *          has been created, or be rejected if it cannot be saved
+ */
-     */
 
-    /**
+/**
-     * Update this domain object in its persistence store
+ * Create the given domain object in the corresponding persistence store
-     *
+ *
-     * @method update
+ * @method create
-     * @memberof module:openmct.ObjectProvider#
+ * @memberof module:openmct.ObjectProvider#
-     * @param {module:openmct.DomainObject} domainObject the domain object to
+ * @param {module:openmct.DomainObject} domainObject the domain object to
-     *        update
+ *        create
-     * @returns {Promise} a promise which will resolve when the domain object
+ * @returns {Promise} a promise which will resolve when the domain object
-     *          has been updated, or be rejected if it cannot be saved
+ *          has been created, or be rejected if it cannot be saved
-     */
+ */
 
-    /**
+/**
-     * Delete this domain object.
+ * Update this domain object in its persistence store
-     *
+ *
-     * @method delete
+ * @method update
-     * @memberof module:openmct.ObjectProvider#
+ * @memberof module:openmct.ObjectProvider#
-     * @param {module:openmct.DomainObject} domainObject the domain object to
+ * @param {module:openmct.DomainObject} domainObject the domain object to
-     *        delete
+ *        update
-     * @returns {Promise} a promise which will resolve when the domain object
+ * @returns {Promise} a promise which will resolve when the domain object
-     *          has been deleted, or be rejected if it cannot be deleted
+ *          has been updated, or be rejected if it cannot be saved
-     */
+ */
 
-    /**
+/**
-     * Get a domain object.
+ * Delete this domain object.
-     *
+ *
-     * @method get
+ * @method delete
-     * @memberof module:openmct.ObjectProvider#
+ * @memberof module:openmct.ObjectProvider#
-     * @param {string} key the key for the domain object to load
+ * @param {module:openmct.DomainObject} domainObject the domain object to
-     * @returns {Promise} a promise which will resolve when the domain object
+ *        delete
-     *          has been saved, or be rejected if it cannot be saved
+ * @returns {Promise} a promise which will resolve when the domain object
-     */
+ *          has been deleted, or be rejected if it cannot be deleted
+ */
 
-    /**
+/**
-     * Get a domain object.
+ * Get a domain object.
-     *
+ *
-     * @method get
+ * @method get
-     * @memberof module:openmct.ObjectAPI#
+ * @memberof module:openmct.ObjectProvider#
-     * @param {module:openmct.ObjectAPI~Identifier} identifier
+ * @param {string} key the key for the domain object to load
-     *        the identifier for the domain object to load
+ * @returns {Promise} a promise which will resolve when the domain object
-     * @returns {Promise} a promise which will resolve when the domain object
+ *          has been saved, or be rejected if it cannot be saved
-     *          has been saved, or be rejected if it cannot be saved
+ */
-     */
-    ObjectAPI.prototype.get = function (identifier) {
-        let keystring = this.makeKeyString(identifier);
-        if (this.cache[keystring] !== undefined) {
-            return this.cache[keystring];
-        }
 
-        identifier = utils.parseKeyString(identifier);
+ObjectAPI.prototype.get = function (identifier) {
-        const provider = this.getProvider(identifier);
+    let keystring = this.makeKeyString(identifier);
+    if (this.cache[keystring] !== undefined) {
+        return this.cache[keystring];
+    }
 
-        if (!provider) {
+    identifier = utils.parseKeyString(identifier);
-            throw new Error('No Provider Matched');
+    const provider = this.getProvider(identifier);
-        }
 
-        if (!provider.get) {
+    if (!provider) {
-            throw new Error('Provider does not support get!');
+        throw new Error('No Provider Matched');
-        }
+    }
 
-        let objectPromise = provider.get(identifier);
+    if (!provider.get) {
+        throw new Error('Provider does not support get!');
+    }
 
-        this.cache[keystring] = objectPromise;
+    let objectPromise = provider.get(identifier);
+    this.cache[keystring] = objectPromise;
 
-        return objectPromise.then(result => {
+    return objectPromise.then(result => {
-            delete this.cache[keystring];
+        delete this.cache[keystring];
-            const interceptors = this.listGetInterceptors(identifier, result);
+        const interceptors = this.listGetInterceptors(identifier, result);
-            interceptors.forEach(interceptor => {
+        interceptors.forEach(interceptor => {
-                result = interceptor.invoke(identifier, result);
+            result = interceptor.invoke(identifier, result);
-            });
-
-            return result;
         });
-    };
-
-    ObjectAPI.prototype.delete = function () {
-        throw new Error('Delete not implemented');
-    };
-
-    ObjectAPI.prototype.isPersistable = function (domainObject) {
-        let provider = this.getProvider(domainObject.identifier);
-
-        return provider !== undefined
-            && provider.create !== undefined
-            && provider.update !== undefined;
-    };
-
-    /**
-     * Save this domain object in its current state. EXPERIMENTAL
-     *
-     * @private
-     * @memberof module:openmct.ObjectAPI#
-     * @param {module:openmct.DomainObject} domainObject the domain object to
-     *        save
-     * @returns {Promise} a promise which will resolve when the domain object
-     *          has been saved, or be rejected if it cannot be saved
-     */
-    ObjectAPI.prototype.save = function (domainObject) {
-        let provider = this.getProvider(domainObject.identifier);
-        let savedResolve;
-        let result;
-
-        if (!this.isPersistable(domainObject)) {
-            result = Promise.reject('Object provider does not support saving');
-        } else if (hasAlreadyBeenPersisted(domainObject)) {
-            result = Promise.resolve(true);
-        } else {
-            const persistedTime = Date.now();
-            if (domainObject.persisted === undefined) {
-                result = new Promise((resolve) => {
-                    savedResolve = resolve;
-                });
-                domainObject.persisted = persistedTime;
-                provider.create(domainObject).then((response) => {
-                    this.mutate(domainObject, 'persisted', persistedTime);
-                    savedResolve(response);
-                });
-            } else {
-                domainObject.persisted = persistedTime;
-                this.mutate(domainObject, 'persisted', persistedTime);
-                result = provider.update(domainObject);
-            }
-        }
 
         return result;
-    };
+    });
+};
 
-    /**
+/**
-     * Add a root-level object.
+ * Search for domain objects.
-     * @param {module:openmct.ObjectAPI~Identifier|function} an array of
+ *
-     *        identifiers for root level objects, or a function that returns a
+ * Object providersSearches and combines results of each object provider search.
-     *        promise for an identifier or an array of root level objects.
+ * Objects without search provided will have been indexed
-     * @method addRoot
+ * and will be searched using the fallback indexed search.
-     * @memberof module:openmct.ObjectAPI#
+ * Search results are asynchronous and resolve in parallel.
-     */
+ *
-    ObjectAPI.prototype.addRoot = function (key) {
+ * @method search
-        this.rootRegistry.addRoot(key);
+ * @memberof module:openmct.ObjectAPI#
-    };
+ * @param {string} query the term to search for
+ * @param {Object} options search options
+ * @returns {Array.<Promise.<module:openmct.DomainObject>>}
+ *          an array of promises returned from each object provider's search function
+ *          each resolving to domain objects matching provided search query and options.
+ */
+ObjectAPI.prototype.search = function (query, options) {
+    const searchPromises = Object.values(this.providers)
+        .filter(provider => provider.search !== undefined)
+        .map(provider => provider.search(query, options));
 
-    /**
+    searchPromises.push(this.fallbackProvider.superSecretFallbackSearch(query, options)
-     * Modify a domain object.
+        .then(results => results.hits
-     * @param {module:openmct.DomainObject} object the object to mutate
+            .map(hit => utils.toNewFormat(hit.object.getModel(), hit.object.getId()))));
-     * @param {string} path the property to modify
-     * @param {*} value the new value for this property
-     * @method mutate
-     * @memberof module:openmct.ObjectAPI#
-     */
-    ObjectAPI.prototype.mutate = function (domainObject, path, value) {
-        const mutableObject =
-            new MutableObject(this.eventEmitter, domainObject);
 
-        return mutableObject.set(path, value);
+    return searchPromises;
-    };
+};
 
-    /**
+/**
-     * Observe changes to a domain object.
+ * Will fetch object for the given identifier, returning a version of the object that will automatically keep
-     * @param {module:openmct.DomainObject} object the object to observe
+ * itself updated as it is mutated. Before using this function, you should ask yourself whether you really need it.
-     * @param {string} path the property to observe
+ * The platform will provide mutable objects to views automatically if the underlying object can be mutated. The
-     * @param {Function} callback a callback to invoke when new values for
+ * platform will manage the lifecycle of any mutable objects that it provides. If you use `getMutable` you are
-     *        this property are observed
+ * committing to managing that lifecycle yourself. `.destroy` should be called when the object is no longer needed.
-     * @method observe
+ *
-     * @memberof module:openmct.ObjectAPI#
+ * @memberof {module:openmct.ObjectAPI#}
-     */
+ * @returns {Promise.<MutableDomainObject>} a promise that will resolve with a MutableDomainObject if
-    ObjectAPI.prototype.observe = function (domainObject, path, callback) {
+ * the object can be mutated.
-        const mutableObject =
+ */
-            new MutableObject(this.eventEmitter, domainObject);
+ObjectAPI.prototype.getMutable = function (idOrKeyString) {
-        mutableObject.on(path, callback);
+    if (!this.supportsMutation(idOrKeyString)) {
-
+        throw new Error(`Object "${this.makeKeyString(idOrKeyString)}" does not support mutation.`);
-        return mutableObject.stopListening.bind(mutableObject);
-    };
-
-    /**
-     * @param {module:openmct.ObjectAPI~Identifier} identifier
-     * @returns {string} A string representation of the given identifier, including namespace and key
-     */
-    ObjectAPI.prototype.makeKeyString = function (identifier) {
-        return utils.makeKeyString(identifier);
-    };
-
-    /**
-     * Given any number of identifiers, will return true if they are all equal, otherwise false.
-     * @param {module:openmct.ObjectAPI~Identifier[]} identifiers
-     */
-    ObjectAPI.prototype.areIdsEqual = function (...identifiers) {
-        return identifiers.map(utils.parseKeyString)
-            .every(identifier => {
-                return identifier === identifiers[0]
-                    || (identifier.namespace === identifiers[0].namespace
-                        && identifier.key === identifiers[0].key);
-            });
-    };
-
-    ObjectAPI.prototype.getOriginalPath = function (identifier, path = []) {
-        return this.get(identifier).then((domainObject) => {
-            path.push(domainObject);
-            let location = domainObject.location;
-
-            if (location) {
-                return this.getOriginalPath(utils.parseKeyString(location), path);
-            } else {
-                return path;
-            }
-        });
-    };
-
-    /**
-     * Register an object interceptor that transforms a domain object requested via module:openmct.ObjectAPI.get
-     * The domain object will be transformed after it is retrieved from the persistence store
-     * The domain object will be transformed only if the interceptor is applicable to that domain object as defined by the InterceptorDef
-     *
-     * @param {module:openmct.InterceptorDef} interceptorDef the interceptor definition to add
-     * @method addGetInterceptor
-     * @memberof module:openmct.InterceptorRegistry#
-     */
-    ObjectAPI.prototype.addGetInterceptor = function (interceptorDef) {
-        this.interceptorRegistry.addInterceptor(interceptorDef);
-    };
-
-    /**
-     * Retrieve the interceptors for a given domain object.
-     * @private
-     */
-    ObjectAPI.prototype.listGetInterceptors = function (identifier, object) {
-        return this.interceptorRegistry.getInterceptors(identifier, object);
-    };
-
-    /**
-     * Uniquely identifies a domain object.
-     *
-     * @typedef Identifier
-     * @memberof module:openmct.ObjectAPI~
-     * @property {string} namespace the namespace to/from which this domain
-     *           object should be loaded/stored.
-     * @property {string} key a unique identifier for the domain object
-     *           within that namespace
-     */
-
-    /**
-     * A domain object is an entity of relevance to a user's workflow, that
-     * should appear as a distinct and meaningful object within the user
-     * interface. Examples of domain objects are folders, telemetry sensors,
-     * and so forth.
-     *
-     * A few common properties are defined for domain objects. Beyond these,
-     * individual types of domain objects may add more as they see fit.
-     *
-     * @property {module:openmct.ObjectAPI~Identifier} identifier a key/namespace pair which
-     *           uniquely identifies this domain object
-     * @property {string} type the type of domain object
-     * @property {string} name the human-readable name for this domain object
-     * @property {string} [creator] the user name of the creator of this domain
-     *           object
-     * @property {number} [modified] the time, in milliseconds since the UNIX
-     *           epoch, at which this domain object was last modified
-     * @property {module:openmct.ObjectAPI~Identifier[]} [composition] if
-     *           present, this will be used by the default composition provider
-     *           to load domain objects
-     * @typedef DomainObject
-     * @memberof module:openmct
-     */
-
-    function hasAlreadyBeenPersisted(domainObject) {
-        return domainObject.persisted !== undefined
-            && domainObject.persisted === domainObject.modified;
     }
 
-    return ObjectAPI;
+    return this.get(idOrKeyString).then((object) => {
-});
+        const mutableDomainObject = this._toMutable(object);
+
+        // Check if provider supports realtime updates
+        let identifier = utils.parseKeyString(idOrKeyString);
+        let provider = this.getProvider(identifier);
+
+        if (provider !== undefined
+            && provider.observe !== undefined) {
+            let unobserve = provider.observe(identifier, (updatedModel) => {
+                mutableDomainObject.$refresh(updatedModel);
+            });
+            mutableDomainObject.$on('$destroy', () => {
+                unobserve();
+            });
+        }
+
+        return mutableDomainObject;
+    });
+};
+
+/**
+ * This function is for cleaning up a mutable domain object when you're done with it.
+ * You only need to use this if you retrieved the object using `getMutable()`. If the object was provided by the
+ * platform (eg. passed into a `view()` function) then the platform is responsible for its lifecycle.
+ * @param {MutableDomainObject} domainObject
+ */
+ObjectAPI.prototype.destroyMutable = function (domainObject) {
+    if (domainObject.isMutable) {
+        return domainObject.$destroy();
+    } else {
+        throw new Error("Attempted to destroy non-mutable domain object");
+    }
+};
+
+ObjectAPI.prototype.delete = function () {
+    throw new Error('Delete not implemented');
+};
+
+ObjectAPI.prototype.isPersistable = function (idOrKeyString) {
+    let identifier = utils.parseKeyString(idOrKeyString);
+    let provider = this.getProvider(identifier);
+
+    return provider !== undefined
+        && provider.create !== undefined
+        && provider.update !== undefined;
+};
+
+/**
+ * Save this domain object in its current state. EXPERIMENTAL
+ *
+ * @private
+ * @memberof module:openmct.ObjectAPI#
+ * @param {module:openmct.DomainObject} domainObject the domain object to
+ *        save
+ * @returns {Promise} a promise which will resolve when the domain object
+ *          has been saved, or be rejected if it cannot be saved
+ */
+ObjectAPI.prototype.save = function (domainObject) {
+    let provider = this.getProvider(domainObject.identifier);
+    let savedResolve;
+    let result;
+
+    if (!this.isPersistable(domainObject.identifier)) {
+        result = Promise.reject('Object provider does not support saving');
+    } else if (hasAlreadyBeenPersisted(domainObject)) {
+        result = Promise.resolve(true);
+    } else {
+        const persistedTime = Date.now();
+        if (domainObject.persisted === undefined) {
+            result = new Promise((resolve) => {
+                savedResolve = resolve;
+            });
+            domainObject.persisted = persistedTime;
+            provider.create(domainObject).then((response) => {
+                this.mutate(domainObject, 'persisted', persistedTime);
+                savedResolve(response);
+            });
+        } else {
+            domainObject.persisted = persistedTime;
+            this.mutate(domainObject, 'persisted', persistedTime);
+            result = provider.update(domainObject);
+        }
+    }
+
+    return result;
+};
+
+/**
+ * Add a root-level object.
+ * @param {module:openmct.ObjectAPI~Identifier|function} an array of
+ *        identifiers for root level objects, or a function that returns a
+ *        promise for an identifier or an array of root level objects.
+ * @method addRoot
+ * @memberof module:openmct.ObjectAPI#
+ */
+ObjectAPI.prototype.addRoot = function (key) {
+    this.rootRegistry.addRoot(key);
+};
+
+/**
+ * Register an object interceptor that transforms a domain object requested via module:openmct.ObjectAPI.get
+ * The domain object will be transformed after it is retrieved from the persistence store
+ * The domain object will be transformed only if the interceptor is applicable to that domain object as defined by the InterceptorDef
+ *
+ * @param {module:openmct.InterceptorDef} interceptorDef the interceptor definition to add
+ * @method addGetInterceptor
+ * @memberof module:openmct.InterceptorRegistry#
+ */
+ObjectAPI.prototype.addGetInterceptor = function (interceptorDef) {
+    this.interceptorRegistry.addInterceptor(interceptorDef);
+};
+
+/**
+ * Retrieve the interceptors for a given domain object.
+ * @private
+ */
+ObjectAPI.prototype.listGetInterceptors = function (identifier, object) {
+    return this.interceptorRegistry.getInterceptors(identifier, object);
+};
+
+/**
+ * Modify a domain object.
+ * @param {module:openmct.DomainObject} object the object to mutate
+ * @param {string} path the property to modify
+ * @param {*} value the new value for this property
+ * @method mutate
+ * @memberof module:openmct.ObjectAPI#
+ */
+ObjectAPI.prototype.mutate = function (domainObject, path, value) {
+    if (!this.supportsMutation(domainObject.identifier)) {
+        throw `Error: Attempted to mutate immutable object ${domainObject.name}`;
+    }
+
+    if (domainObject.isMutable) {
+        domainObject.$set(path, value);
+    } else {
+        //Creating a temporary mutable domain object allows other mutable instances of the
+        //object to be kept in sync.
+        let mutableDomainObject = this._toMutable(domainObject);
+
+        //Mutate original object
+        MutableDomainObject.mutateObject(domainObject, path, value);
+
+        //Mutate temporary mutable object, in the process informing any other mutable instances
+        mutableDomainObject.$set(path, value);
+
+        //Destroy temporary mutable object
+        this.destroyMutable(mutableDomainObject);
+    }
+};
+
+/**
+ * @private
+ */
+ObjectAPI.prototype._toMutable = function (object) {
+    if (object.isMutable) {
+        return object;
+    } else {
+        return MutableDomainObject.createMutable(object, this.eventEmitter);
+    }
+};
+
+/**
+ * @param module:openmct.ObjectAPI~Identifier identifier An object identifier
+ * @returns {boolean} true if the object can be mutated, otherwise returns false
+ */
+ObjectAPI.prototype.supportsMutation = function (identifier) {
+    return this.isPersistable(identifier);
+};
+
+/**
+ * Observe changes to a domain object.
+ * @param {module:openmct.DomainObject} object the object to observe
+ * @param {string} path the property to observe
+ * @param {Function} callback a callback to invoke when new values for
+ *        this property are observed
+ * @method observe
+ * @memberof module:openmct.ObjectAPI#
+ */
+ObjectAPI.prototype.observe = function (domainObject, path, callback) {
+    if (domainObject.isMutable) {
+        return domainObject.$observe(path, callback);
+    } else {
+        let mutable = this._toMutable(domainObject);
+        mutable.$observe(path, callback);
+
+        return () => mutable.$destroy();
+    }
+};
+
+/**
+ * @param {module:openmct.ObjectAPI~Identifier} identifier
+ * @returns {string} A string representation of the given identifier, including namespace and key
+ */
+ObjectAPI.prototype.makeKeyString = function (identifier) {
+    return utils.makeKeyString(identifier);
+};
+
+/**
+ * @param {string} keyString A string representation of the given identifier, that is, a namespace and key separated by a colon.
+ * @returns {module:openmct.ObjectAPI~Identifier} An identifier object
+ */
+ObjectAPI.prototype.parseKeyString = function (keyString) {
+    return utils.parseKeyString(keyString);
+};
+
+/**
+ * Given any number of identifiers, will return true if they are all equal, otherwise false.
+ * @param {module:openmct.ObjectAPI~Identifier[]} identifiers
+ */
+ObjectAPI.prototype.areIdsEqual = function (...identifiers) {
+    return identifiers.map(utils.parseKeyString)
+        .every(identifier => {
+            return identifier === identifiers[0]
+                || (identifier.namespace === identifiers[0].namespace
+                    && identifier.key === identifiers[0].key);
+        });
+};
+
+ObjectAPI.prototype.getOriginalPath = function (identifier, path = []) {
+    return this.get(identifier).then((domainObject) => {
+        path.push(domainObject);
+        let location = domainObject.location;
+
+        if (location) {
+            return this.getOriginalPath(utils.parseKeyString(location), path);
+        } else {
+            return path;
+        }
+    });
+};
+
+/**
+ * Uniquely identifies a domain object.
+ *
+ * @typedef Identifier
+ * @memberof module:openmct.ObjectAPI~
+ * @property {string} namespace the namespace to/from which this domain
+ *           object should be loaded/stored.
+ * @property {string} key a unique identifier for the domain object
+ *           within that namespace
+ */
+
+/**
+ * A domain object is an entity of relevance to a user's workflow, that
+ * should appear as a distinct and meaningful object within the user
+ * interface. Examples of domain objects are folders, telemetry sensors,
+ * and so forth.
+ *
+ * A few common properties are defined for domain objects. Beyond these,
+ * individual types of domain objects may add more as they see fit.
+ *
+ * @property {module:openmct.ObjectAPI~Identifier} identifier a key/namespace pair which
+ *           uniquely identifies this domain object
+ * @property {string} type the type of domain object
+ * @property {string} name the human-readable name for this domain object
+ * @property {string} [creator] the user name of the creator of this domain
+ *           object
+ * @property {number} [modified] the time, in milliseconds since the UNIX
+ *           epoch, at which this domain object was last modified
+ * @property {module:openmct.ObjectAPI~Identifier[]} [composition] if
+ *           present, this will be used by the default composition provider
+ *           to load domain objects
+ * @typedef DomainObject
+ * @memberof module:openmct
+ */
+
+function hasAlreadyBeenPersisted(domainObject) {
+    return domainObject.persisted !== undefined
+        && domainObject.persisted === domainObject.modified;
+}
+
+export default ObjectAPI;

src/api/objects/ObjectAPISearchSpec.js

@@ -0,0 +1,119 @@
+import ObjectAPI from './ObjectAPI.js';
+
+describe("The Object API Search Function", () => {
+    const MOCK_PROVIDER_KEY = 'mockProvider';
+    const ANOTHER_MOCK_PROVIDER_KEY = 'anotherMockProvider';
+    const MOCK_PROVIDER_SEARCH_DELAY = 15000;
+    const ANOTHER_MOCK_PROVIDER_SEARCH_DELAY = 20000;
+    const TOTAL_TIME_ELAPSED = 21000;
+    const BASE_TIME = new Date(2021, 0, 1);
+
+    let objectAPI;
+    let mockObjectProvider;
+    let anotherMockObjectProvider;
+    let mockFallbackProvider;
+    let fallbackProviderSearchResults;
+    let resultsPromises;
+
+    beforeEach(() => {
+        jasmine.clock().install();
+        jasmine.clock().mockDate(BASE_TIME);
+
+        resultsPromises = [];
+        fallbackProviderSearchResults = {
+            hits: []
+        };
+
+        objectAPI = new ObjectAPI();
+
+        mockObjectProvider = jasmine.createSpyObj("mock object provider", [
+            "search"
+        ]);
+        anotherMockObjectProvider = jasmine.createSpyObj("another mock object provider", [
+            "search"
+        ]);
+        mockFallbackProvider = jasmine.createSpyObj("super secret fallback provider", [
+            "superSecretFallbackSearch"
+        ]);
+        objectAPI.addProvider('objects', mockObjectProvider);
+        objectAPI.addProvider('other-objects', anotherMockObjectProvider);
+        objectAPI.supersecretSetFallbackProvider(mockFallbackProvider);
+
+        mockObjectProvider.search.and.callFake(() => {
+            return new Promise(resolve => {
+                const mockProviderSearch = {
+                    name: MOCK_PROVIDER_KEY,
+                    start: new Date()
+                };
+
+                setTimeout(() => {
+                    mockProviderSearch.end = new Date();
+
+                    return resolve(mockProviderSearch);
+                }, MOCK_PROVIDER_SEARCH_DELAY);
+            });
+        });
+        anotherMockObjectProvider.search.and.callFake(() => {
+            return new Promise(resolve => {
+                const anotherMockProviderSearch = {
+                    name: ANOTHER_MOCK_PROVIDER_KEY,
+                    start: new Date()
+                };
+
+                setTimeout(() => {
+                    anotherMockProviderSearch.end = new Date();
+
+                    return resolve(anotherMockProviderSearch);
+                }, ANOTHER_MOCK_PROVIDER_SEARCH_DELAY);
+            });
+        });
+        mockFallbackProvider.superSecretFallbackSearch.and.callFake(
+            () => new Promise(
+                resolve => setTimeout(
+                    () => resolve(fallbackProviderSearchResults),
+                    50
+                )
+            )
+        );
+
+        resultsPromises = objectAPI.search('foo');
+
+        jasmine.clock().tick(TOTAL_TIME_ELAPSED);
+    });
+
+    afterEach(() => {
+        jasmine.clock().uninstall();
+    });
+
+    it("uses each objects given provider's search function", () => {
+        expect(mockObjectProvider.search).toHaveBeenCalled();
+        expect(anotherMockObjectProvider.search).toHaveBeenCalled();
+    });
+
+    it("uses the fallback indexed search for objects without a search function provided", () => {
+        expect(mockFallbackProvider.superSecretFallbackSearch).toHaveBeenCalled();
+    });
+
+    it("provides each providers results as promises that resolve in parallel", async () => {
+        const results = await Promise.all(resultsPromises);
+        const mockProviderResults = results.find(
+            result => result.name === MOCK_PROVIDER_KEY
+        );
+        const anotherMockProviderResults = results.find(
+            result => result.name === ANOTHER_MOCK_PROVIDER_KEY
+        );
+        const mockProviderStart = mockProviderResults.start.getTime();
+        const mockProviderEnd = mockProviderResults.end.getTime();
+        const anotherMockProviderStart = anotherMockProviderResults.start.getTime();
+        const anotherMockProviderEnd = anotherMockProviderResults.end.getTime();
+        const searchElapsedTime = Math.max(mockProviderEnd, anotherMockProviderEnd)
+            - Math.min(mockProviderEnd, anotherMockProviderEnd);
+
+        expect(mockProviderStart).toBeLessThan(anotherMockProviderEnd);
+        expect(anotherMockProviderStart).toBeLessThan(mockProviderEnd);
+        expect(searchElapsedTime).toBeLessThan(
+            MOCK_PROVIDER_SEARCH_DELAY
+            + ANOTHER_MOCK_PROVIDER_SEARCH_DELAY
+        );
+    });
+});

src/api/objects/ObjectAPISpec.js

@@ -2,12 +2,30 @@ import ObjectAPI from './ObjectAPI.js';
 
 describe("The Object API", () => {
     let objectAPI;
+    let typeRegistry;
+    let openmct = {};
+    let mockIdentifierService;
     let mockDomainObject;
     const TEST_NAMESPACE = "test-namespace";
     const FIFTEEN_MINUTES = 15 * 60 * 1000;
 
     beforeEach(() => {
-        objectAPI = new ObjectAPI();
+        typeRegistry = jasmine.createSpyObj('typeRegistry', [
+            'get'
+        ]);
+        openmct.$injector = jasmine.createSpyObj('$injector', ['get']);
+        mockIdentifierService = jasmine.createSpyObj(
+            'identifierService',
+            ['parse']
+        );
+        mockIdentifierService.parse.and.returnValue({
+            getSpace: () => {
+                return TEST_NAMESPACE;
+            }
+        });
+
+        openmct.$injector.get.and.returnValue(mockIdentifierService);
+        objectAPI = new ObjectAPI(typeRegistry, openmct);
         mockDomainObject = {
             identifier: {
                 namespace: TEST_NAMESPACE,
@@ -33,6 +51,7 @@ describe("The Object API", () => {
                     "update"
                 ]);
                 mockProvider.create.and.returnValue(Promise.resolve(true));
+                mockProvider.update.and.returnValue(Promise.resolve(true));
                 objectAPI.addProvider(TEST_NAMESPACE, mockProvider);
             });
             it("Calls 'create' on provider if object is new", () => {
@@ -128,4 +147,155 @@ describe("The Object API", () => {
             });
         });
     });
+
+    describe("the mutation API", () => {
+        let testObject;
+        let updatedTestObject;
+        let mutable;
+        let mockProvider;
+        let callbacks = [];
+
+        beforeEach(function () {
+            objectAPI = new ObjectAPI(typeRegistry, openmct);
+            testObject = {
+                identifier: {
+                    namespace: TEST_NAMESPACE,
+                    key: 'test-key'
+                },
+                name: 'test object',
+                otherAttribute: 'other-attribute-value',
+                objectAttribute: {
+                    embeddedObject: {
+                        embeddedKey: 'embedded-value'
+                    }
+                }
+            };
+            updatedTestObject = Object.assign({otherAttribute: 'changed-attribute-value'}, testObject);
+            mockProvider = jasmine.createSpyObj("mock provider", [
+                "get",
+                "create",
+                "update",
+                "observe",
+                "observeObjectChanges"
+            ]);
+            mockProvider.get.and.returnValue(Promise.resolve(testObject));
+            mockProvider.observeObjectChanges.and.callFake(() => {
+                callbacks[0](updatedTestObject);
+                callbacks.splice(0, 1);
+            });
+            mockProvider.observe.and.callFake((id, callback) => {
+                if (callbacks.length === 0) {
+                    callbacks.push(callback);
+                } else {
+                    callbacks[0] = callback;
+                }
+            });
+
+            objectAPI.addProvider(TEST_NAMESPACE, mockProvider);
+
+            return objectAPI.getMutable(testObject.identifier)
+                .then(object => {
+                    mutable = object;
+
+                    return mutable;
+                });
+        });
+
+        afterEach(() => {
+            mutable.$destroy();
+        });
+
+        it('mutates the original object', () => {
+            const MUTATED_NAME = 'mutated name';
+            objectAPI.mutate(testObject, 'name', MUTATED_NAME);
+            expect(testObject.name).toBe(MUTATED_NAME);
+        });
+
+        describe ('uses a MutableDomainObject', () => {
+            it('and retains properties of original object ', function () {
+                expect(hasOwnProperty(mutable, 'identifier')).toBe(true);
+                expect(hasOwnProperty(mutable, 'otherAttribute')).toBe(true);
+                expect(mutable.identifier).toEqual(testObject.identifier);
+                expect(mutable.otherAttribute).toEqual(testObject.otherAttribute);
+            });
+
+            it('that is identical to original object when serialized', function () {
+                expect(JSON.stringify(mutable)).toEqual(JSON.stringify(testObject));
+            });
+
+            it('that observes for object changes', function () {
+                let mockListener = jasmine.createSpy('mockListener');
+                objectAPI.observe(testObject, '*', mockListener);
+                mockProvider.observeObjectChanges();
+                expect(mockListener).toHaveBeenCalled();
+            });
+        });
+
+        describe('uses events', function () {
+            let testObjectDuplicate;
+            let mutableSecondInstance;
+
+            beforeEach(function () {
+                // Duplicate object to guarantee we are not sharing object instance, which would invalidate test
+                testObjectDuplicate = JSON.parse(JSON.stringify(testObject));
+                mutableSecondInstance = objectAPI._toMutable(testObjectDuplicate);
+            });
+
+            afterEach(() => {
+                mutableSecondInstance.$destroy();
+            });
+
+            it('to stay synchronized when mutated', function () {
+                objectAPI.mutate(mutable, 'otherAttribute', 'new-attribute-value');
+                expect(mutableSecondInstance.otherAttribute).toBe('new-attribute-value');
+            });
+
+            it('to indicate when a property changes', function () {
+                let mutationCallback = jasmine.createSpy('mutation-callback');
+                let unlisten;
+
+                return new Promise(function (resolve) {
+                    mutationCallback.and.callFake(resolve);
+                    unlisten = objectAPI.observe(mutableSecondInstance, 'otherAttribute', mutationCallback);
+                    objectAPI.mutate(mutable, 'otherAttribute', 'some-new-value');
+                }).then(function () {
+                    expect(mutationCallback).toHaveBeenCalledWith('some-new-value');
+                    unlisten();
+                });
+            });
+
+            it('to indicate when a child property has changed', function () {
+                let embeddedKeyCallback = jasmine.createSpy('embeddedKeyCallback');
+                let embeddedObjectCallback = jasmine.createSpy('embeddedObjectCallback');
+                let objectAttributeCallback = jasmine.createSpy('objectAttribute');
+                let listeners = [];
+
+                return new Promise(function (resolve) {
+                    objectAttributeCallback.and.callFake(resolve);
+
+                    listeners.push(objectAPI.observe(mutableSecondInstance, 'objectAttribute.embeddedObject.embeddedKey', embeddedKeyCallback));
+                    listeners.push(objectAPI.observe(mutableSecondInstance, 'objectAttribute.embeddedObject', embeddedObjectCallback));
+                    listeners.push(objectAPI.observe(mutableSecondInstance, 'objectAttribute', objectAttributeCallback));
+
+                    objectAPI.mutate(mutable, 'objectAttribute.embeddedObject.embeddedKey', 'updated-embedded-value');
+                }).then(function () {
+                    expect(embeddedKeyCallback).toHaveBeenCalledWith('updated-embedded-value');
+                    expect(embeddedObjectCallback).toHaveBeenCalledWith({
+                        embeddedKey: 'updated-embedded-value'
+                    });
+                    expect(objectAttributeCallback).toHaveBeenCalledWith({
+                        embeddedObject: {
+                            embeddedKey: 'updated-embedded-value'
+                        }
+                    });
+
+                    listeners.forEach(listener => listener());
+                });
+            });
+        });
+    });
 });
+
+function hasOwnProperty(object, property) {
+    return Object.prototype.hasOwnProperty.call(object, property);
+}

src/api/objects/RootRegistry.js

@@ -48,7 +48,7 @@ define([
             this.providers.push(function () {
                 return key;
             });
-        } else if (_.isFunction(key)) {
+        } else if (typeof key === "function") {
             this.providers.push(key);
         }
     };

src/api/overlays/Dialog.js

@@ -6,6 +6,9 @@ class Dialog extends Overlay {
     constructor({iconClass, message, title, hint, timestamp, ...options}) {
 
         let component = new Vue({
+            components: {
+                DialogComponent: DialogComponent
+            },
             provide: {
                 iconClass,
                 message,
@@ -13,9 +16,6 @@ class Dialog extends Overlay {
                 hint,
                 timestamp
             },
-            components: {
-                DialogComponent: DialogComponent
-            },
             template: '<dialog-component></dialog-component>'
         }).$mount();
 

src/api/overlays/ProgressDialog.js

@@ -7,6 +7,9 @@ let component;
 class ProgressDialog extends Overlay {
     constructor({progressPerc, progressText, iconClass, message, title, hint, timestamp, ...options}) {
         component = new Vue({
+            components: {
+                ProgressDialogComponent: ProgressDialogComponent
+            },
             provide: {
                 iconClass,
                 message,
@@ -14,9 +17,6 @@ class ProgressDialog extends Overlay {
                 hint,
                 timestamp
             },
-            components: {
-                ProgressDialogComponent: ProgressDialogComponent
-            },
             data() {
                 return {
                     model: {

src/api/overlays/components/OverlayComponent.vue

@@ -38,12 +38,12 @@
 
 <script>
 export default {
+    inject: ['dismiss', 'element', 'buttons', 'dismissable'],
     data: function () {
         return {
             focusIndex: -1
         };
     },
-    inject: ['dismiss', 'element', 'buttons', 'dismissable'],
     mounted() {
         const element = this.$refs.element;
         element.appendChild(this.element);

src/plugins/CouchDBSearchFolder/plugin.js

@@ -0,0 +1,37 @@
+export default function (couchPlugin, searchFilter) {
+    return function install(openmct) {
+        const couchProvider = couchPlugin.couchProvider;
+
+        openmct.objects.addRoot({
+            namespace: 'couch-search',
+            key: 'couch-search'
+        });
+
+        openmct.objects.addProvider('couch-search', {
+            get(identifier) {
+                if (identifier.key !== 'couch-search') {
+                    return undefined;
+                } else {
+                    return Promise.resolve({
+                        identifier,
+                        type: 'folder',
+                        name: "CouchDB Documents"
+                    });
+                }
+            }
+        });
+
+        openmct.composition.addProvider({
+            appliesTo(domainObject) {
+                return domainObject.identifier.namespace === 'couch-search'
+                    && domainObject.identifier.key === 'couch-search';
+            },
+            load() {
+                return couchProvider.getObjectsByFilter(searchFilter).then(objects => {
+                    return objects.map(object => object.identifier);
+                });
+            }
+        });
+    };
+
+}

src/plugins/CouchDBSearchFolder/pluginSpec.js

@@ -0,0 +1,91 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import {createOpenMct, resetApplicationState} from "utils/testing";
+import CouchDBSearchFolderPlugin from './plugin';
+
+describe('the plugin', function () {
+    let identifier = {
+        namespace: 'couch-search',
+        key: "couch-search"
+    };
+    let testPath = '/test/db';
+    let openmct;
+    let composition;
+
+    beforeEach((done) => {
+
+        openmct = createOpenMct();
+
+        let couchPlugin = openmct.plugins.CouchDB(testPath);
+        openmct.install(couchPlugin);
+
+        openmct.install(new CouchDBSearchFolderPlugin(couchPlugin, {
+            "selector": {
+                "model": {
+                    "type": "plan"
+                }
+            }
+        }));
+
+        openmct.on('start', done);
+        openmct.startHeadless();
+
+        composition = openmct.composition.get({identifier});
+
+        spyOn(couchPlugin.couchProvider, 'getObjectsByFilter').and.returnValue(Promise.resolve([
+            {
+                identifier: {
+                    key: "1",
+                    namespace: "mct"
+                }
+            },
+            {
+                identifier: {
+                    key: "2",
+                    namespace: "mct"
+                }
+            }
+        ]));
+    });
+
+    afterEach(() => {
+        return resetApplicationState(openmct);
+    });
+
+    it('provides a folder to hold plans', () => {
+        openmct.objects.get(identifier).then((object) => {
+            expect(object).toEqual({
+                identifier,
+                type: 'folder',
+                name: "CouchDB Documents"
+            });
+        });
+    });
+
+    it('provides composition for couch search folders', () => {
+        composition.load().then((objects) => {
+            expect(objects.length).toEqual(2);
+        });
+    });
+
+});

src/plugins/LADTable/LADTableViewProvider.js

@@ -44,11 +44,15 @@ export default function LADTableViewProvider(openmct) {
                             LadTableComponent: LadTable
                         },
                         provide: {
-                            openmct,
+                            openmct
-                            domainObject,
-                            objectPath
                         },
-                        template: '<lad-table-component></lad-table-component>'
+                        data: () => {
+                            return {
+                                domainObject,
+                                objectPath
+                            };
+                        },
+                        template: '<lad-table-component :domain-object="domainObject" :object-path="objectPath"></lad-table-component>'
                     });
                 },
                 destroy: function (element) {

src/plugins/LADTable/components/LADRow.vue

@@ -26,7 +26,7 @@
     class="js-lad-table__body__row"
     @contextmenu.prevent="showContextMenu"
 >
-    <td class="js-first-data">{{ name }}</td>
+    <td class="js-first-data">{{ domainObject.name }}</td>
     <td class="js-second-data">{{ formattedTimestamp }}</td>
     <td
         class="js-third-data"
@@ -50,12 +50,16 @@ const CONTEXT_MENU_ACTIONS = [
 ];
 
 export default {
-    inject: ['openmct', 'objectPath'],
+    inject: ['openmct'],
     props: {
         domainObject: {
             type: Object,
             required: true
         },
+        objectPath: {
+            type: Array,
+            required: true
+        },
         hasUnits: {
             type: Boolean,
             requred: true
@@ -66,7 +70,6 @@ export default {
         currentObjectPath.unshift(this.domainObject);
 
         return {
-            name: this.domainObject.name,
             timestamp: undefined,
             value: '---',
             valueClass: '',
@@ -89,14 +92,6 @@ export default {
             .telemetry
             .limitEvaluator(this.domainObject);
 
-        this.stopWatchingMutation = this.openmct
-            .objects
-            .observe(
-                this.domainObject,
-                '*',
-                this.updateName
-            );
-
         this.openmct.time.on('timeSystem', this.updateTimeSystem);
         this.openmct.time.on('bounds', this.updateBounds);
 
@@ -119,7 +114,6 @@ export default {
         }
     },
     destroyed() {
-        this.stopWatchingMutation();
         this.unsubscribe();
         this.openmct.time.off('timeSystem', this.updateTimeSystem);
         this.openmct.time.off('bounds', this.updateBounds);
@@ -160,9 +154,6 @@ export default {
                 })
                 .then((array) => this.updateValues(array[array.length - 1]));
         },
-        updateName(name) {
-            this.name = name;
-        },
         updateBounds(bounds, isTick) {
             this.bounds = bounds;
             if (!isTick) {

src/plugins/LADTable/components/LADTable.vue

@@ -36,6 +36,7 @@
                 v-for="item in items"
                 :key="item.key"
                 :domain-object="item.domainObject"
+                :object-path="objectPath"
                 :has-units="hasUnits"
             />
         </tbody>
@@ -47,10 +48,20 @@
 import LadRow from './LADRow.vue';
 
 export default {
-    inject: ['openmct', 'domainObject', 'objectPath'],
     components: {
         LadRow
     },
+    inject: ['openmct'],
+    props: {
+        domainObject: {
+            type: Object,
+            required: true
+        },
+        objectPath: {
+            type: Array,
+            required: true
+        }
+    },
     data() {
         return {
             items: []

src/plugins/LADTable/components/LadTableSet.vue

@@ -57,10 +57,10 @@
 import LadRow from './LADRow.vue';
 
 export default {
-    inject: ['openmct', 'domainObject'],
     components: {
         LadRow
     },
+    inject: ['openmct', 'domainObject'],
     data() {
         return {
             ladTableObjects: [],

src/plugins/clearData/plugin.js

@@ -37,12 +37,12 @@ define([
         return function install(openmct) {
             if (installIndicator) {
                 let component = new Vue ({
-                    provide: {
-                        openmct
-                    },
                     components: {
                         GlobalClearIndicator: GlobaClearIndicator.default
                     },
+                    provide: {
+                        openmct
+                    },
                     template: '<GlobalClearIndicator></GlobalClearIndicator>'
                 });
 

src/plugins/condition/ConditionManager.js

@@ -34,6 +34,9 @@ export default class ConditionManager extends EventEmitter {
         this.composition = this.openmct.composition.get(conditionSetDomainObject);
         this.composition.on('add', this.subscribeToTelemetry, this);
         this.composition.on('remove', this.unsubscribeFromTelemetry, this);
+
+        this.shouldEvaluateNewTelemetry = this.shouldEvaluateNewTelemetry.bind(this);
+
         this.compositionLoad = this.composition.load();
         this.subscriptions = {};
         this.telemetryObjects = {};
@@ -337,6 +340,10 @@ export default class ConditionManager extends EventEmitter {
         return false;
     }
 
+    shouldEvaluateNewTelemetry(currentTimestamp) {
+        return this.openmct.time.bounds().end >= currentTimestamp;
+    }
+
     telemetryReceived(endpoint, datum) {
         if (!this.isTelemetryUsed(endpoint)) {
             return;
@@ -345,10 +352,12 @@ export default class ConditionManager extends EventEmitter {
         const normalizedDatum = this.createNormalizedDatum(datum, endpoint);
         const timeSystemKey = this.openmct.time.timeSystem().key;
         let timestamp = {};
-        timestamp[timeSystemKey] = normalizedDatum[timeSystemKey];
+        const currentTimestamp = normalizedDatum[timeSystemKey];
-
+        timestamp[timeSystemKey] = currentTimestamp;
-        this.updateConditionResults(normalizedDatum);
+        if (this.shouldEvaluateNewTelemetry(currentTimestamp)) {
-        this.updateCurrentCondition(timestamp);
+            this.updateConditionResults(normalizedDatum);
+            this.updateCurrentCondition(timestamp);
+        }
     }
 
     updateConditionResults(normalizedDatum) {

src/plugins/condition/components/Condition.vue

@@ -195,11 +195,11 @@ import { TRIGGER, TRIGGER_LABEL } from "@/plugins/condition/utils/constants";
 import uuid from 'uuid';
 
 export default {
-    inject: ['openmct'],
     components: {
         Criterion,
         ConditionDescription
     },
+    inject: ['openmct'],
     props: {
         currentConditionId: {
             type: String,

src/plugins/condition/components/ConditionCollection.vue

@@ -81,10 +81,10 @@ import Condition from './Condition.vue';
 import ConditionManager from '../ConditionManager';
 
 export default {
-    inject: ['openmct', 'domainObject'],
     components: {
         Condition
     },
+    inject: ['openmct', 'domainObject'],
     props: {
         isEditing: Boolean,
         testData: {

src/plugins/condition/components/ConditionSet.vue

@@ -58,11 +58,11 @@ import TestData from './TestData.vue';
 import ConditionCollection from './ConditionCollection.vue';
 
 export default {
-    inject: ["openmct", "domainObject"],
     components: {
         TestData,
         ConditionCollection
     },
+    inject: ["openmct", "domainObject"],
     props: {
         isEditing: Boolean
     },

src/plugins/condition/components/inspector/ConditionSetDialogTreeItem.vue

@@ -31,7 +31,6 @@
             v-model="expanded"
             class="c-tree__item__view-control"
             :enabled="hasChildren"
-            :propagate="false"
         />
         <div class="c-tree__item__label c-object-label">
             <div
@@ -42,7 +41,7 @@
         </div>
     </div>
     <ul
-        v-if="expanded"
+        v-if="expanded && !isLoading"
         class="c-tree"
     >
         <li
@@ -69,10 +68,10 @@ import viewControl from '@/ui/components/viewControl.vue';
 
 export default {
     name: 'ConditionSetDialogTreeItem',
-    inject: ['openmct'],
     components: {
         viewControl
     },
+    inject: ['openmct'],
     props: {
         node: {
             type: Object,

src/plugins/condition/components/inspector/ConditionSetSelectorDialog.vue

@@ -41,7 +41,7 @@
         ></div>
         <!-- end loading -->
 
-        <div v-if="(allTreeItems.length === 0) || (searchValue && filteredTreeItems.length === 0)"
+        <div v-if="shouldDisplayNoResultsText"
              class="c-tree-and-search__no-results"
         >
             No results found
@@ -63,7 +63,7 @@
         <!-- end main tree -->
 
         <!-- search tree -->
-        <ul v-if="searchValue"
+        <ul v-if="searchValue && !isLoading"
             class="c-tree-and-search__tree c-tree"
         >
             <condition-set-dialog-tree-item
@@ -80,16 +80,17 @@
 </template>
 
 <script>
+import debounce from 'lodash/debounce';
 import search from '@/ui/components/search.vue';
 import ConditionSetDialogTreeItem from './ConditionSetDialogTreeItem.vue';
 
 export default {
-    inject: ['openmct'],
     name: 'ConditionSetSelectorDialog',
     components: {
         search,
         ConditionSetDialogTreeItem
     },
+    inject: ['openmct'],
     data() {
         return {
             expanded: false,
@@ -100,8 +101,20 @@ export default {
             selectedItem: undefined
         };
     },
+    computed: {
+        shouldDisplayNoResultsText() {
+            if (this.isLoading) {
+                return false;
+            }
+
+            return this.allTreeItems.length === 0
+                || (this.searchValue && this.filteredTreeItems.length === 0);
+        }
+    },
+    created() {
+        this.getDebouncedFilteredChildren = debounce(this.getFilteredChildren, 400);
+    },
     mounted() {
-        this.searchService = this.openmct.$injector.get('searchService');
         this.getAllChildren();
     },
     methods: {
@@ -124,37 +137,44 @@ export default {
                 });
         },
         getFilteredChildren() {
-            this.searchService.query(this.searchValue).then(children => {
+            // clear any previous search results
-                this.filteredTreeItems = children.hits.map(child => {
+            this.filteredTreeItems = [];
 
-                    let context = child.object.getCapability('context');
+            const promises = this.openmct.objects.search(this.searchValue)
-                    let object = child.object.useCapability('adapter');
+                .map(promise => promise
-                    let objectPath = [];
+                    .then(results => this.aggregateFilteredChildren(results)));
-                    let navigateToParent;
 
-                    if (context) {
+            Promise.all(promises).then(() => {
-                        objectPath = context.getPath().slice(1)
+                this.isLoading = false;
-                            .map(oldObject => oldObject.useCapability('adapter'))
-                            .reverse();
-                        navigateToParent = '/browse/' + objectPath.slice(1)
-                            .map((parent) => this.openmct.objects.makeKeyString(parent.identifier))
-                            .join('/');
-                    }
-
-                    return {
-                        id: this.openmct.objects.makeKeyString(object.identifier),
-                        object,
-                        objectPath,
-                        navigateToParent
-                    };
-                });
             });
         },
+        async aggregateFilteredChildren(results) {
+            for (const object of results) {
+                const objectPath = await this.openmct.objects.getOriginalPath(object.identifier);
+
+                const navigateToParent = '/browse/'
+                    + objectPath.slice(1)
+                        .map(parent => this.openmct.objects.makeKeyString(parent.identifier))
+                        .join('/');
+
+                const filteredChild = {
+                    id: this.openmct.objects.makeKeyString(object.identifier),
+                    object,
+                    objectPath,
+                    navigateToParent
+                };
+
+                this.filteredTreeItems.push(filteredChild);
+            }
+        },
         searchTree(value) {
             this.searchValue = value;
+            this.isLoading = true;
 
             if (this.searchValue !== '') {
-                this.getFilteredChildren();
+                this.getDebouncedFilteredChildren();
+            } else {
+                this.isLoading = false;
             }
         },
         handleItemSelection(item, node) {

src/plugins/condition/pluginSpec.js

@@ -401,15 +401,15 @@ describe('the plugin', function () {
             let viewContainer = document.createElement('div');
             child.append(viewContainer);
             component = new Vue({
+                el: viewContainer,
+                components: {
+                    StylesView
+                },
                 provide: {
                     openmct: openmct,
                     selection: selection,
                     stylesManager
                 },
-                el: viewContainer,
-                components: {
-                    StylesView
-                },
                 template: '<styles-view/>'
             });
 
@@ -543,7 +543,6 @@ describe('the plugin', function () {
         });
 
         it('should evaluate as stale when telemetry is not received in the allotted time', (done) => {
-
             let conditionMgr = new ConditionManager(conditionSetDomainObject, openmct);
             conditionMgr.on('conditionSetResultUpdated', mockListener);
             conditionMgr.telemetryObjects = {
@@ -565,7 +564,7 @@ describe('the plugin', function () {
         });
 
         it('should not evaluate as stale when telemetry is received in the allotted time', (done) => {
-            const date = Date.now();
+            const date = 1;
             conditionSetDomainObject.configuration.conditionCollection[0].configuration.criteria[0].input = ["0.4"];
             let conditionMgr = new ConditionManager(conditionSetDomainObject, openmct);
             conditionMgr.on('conditionSetResultUpdated', mockListener);

src/plugins/displayLayout/AlphanumericFormatViewProvider.js

@@ -56,14 +56,14 @@ define([
                 return {
                     show: function (element) {
                         component = new Vue({
-                            provide: {
-                                openmct,
-                                objectPath
-                            },
                             el: element,
                             components: {
                                 AlphanumericFormatView: AlphanumericFormatView.default
                             },
+                            provide: {
+                                openmct,
+                                objectPath
+                            },
                             template: '<alphanumeric-format-view ref="alphanumericFormatView"></alphanumeric-format-view>'
                         });
                     },

src/plugins/displayLayout/components/BoxView.vue

@@ -51,11 +51,11 @@ export default {
             height: 5
         };
     },
-    inject: ['openmct'],
     components: {
         LayoutFrame
     },
     mixins: [conditionalStylesMixin],
+    inject: ['openmct'],
     props: {
         item: {
             type: Object,

src/plugins/displayLayout/components/DisplayLayout.vue

@@ -152,10 +152,7 @@ export default {
         }
     },
     data() {
-        let domainObject = JSON.parse(JSON.stringify(this.domainObject));
-
         return {
-            internalDomainObject: domainObject,
             initSelectIndex: undefined,
             selection: [],
             showGrid: true
@@ -163,10 +160,10 @@ export default {
     },
     computed: {
         gridSize() {
-            return this.internalDomainObject.configuration.layoutGrid;
+            return this.domainObject.configuration.layoutGrid;
         },
         layoutItems() {
-            return this.internalDomainObject.configuration.items;
+            return this.domainObject.configuration.items;
         },
         selectedLayoutItems() {
             return this.layoutItems.filter(item => {
@@ -174,7 +171,7 @@ export default {
             });
         },
         layoutDimensions() {
-            return this.internalDomainObject.configuration.layoutDimensions;
+            return this.domainObject.configuration.layoutDimensions;
         },
         shouldDisplayLayoutDimensions() {
             return this.layoutDimensions
@@ -206,12 +203,9 @@ export default {
         }
     },
     mounted() {
-        this.unlisten = this.openmct.objects.observe(this.internalDomainObject, '*', function (obj) {
-            this.internalDomainObject = JSON.parse(JSON.stringify(obj));
-        }.bind(this));
         this.openmct.selection.on('change', this.setSelection);
         this.initializeItems();
-        this.composition = this.openmct.composition.get(this.internalDomainObject);
+        this.composition = this.openmct.composition.get(this.domainObject);
         this.composition.on('add', this.addChild);
         this.composition.on('remove', this.removeChild);
         this.composition.load();
@@ -220,7 +214,6 @@ export default {
         this.openmct.selection.off('change', this.setSelection);
         this.composition.off('add', this.addChild);
         this.composition.off('remove', this.removeChild);
-        this.unlisten();
     },
     methods: {
         addElement(itemType, element) {
@@ -347,7 +340,7 @@ export default {
             this.startingMinY2 = undefined;
         },
         mutate(path, value) {
-            this.openmct.objects.mutate(this.internalDomainObject, path, value);
+            this.openmct.objects.mutate(this.domainObject, path, value);
         },
         handleDrop($event) {
             if (!$event.dataTransfer.types.includes('openmct/domain-object-path')) {
@@ -387,11 +380,11 @@ export default {
             }
         },
         containsObject(identifier) {
-            return _.get(this.internalDomainObject, 'composition')
+            return _.get(this.domainObject, 'composition')
                 .some(childId => this.openmct.objects.areIdsEqual(childId, identifier));
         },
         handleDragOver($event) {
-            if (this.internalDomainObject.locked) {
+            if (this.domainObject.locked) {
                 return;
             }
 
@@ -420,7 +413,7 @@ export default {
             item.id = uuid();
             this.trackItem(item);
             this.layoutItems.push(item);
-            this.openmct.objects.mutate(this.internalDomainObject, "configuration.items", this.layoutItems);
+            this.openmct.objects.mutate(this.domainObject, "configuration.items", this.layoutItems);
             this.initSelectIndex = this.layoutItems.length - 1;
         },
         trackItem(item) {
@@ -477,7 +470,7 @@ export default {
             }
         },
         removeFromComposition(keyString) {
-            let composition = _.get(this.internalDomainObject, 'composition');
+            let composition = _.get(this.domainObject, 'composition');
             composition = composition.filter(identifier => {
                 return this.openmct.objects.makeKeyString(identifier) !== keyString;
             });
@@ -629,10 +622,10 @@ export default {
         createNewDomainObject(domainObject, composition, viewType, nameExtension, model) {
             let identifier = {
                 key: uuid(),
-                namespace: this.internalDomainObject.identifier.namespace
+                namespace: this.domainObject.identifier.namespace
             };
             let type = this.openmct.types.get(viewType);
-            let parentKeyString = this.openmct.objects.makeKeyString(this.internalDomainObject.identifier);
+            let parentKeyString = this.openmct.objects.makeKeyString(this.domainObject.identifier);
             let objectName = nameExtension ? `${domainObject.name}-${nameExtension}` : domainObject.name;
             let object = {};
 
@@ -689,7 +682,7 @@ export default {
             });
         },
         duplicateItem(selectedItems) {
-            let objectStyles = this.internalDomainObject.configuration.objectStyles || {};
+            let objectStyles = this.domainObject.configuration.objectStyles || {};
             let selectItemsArray = [];
             let newDomainObjectsArray = [];
 
@@ -728,8 +721,8 @@ export default {
             });
 
             this.$nextTick(() => {
-                this.openmct.objects.mutate(this.internalDomainObject, "configuration.items", this.layoutItems);
+                this.openmct.objects.mutate(this.domainObject, "configuration.items", this.layoutItems);
-                this.openmct.objects.mutate(this.internalDomainObject, "configuration.objectStyles", objectStyles);
+                this.openmct.objects.mutate(this.domainObject, "configuration.objectStyles", objectStyles);
                 this.$el.click(); //clear selection;
 
                 newDomainObjectsArray.forEach(domainObject => {
@@ -768,13 +761,13 @@ export default {
             };
             this.createNewDomainObject(mockDomainObject, overlayPlotIdentifiers, viewType).then((newDomainObject) => {
                 let newDomainObjectKeyString = this.openmct.objects.makeKeyString(newDomainObject.identifier);
-                let internalDomainObjectKeyString = this.openmct.objects.makeKeyString(this.internalDomainObject.identifier);
+                let domainObjectKeyString = this.openmct.objects.makeKeyString(this.domainObject.identifier);
 
                 this.composition.add(newDomainObject);
                 this.addItem('subobject-view', newDomainObject, position);
 
                 overlayPlots.forEach(overlayPlot => {
-                    if (overlayPlot.location === internalDomainObjectKeyString) {
+                    if (overlayPlot.location === domainObjectKeyString) {
                         this.openmct.objects.mutate(overlayPlot, 'location', newDomainObjectKeyString);
                     }
                 });

src/plugins/displayLayout/components/ImageView.vue

@@ -51,11 +51,11 @@ export default {
             url: element.url
         };
     },
-    inject: ['openmct'],
     components: {
         LayoutFrame
     },
     mixins: [conditionalStylesMixin],
+    inject: ['openmct'],
     props: {
         item: {
             type: Object,

src/plugins/displayLayout/components/LineView.vue

@@ -99,8 +99,8 @@ export default {
             stroke: '#717171'
         };
     },
-    inject: ['openmct'],
     mixins: [conditionalStylesMixin],
+    inject: ['openmct'],
     props: {
         item: {
             type: Object,

src/plugins/displayLayout/components/SubobjectView.vue

@@ -80,11 +80,11 @@ export default {
             viewKey
         };
     },
-    inject: ['openmct', 'objectPath'],
     components: {
         ObjectFrame,
         LayoutFrame
     },
+    inject: ['openmct', 'objectPath'],
     props: {
         item: {
             type: Object,
@@ -129,13 +129,22 @@ export default {
         }
     },
     mounted() {
-        this.openmct.objects.get(this.item.identifier)
+        if (this.openmct.objects.supportsMutation(this.item.identifier)) {
-            .then(this.setObject);
+            this.openmct.objects.getMutable(this.item.identifier)
+                .then(this.setObject);
+        } else {
+            this.openmct.objects.get(this.item.identifier)
+                .then(this.setObject);
+        }
     },
-    destroyed() {
+    beforeDestroy() {
         if (this.removeSelectable) {
             this.removeSelectable();
         }
+
+        if (this.domainObject.isMutable) {
+            this.openmct.objects.destroyMutable(this.domainObject);
+        }
     },
     methods: {
         setObject(domainObject) {

src/plugins/displayLayout/components/TelemetryView.vue

@@ -98,11 +98,11 @@ export default {
             font: 'default'
         };
     },
-    inject: ['openmct', 'objectPath'],
     components: {
         LayoutFrame
     },
     mixins: [conditionalStylesMixin],
+    inject: ['openmct', 'objectPath'],
     props: {
         item: {
             type: Object,
@@ -212,14 +212,20 @@ export default {
         }
     },
     mounted() {
-        this.openmct.objects.get(this.item.identifier)
+        if (this.openmct.objects.supportsMutation(this.item.identifier)) {
-            .then(this.setObject);
+            this.openmct.objects.getMutable(this.item.identifier)
+                .then(this.setObject);
+        } else {
+            this.openmct.objects.get(this.item.identifier)
+                .then(this.setObject);
+        }
+
         this.openmct.time.on("bounds", this.refreshData);
 
         this.status = this.openmct.status.get(this.item.identifier);
         this.removeStatusListener = this.openmct.status.observe(this.item.identifier, this.setStatus);
     },
-    destroyed() {
+    beforeDestroy() {
         this.removeSubscription();
         this.removeStatusListener();
 
@@ -228,6 +234,10 @@ export default {
         }
 
         this.openmct.time.off("bounds", this.refreshData);
+
+        if (this.domainObject.isMutable) {
+            this.openmct.objects.destroyMutable(this.domainObject);
+        }
     },
     methods: {
         formattedValueForCopy() {

src/plugins/displayLayout/components/TextView.vue

@@ -59,11 +59,11 @@ export default {
             font: 'default'
         };
     },
-    inject: ['openmct'],
     components: {
         LayoutFrame
     },
     mixins: [conditionalStylesMixin],
+    inject: ['openmct'],
     props: {
         item: {
             type: Object,

src/plugins/duplicate/pluginSpec.js

@@ -57,6 +57,7 @@ describe("The Duplicate Action plugin", () => {
             overwrite: {
                 folder: {
                     name: "Parent Folder",
+                    type: "folder",
                     composition: [childObject.identifier]
                 }
             }
@@ -104,6 +105,7 @@ describe("The Duplicate Action plugin", () => {
 
         // already installed by default, but never hurts, just adds to context menu
         openmct.install(DuplicateActionPlugin());
+        openmct.types.addType('folder', {creatable: true});
 
         openmct.on('start', done);
         openmct.startHeadless();

src/plugins/filters/FiltersInspectorViewProvider.js

@@ -47,13 +47,13 @@ define([
                 return {
                     show: function (element) {
                         component = new Vue({
-                            provide: {
-                                openmct
-                            },
                             el: element,
                             components: {
                                 FiltersView: FiltersView.default
                             },
+                            provide: {
+                                openmct
+                            },
                             template: '<filters-view></filters-view>'
                         });
                     },

src/plugins/filters/components/FilterObject.vue

@@ -65,11 +65,11 @@ import ToggleSwitch from '../../../ui/components/ToggleSwitch.vue';
 import isEmpty from 'lodash/isEmpty';
 
 export default {
-    inject: ['openmct'],
     components: {
         FilterField,
         ToggleSwitch
     },
+    inject: ['openmct'],
     props: {
         filterObject: {
             type: Object,

src/plugins/filters/components/GlobalFilters.vue

@@ -41,10 +41,10 @@
 import FilterField from './FilterField.vue';
 
 export default {
-    inject: ['openmct'],
     components: {
         FilterField
     },
+    inject: ['openmct'],
     props: {
         globalMetadata: {
             type: Object,

src/plugins/flexibleLayout/components/container.vue

@@ -87,12 +87,12 @@ import DropHint from './dropHint.vue';
 const MIN_FRAME_SIZE = 5;
 
 export default {
-    inject: ['openmct'],
     components: {
         FrameComponent,
         ResizeHandle,
         DropHint
     },
+    inject: ['openmct'],
     props: {
         container: {
             type: Object,

src/plugins/flexibleLayout/components/flexibleLayout.vue

@@ -28,7 +28,7 @@
     ></div>
 
     <div
-        v-if="areAllContainersEmpty()"
+        v-if="allContainersAreEmpty"
         class="c-fl__empty"
     >
         <span class="c-fl__empty-message">This Flexible Layout is currently empty</span>
@@ -94,7 +94,6 @@ import Container from '../utils/container';
 import Frame from '../utils/frame';
 import ResizeHandle from './resizeHandle.vue';
 import DropHint from './dropHint.vue';
-import RemoveAction from '../../remove/RemoveAction.js';
 
 const MIN_CONTAINER_SIZE = 5;
 
@@ -140,19 +139,20 @@ function sizeToFill(items) {
 }
 
 export default {
-    inject: ['openmct', 'objectPath', 'layoutObject'],
     components: {
         ContainerComponent,
         ResizeHandle,
         DropHint
     },
+    inject: ['openmct', 'objectPath', 'layoutObject'],
     props: {
         isEditing: Boolean
     },
     data() {
         return {
             domainObject: this.layoutObject,
-            newFrameLocation: []
+            newFrameLocation: [],
+            identifierMap: {}
         };
     },
     computed: {
@@ -168,26 +168,30 @@ export default {
         },
         rowsLayout() {
             return this.domainObject.configuration.rowsLayout;
+        },
+        allContainersAreEmpty() {
+            return this.containers.every(container => container.frames.length === 0);
         }
     },
     mounted() {
+        this.buildIdentifierMap();
         this.composition = this.openmct.composition.get(this.domainObject);
         this.composition.on('remove', this.removeChildObject);
         this.composition.on('add', this.addFrame);
-
+        this.composition.load();
-        this.RemoveAction = new RemoveAction(this.openmct);
-
-        this.unobserve = this.openmct.objects.observe(this.domainObject, '*', this.updateDomainObject);
     },
     beforeDestroy() {
         this.composition.off('remove', this.removeChildObject);
         this.composition.off('add', this.addFrame);
-
-        this.unobserve();
     },
     methods: {
-        areAllContainersEmpty() {
+        buildIdentifierMap() {
-            return !this.containers.filter(container => container.frames.length).length;
+            this.containers.forEach(container => {
+                container.frames.forEach(frame => {
+                    let keystring = this.openmct.objects.makeKeyString(frame.domainObjectIdentifier);
+                    this.identifierMap[keystring] = true;
+                });
+            });
         },
         addContainer() {
             let container = new Container();
@@ -236,16 +240,21 @@ export default {
             this.newFrameLocation = [containerIndex, insertFrameIndex];
         },
         addFrame(domainObject) {
-            let containerIndex = this.newFrameLocation.length ? this.newFrameLocation[0] : 0;
+            let keystring = this.openmct.objects.makeKeyString(domainObject.identifier);
-            let container = this.containers[containerIndex];
-            let frameIndex = this.newFrameLocation.length ? this.newFrameLocation[1] : container.frames.length;
-            let frame = new Frame(domainObject.identifier);
 
-            container.frames.splice(frameIndex + 1, 0, frame);
+            if (!this.identifierMap[keystring]) {
-            sizeItems(container.frames, frame);
+                let containerIndex = this.newFrameLocation.length ? this.newFrameLocation[0] : 0;
+                let container = this.containers[containerIndex];
+                let frameIndex = this.newFrameLocation.length ? this.newFrameLocation[1] : container.frames.length;
+                let frame = new Frame(domainObject.identifier);
 
-            this.newFrameLocation = [];
+                container.frames.splice(frameIndex + 1, 0, frame);
-            this.persist(containerIndex);
+                sizeItems(container.frames, frame);
+
+                this.newFrameLocation = [];
+                this.persist(containerIndex);
+                this.identifierMap[keystring] = true;
+            }
         },
         deleteFrame(frameId) {
             let container = this.containers
@@ -254,16 +263,20 @@ export default {
                 .frames
                 .filter((f => f.id === frameId))[0];
 
-            this.removeFromComposition(frame.domainObjectIdentifier)
+            this.removeFromComposition(frame.domainObjectIdentifier);
-                .then(() => {
+
-                    sizeToFill(container.frames);
+            this.$nextTick().then(() => {
-                    this.setSelectionToParent();
+                sizeToFill(container.frames);
-                });
+                this.setSelectionToParent();
+            });
         },
         removeFromComposition(identifier) {
-            return this.openmct.objects.get(identifier).then((childDomainObject) => {
+            let keystring = this.openmct.objects.makeKeyString(identifier);
-                this.RemoveAction.removeFromComposition(this.domainObject, childDomainObject);
+
-            });
+            this.identifierMap[keystring] = undefined;
+            delete this.identifierMap[keystring];
+
+            this.composition.remove({identifier});
         },
         setSelectionToParent() {
             this.$el.click();

src/plugins/flexibleLayout/components/frame.vue

@@ -58,10 +58,10 @@
 import ObjectFrame from '../../../ui/components/ObjectFrame.vue';
 
 export default {
-    inject: ['openmct'],
     components: {
         ObjectFrame
     },
+    inject: ['openmct'],
     props: {
         frame: {
             type: Object,

src/plugins/flexibleLayout/flexibleLayoutViewProvider.js

@@ -44,15 +44,15 @@ define([
                 return {
                     show: function (element, isEditing) {
                         component = new Vue({
+                            el: element,
+                            components: {
+                                FlexibleLayoutComponent: FlexibleLayoutComponent.default
+                            },
                             provide: {
                                 openmct,
                                 objectPath,
                                 layoutObject: domainObject
                             },
-                            el: element,
-                            components: {
-                                FlexibleLayoutComponent: FlexibleLayoutComponent.default
-                            },
                             data() {
                                 return {
                                     isEditing: isEditing

src/plugins/folderView/FolderGridView.js

@@ -22,18 +22,22 @@
 
 define([
     './components/GridView.vue',
+    './constants.js',
     'vue'
 ], function (
     GridViewComponent,
+    constants,
     Vue
 ) {
     function FolderGridView(openmct) {
+        const ALLOWED_FOLDER_TYPES = constants.ALLOWED_FOLDER_TYPES;
+
         return {
             key: 'grid',
             name: 'Grid View',
             cssClass: 'icon-thumbs-strip',
             canView: function (domainObject) {
-                return domainObject.type === 'folder';
+                return ALLOWED_FOLDER_TYPES.includes(domainObject.type);
             },
             view: function (domainObject) {
                 let component;

src/plugins/folderView/FolderListView.js

@@ -22,20 +22,24 @@
 
 define([
     './components/ListView.vue',
+    './constants.js',
     'vue',
     'moment'
 ], function (
     ListViewComponent,
+    constants,
     Vue,
     Moment
 ) {
     function FolderListView(openmct) {
+        const ALLOWED_FOLDER_TYPES = constants.ALLOWED_FOLDER_TYPES;
+
         return {
             key: 'list-view',
             name: 'List View',
             cssClass: 'icon-list-view',
             canView: function (domainObject) {
-                return domainObject.type === 'folder';
+                return ALLOWED_FOLDER_TYPES.includes(domainObject.type);
             },
             view: function (domainObject) {
                 let component;

src/plugins/folderView/constants.js

@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Open MCT, Copyright (c) 2014-2020, United States Government
+ * Open MCT, Copyright (c) 2014-2021, United States Government
  * as represented by the Administrator of the National Aeronautics and Space
  * Administration. All rights reserved.
  *
@@ -20,13 +20,4 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-define([
+export const ALLOWED_FOLDER_TYPES = ['folder', 'noneditable.folder'];
-    "EventEmitter"
-], function (
-    EventEmitter
-) {
-    /**
-     * Provides a singleton event bus for sharing between objects.
-     */
-    return new EventEmitter();
-});

src/plugins/goToOriginalAction/pluginSpec.js

@@ -0,0 +1,73 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+import {
+    createOpenMct,
+    resetApplicationState
+} from 'utils/testing';
+
+describe("the plugin", () => {
+    let openmct;
+    let goToFolderAction;
+    let mockObjectPath;
+
+    beforeEach((done) => {
+        openmct = createOpenMct();
+
+        openmct.on('start', done);
+        openmct.startHeadless();
+
+        goToFolderAction = openmct.actions._allActions.goToOriginal;
+    });
+
+    afterEach(() => {
+        return resetApplicationState(openmct);
+    });
+
+    it('installs the go to folder action', () => {
+        expect(goToFolderAction).toBeDefined();
+    });
+
+    describe('when invoked', () => {
+
+        beforeEach(() => {
+            mockObjectPath = [{
+                name: 'mock folder',
+                type: 'folder',
+                identifier: {
+                    key: 'mock-folder',
+                    namespace: ''
+                }
+            }];
+            spyOn(openmct.objects, 'get').and.returnValue(Promise.resolve({
+                identifier: {
+                    namespace: '',
+                    key: 'test'
+                }
+            }));
+            goToFolderAction.invoke(mockObjectPath);
+        });
+
+        it('goes to the original location', () => {
+            expect(window.location.href).toContain('context.html#/browse/?tc.mode=fixed&tc.startBound=0&tc.endBound=1&tc.timeSystem=utc');
+        });
+    });
+});

src/plugins/interceptors/pluginSpec.js

@@ -0,0 +1,99 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import { createOpenMct, resetApplicationState } from "utils/testing";
+import InterceptorPlugin from "./plugin";
+
+describe('the plugin', function () {
+    let element;
+    let child;
+    let openmct;
+    const TEST_NAMESPACE = 'test';
+
+    beforeEach((done) => {
+        const appHolder = document.createElement('div');
+        appHolder.style.width = '640px';
+        appHolder.style.height = '480px';
+
+        openmct = createOpenMct();
+        openmct.install(new InterceptorPlugin(openmct));
+
+        element = document.createElement('div');
+        element.style.width = '640px';
+        element.style.height = '480px';
+        child = document.createElement('div');
+        child.style.width = '640px';
+        child.style.height = '480px';
+        element.appendChild(child);
+
+        openmct.on('start', done);
+        openmct.startHeadless(appHolder);
+    });
+
+    afterEach(() => {
+        return resetApplicationState(openmct);
+    });
+
+    describe('the missingObjectInterceptor', () => {
+        let mockProvider;
+        beforeEach(() => {
+            mockProvider = jasmine.createSpyObj("mock provider", [
+                "get"
+            ]);
+            mockProvider.get.and.returnValue(Promise.resolve(undefined));
+            openmct.objects.addProvider(TEST_NAMESPACE, mockProvider);
+        });
+
+        it('returns missing objects', (done) => {
+            const identifier = {
+                namespace: TEST_NAMESPACE,
+                key: 'hello'
+            };
+            openmct.objects.get(identifier).then((testObject) => {
+                expect(testObject).toEqual({
+                    identifier,
+                    type: 'unknown',
+                    name: 'Missing: test:hello'
+                });
+                done();
+            });
+        });
+
+        it('returns the My items object if not found', (done) => {
+            const identifier = {
+                namespace: TEST_NAMESPACE,
+                key: 'mine'
+            };
+            openmct.objects.get(identifier).then((testObject) => {
+                expect(testObject).toEqual({
+                    identifier,
+                    "name": "My Items",
+                    "type": "folder",
+                    "composition": [],
+                    "location": "ROOT"
+                });
+                done();
+            });
+        });
+
+    });
+});

src/plugins/nonEditableFolder/plugin.js

@@ -0,0 +1,33 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+export default function () {
+    return function (openmct) {
+        openmct.types.addType("noneditable.folder", {
+            name: "Non-Editable Folder",
+            key: "noneditable.folder",
+            description: "Create folders to organize other objects or links to objects without the ability to edit it's properties.",
+            cssClass: "icon-folder",
+            creatable: false
+        });
+    };
+}

src/plugins/nonEditableFolder/pluginSpec.js

@@ -0,0 +1,50 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+import {
+    createOpenMct,
+    resetApplicationState
+} from 'utils/testing';
+
+describe("the plugin", () => {
+    const NON_EDITABLE_FOLDER_KEY = 'noneditable.folder';
+    let openmct;
+
+    beforeEach((done) => {
+        openmct = createOpenMct();
+        openmct.install(openmct.plugins.NonEditableFolder());
+
+        openmct.on('start', done);
+        openmct.startHeadless();
+    });
+
+    afterEach(() => {
+        return resetApplicationState(openmct);
+    });
+
+    it('adds the new non-editable folder type', () => {
+        const type = openmct.types.get(NON_EDITABLE_FOLDER_KEY);
+
+        expect(type).toBeDefined();
+        expect(type.definition.creatable).toBeFalse();
+    });
+
+});

src/plugins/notebook/components/Notebook.vue

@@ -97,7 +97,8 @@
                                :selected-page="getSelectedPage()"
                                :selected-section="getSelectedSection()"
                                :read-only="false"
-                               @updateEntries="updateEntries"
+                               @deleteEntry="deleteEntry"
+                               @updateEntry="updateEntry"
                 />
             </div>
         </div>
@@ -111,19 +112,20 @@ import Search from '@/ui/components/search.vue';
 import SearchResults from './SearchResults.vue';
 import Sidebar from './Sidebar.vue';
 import { clearDefaultNotebook, getDefaultNotebook, setDefaultNotebook, setDefaultNotebookSection, setDefaultNotebookPage } from '../utils/notebook-storage';
-import { addNotebookEntry, createNewEmbed, getNotebookEntries, mutateObject } from '../utils/notebook-entries';
+import { addNotebookEntry, createNewEmbed, getEntryPosById, getNotebookEntries, mutateObject } from '../utils/notebook-entries';
 import objectUtils from 'objectUtils';
 
 import { throttle } from 'lodash';
+import objectLink from '../../../ui/mixins/object-link';
 
 export default {
-    inject: ['openmct', 'domainObject', 'snapshotContainer'],
     components: {
         NotebookEntry,
         Search,
         SearchResults,
         Sidebar
     },
+    inject: ['openmct', 'domainObject', 'snapshotContainer'],
     data() {
         return {
             defaultPageId: getDefaultNotebook() ? getDefaultNotebook().page.id : '',
@@ -182,7 +184,9 @@ export default {
     mounted() {
         this.unlisten = this.openmct.objects.observe(this.internalDomainObject, '*', this.updateInternalDomainObject);
         this.formatSidebar();
+
         window.addEventListener('orientationchange', this.formatSidebar);
+        window.addEventListener("hashchange", this.navigateToSectionPage, false);
 
         this.navigateToSectionPage();
     },
@@ -190,6 +194,9 @@ export default {
         if (this.unlisten) {
             this.unlisten();
         }
+
+        window.removeEventListener('orientationchange', this.formatSidebar);
+        window.removeEventListener("hashchange", this.navigateToSectionPage);
     },
     updated: function () {
         this.$nextTick(() => {
@@ -226,18 +233,49 @@ export default {
         createNotebookStorageObject() {
             const notebookMeta = {
                 name: this.internalDomainObject.name,
-                identifier: this.internalDomainObject.identifier
+                identifier: this.internalDomainObject.identifier,
+                link: this.getLinktoNotebook()
             };
             const page = this.getSelectedPage();
             const section = this.getSelectedSection();
 
             return {
-                domainObject: this.internalDomainObject,
                 notebookMeta,
-                section,
+                page,
-                page
+                section
             };
         },
+        deleteEntry(entryId) {
+            const self = this;
+            const entryPos = getEntryPosById(entryId, this.internalDomainObject, this.selectedSection, this.selectedPage);
+            if (entryPos === -1) {
+                this.openmct.notifications.alert('Warning: unable to delete entry');
+                console.error(`unable to delete entry ${entryId} from section ${this.selectedSection}, page ${this.selectedPage}`);
+
+                return;
+            }
+
+            const dialog = this.openmct.overlays.dialog({
+                iconClass: 'alert',
+                message: 'This action will permanently delete this entry. Do you wish to continue?',
+                buttons: [
+                    {
+                        label: "Ok",
+                        emphasis: true,
+                        callback: () => {
+                            const entries = getNotebookEntries(self.internalDomainObject, self.selectedSection, self.selectedPage);
+                            entries.splice(entryPos, 1);
+                            self.updateEntries(entries);
+                            dialog.dismiss();
+                        }
+                    },
+                    {
+                        label: "Cancel",
+                        callback: () => dialog.dismiss()
+                    }
+                ]
+            });
+        },
         dragOver(event) {
             event.preventDefault();
             event.dataTransfer.dropEffect = "copy";
@@ -311,6 +349,20 @@ export default {
 
             return this.openmct.objects.get(oldNotebookStorage.notebookMeta.identifier);
         },
+        getLinktoNotebook() {
+            const objectPath = this.openmct.router.path;
+            const link = objectLink.computed.objectLink.call({
+                objectPath,
+                openmct: this.openmct
+            });
+
+            const selectedSection = this.selectedSection;
+            const selectedPage = this.selectedPage;
+            const sectionId = selectedSection ? selectedSection.id : '';
+            const pageId = selectedPage ? selectedPage.id : '';
+
+            return `${link}?sectionId=${sectionId}&pageId=${pageId}`;
+        },
         getPage(section, id) {
             return section.pages.find(p => p.id === id);
         },
@@ -395,6 +447,12 @@ export default {
                 return s;
             });
 
+            const selectedSectionId = this.selectedSection && this.selectedSection.id;
+            const selectedPageId = this.selectedPage && this.selectedPage.id;
+            if (selectedPageId === pageId && selectedSectionId === sectionId) {
+                return;
+            }
+
             this.sectionsChanged({ sections });
         },
         newEntry(embed = null) {
@@ -442,10 +500,10 @@ export default {
         async updateDefaultNotebook(notebookStorage) {
             const defaultNotebookObject = await this.getDefaultNotebookObject();
             if (!defaultNotebookObject) {
-                setDefaultNotebook(this.openmct, notebookStorage);
+                setDefaultNotebook(this.openmct, notebookStorage, this.internalDomainObject);
             } else if (objectUtils.makeKeyString(defaultNotebookObject.identifier) !== objectUtils.makeKeyString(notebookStorage.notebookMeta.identifier)) {
                 this.removeDefaultClass(defaultNotebookObject);
-                setDefaultNotebook(this.openmct, notebookStorage);
+                setDefaultNotebook(this.openmct, notebookStorage, this.internalDomainObject);
             }
 
             if (this.defaultSectionId && this.defaultSectionId.length === 0 || this.defaultSectionId !== notebookStorage.section.id) {
@@ -514,6 +572,13 @@ export default {
 
             setDefaultNotebookSection(section);
         },
+        updateEntry(entry) {
+            const entries = getNotebookEntries(this.internalDomainObject, this.selectedSection, this.selectedPage);
+            const entryPos = getEntryPosById(entry.id, this.internalDomainObject, this.selectedSection, this.selectedPage);
+            entries[entryPos] = entry;
+
+            this.updateEntries(entries);
+        },
         updateEntries(entries) {
             const configuration = this.internalDomainObject.configuration;
             const notebookEntries = configuration.entries || {};

src/plugins/notebook/components/NotebookEmbed.vue

@@ -33,10 +33,10 @@ import SnapshotTemplate from './snapshot-template.html';
 import Vue from 'vue';
 
 export default {
-    inject: ['openmct'],
     components: {
         PopupMenu
     },
+    inject: ['openmct'],
     props: {
         embed: {
             type: Object,

src/plugins/notebook/components/NotebookEntry.vue

@@ -12,11 +12,15 @@
         <div class="c-ne__content">
             <div :id="entry.id"
                  class="c-ne__text"
-                 :class="{'c-ne__input' : !readOnly }"
+                 tabindex="0"
+                 :class="{ 'c-ne__input' : !readOnly }"
                  :contenteditable="!readOnly"
-                 @blur="updateEntryValue($event, entry.id)"
+                 @blur="updateEntryValue($event)"
-                 @focus="updateCurrentEntryValue($event, entry.id)"
+                 @keydown.enter.exact.prevent
-            >{{ entry.text }}</div>
+                 @keyup.enter.exact.prevent="forceBlur($event)"
+                 v-text="entry.text"
+            >
+            </div>
             <div class="c-snapshots c-ne__embeds">
                 <NotebookEmbed v-for="embed in entry.embeds"
                                :key="embed.id"
@@ -33,6 +37,7 @@
     >
         <button class="c-icon-button c-icon-button--major icon-trash"
                 title="Delete this entry"
+                tabindex="-1"
                 @click="deleteEntry"
         >
         </button>
@@ -57,14 +62,14 @@
 
 <script>
 import NotebookEmbed from './NotebookEmbed.vue';
-import { createNewEmbed, getEntryPosById, getNotebookEntries } from '../utils/notebook-entries';
+import { createNewEmbed } from '../utils/notebook-entries';
 import Moment from 'moment';
 
 export default {
-    inject: ['openmct', 'snapshotContainer'],
     components: {
         NotebookEmbed
     },
+    inject: ['openmct', 'snapshotContainer'],
     props: {
         domainObject: {
             type: Object,
@@ -103,11 +108,6 @@ export default {
             }
         }
     },
-    data() {
-        return {
-            currentEntryValue: ''
-        };
-    },
     computed: {
         createdOnDate() {
             return this.formatTime(this.entry.createdOn, 'YYYY-MM-DD');
@@ -117,10 +117,20 @@ export default {
         }
     },
     mounted() {
-        this.updateEntries = this.updateEntries.bind(this);
         this.dropOnEntry = this.dropOnEntry.bind(this);
     },
     methods: {
+        addNewEmbed(objectPath) {
+            const bounds = this.openmct.time.bounds();
+            const snapshotMeta = {
+                bounds,
+                link: null,
+                objectPath,
+                openmct: this.openmct
+            };
+            const newEmbed = createNewEmbed(snapshotMeta);
+            this.entry.embeds.push(newEmbed);
+        },
         cancelEditMode(event) {
             const isEditing = this.openmct.editor.isEditing();
             if (isEditing) {
@@ -132,63 +142,23 @@ export default {
             event.dataTransfer.dropEffect = "copy";
         },
         deleteEntry() {
-            const self = this;
+            this.$emit('deleteEntry', this.entry.id);
-            const entryPosById = self.entryPosById(self.entry.id);
-            if (entryPosById === -1) {
-                return;
-            }
-
-            const dialog = this.openmct.overlays.dialog({
-                iconClass: 'alert',
-                message: 'This action will permanently delete this entry. Do you wish to continue?',
-                buttons: [
-                    {
-                        label: "Ok",
-                        emphasis: true,
-                        callback: () => {
-                            const entries = getNotebookEntries(self.domainObject, self.selectedSection, self.selectedPage);
-                            entries.splice(entryPosById, 1);
-                            self.updateEntries(entries);
-                            dialog.dismiss();
-                        }
-                    },
-                    {
-                        label: "Cancel",
-                        callback: () => {
-                            dialog.dismiss();
-                        }
-                    }
-                ]
-            });
         },
         dropOnEntry($event) {
             event.stopImmediatePropagation();
 
             const snapshotId = $event.dataTransfer.getData('openmct/snapshot/id');
             if (snapshotId.length) {
-                this.moveSnapshot(snapshotId);
+                const snapshot = this.snapshotContainer.getSnapshot(snapshotId);
-
+                this.snapshotContainer.removeSnapshot(snapshotId);
-                return;
+                this.entry.embeds.push(snapshot);
+            } else {
+                const data = $event.dataTransfer.getData('openmct/domain-object-path');
+                const objectPath = JSON.parse(data);
+                this.addNewEmbed(objectPath);
             }
 
-            const data = $event.dataTransfer.getData('openmct/domain-object-path');
+            this.$emit('updateEntry', this.entry);
-            const objectPath = JSON.parse(data);
-            const entryPos = this.entryPosById(this.entry.id);
-            const bounds = this.openmct.time.bounds();
-            const snapshotMeta = {
-                bounds,
-                link: null,
-                objectPath,
-                openmct: this.openmct
-            };
-            const newEmbed = createNewEmbed(snapshotMeta);
-            const entries = getNotebookEntries(this.domainObject, this.selectedSection, this.selectedPage);
-            const currentEntryEmbeds = entries[entryPos].embeds;
-            currentEntryEmbeds.push(newEmbed);
-            this.updateEntries(entries);
-        },
-        entryPosById(entryId) {
-            return getEntryPosById(entryId, this.domainObject, this.selectedSection, this.selectedPage);
         },
         findPositionInArray(array, id) {
             let position = -1;
@@ -203,15 +173,12 @@ export default {
 
             return position;
         },
+        forceBlur(event) {
+            event.target.blur();
+        },
         formatTime(unixTime, timeFormat) {
             return Moment.utc(unixTime).format(timeFormat);
         },
-        moveSnapshot(snapshotId) {
-            const snapshot = this.snapshotContainer.getSnapshot(snapshotId);
-            this.entry.embeds.push(snapshot);
-            this.updateEntry(this.entry);
-            this.snapshotContainer.removeSnapshot(snapshotId);
-        },
         navigateToPage() {
             this.$emit('changeSectionPage', {
                 sectionId: this.result.section.id,
@@ -227,15 +194,8 @@ export default {
         removeEmbed(id) {
             const embedPosition = this.findPositionInArray(this.entry.embeds, id);
             this.entry.embeds.splice(embedPosition, 1);
-            this.updateEntry(this.entry);
-        },
-        updateCurrentEntryValue($event) {
-            if (this.readOnly) {
-                return;
-            }
 
-            const target = $event.target;
+            this.$emit('updateEntry', this.entry);
-            this.currentEntryValue = target ? target.textContent : '';
         },
         updateEmbed(newEmbed) {
             this.entry.embeds.some(e => {
@@ -247,44 +207,14 @@ export default {
                 return found;
             });
 
-            this.updateEntry(this.entry);
+            this.$emit('updateEntry', this.entry);
         },
-        updateEntry(newEntry) {
+        updateEntryValue($event) {
-            const entries = getNotebookEntries(this.domainObject, this.selectedSection, this.selectedPage);
+            const value = $event.target.innerText;
-            entries.some(entry => {
+            if (value !== this.entry.text && value.match(/\S/)) {
-                const found = (entry.id === newEntry.id);
+                this.entry.text = value;
-                if (found) {
+                this.$emit('updateEntry', this.entry);
-                    entry = newEntry;
-                }
-
-                return found;
-            });
-
-            this.updateEntries(entries);
-        },
-        updateEntryValue($event, entryId) {
-            if (!this.domainObject || !this.selectedSection || !this.selectedPage) {
-                return;
             }
-
-            const target = $event.target;
-            if (!target) {
-                return;
-            }
-
-            const entryPos = this.entryPosById(entryId);
-            const value = target.textContent.trim();
-            if (this.currentEntryValue !== value) {
-                target.textContent = value;
-
-                const entries = getNotebookEntries(this.domainObject, this.selectedSection, this.selectedPage);
-                entries[entryPos].text = value;
-
-                this.updateEntries(entries);
-            }
-        },
-        updateEntries(entries) {
-            this.$emit('updateEntries', entries);
         }
     }
 };

src/plugins/notebook/components/NotebookMenuSwitcher.vue

@@ -44,38 +44,46 @@ export default {
     },
     data() {
         return {
-            notebookSnapshot: null,
+            notebookSnapshot: undefined,
             notebookTypes: []
         };
     },
     mounted() {
         validateNotebookStorageObject();
+        this.getDefaultNotebookObject();
 
         this.notebookSnapshot = new Snapshot(this.openmct);
         this.setDefaultNotebookStatus();
     },
     methods: {
-        showMenu(event) {
+        async getDefaultNotebookObject() {
-            const notebookTypes = [];
             const defaultNotebook = getDefaultNotebook();
+            const defaultNotebookObject = defaultNotebook && await this.openmct.objects.get(defaultNotebook.notebookMeta.identifier);
+
+            return defaultNotebookObject;
+        },
+        async showMenu(event) {
+            const notebookTypes = [];
             const elementBoundingClientRect = this.$el.getBoundingClientRect();
             const x = elementBoundingClientRect.x;
             const y = elementBoundingClientRect.y + elementBoundingClientRect.height;
 
-            if (defaultNotebook) {
+            const defaultNotebookObject = await this.getDefaultNotebookObject();
-                const domainObject = defaultNotebook.domainObject;
+            if (defaultNotebookObject) {
+                const name = defaultNotebookObject.name;
 
-                if (domainObject.location) {
+                const defaultNotebook = getDefaultNotebook();
-                    const defaultPath = `${domainObject.name} - ${defaultNotebook.section.name} - ${defaultNotebook.page.name}`;
+                const sectionName = defaultNotebook.section.name;
+                const pageName = defaultNotebook.page.name;
+                const defaultPath = `${name} - ${sectionName} - ${pageName}`;
 
-                    notebookTypes.push({
+                notebookTypes.push({
-                        cssClass: 'icon-notebook',
+                    cssClass: 'icon-notebook',
-                        name: `Save to Notebook ${defaultPath}`,
+                    name: `Save to Notebook ${defaultPath}`,
-                        callBack: () => {
+                    callBack: () => {
-                            return this.snapshot(NOTEBOOK_DEFAULT);
+                        return this.snapshot(NOTEBOOK_DEFAULT);
-                        }
+                    }
-                    });
+                });
-                }
             }
 
             notebookTypes.push({

src/plugins/notebook/components/NotebookSnapshotContainer.vue

@@ -56,11 +56,11 @@ import { NOTEBOOK_SNAPSHOT_MAX_COUNT } from '../snapshot-container';
 import { EVENT_SNAPSHOTS_UPDATED } from '../notebook-constants';
 
 export default {
-    inject: ['openmct', 'snapshotContainer'],
     components: {
         NotebookEmbed,
         PopupMenu
     },
+    inject: ['openmct', 'snapshotContainer'],
     props: {
         toggleSnapshot: {
             type: Function,

src/plugins/notebook/components/NotebookSnapshotIndicator.vue

@@ -69,14 +69,14 @@ export default {
             const divElement = document.querySelector('.l-shell__drawer div');
 
             this.component = new Vue({
-                provide: {
-                    openmct,
-                    snapshotContainer
-                },
                 el: divElement,
                 components: {
                     SnapshotContainerComponent
                 },
+                provide: {
+                    openmct,
+                    snapshotContainer
+                },
                 data() {
                     return {
                         toggleSnapshot

src/plugins/notebook/components/PageCollection.vue

@@ -22,10 +22,10 @@ import { getDefaultNotebook } from '../utils/notebook-storage';
 import Page from './PageComponent.vue';
 
 export default {
-    inject: ['openmct'],
     components: {
         Page
     },
+    inject: ['openmct'],
     props: {
         defaultPageId: {
             type: String,

src/plugins/notebook/components/PageComponent.vue

@@ -18,10 +18,10 @@ import PopupMenu from './PopupMenu.vue';
 import RemoveDialog from '../utils/removeDialog';
 
 export default {
-    inject: ['openmct'],
     components: {
         PopupMenu
     },
+    inject: ['openmct'],
     props: {
         defaultPageId: {
             type: String,

src/plugins/notebook/components/SearchResults.vue

@@ -21,10 +21,10 @@
 import NotebookEntry from './NotebookEntry.vue';
 
 export default {
-    inject: ['openmct', 'snapshotContainer'],
     components: {
         NotebookEntry
     },
+    inject: ['openmct', 'snapshotContainer'],
     props: {
         domainObject: {
             type: Object,

src/plugins/notebook/components/SectionCollection.vue

@@ -22,10 +22,10 @@ import { getDefaultNotebook } from '../utils/notebook-storage';
 import sectionComponent from './SectionComponent.vue';
 
 export default {
-    inject: ['openmct'],
     components: {
         sectionComponent
     },
+    inject: ['openmct'],
     props: {
         defaultSectionId: {
             type: String,

src/plugins/notebook/components/SectionComponent.vue

@@ -21,10 +21,10 @@ import PopupMenu from './PopupMenu.vue';
 import RemoveDialog from '../utils/removeDialog';
 
 export default {
-    inject: ['openmct'],
     components: {
         PopupMenu
     },
+    inject: ['openmct'],
     props: {
         defaultSectionId: {
             type: String,

src/plugins/notebook/components/Sidebar.vue

@@ -61,11 +61,11 @@ import PageCollection from './PageCollection.vue';
 import uuid from 'uuid';
 
 export default {
-    inject: ['openmct'],
     components: {
         SectionCollection,
         PageCollection
     },
+    inject: ['openmct'],
     props: {
         defaultPageId: {
             type: String,

src/plugins/notebook/plugin.js

@@ -88,13 +88,13 @@ export default function NotebookPlugin() {
 
         const snapshotContainer = new SnapshotContainer(openmct);
         const notebookSnapshotIndicator = new Vue ({
+            components: {
+                NotebookSnapshotIndicator
+            },
             provide: {
                 openmct,
                 snapshotContainer
             },
-            components: {
-                NotebookSnapshotIndicator
-            },
             template: '<NotebookSnapshotIndicator></NotebookSnapshotIndicator>'
         });
         const indicator = {

src/plugins/notebook/snapshot.js

@@ -1,5 +1,5 @@
 import { addNotebookEntry, createNewEmbed } from './utils/notebook-entries';
-import { getDefaultNotebook } from './utils/notebook-storage';
+import { getDefaultNotebook, getDefaultNotebookLink, setDefaultNotebook } from './utils/notebook-storage';
 import { NOTEBOOK_DEFAULT } from '@/plugins/notebook/notebook-constants';
 import SnapshotContainer from './snapshot-container';
 
@@ -45,12 +45,21 @@ export default class Snapshot {
     _saveToDefaultNoteBook(embed) {
         const notebookStorage = getDefaultNotebook();
         this.openmct.objects.get(notebookStorage.notebookMeta.identifier)
-            .then(domainObject => {
+            .then(async (domainObject) => {
                 addNotebookEntry(this.openmct, domainObject, notebookStorage, embed);
 
+                let link = notebookStorage.notebookMeta.link;
+
+                // Backwards compatibility fix (old notebook model without link)
+                if (!link) {
+                    link = await getDefaultNotebookLink(this.openmct, domainObject);
+                    notebookStorage.notebookMeta.link = link;
+                    setDefaultNotebook(this.openmct, notebookStorage);
+                }
+
                 const defaultPath = `${domainObject.name} - ${notebookStorage.section.name} - ${notebookStorage.page.name}`;
                 const msg = `Saved to Notebook ${defaultPath}`;
-                this._showNotification(msg);
+                this._showNotification(msg, link);
             });
     }
 
@@ -58,16 +67,29 @@ export default class Snapshot {
      * @private
      */
     _saveToNotebookSnapshots(embed) {
-        const saved = this.snapshotContainer.addSnapshot(embed);
+        this.snapshotContainer.addSnapshot(embed);
-        if (!saved) {
+    }
-            return;
+
+    _showNotification(msg, url) {
+        const options = {
+            autoDismissTimeout: 30000,
+            link: {
+                cssClass: '',
+                text: 'click to view',
+                onClick: this._navigateToNotebook(url)
+            }
+        };
+
+        this.openmct.notifications.info(msg, options);
+    }
+
+    _navigateToNotebook(url = null) {
+        if (!url) {
+            return () => {};
         }
 
-        const msg = 'Saved to Notebook Snapshots - click to view.';
+        return () => {
-        this._showNotification(msg);
+            window.location.href = window.location.origin + url;
-    }
+        };
-
-    _showNotification(msg) {
-        this.openmct.notifications.info(msg);
     }
 }

src/plugins/notebook/utils/notebook-entriesSpec.js

@@ -23,13 +23,6 @@ import * as NotebookEntries from './notebook-entries';
 import { createOpenMct, resetApplicationState } from 'utils/testing';
 
 const notebookStorage = {
-    domainObject: {
-        name: 'notebook',
-        identifier: {
-            namespace: '',
-            key: 'test-notebook'
-        }
-    },
     notebookMeta: {
         name: 'notebook',
         identifier: {
@@ -116,10 +109,30 @@ const selectedPage = {
 };
 
 let openmct;
+let mockIdentifierService;
 
 describe('Notebook Entries:', () => {
     beforeEach(done => {
         openmct = createOpenMct();
+        openmct.$injector = jasmine.createSpyObj('$injector', ['get']);
+        mockIdentifierService = jasmine.createSpyObj(
+            'identifierService',
+            ['parse']
+        );
+        mockIdentifierService.parse.and.returnValue({
+            getSpace: () => {
+                return '';
+            }
+        });
+
+        openmct.$injector.get.and.returnValue(mockIdentifierService);
+        openmct.types.addType('notebook', {
+            creatable: true
+        });
+        openmct.objects.addProvider('', jasmine.createSpyObj('mockNotebookProvider', [
+            'create',
+            'update'
+        ]));
         window.localStorage.setItem('notebook-storage', null);
 
         done();

src/plugins/notebook/utils/notebook-storage.js

@@ -1,13 +1,12 @@
+import objectUtils from 'objectUtils';
+
 const NOTEBOOK_LOCAL_STORAGE = 'notebook-storage';
-let currentNotebookObject = null;
+let currentNotebookObjectIdentifier = null;
 let unlisten = null;
 
 function defaultNotebookObjectChanged(newDomainObject) {
     if (newDomainObject.location !== null) {
-        currentNotebookObject = newDomainObject;
+        currentNotebookObjectIdentifier = newDomainObject.identifier;
-        const notebookStorage = getDefaultNotebook();
-        notebookStorage.domainObject = newDomainObject;
-        saveDefaultNotebook(notebookStorage);
 
         return;
     }
@@ -20,10 +19,9 @@ function defaultNotebookObjectChanged(newDomainObject) {
     clearDefaultNotebook();
 }
 
-function observeDefaultNotebookObject(openmct, notebookStorage) {
+function observeDefaultNotebookObject(openmct, notebookMeta, domainObject) {
-    const domainObject = notebookStorage.domainObject;
+    if (currentNotebookObjectIdentifier
-    if (currentNotebookObject
+            && objectUtils.makeKeyString(currentNotebookObjectIdentifier) === objectUtils.makeKeyString(notebookMeta.identifier)) {
-            && currentNotebookObject.identifier.key === domainObject.identifier.key) {
         return;
     }
 
@@ -32,7 +30,7 @@ function observeDefaultNotebookObject(openmct, notebookStorage) {
         unlisten = null;
     }
 
-    unlisten = openmct.objects.observe(notebookStorage.domainObject, '*', defaultNotebookObjectChanged);
+    unlisten = openmct.objects.observe(domainObject, '*', defaultNotebookObjectChanged);
 }
 
 function saveDefaultNotebook(notebookStorage) {
@@ -40,7 +38,7 @@ function saveDefaultNotebook(notebookStorage) {
 }
 
 export function clearDefaultNotebook() {
-    currentNotebookObject = null;
+    currentNotebookObjectIdentifier = null;
     window.localStorage.setItem(NOTEBOOK_LOCAL_STORAGE, null);
 }
 
@@ -50,14 +48,29 @@ export function getDefaultNotebook() {
     return JSON.parse(notebookStorage);
 }
 
-export function setDefaultNotebook(openmct, notebookStorage) {
+export async function getDefaultNotebookLink(openmct, domainObject = null) {
-    observeDefaultNotebookObject(openmct, notebookStorage);
+    if (!domainObject) {
+        return null;
+    }
+
+    const path = await openmct.objects.getOriginalPath(domainObject.identifier)
+        .then(objectPath => objectPath
+            .map(o => o && openmct.objects.makeKeyString(o.identifier))
+            .reverse()
+            .join('/')
+        );
+    const { page, section } = getDefaultNotebook();
+
+    return `#/browse/${path}?sectionId=${section.id}&pageId=${page.id}`;
+}
+
+export function setDefaultNotebook(openmct, notebookStorage, domainObject) {
+    observeDefaultNotebookObject(openmct, notebookStorage, domainObject);
     saveDefaultNotebook(notebookStorage);
 }
 
 export function setDefaultNotebookSection(section) {
     const notebookStorage = getDefaultNotebook();
-
     notebookStorage.section = section;
     saveDefaultNotebook(notebookStorage);
 }

src/plugins/notebook/utils/notebook-storageSpec.js

@@ -23,14 +23,15 @@
 import * as NotebookStorage from './notebook-storage';
 import { createOpenMct, resetApplicationState } from 'utils/testing';
 
+const domainObject = {
+    name: 'notebook',
+    identifier: {
+        namespace: '',
+        key: 'test-notebook'
+    }
+};
+
 const notebookStorage = {
-    domainObject: {
-        name: 'notebook',
-        identifier: {
-            namespace: '',
-            key: 'test-notebook'
-        }
-    },
     notebookMeta: {
         name: 'notebook',
         identifier: {
@@ -61,7 +62,10 @@ describe('Notebook Storage:', () => {
     beforeEach((done) => {
         openmct = createOpenMct();
         window.localStorage.setItem('notebook-storage', null);
-
+        openmct.objects.addProvider('', jasmine.createSpyObj('mockNotebookProvider', [
+            'create',
+            'update'
+        ]));
         done();
     });
 
@@ -82,7 +86,7 @@ describe('Notebook Storage:', () => {
     });
 
     it('has correct notebookstorage on setDefaultNotebook', () => {
-        NotebookStorage.setDefaultNotebook(openmct, notebookStorage);
+        NotebookStorage.setDefaultNotebook(openmct, notebookStorage, domainObject);
         const defaultNotebook = NotebookStorage.getDefaultNotebook();
 
         expect(JSON.stringify(defaultNotebook)).toBe(JSON.stringify(notebookStorage));
@@ -98,7 +102,7 @@ describe('Notebook Storage:', () => {
             sectionTitle: 'Section'
         };
 
-        NotebookStorage.setDefaultNotebook(openmct, notebookStorage);
+        NotebookStorage.setDefaultNotebook(openmct, notebookStorage, domainObject);
         NotebookStorage.setDefaultNotebookSection(section);
 
         const defaultNotebook = NotebookStorage.getDefaultNotebook();
@@ -115,7 +119,7 @@ describe('Notebook Storage:', () => {
             pageTitle: 'Page'
         };
 
-        NotebookStorage.setDefaultNotebook(openmct, notebookStorage);
+        NotebookStorage.setDefaultNotebook(openmct, notebookStorage, domainObject);
         NotebookStorage.setDefaultNotebookPage(page);
 
         const defaultNotebook = NotebookStorage.getDefaultNotebook();

src/plugins/notificationIndicator/components/NotificationIndicator.vue

@@ -27,10 +27,10 @@
 import NotificationsList from './NotificationsList.vue';
 
 export default {
-    inject: ['openmct'],
     components: {
         NotificationsList
     },
+    inject: ['openmct'],
     data() {
         return {
             notifications: this.openmct.notifications.notifications,

src/plugins/notificationIndicator/plugin.js

@@ -25,12 +25,12 @@ import NotificationIndicator from './components/NotificationIndicator.vue';
 export default function plugin() {
     return function install(openmct) {
         let component = new Vue ({
-            provide: {
-                openmct
-            },
             components: {
                 NotificationIndicator: NotificationIndicator
             },
+            provide: {
+                openmct
+            },
             template: '<NotificationIndicator></NotificationIndicator>'
         });
 

src/plugins/persistence/couch/CouchObjectProvider.js

@@ -25,13 +25,36 @@ import CouchObjectQueue from "./CouchObjectQueue";
 
 const REV = "_rev";
 const ID = "_id";
+const HEARTBEAT = 50000;
 
 export default class CouchObjectProvider {
-    constructor(openmct, url, namespace) {
+    // options {
+    //      url: couchdb url,
+    //      disableObserve: disable auto feed from couchdb to keep objects in sync,
+    //      filter: selector to find objects to sync in couchdb
+    //      }
+    constructor(openmct, options, namespace) {
+        options = this._normalize(options);
         this.openmct = openmct;
-        this.url = url;
+        this.url = options.url;
         this.namespace = namespace;
         this.objectQueue = {};
+        this.observeEnabled = options.disableObserve !== true;
+        this.observers = {};
+        if (this.observeEnabled) {
+            this.observeObjectChanges(options.filter);
+        }
+    }
+
+    //backwards compatibility, options used to be a url. Now it's an object
+    _normalize(options) {
+        if (typeof options === 'string') {
+            return {
+                url: options
+            };
+        }
+
+        return options;
     }
 
     request(subPath, method, value) {
@@ -102,6 +125,162 @@ export default class CouchObjectProvider {
         return this.request(identifier.key, "GET").then(this.getModel.bind(this));
     }
 
+    async getObjectsByFilter(filter) {
+        let objects = [];
+
+        let url = `${this.url}/_find`;
+        let body = {};
+
+        if (filter) {
+            body = JSON.stringify(filter);
+        }
+
+        const response = await fetch(url, {
+            method: "POST",
+            headers: {
+                "Content-Type": "application/json"
+            },
+            body
+        });
+
+        const reader = response.body.getReader();
+        let completed = false;
+
+        while (!completed) {
+            const {done, value} = await reader.read();
+            //done is true when we lose connection with the provider
+            if (done) {
+                completed = true;
+            }
+
+            if (value) {
+                let chunk = new Uint8Array(value.length);
+                chunk.set(value, 0);
+                const decodedChunk = new TextDecoder("utf-8").decode(chunk);
+                try {
+                    const json = JSON.parse(decodedChunk);
+                    if (json) {
+                        let docs = json.docs;
+                        docs.forEach(doc => {
+                            let object = this.getModel(doc);
+                            if (object) {
+                                objects.push(object);
+                            }
+                        });
+                    }
+                } catch (e) {
+                    //do nothing
+                }
+            }
+
+        }
+
+        return objects;
+    }
+
+    observe(identifier, callback) {
+        if (!this.observeEnabled) {
+            return;
+        }
+
+        const keyString = this.openmct.objects.makeKeyString(identifier);
+        this.observers[keyString] = this.observers[keyString] || [];
+        this.observers[keyString].push(callback);
+
+        return () => {
+            this.observers[keyString] = this.observers[keyString].filter(observer => observer !== callback);
+        };
+    }
+
+    abortGetChanges() {
+        if (this.controller) {
+            this.controller.abort();
+            this.controller = undefined;
+        }
+
+        return true;
+    }
+
+    async observeObjectChanges(filter) {
+        let intermediateResponse = this.getIntermediateResponse();
+
+        if (!this.observeEnabled) {
+            intermediateResponse.reject('Observe for changes is disabled');
+        }
+
+        const controller = new AbortController();
+        const signal = controller.signal;
+
+        if (this.controller) {
+            this.abortGetChanges();
+        }
+
+        this.controller = controller;
+        // feed=continuous maintains an indefinitely open connection with a keep-alive of HEARTBEAT milliseconds until this client closes the connection
+        // style=main_only returns only the current winning revision of the document
+        let url = `${this.url}/_changes?feed=continuous&style=main_only&heartbeat=${HEARTBEAT}`;
+
+        let body = {};
+        if (filter) {
+            url = `${url}&filter=_selector`;
+            body = JSON.stringify(filter);
+        }
+
+        const response = await fetch(url, {
+            method: 'POST',
+            signal,
+            headers: {
+                "Content-Type": 'application/json'
+            },
+            body
+        });
+        const reader = response.body.getReader();
+        let completed = false;
+
+        while (!completed) {
+            const {done, value} = await reader.read();
+            //done is true when we lose connection with the provider
+            if (done) {
+                completed = true;
+            }
+
+            if (value) {
+                let chunk = new Uint8Array(value.length);
+                chunk.set(value, 0);
+                const decodedChunk = new TextDecoder("utf-8").decode(chunk).split('\n');
+                if (decodedChunk.length && decodedChunk[decodedChunk.length - 1] === '') {
+                    decodedChunk.forEach((doc, index) => {
+                        try {
+                            const object = JSON.parse(doc);
+                            object.identifier = {
+                                namespace: this.namespace,
+                                key: object.id
+                            };
+                            let keyString = this.openmct.objects.makeKeyString(object.identifier);
+                            let observersForObject = this.observers[keyString];
+
+                            if (observersForObject) {
+                                observersForObject.forEach(async (observer) => {
+                                    const updatedObject = await this.get(object.identifier);
+                                    observer(updatedObject);
+                                });
+                            }
+                        } catch (e) {
+                            //do nothing;
+                        }
+                    });
+                }
+            }
+
+        }
+
+        //We're done receiving from the provider. No more chunks.
+        intermediateResponse.resolve(true);
+
+        return intermediateResponse.promise;
+
+    }
+
     getIntermediateResponse() {
         let intermediateResponse = {};
         intermediateResponse.promise = new Promise(function (resolve, reject) {

src/plugins/persistence/couch/plugin.js

@@ -24,8 +24,9 @@ import CouchObjectProvider from './CouchObjectProvider';
 const NAMESPACE = '';
 const PERSISTENCE_SPACE = 'mct';
 
-export default function CouchPlugin(url) {
+export default function CouchPlugin(options) {
     return function install(openmct) {
-        openmct.objects.addProvider(PERSISTENCE_SPACE, new CouchObjectProvider(openmct, url, NAMESPACE));
+        install.couchProvider = new CouchObjectProvider(openmct, options, NAMESPACE);
+        openmct.objects.addProvider(PERSISTENCE_SPACE, install.couchProvider);
     };
 }

src/plugins/persistence/couch/pluginSpec.js

@@ -32,17 +32,43 @@ describe('the plugin', () => {
     let child;
     let provider;
     let testPath = '/test/db';
+    let options;
+    let mockIdentifierService;
     let mockDomainObject;
 
     beforeEach((done) => {
         mockDomainObject = {
             identifier: {
-                namespace: 'mct',
+                namespace: '',
                 key: 'some-value'
-            }
+            },
+            type: 'mock-type'
+        };
+        options = {
+            url: testPath,
+            filter: {},
+            disableObserve: true
         };
         openmct = createOpenMct(false);
-        openmct.install(new CouchPlugin(testPath));
+
+        spyOnBuiltins(['fetch'], window);
+
+        openmct.$injector = jasmine.createSpyObj('$injector', ['get']);
+        mockIdentifierService = jasmine.createSpyObj(
+            'identifierService',
+            ['parse']
+        );
+        mockIdentifierService.parse.and.returnValue({
+            getSpace: () => {
+                return 'mct';
+            }
+        });
+
+        openmct.$injector.get.and.returnValue(mockIdentifierService);
+
+        openmct.install(new CouchPlugin(options));
+
+        openmct.types.addType('mock-type', {creatable: true});
 
         element = document.createElement('div');
         child = document.createElement('div');
@@ -55,62 +81,67 @@ describe('the plugin', () => {
         spyOn(provider, 'get').and.callThrough();
         spyOn(provider, 'create').and.callThrough();
         spyOn(provider, 'update').and.callThrough();
-
-        spyOnBuiltins(['fetch'], window);
-        fetch.and.returnValue(Promise.resolve({
-            json: () => {
-                return {
-                    ok: true,
-                    _id: 'some-value',
-                    _rev: 1,
-                    model: {}
-                };
-            }
-        }));
     });
 
     afterEach(() => {
         return resetApplicationState(openmct);
     });
 
-    it('gets an object', () => {
+    describe('the provider', () => {
-        openmct.objects.get(mockDomainObject.identifier).then((result) => {
+        let mockPromise;
-            expect(result.identifier.key).toEqual(mockDomainObject.identifier.key);
+        beforeEach(() => {
+            mockPromise = Promise.resolve({
+                json: () => {
+                    return {
+                        ok: true,
+                        _id: 'some-value',
+                        _rev: 1,
+                        model: {}
+                    };
+                }
+            });
+            fetch.and.returnValue(mockPromise);
         });
-    });
 
-    it('creates an object', () => {
+        it('gets an object', () => {
-        openmct.objects.save(mockDomainObject).then((result) => {
+            openmct.objects.get(mockDomainObject.identifier).then((result) => {
-            expect(provider.create).toHaveBeenCalled();
+                expect(result.identifier.key).toEqual(mockDomainObject.identifier.key);
-            expect(result).toBeTrue();
-        });
-    });
-
-    it('updates an object', () => {
-        openmct.objects.save(mockDomainObject).then((result) => {
-            expect(result).toBeTrue();
-            expect(provider.create).toHaveBeenCalled();
-            openmct.objects.save(mockDomainObject).then((updatedResult) => {
-                expect(updatedResult).toBeTrue();
-                expect(provider.update).toHaveBeenCalled();
             });
         });
-    });
 
-    it('updates queued objects', () => {
+        it('creates an object', () => {
-        let couchProvider = new CouchObjectProvider(openmct, 'http://localhost', '');
+            openmct.objects.save(mockDomainObject).then((result) => {
-        let intermediateResponse = couchProvider.getIntermediateResponse();
+                expect(provider.create).toHaveBeenCalled();
-        spyOn(couchProvider, 'updateQueued');
+                expect(result).toBeTrue();
-        couchProvider.enqueueObject(mockDomainObject.identifier.key, mockDomainObject, intermediateResponse);
+            });
-        couchProvider.objectQueue[mockDomainObject.identifier.key].updateRevision(1);
+        });
-        couchProvider.update(mockDomainObject);
-        expect(couchProvider.objectQueue[mockDomainObject.identifier.key].hasNext()).toBe(2);
-        couchProvider.checkResponse({
-            ok: true,
-            rev: 2,
-            id: mockDomainObject.identifier.key
-        }, intermediateResponse);
 
-        expect(couchProvider.updateQueued).toHaveBeenCalledTimes(2);
+        it('updates an object', () => {
+            openmct.objects.save(mockDomainObject).then((result) => {
+                expect(result).toBeTrue();
+                expect(provider.create).toHaveBeenCalled();
+                openmct.objects.save(mockDomainObject).then((updatedResult) => {
+                    expect(updatedResult).toBeTrue();
+                    expect(provider.update).toHaveBeenCalled();
+                });
+            });
+        });
+
+        it('updates queued objects', () => {
+            let couchProvider = new CouchObjectProvider(openmct, options, '');
+            let intermediateResponse = couchProvider.getIntermediateResponse();
+            spyOn(couchProvider, 'updateQueued');
+            couchProvider.enqueueObject(mockDomainObject.identifier.key, mockDomainObject, intermediateResponse);
+            couchProvider.objectQueue[mockDomainObject.identifier.key].updateRevision(1);
+            couchProvider.update(mockDomainObject);
+            expect(couchProvider.objectQueue[mockDomainObject.identifier.key].hasNext()).toBe(2);
+            couchProvider.checkResponse({
+                ok: true,
+                rev: 2,
+                id: mockDomainObject.identifier.key
+            }, intermediateResponse);
+
+            expect(couchProvider.updateQueued).toHaveBeenCalledTimes(2);
+        });
     });
 });

src/plugins/plot/src/inspector/PlotModelFormController.js

@@ -136,7 +136,7 @@ define([
             };
         }
 
-        if (objectPath && !_.isFunction(objectPath)) {
+        if (objectPath && (typeof objectPath !== "function")) {
             const staticObjectPath = objectPath;
             objectPath = function () {
                 return staticObjectPath;

src/plugins/plot/vue/overlayPlot/OverlayPlotViewProvider.js

@@ -0,0 +1,63 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import Plot from '../single/Plot.vue';
+import Vue from 'vue';
+
+export default function OverlayPlotViewProvider(openmct) {
+    return {
+        key: 'plot-overlay',
+        name: 'Overlay Plot',
+        cssClass: 'icon-telemetry',
+        canView(domainObject) {
+            return domainObject.type === 'telemetry.plot.overlay';
+        },
+
+        canEdit(domainObject) {
+            return domainObject.type === 'telemetry.plot.overlay';
+        },
+
+        view: function (domainObject) {
+            let component;
+
+            return {
+                show: function (element) {
+                    component = new Vue({
+                        el: element,
+                        components: {
+                            Plot
+                        },
+                        provide: {
+                            openmct,
+                            domainObject
+                        },
+                        template: '<plot></plot>'
+                    });
+                },
+                destroy: function () {
+                    component.$destroy();
+                    component = undefined;
+                }
+            };
+        }
+    };
+}

src/plugins/plot/vue/single/LinearScale.js

@@ -0,0 +1,83 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+/*jscs:disable disallowDanglingUnderscores */
+/**
+ * A scale has an input domain and an output range.  It provides functions
+ * `scale` return the range value associated with a domain value.
+ * `invert` return the domain value associated with range value.
+ */
+
+class LinearScale {
+    constructor(domain) {
+        this.domain(domain);
+    }
+
+    domain(newDomain) {
+        if (newDomain) {
+            this._domain = newDomain;
+            this._domainDenominator = newDomain.max - newDomain.min;
+        }
+
+        return this._domain;
+    }
+
+    range(newRange) {
+        if (newRange) {
+            this._range = newRange;
+            this._rangeDenominator = newRange.max - newRange.min;
+        }
+
+        return this._range;
+    }
+
+    scale(domainValue) {
+        if (!this._domain || !this._range) {
+            return;
+        }
+
+        const domainOffset = domainValue - this._domain.min;
+        const rangeFraction = domainOffset - this._domainDenominator;
+        const rangeOffset = rangeFraction * this._rangeDenominator;
+        const rangeValue = rangeOffset + this._range.min;
+
+        return rangeValue;
+    }
+
+    invert(rangeValue) {
+        if (!this._domain || !this._range) {
+            return;
+        }
+
+        const rangeOffset = rangeValue - this._range.min;
+        const domainFraction = rangeOffset / this._rangeDenominator;
+        const domainOffset = domainFraction * this._domainDenominator;
+        const domainValue = domainOffset + this._domain.min;
+
+        return domainValue;
+    }
+}
+
+export default LinearScale;
+
+/**
+ *
+ */

src/plugins/plot/vue/single/MctPlot.vue

@@ -0,0 +1,892 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, 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.
+-->
+<template>
+<div v-if="loaded"
+     class="gl-plot"
+     :class="[plotLegendExpandedStateClass, plotLegendPositionClass]"
+>
+    <plot-legend :cursor-locked="!!lockHighlightPoint"
+                 :series="config.series.models"
+                 :highlights="highlights"
+                 :legend="config.legend"
+    />
+    <div class="plot-wrapper-axis-and-display-area flex-elem grows">
+        <y-axis v-if="config.series.models.length > 0"
+                :tick-width="tickWidth"
+                :single-series="config.series.models.length === 1"
+                :series-model="config.series.models[0]"
+                @yKeyChanged="setYAxisKey"
+                @tickWidthChanged="onTickWidthChange"
+        />
+        <div class="gl-plot-wrapper-display-area-and-x-axis"
+             :style="{
+                 left: (tickWidth + 20) + 'px'
+             }"
+        >
+
+            <div class="gl-plot-display-area has-local-controls has-cursor-guides">
+                <div class="l-state-indicators">
+                    <span class="l-state-indicators__alert-no-lad t-object-alert t-alert-unsynced icon-alert-triangle"
+                          title="This plot is not currently displaying the latest data. Reset pan/zoom to view latest data."
+                    ></span>
+                </div>
+
+                <mct-ticks v-show="gridLines"
+                           :axis-type="'xAxis'"
+                           :position="'right'"
+                           @plotTickWidth="onTickWidthChange"
+                />
+
+                <mct-ticks v-show="gridLines"
+                           :axis-type="'yAxis'"
+                           :position="'bottom'"
+                           @plotTickWidth="onTickWidthChange"
+                />
+
+                <div ref="chartContainer"
+                     class="gl-plot-chart-wrapper"
+                >
+                    <mct-chart :series-config="config"
+                               :rectangles="rectangles"
+                               :highlights="highlights"
+                               @plotReinitializeCanvas="initCanvas"
+                    />
+                </div>
+
+                <div class="gl-plot__local-controls h-local-controls h-local-controls--overlay-content c-local-controls--show-on-hover">
+                    <div class="c-button-set c-button-set--strip-h">
+                        <button class="c-button icon-minus"
+                                title="Zoom out"
+                                @click="zoom('out', 0.2)"
+                        >
+                        </button>
+                        <button class="c-button icon-plus"
+                                title="Zoom in"
+                                @click="zoom('in', 0.2)"
+                        >
+                        </button>
+                    </div>
+                    <div class="c-button-set c-button-set--strip-h"
+                         :disabled="!plotHistory.length"
+                    >
+                        <button class="c-button icon-arrow-left"
+                                title="Restore previous pan/zoom"
+                                @click="back()"
+                        >
+                        </button>
+                        <button class="c-button icon-reset"
+                                title="Reset pan/zoom"
+                                @click="clear()"
+                        >
+                        </button>
+                    </div>
+                </div>
+
+                <!--Cursor guides-->
+                <div v-show="cursorGuide"
+                     ref="cursorGuideVertical"
+                     class="c-cursor-guide--v js-cursor-guide--v"
+                >
+                </div>
+                <div v-show="cursorGuide"
+                     ref="cursorGuideHorizontal"
+                     class="c-cursor-guide--h js-cursor-guide--h"
+                >
+                </div>
+            </div>
+            <x-axis v-if="config.series.models.length > 0"
+                    :series-model="config.series.models[0]"
+            />
+
+        </div>
+    </div>
+
+</div>
+</template>
+
+<script>
+
+import eventHelpers from './lib/eventHelpers';
+import LinearScale from "./LinearScale";
+import PlotConfigurationModel from './configuration/PlotConfigurationModel';
+import configStore from './configuration/configStore';
+
+import PlotLegend from "./legend/PlotLegend.vue";
+import MctTicks from "./MctTicks.vue";
+import MctChart from "./chart/MctChart.vue";
+import XAxis from "./axis/XAxis.vue";
+import YAxis from "./axis/YAxis.vue";
+
+export default {
+    components: {
+        XAxis,
+        YAxis,
+        PlotLegend,
+        MctTicks,
+        MctChart
+    },
+    inject: ['openmct', 'domainObject'],
+    props: {
+        gridLines: {
+            type: Boolean,
+            default() {
+                return true;
+            }
+        },
+        cursorGuide: {
+            type: Boolean,
+            default() {
+                return true;
+            }
+        },
+        plotTickWidth: {
+            type: Number,
+            default() {
+                return 0;
+            }
+        }
+    },
+    data() {
+        return {
+            highlights: [],
+            lockHighlightPoint: false,
+            tickWidth: 0,
+            yKeyOptions: [],
+            yAxisLabel: '',
+            rectangles: [],
+            plotHistory: [],
+            selectedXKeyOption: {},
+            xKeyOptions: [],
+            config: {},
+            pending: 0,
+            loaded: false
+        };
+    },
+    computed: {
+        plotLegendPositionClass() {
+            return `plot-legend-${this.config.legend.get('position')}`;
+        },
+        plotLegendExpandedStateClass() {
+            if (this.config.legend.get('expanded')) {
+                return 'plot-legend-expanded';
+            } else {
+                return 'plot-legend-collapsed';
+            }
+        }
+    },
+    watch: {
+        plotTickWidth(newTickWidth) {
+            this.onTickWidthChange(newTickWidth, true);
+        },
+        gridLines(newGridLines) {
+            this.setGridLinesVisibility(newGridLines);
+        },
+        cursorGuide(newCursorGuide) {
+            this.setCursorGuideVisibility(newCursorGuide);
+        }
+    },
+    mounted() {
+        eventHelpers.extend(this);
+
+        this.config = this.getConfig();
+
+        this.listenTo(this.config.series, 'add', this.addSeries, this);
+        this.listenTo(this.config.series, 'remove', this.removeSeries, this);
+
+        this.config.series.models.forEach(this.addSeries, this);
+
+        this.filterObserver = this.openmct.objects.observe(
+            this.domainObject,
+            'configuration.filters',
+            this.updateFiltersAndResubscribe
+        );
+
+        this.openmct.objectViews.on('clearData', this.clearData);
+        this.followTimeConductor();
+
+        this.loaded = true;
+
+        //We're referencing the canvas elements from the mct-chart in the initialize method.
+        // So we need $nextTick to ensure the component is fully mounted before we can initialize stuff.
+        this.$nextTick(this.initialize);
+
+    },
+    beforeDestroy() {
+        this.destroy();
+    },
+    methods: {
+        followTimeConductor() {
+            this.openmct.time.on('bounds', this.updateDisplayBounds);
+            this.synchronized(true);
+        },
+        getConfig() {
+            const configId = this.openmct.objects.makeKeyString(this.domainObject.identifier);
+            let config = configStore.get(configId);
+            if (!config) {
+                config = new PlotConfigurationModel({
+                    id: configId,
+                    domainObject: this.domainObject,
+                    openmct: this.openmct
+                });
+                configStore.add(configId, config);
+            }
+
+            return config;
+        },
+        addSeries(series) {
+            this.listenTo(series, 'change:xKey', (xKey) => {
+                this.setDisplayRange(series, xKey);
+            }, this);
+            this.listenTo(series, 'change:yKey', () => {
+                this.loadSeriesData(series);
+            }, this);
+
+            this.listenTo(series, 'change:interpolate', () => {
+                this.loadSeriesData(series);
+            }, this);
+
+            this.loadSeriesData(series);
+        },
+
+        removeSeries(plotSeries) {
+            this.stopListening(plotSeries);
+        },
+
+        loadSeriesData(series) {
+            if (this.$parent.$refs.plotWrapper.offsetWidth === 0) {
+                this.scheduleLoad(series);
+
+                return;
+            }
+
+            this.startLoading();
+            const options = {
+                size: this.$parent.$refs.plotWrapper.offsetWidth,
+                domain: this.config.xAxis.get('key')
+            };
+
+            series.load(options)
+                .then(this.stopLoading.bind(this));
+        },
+
+        loadMoreData(range, purge) {
+            this.config.series.forEach(plotSeries => {
+                this.startLoading();
+                plotSeries.load({
+                    size: this.$parent.$refs.plotWrapper.offsetWidth,
+                    start: range.min,
+                    end: range.max,
+                    domain: this.config.xAxis.get('key')
+                })
+                    .then(this.stopLoading());
+                if (purge) {
+                    plotSeries.purgeRecordsOutsideRange(range);
+                }
+            });
+        },
+
+        scheduleLoad(series) {
+            if (!this.scheduledLoads) {
+                this.startLoading();
+                this.scheduledLoads = [];
+                this.checkForSize = setInterval(function () {
+                    if (this.$parent.$refs.plotWrapper.offsetWidth === 0) {
+                        return;
+                    }
+
+                    this.stopLoading();
+                    this.scheduledLoads.forEach(this.loadSeriesData, this);
+                    delete this.scheduledLoads;
+                    clearInterval(this.checkForSize);
+                    delete this.checkForSize;
+                }.bind(this));
+            }
+
+            if (this.scheduledLoads.indexOf(series) === -1) {
+                this.scheduledLoads.push(series);
+            }
+        },
+
+        startLoading() {
+            this.pending += 1;
+            this.updateLoading();
+        },
+
+        stopLoading() {
+        //TODO: Is Vue.$nextTick ok to replace $scope.$evalAsync?
+            this.$nextTick().then(() => {
+                this.pending -= 1;
+                this.updateLoading();
+            });
+        },
+
+        updateLoading() {
+            this.$emit('loadingUpdated', this.pending > 0);
+        },
+
+        updateFiltersAndResubscribe(updatedFilters) {
+            this.config.series.forEach(function (series) {
+                series.updateFiltersAndRefresh(updatedFilters[series.keyString]);
+            });
+        },
+
+        clearData() {
+            this.config.series.forEach(function (series) {
+                series.reset();
+            });
+        },
+
+        setDisplayRange(series, xKey) {
+            if (this.config.series.length !== 1) {
+                return;
+            }
+
+            const displayRange = series.getDisplayRange(xKey);
+            this.config.xAxis.set('range', displayRange);
+        },
+
+        /**
+       * Track latest display bounds.  Forces update when not receiving ticks.
+       */
+        updateDisplayBounds(bounds, isTick) {
+            const newRange = {
+                min: bounds.start,
+                max: bounds.end
+            };
+            this.config.xAxis.set('range', newRange);
+            if (!isTick) {
+                this.skipReloadOnInteraction = true;
+                this.clear();
+                this.skipReloadOnInteraction = false;
+                this.loadMoreData(newRange, true);
+            } else {
+                // Drop any data that is more than 1x (max-min) before min.
+                // Limit these purges to once a second.
+                if (!this.nextPurge || this.nextPurge < Date.now()) {
+                    const keepRange = {
+                        min: newRange.min - (newRange.max - newRange.min),
+                        max: newRange.max
+                    };
+                    this.config.series.forEach(function (series) {
+                        series.purgeRecordsOutsideRange(keepRange);
+                    });
+                    this.nextPurge = Date.now() + 1000;
+                }
+            }
+        },
+
+        /**
+       * Handle end of user viewport change: load more data for current display
+       * bounds, and mark view as synchronized if bounds match configured bounds.
+       */
+        userViewportChangeEnd() {
+            const xDisplayRange = this.config.xAxis.get('displayRange');
+            const xRange = this.config.xAxis.get('range');
+
+            if (!this.skipReloadOnInteraction) {
+                this.loadMoreData(xDisplayRange);
+            }
+
+            this.synchronized(xRange.min === xDisplayRange.min
+            && xRange.max === xDisplayRange.max);
+        },
+
+        /**
+       * Getter/setter for "synchronized" value.  If not synchronized and
+       * time conductor is in clock mode, will mark objects as unsynced so that
+       * displays can update accordingly.
+       */
+        synchronized(value) {
+            if (typeof value !== 'undefined') {
+                this._synchronized = value;
+                const isUnsynced = !value && this.openmct.time.clock();
+                const domainObject = this.openmct.legacyObject(this.domainObject);
+                if (domainObject.getCapability('status')) {
+                    domainObject.getCapability('status')
+                        .set('timeconductor-unsynced', isUnsynced);
+                }
+            }
+
+            return this._synchronized;
+        },
+
+        initCanvas() {
+            if (this.canvas) {
+                this.stopListening(this.canvas);
+            }
+
+            this.canvas = this.$refs.chartContainer.querySelectorAll('canvas')[1];
+
+            this.listenTo(this.canvas, 'mousemove', this.trackMousePosition, this);
+            this.listenTo(this.canvas, 'mouseleave', this.untrackMousePosition, this);
+            this.listenTo(this.canvas, 'mousedown', this.onMouseDown, this);
+            this.listenTo(this.canvas, 'wheel', this.wheelZoom, this);
+        },
+
+        initialize() {
+            // Setup canvas etc.
+            this.xScale = new LinearScale(this.config.xAxis.get('displayRange'));
+            this.yScale = new LinearScale(this.config.yAxis.get('displayRange'));
+
+            this.pan = undefined;
+            this.marquee = undefined;
+
+            this.chartElementBounds = undefined;
+            this.tickUpdate = false;
+
+            this.canvas = this.$refs.chartContainer.querySelectorAll('canvas')[1];
+
+            this.listenTo(this.canvas, 'mousemove', this.trackMousePosition, this);
+            this.listenTo(this.canvas, 'mouseleave', this.untrackMousePosition, this);
+            this.listenTo(this.canvas, 'mousedown', this.onMouseDown, this);
+            this.listenTo(this.canvas, 'wheel', this.wheelZoom, this);
+
+            this.config.yAxisLabel = this.config.yAxis.get('label');
+
+            this.cursorGuideVertical = this.$refs.cursorGuideVertical;
+            this.cursorGuideHorizontal = this.$refs.cursorGuideHorizontal;
+
+            this.listenTo(this.config.xAxis, 'change:displayRange', this.onXAxisChange, this);
+            this.listenTo(this.config.yAxis, 'change:displayRange', this.onYAxisChange, this);
+        },
+
+        onXAxisChange(displayBounds) {
+            if (displayBounds) {
+                this.xScale.domain(displayBounds);
+            }
+        },
+
+        onYAxisChange(displayBounds) {
+            if (displayBounds) {
+                this.yScale.domain(displayBounds);
+            }
+        },
+
+        onTickWidthChange(width, fromDifferentObject) {
+            if (fromDifferentObject) {
+                // Always accept tick width if it comes from a different object.
+                this.tickWidth = width;
+            } else {
+                // Otherwise, only accept tick with if it's larger.
+                const newWidth = Math.max(width, this.tickWidth);
+                if (newWidth !== this.tickWidth) {
+                    this.tickWidth = newWidth;
+                }
+            }
+
+            this.$emit('plotTickWidth', this.tickWidth);
+        },
+
+        trackMousePosition(event) {
+            this.trackChartElementBounds(event);
+            this.xScale.range({
+                min: 0,
+                max: this.chartElementBounds.width
+            });
+            this.yScale.range({
+                min: 0,
+                max: this.chartElementBounds.height
+            });
+
+            this.positionOverElement = {
+                x: event.clientX - this.chartElementBounds.left,
+                y: this.chartElementBounds.height
+              - (event.clientY - this.chartElementBounds.top)
+            };
+
+            this.positionOverPlot = {
+                x: this.xScale.invert(this.positionOverElement.x),
+                y: this.yScale.invert(this.positionOverElement.y)
+            };
+
+            if (this.cursorGuide) {
+                this.updateCrosshairs(event);
+            }
+
+            this.highlightValues(this.positionOverPlot.x);
+            this.updateMarquee();
+            this.updatePan();
+            event.preventDefault();
+        },
+
+        updateCrosshairs(event) {
+            this.cursorGuideVertical.style.left = (event.clientX - this.chartElementBounds.x) + 'px';
+            this.cursorGuideHorizontal.style.top = (event.clientY - this.chartElementBounds.y) + 'px';
+        },
+
+        trackChartElementBounds(event) {
+            if (event.target === this.canvas) {
+                this.chartElementBounds = event.target.getBoundingClientRect();
+            }
+        },
+
+        onPlotHighlightSet($e, point) {
+            if (point === this.highlightPoint) {
+                return;
+            }
+
+            this.highlightValues(point);
+        },
+
+        highlightValues(point) {
+            this.highlightPoint = point;
+            // TODO: used in StackedPlotController
+            this.$emit('plotHighlightUpdate', point);
+            if (this.lockHighlightPoint) {
+                return;
+            }
+
+            if (!point) {
+                this.highlights = [];
+                this.config.series.models.forEach(series => delete series.closest);
+            } else {
+                this.highlights = this.config.series.models
+                    .filter(series => series.data.length > 0)
+                    .map(series => {
+                        series.closest = series.nearestPoint(point);
+
+                        return {
+                            series: series,
+                            point: series.closest
+                        };
+                    });
+            }
+        },
+
+        untrackMousePosition() {
+            this.positionOverElement = undefined;
+            this.positionOverPlot = undefined;
+            this.highlightValues();
+        },
+
+        onMouseDown(event) {
+        // do not monitor drag events on browser context click
+            if (event.ctrlKey) {
+                return;
+            }
+
+            this.listenTo(window, 'mouseup', this.onMouseUp, this);
+            this.listenTo(window, 'mousemove', this.trackMousePosition, this);
+            if (event.altKey) {
+                return this.startPan(event);
+            } else {
+                return this.startMarquee(event);
+            }
+        },
+
+        onMouseUp(event) {
+            this.stopListening(window, 'mouseup', this.onMouseUp, this);
+            this.stopListening(window, 'mousemove', this.trackMousePosition, this);
+
+            if (this.isMouseClick()) {
+                this.lockHighlightPoint = !this.lockHighlightPoint;
+            }
+
+            if (this.pan) {
+                return this.endPan(event);
+            }
+
+            if (this.marquee) {
+                return this.endMarquee(event);
+            }
+        },
+
+        isMouseClick() {
+            if (!this.marquee) {
+                return false;
+            }
+
+            const { start, end } = this.marquee;
+
+            return start.x === end.x && start.y === end.y;
+        },
+
+        updateMarquee() {
+            if (!this.marquee) {
+                return;
+            }
+
+            this.marquee.end = this.positionOverPlot;
+            this.marquee.endPixels = this.positionOverElement;
+        },
+
+        startMarquee(event) {
+            this.canvas.classList.remove('plot-drag');
+            this.canvas.classList.add('plot-marquee');
+
+            this.trackMousePosition(event);
+            if (this.positionOverPlot) {
+                this.freeze();
+                this.marquee = {
+                    startPixels: this.positionOverElement,
+                    endPixels: this.positionOverElement,
+                    start: this.positionOverPlot,
+                    end: this.positionOverPlot,
+                    color: [1, 1, 1, 0.5]
+                };
+                this.rectangles.push(this.marquee);
+                this.trackHistory();
+            }
+        },
+
+        endMarquee() {
+            const startPixels = this.marquee.startPixels;
+            const endPixels = this.marquee.endPixels;
+            const marqueeDistance = Math.sqrt(
+                Math.pow(startPixels.x - endPixels.x, 2)
+            + Math.pow(startPixels.y - endPixels.y, 2)
+            );
+            // Don't zoom if mouse moved less than 7.5 pixels.
+            if (marqueeDistance > 7.5) {
+                this.config.xAxis.set('displayRange', {
+                    min: Math.min(this.marquee.start.x, this.marquee.end.x),
+                    max: Math.max(this.marquee.start.x, this.marquee.end.x)
+                });
+                this.config.yAxis.set('displayRange', {
+                    min: Math.min(this.marquee.start.y, this.marquee.end.y),
+                    max: Math.max(this.marquee.start.y, this.marquee.end.y)
+                });
+                this.userViewportChangeEnd();
+            } else {
+                // A history entry is created by startMarquee, need to remove
+                // if marquee zoom doesn't occur.
+                this.plotHistory.pop();
+            }
+
+            this.rectangles = [];
+            this.marquee = undefined;
+        },
+
+        zoom(zoomDirection, zoomFactor) {
+            const currentXaxis = this.config.xAxis.get('displayRange');
+            const currentYaxis = this.config.yAxis.get('displayRange');
+
+            // when there is no plot data, the ranges can be undefined
+            // in which case we should not perform zoom
+            if (!currentXaxis || !currentYaxis) {
+                return;
+            }
+
+            this.freeze();
+            this.trackHistory();
+
+            const xAxisDist = (currentXaxis.max - currentXaxis.min) * zoomFactor;
+            const yAxisDist = (currentYaxis.max - currentYaxis.min) * zoomFactor;
+
+            if (zoomDirection === 'in') {
+                this.config.xAxis.set('displayRange', {
+                    min: currentXaxis.min + xAxisDist,
+                    max: currentXaxis.max - xAxisDist
+                });
+
+                this.config.yAxis.set('displayRange', {
+                    min: currentYaxis.min + yAxisDist,
+                    max: currentYaxis.max - yAxisDist
+                });
+            } else if (zoomDirection === 'out') {
+                this.config.xAxis.set('displayRange', {
+                    min: currentXaxis.min - xAxisDist,
+                    max: currentXaxis.max + xAxisDist
+                });
+
+                this.config.yAxis.set('displayRange', {
+                    min: currentYaxis.min - yAxisDist,
+                    max: currentYaxis.max + yAxisDist
+                });
+            }
+
+            this.userViewportChangeEnd();
+        },
+
+        wheelZoom(event) {
+            const ZOOM_AMT = 0.1;
+            event.preventDefault();
+
+            if (!this.positionOverPlot) {
+                return;
+            }
+
+            let xDisplayRange = this.config.xAxis.get('displayRange');
+            let yDisplayRange = this.config.yAxis.get('displayRange');
+
+            // when there is no plot data, the ranges can be undefined
+            // in which case we should not perform zoom
+            if (!xDisplayRange || !yDisplayRange) {
+                return;
+            }
+
+            this.freeze();
+            window.clearTimeout(this.stillZooming);
+
+            let xAxisDist = (xDisplayRange.max - xDisplayRange.min);
+            let yAxisDist = (yDisplayRange.max - yDisplayRange.min);
+            let xDistMouseToMax = xDisplayRange.max - this.positionOverPlot.x;
+            let xDistMouseToMin = this.positionOverPlot.x - xDisplayRange.min;
+            let yDistMouseToMax = yDisplayRange.max - this.positionOverPlot.y;
+            let yDistMouseToMin = this.positionOverPlot.y - yDisplayRange.min;
+            let xAxisMaxDist = xDistMouseToMax / xAxisDist;
+            let xAxisMinDist = xDistMouseToMin / xAxisDist;
+            let yAxisMaxDist = yDistMouseToMax / yAxisDist;
+            let yAxisMinDist = yDistMouseToMin / yAxisDist;
+
+            let plotHistoryStep;
+
+            if (!plotHistoryStep) {
+                plotHistoryStep = {
+                    x: xDisplayRange,
+                    y: yDisplayRange
+                };
+            }
+
+            if (event.wheelDelta < 0) {
+
+                this.config.xAxis.set('displayRange', {
+                    min: xDisplayRange.min + ((xAxisDist * ZOOM_AMT) * xAxisMinDist),
+                    max: xDisplayRange.max - ((xAxisDist * ZOOM_AMT) * xAxisMaxDist)
+                });
+
+                this.config.yAxis.set('displayRange', {
+                    min: yDisplayRange.min + ((yAxisDist * ZOOM_AMT) * yAxisMinDist),
+                    max: yDisplayRange.max - ((yAxisDist * ZOOM_AMT) * yAxisMaxDist)
+                });
+            } else if (event.wheelDelta >= 0) {
+
+                this.config.xAxis.set('displayRange', {
+                    min: xDisplayRange.min - ((xAxisDist * ZOOM_AMT) * xAxisMinDist),
+                    max: xDisplayRange.max + ((xAxisDist * ZOOM_AMT) * xAxisMaxDist)
+                });
+
+                this.config.yAxis.set('displayRange', {
+                    min: yDisplayRange.min - ((yAxisDist * ZOOM_AMT) * yAxisMinDist),
+                    max: yDisplayRange.max + ((yAxisDist * ZOOM_AMT) * yAxisMaxDist)
+                });
+            }
+
+            this.stillZooming = window.setTimeout(function () {
+                this.plotHistory.push(plotHistoryStep);
+                plotHistoryStep = undefined;
+                this.userViewportChangeEnd();
+            }.bind(this), 250);
+        },
+
+        startPan(event) {
+            this.canvas.classList.add('plot-drag');
+            this.canvas.classList.remove('plot-marquee');
+
+            this.trackMousePosition(event);
+            this.freeze();
+            this.pan = {
+                start: this.positionOverPlot
+            };
+            event.preventDefault();
+            this.trackHistory();
+
+            return false;
+        },
+
+        updatePan() {
+        // calculate offset between points.  Apply that offset to viewport.
+            if (!this.pan) {
+                return;
+            }
+
+            const dX = this.pan.start.x - this.positionOverPlot.x;
+            const dY = this.pan.start.y - this.positionOverPlot.y;
+            const xRange = this.config.xAxis.get('displayRange');
+            const yRange = this.config.yAxis.get('displayRange');
+
+            this.config.xAxis.set('displayRange', {
+                min: xRange.min + dX,
+                max: xRange.max + dX
+            });
+            this.config.yAxis.set('displayRange', {
+                min: yRange.min + dY,
+                max: yRange.max + dY
+            });
+        },
+
+        trackHistory() {
+            this.plotHistory.push({
+                x: this.config.xAxis.get('displayRange'),
+                y: this.config.yAxis.get('displayRange')
+            });
+        },
+
+        endPan() {
+            this.pan = undefined;
+            this.userViewportChangeEnd();
+        },
+
+        freeze() {
+            this.config.yAxis.set('frozen', true);
+            this.config.xAxis.set('frozen', true);
+        },
+
+        clear() {
+            this.config.yAxis.set('frozen', false);
+            this.config.xAxis.set('frozen', false);
+            this.plotHistory = [];
+            this.userViewportChangeEnd();
+        },
+
+        back() {
+            const previousAxisRanges = this.plotHistory.pop();
+            if (this.plotHistory.length === 0) {
+                this.clear();
+
+                return;
+            }
+
+            this.config.xAxis.set('displayRange', previousAxisRanges.x);
+            this.config.yAxis.set('displayRange', previousAxisRanges.y);
+            this.userViewportChangeEnd();
+        },
+
+        setCursorGuideVisibility(cursorGuide) {
+            this.cursorGuide = cursorGuide === true;
+        },
+
+        setGridLinesVisibility(gridLines) {
+            this.gridLines = gridLines === true;
+        },
+
+        setYAxisKey(yKey) {
+            this.config.series.models[0].emit('change:yKey', yKey);
+        },
+
+        destroy() {
+            configStore.deleteStore(this.config.id);
+
+            this.stopListening();
+            if (this.checkForSize) {
+                clearInterval(this.checkForSize);
+                delete this.checkForSize;
+            }
+
+            if (this.filterObserver) {
+                this.filterObserver();
+            }
+        }
+    }
+};
+
+</script>

src/plugins/plot/vue/single/MctTicks.vue

@@ -0,0 +1,269 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, 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.
+-->
+
+<template>
+<div ref="tickContainer"
+     class="u-contents js-ticks"
+>
+    <div v-if="position === 'left'"
+         class="gl-plot-tick-wrapper"
+    >
+        <div v-for="tick in ticks"
+             :key="tick.value"
+             class="gl-plot-tick gl-plot-x-tick-label"
+             :style="{
+                 left: (100 * (tick.value - min) / interval) + '%'
+             }"
+             :title="tick.fullText || tick.text"
+        >
+            {{ tick.text }}
+        </div>
+    </div>
+    <div v-if="position === 'top'"
+         class="gl-plot-tick-wrapper"
+    >
+        <div v-for="tick in ticks"
+             :key="tick.value"
+             class="gl-plot-tick gl-plot-y-tick-label"
+             :style="{ top: (100 * (max - tick.value) / interval) + '%' }"
+             :title="tick.fullText || tick.text"
+             style="margin-top: -0.50em; direction: ltr;"
+        >
+            <span>{{ tick.text }}</span>
+        </div>
+    </div>
+    <!-- grid lines follow -->
+    <template v-if="position === 'right'">
+        <div v-for="tick in ticks"
+             :key="tick.value"
+             class="gl-plot-hash hash-v"
+             :style="{
+                 right: (100 * (max - tick.value) / interval) + '%',
+                 height: '100%'
+             }"
+        >
+        </div>
+    </template>
+    <template v-if="position === 'bottom'">
+        <div v-for="tick in ticks"
+             :key="tick.value"
+             class="gl-plot-hash hash-h"
+             :style="{ bottom: (100 * (tick.value - min) / interval) + '%', width: '100%' }"
+        >
+        </div>
+    </template>
+</div>
+</template>
+
+<script>
+import eventHelpers from "./lib/eventHelpers";
+import { ticks, commonPrefix, commonSuffix } from "./tickUtils";
+import configStore from "./configuration/configStore";
+
+export default {
+    inject: ['openmct', 'domainObject'],
+    props: {
+        axisType: {
+            type: String,
+            default() {
+                return '';
+            },
+            required: true
+        },
+        position: {
+            required: true,
+            type: String,
+            default() {
+                return '';
+            }
+        }
+    },
+    data() {
+        return {
+            ticks: []
+        };
+    },
+    mounted() {
+        eventHelpers.extend(this);
+
+        this.axis = this.getAxisFromConfig();
+
+        this.tickCount = 4;
+        this.tickUpdate = false;
+        this.listenTo(this.axis, 'change:displayRange', this.updateTicks, this);
+        this.listenTo(this.axis, 'change:format', this.updateTicks, this);
+        this.listenTo(this.axis, 'change:key', this.updateTicksForceRegeneration, this);
+        this.updateTicks();
+    },
+    beforeDestroy() {
+        this.stopListening();
+    },
+    methods: {
+        getAxisFromConfig() {
+            if (!this.axisType) {
+                return;
+            }
+
+            const configId = this.openmct.objects.makeKeyString(this.domainObject.identifier);
+            let config = configStore.get(configId);
+            if (config) {
+                return config[this.axisType];
+            }
+        },
+        /**
+       * Determine whether ticks should be regenerated for a given range.
+       * Ticks are updated
+       * a) if they don't exist,
+       * b) if existing ticks are outside of given range,
+       * c) if range exceeds size of tick range by more than one tick step,
+       * d) if forced to regenerate (ex. changing x-axis metadata).
+       *
+       */
+        shouldRegenerateTicks(range, forceRegeneration) {
+            if (forceRegeneration) {
+                return true;
+            }
+
+            if (!this.tickRange || !this.ticks || !this.ticks.length) {
+                return true;
+            }
+
+            if (this.tickRange.max > range.max || this.tickRange.min < range.min) {
+                return true;
+            }
+
+            if (Math.abs(range.max - this.tickRange.max) > this.tickRange.step) {
+                return true;
+            }
+
+            if (Math.abs(this.tickRange.min - range.min) > this.tickRange.step) {
+                return true;
+            }
+
+            return false;
+        },
+
+        getTicks() {
+            const number = this.tickCount;
+            const clampRange = this.axis.get('values');
+            const range = this.axis.get('displayRange');
+            if (clampRange) {
+                return clampRange.filter(function (value) {
+                    return value <= range.max && value >= range.min;
+                }, this);
+            }
+
+            return ticks(range.min, range.max, number);
+        },
+
+        updateTicksForceRegeneration() {
+            this.updateTicks(true);
+        },
+
+        updateTicks(forceRegeneration = false) {
+            const range = this.axis.get('displayRange');
+            if (!range) {
+                delete this.min;
+                delete this.max;
+                delete this.interval;
+                delete this.tickRange;
+                this.ticks = [];
+                delete this.shouldCheckWidth;
+
+                return;
+            }
+
+            const format = this.axis.get('format');
+            if (!format) {
+                return;
+            }
+
+            this.min = range.min;
+            this.max = range.max;
+            this.interval = Math.abs(range.min - range.max);
+            if (this.shouldRegenerateTicks(range, forceRegeneration)) {
+                let newTicks = this.getTicks();
+                this.tickRange = {
+                    min: Math.min.apply(Math, newTicks),
+                    max: Math.max.apply(Math, newTicks),
+                    step: newTicks[1] - newTicks[0]
+                };
+
+                newTicks = newTicks
+                    .map(function (tickValue) {
+                        return {
+                            value: tickValue,
+                            text: format(tickValue)
+                        };
+                    }, this);
+
+                if (newTicks.length && typeof newTicks[0].text === 'string') {
+                    const tickText = newTicks.map(function (t) {
+                        return t.text;
+                    });
+                    const prefix = tickText.reduce(commonPrefix);
+                    const suffix = tickText.reduce(commonSuffix);
+                    newTicks.forEach(function (t) {
+                        t.fullText = t.text;
+                        if (suffix.length) {
+                            t.text = t.text.slice(prefix.length, -suffix.length);
+                        } else {
+                            t.text = t.text.slice(prefix.length);
+                        }
+                    });
+                }
+
+                this.ticks = newTicks;
+                this.shouldCheckWidth = true;
+            }
+
+            this.scheduleTickUpdate();
+        },
+
+        scheduleTickUpdate() {
+            if (this.tickUpdate) {
+                return;
+            }
+
+            this.tickUpdate = true;
+            setTimeout(this.doTickUpdate.bind(this), 0);
+        },
+
+        doTickUpdate() {
+            if (this.shouldCheckWidth) {
+                const tickElements = this.$refs.tickContainer.querySelectorAll('.gl-plot-tick > span');
+
+                const tickWidth = Number([].reduce.call(tickElements, function (memo, first) {
+                    return Math.max(memo, first.offsetWidth);
+                }, 0));
+
+                this.tickWidth = tickWidth;
+                this.$emit('plotTickWidth', tickWidth);
+                this.shouldCheckWidth = false;
+            }
+
+            this.tickUpdate = false;
+        }
+    }
+};
+
+</script>

src/plugins/plot/vue/single/Plot.vue

@@ -0,0 +1,125 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, 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.
+-->
+<template>
+<div ref="plotWrapper"
+     class="c-plot holder holder-plot has-control-bar"
+>
+    <div class="c-control-bar">
+        <span class="c-button-set c-button-set--strip-h">
+            <button class="c-button icon-download"
+                    title="Export This View's Data as PNG"
+                    @click="exportPNG()"
+            >
+                <span class="c-button__label">PNG</span>
+            </button>
+            <button class="c-button"
+                    title="Export This View's Data as JPG"
+                    @click="exportJPG()"
+            >
+                <span class="c-button__label">JPG</span>
+            </button>
+        </span>
+        <button class="c-button icon-crosshair"
+                :class="{ 'is-active': cursorGuide }"
+                title="Toggle cursor guides"
+                @click="toggleCursorGuide"
+        >
+        </button>
+        <button class="c-button"
+                :class="{ 'icon-grid-on': gridLines, 'icon-grid-off': !gridLines }"
+                title="Toggle grid lines"
+                @click="toggleGridLines"
+        >
+        </button>
+    </div>
+
+    <div ref="plotContainer"
+         class="l-view-section u-style-receiver js-style-receiver"
+    >
+        <div v-show="!!loading"
+             class="c-loading--overlay loading"
+        ></div>
+        <mct-plot :grid-lines="gridLines"
+                  :cursor-guide="cursorGuide"
+                  @loadingUpdated="loadingUpdated"
+        />
+    </div>
+</div>
+</template>
+
+<script>
+import eventHelpers from "./lib/eventHelpers";
+import MctPlot from './MctPlot.vue';
+
+export default {
+    components: {
+        MctPlot
+    },
+    inject: ['openmct', 'domainObject'],
+    data() {
+        return {
+            //Don't think we need this as it appears to be stacked plot specific
+            // hideExportButtons: false
+            cursorGuide: false,
+            gridLines: true,
+            loading: false
+        };
+    },
+    mounted() {
+        eventHelpers.extend(this);
+
+        this.exportImageService = this.openmct.$injector.get('exportImageService');
+    },
+    beforeDestroy() {
+        this.destroy();
+    },
+    methods: {
+        loadingUpdated(loading) {
+            this.loading = loading;
+        },
+        destroy() {
+            this.stopListening();
+        },
+
+        exportJPG() {
+            const plotElement = this.$refs.plotContainer;
+
+            this.exportImageService.exportJPG(plotElement, 'plot.jpg', 'export-plot');
+        },
+
+        exportPNG() {
+            const plotElement = this.$refs.plotContainer;
+
+            this.exportImageService.exportPNG(plotElement, 'plot.png', 'export-plot');
+        },
+
+        toggleCursorGuide() {
+            this.cursorGuide = !this.cursorGuide;
+        },
+
+        toggleGridLines() {
+            this.gridLines = !this.gridLines;
+        }
+    }
+};
+
+</script>

src/plugins/plot/vue/single/PlotViewProvider.js

@@ -0,0 +1,74 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import Plot from './Plot.vue';
+import Vue from 'vue';
+
+export default function PlotViewProvider(openmct) {
+    function hasTelemetry(domainObject) {
+        if (!Object.prototype.hasOwnProperty.call(domainObject, 'telemetry')) {
+            return false;
+        }
+
+        let metadata = openmct.telemetry.getMetadata(domainObject);
+
+        return metadata.values().length > 0 && hasDomainAndRange(metadata);
+    }
+
+    function hasDomainAndRange(metadata) {
+        return (metadata.valuesForHints(['range']).length > 0
+            && metadata.valuesForHints(['domain']).length > 0);
+    }
+
+    return {
+        key: 'plot-single',
+        name: 'Plot',
+        cssClass: 'icon-telemetry',
+        canView(domainObject) {
+            return domainObject.type === 'plot-single' || hasTelemetry(domainObject);
+        },
+
+        view: function (domainObject) {
+            let component;
+
+            return {
+                show: function (element) {
+                    component = new Vue({
+                        el: element,
+                        components: {
+                            Plot
+                        },
+                        provide: {
+                            openmct,
+                            domainObject
+                        },
+                        template: '<plot></plot>'
+                    });
+                },
+                destroy: function () {
+                    component.$destroy();
+                    component = undefined;
+                }
+            };
+        }
+    };
+}

src/plugins/plot/vue/single/axis/XAxis.vue

@@ -0,0 +1,151 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, 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.
+-->
+
+<template>
+<div v-if="loaded"
+     class="gl-plot-axis-area gl-plot-x has-local-controls"
+>
+    <mct-ticks :axis-type="'xAxis'"
+               :position="'left'"
+               @plotTickWidth="onTickWidthChange"
+    />
+
+    <div
+        class="gl-plot-label gl-plot-x-label"
+        :class="{'icon-gear': isEnabledXKeyToggle()}"
+    >
+        {{ xAxisLabel }}
+    </div>
+
+    <select
+        v-show="isEnabledXKeyToggle()"
+        v-model="selectedXKeyOptionKey"
+        class="gl-plot-x-label__select local-controls--hidden"
+        @change="toggleXKeyOption()"
+    >
+        <option v-for="option in xKeyOptions"
+                :key="option.key"
+                :value="option.key"
+        >{{ option.name }}
+        </option>
+    </select>
+</div>
+</template>
+
+<script>
+import MctTicks from "../MctTicks.vue";
+import eventHelpers from '../lib/eventHelpers';
+import configStore from "../configuration/configStore";
+
+export default {
+    components: {
+        MctTicks
+    },
+    inject: ['openmct', 'domainObject'],
+    props: {
+        seriesModel: {
+            type: Object,
+            default() {
+                return {};
+            }
+        }
+    },
+    data() {
+        return {
+            selectedXKeyOptionKey: '',
+            xKeyOptions: [],
+            xAxis: {},
+            loaded: false,
+            xAxisLabel: ''
+        };
+    },
+    mounted() {
+        eventHelpers.extend(this);
+        this.xAxis = this.getXAxisFromConfig();
+        this.loaded = true;
+        this.setUpXAxisOptions();
+        this.openmct.time.on('timeSystem', this.syncXAxisToTimeSystem);
+        this.listenTo(this.xAxis, 'change', this.setUpXAxisOptions);
+    },
+    beforeDestroy() {
+        this.openmct.time.off('timeSystem', this.syncXAxisToTimeSystem);
+    },
+    methods: {
+        isEnabledXKeyToggle() {
+            const isSinglePlot = this.xKeyOptions && this.xKeyOptions.length > 1 && this.seriesModel;
+            const isFrozen = this.xAxis.get('frozen');
+            const inRealTimeMode = this.openmct.time.clock();
+
+            return isSinglePlot && !isFrozen && !inRealTimeMode;
+        },
+        getXAxisFromConfig() {
+            const configId = this.openmct.objects.makeKeyString(this.domainObject.identifier);
+            let config = configStore.get(configId);
+            if (config) {
+                return config.xAxis;
+            }
+        },
+        toggleXKeyOption() {
+            const selectedXKey = this.selectedXKeyOptionKey;
+            const dataForSelectedXKey = this.seriesModel.data
+                ? this.seriesModel.data[0][selectedXKey]
+                : undefined;
+
+            if (dataForSelectedXKey !== undefined) {
+                this.xAxis.set('key', selectedXKey);
+            } else {
+                this.openmct.notifications.error('Cannot change x-axis view as no data exists for this view type.');
+                const xAxisKey = this.xAxis.get('key');
+                this.selectedXKeyOptionKey = this.getXKeyOption(xAxisKey).key;
+            }
+        },
+        getXKeyOption(key) {
+            return this.xKeyOptions.find(option => option.key === key);
+        },
+        syncXAxisToTimeSystem(timeSystem) {
+            const xAxisKey = this.xAxis.get('key');
+            if (xAxisKey !== timeSystem.key) {
+                this.xAxis.set('key', timeSystem.key);
+                this.xAxis.resetSeries();
+                this.setUpXAxisOptions();
+            }
+        },
+        setUpXAxisOptions() {
+            const xAxisKey = this.xAxis.get('key');
+
+            this.xKeyOptions = this.seriesModel.metadata
+                .valuesForHints(['domain'])
+                .map(function (o) {
+                    return {
+                        name: o.name,
+                        key: o.key
+                    };
+                });
+            this.xAxisLabel = this.xAxis.get('label');
+            this.selectedXKeyOptionKey = this.getXKeyOption(xAxisKey).key;
+        },
+        onTickWidthChange(width) {
+            this.$emit('tickWidthChanged', width);
+        }
+    }
+};
+</script>

src/plugins/plot/vue/single/axis/YAxis.vue

@@ -0,0 +1,137 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, 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.
+-->
+<template>
+<div v-if="loaded"
+     class="gl-plot-axis-area gl-plot-y has-local-controls"
+     :style="{
+         width: (tickWidth + 20) + 'px'
+     }"
+>
+
+    <div v-if="singleSeries"
+         class="gl-plot-label gl-plot-y-label"
+         :class="{'icon-gear': (yKeyOptions.length > 1)}"
+    >{{ yAxisLabel }}
+    </div>
+
+    <select v-if="yKeyOptions.length > 1 && singleSeries"
+            v-model="yAxisLabel"
+            class="gl-plot-y-label__select local-controls--hidden"
+            @change="toggleYAxisLabel"
+    >
+        <option v-for="(option, index) in yKeyOptions"
+                :key="index"
+                :value="option.name"
+                :selected="option.name === yAxisLabel"
+        >
+            {{ option.name }}
+        </option>
+    </select>
+
+    <mct-ticks :axis-type="'yAxis'"
+               class="gl-plot-ticks"
+               :position="'top'"
+               @plotTickWidth="onTickWidthChange"
+    />
+</div>
+</template>
+
+<script>
+import MctTicks from "../MctTicks.vue";
+import configStore from "../configuration/configStore";
+
+export default {
+    components: {
+        MctTicks
+    },
+    inject: ['openmct', 'domainObject'],
+    props: {
+        singleSeries: {
+            type: Boolean,
+            default() {
+                return true;
+            }
+        },
+        seriesModel: {
+            type: Object,
+            default() {
+                return {};
+            }
+        },
+        tickWidth: {
+            type: Number,
+            default() {
+                return 0;
+            }
+        }
+    },
+    data() {
+        return {
+            yAxisLabel: 'none',
+            loaded: false
+        };
+    },
+    mounted() {
+        this.yAxis = this.getYAxisFromConfig();
+        this.loaded = true;
+        this.setUpYAxisOptions();
+    },
+    methods: {
+        getYAxisFromConfig() {
+            const configId = this.openmct.objects.makeKeyString(this.domainObject.identifier);
+            let config = configStore.get(configId);
+            if (config) {
+                return config.yAxis;
+            }
+        },
+        setUpYAxisOptions() {
+            this.yKeyOptions = this.seriesModel.metadata
+                .valuesForHints(['range'])
+                .map(function (o) {
+                    return {
+                        name: o.name,
+                        key: o.key
+                    };
+                });
+
+            //  set yAxisLabel if none is set yet
+            if (this.yAxisLabel === 'none') {
+                let yKey = this.seriesModel.model.yKey;
+                let yKeyModel = this.yKeyOptions.filter(o => o.key === yKey)[0];
+
+                this.yAxisLabel = yKeyModel.name;
+            }
+        },
+        toggleYAxisLabel() {
+            let yAxisObject = this.yKeyOptions.filter(o => o.name === this.yAxisLabel)[0];
+
+            if (yAxisObject) {
+                this.$emit('yKeyChanged', yAxisObject.key);
+                this.yAxis.set('label', this.yAxisLabel);
+            }
+        },
+        onTickWidthChange(width) {
+            this.$emit('tickWidthChanged', width);
+        }
+    }
+};
+</script>

src/plugins/plot/vue/single/chart/MCTChartAlarmPointSet.js

@@ -0,0 +1,67 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import eventHelpers from '../lib/eventHelpers';
+
+export default class MCTChartAlarmPointSet {
+    constructor(series, chart, offset) {
+        this.series = series;
+        this.chart = chart;
+        this.offset = offset;
+        this.points = [];
+
+        eventHelpers.extend(this);
+
+        this.listenTo(series, 'add', this.append, this);
+        this.listenTo(series, 'remove', this.remove, this);
+        this.listenTo(series, 'reset', this.reset, this);
+        this.listenTo(series, 'destroy', this.destroy, this);
+
+        series.data.forEach(function (point, index) {
+            this.append(point, index, series);
+        }, this);
+    }
+
+    append(datum) {
+        if (datum.mctLimitState) {
+            this.points.push({
+                x: this.offset.xVal(datum, this.series),
+                y: this.offset.yVal(datum, this.series),
+                datum: datum
+            });
+        }
+    }
+
+    remove(datum) {
+        this.points = this.points.filter(function (p) {
+            return p.datum !== datum;
+        });
+    }
+
+    reset() {
+        this.points = [];
+    }
+
+    destroy() {
+        this.stopListening();
+    }
+}

src/plugins/plot/vue/single/chart/MCTChartLineLinear.js

@@ -0,0 +1,31 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import MCTChartSeriesElement from './MCTChartSeriesElement';
+
+export default class MCTChartLineLinear extends MCTChartSeriesElement {
+    addPoint(point, start, count) {
+        this.buffer[start] = point.x;
+        this.buffer[start + 1] = point.y;
+    }
+}
+

src/plugins/plot/vue/single/chart/MCTChartLineStepAfter.js

@@ -0,0 +1,74 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import MCTChartSeriesElement from './MCTChartSeriesElement';
+
+export default class MCTChartLineStepAfter extends MCTChartSeriesElement {
+    removePoint(point, index, count) {
+        if (index > 0 && index / 2 < this.count) {
+            this.buffer[index + 1] = this.buffer[index - 1];
+        }
+    }
+
+    vertexCountForPointAtIndex(index) {
+        if (index === 0 && this.count === 0) {
+            return 2;
+        }
+
+        return 4;
+    }
+
+    startIndexForPointAtIndex(index) {
+        if (index === 0) {
+            return 0;
+        }
+
+        return 2 + ((index - 1) * 4);
+    }
+
+    addPoint(point, start, count) {
+        if (start === 0 && this.count === 0) {
+            // First point is easy.
+            this.buffer[start] = point.x;
+            this.buffer[start + 1] = point.y; // one point
+        } else if (start === 0 && this.count > 0) {
+            // Unshifting requires adding an extra point.
+            this.buffer[start] = point.x;
+            this.buffer[start + 1] = point.y;
+            this.buffer[start + 2] = this.buffer[start + 4];
+            this.buffer[start + 3] = point.y;
+        } else {
+            // Appending anywhere in line, insert standard two points.
+            this.buffer[start] = point.x;
+            this.buffer[start + 1] = this.buffer[start - 1];
+            this.buffer[start + 2] = point.x;
+            this.buffer[start + 3] = point.y;
+
+            if (start < this.count * 2) {
+                // Insert into the middle, need to update the following
+                // point.
+                this.buffer[start + 5] = point.y;
+            }
+        }
+    }
+}
+

src/plugins/plot/vue/single/chart/MCTChartPointSet.js

@@ -0,0 +1,32 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import MCTChartSeriesElement from './MCTChartSeriesElement';
+
+// TODO: Is this needed? This is identical to MCTChartLineLinear. Why is it a different class?
+export default class MCTChartPointSet extends MCTChartSeriesElement {
+    addPoint(point, start, count) {
+        this.buffer[start] = point.x;
+        this.buffer[start + 1] = point.y;
+    }
+}
+

src/plugins/plot/vue/single/chart/MCTChartSeriesElement.js

@@ -0,0 +1,157 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2020, 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.
+ *****************************************************************************/
+
+import eventHelpers from '../lib/eventHelpers';
+
+export default class MCTChartSeriesElement {
+    constructor(series, chart, offset) {
+        this.series = series;
+        this.chart = chart;
+        this.offset = offset;
+        this.buffer = new Float32Array(20000);
+        this.count = 0;
+
+        eventHelpers.extend(this);
+
+        this.listenTo(series, 'add', this.append, this);
+        this.listenTo(series, 'remove', this.remove, this);
+        this.listenTo(series, 'reset', this.reset, this);
+        this.listenTo(series, 'destroy', this.destroy, this);
+        series.data.forEach(function (point, index) {
+            this.append(point, index, series);
+        }, this);
+    }
+
+    getBuffer() {
+        if (this.isTempBuffer) {
+            this.buffer = new Float32Array(this.buffer);
+            this.isTempBuffer = false;
+        }
+
+        return this.buffer;
+    }
+
+    color() {
+        return this.series.get('color');
+    }
+
+    vertexCountForPointAtIndex(index) {
+        return 2;
+    }
+
+    startIndexForPointAtIndex(index) {
+        return 2 * index;
+    }
+
+    removeSegments(index, count) {
+        const target = index;
+        const start = index + count;
+        const end = this.count * 2;
+        this.buffer.copyWithin(target, start, end);
+        for (let zero = end - count; zero < end; zero++) {
+            this.buffer[zero] = 0;
+        }
+    }
+
+    removePoint(point, index, count) {
+        // by default, do nothing.
+    }
+
+    remove(point, index, series) {
+        const vertexCount = this.vertexCountForPointAtIndex(index);
+        const removalPoint = this.startIndexForPointAtIndex(index);
+
+        this.removeSegments(removalPoint, vertexCount);
+
+        this.removePoint(
+            this.makePoint(point, series),
+            removalPoint,
+            vertexCount
+        );
+        this.count -= (vertexCount / 2);
+    }
+
+    makePoint(point, series) {
+        if (!this.offset.xVal) {
+            this.chart.setOffset(point, undefined, series);
+        }
+
+        return {
+            x: this.offset.xVal(point, series),
+            y: this.offset.yVal(point, series)
+        };
+    }
+
+    append(point, index, series) {
+        const pointsRequired = this.vertexCountForPointAtIndex(index);
+        const insertionPoint = this.startIndexForPointAtIndex(index);
+        this.growIfNeeded(pointsRequired);
+        this.makeInsertionPoint(insertionPoint, pointsRequired);
+        this.addPoint(
+            this.makePoint(point, series),
+            insertionPoint,
+            pointsRequired
+        );
+        this.count += (pointsRequired / 2);
+    }
+
+    makeInsertionPoint(insertionPoint, pointsRequired) {
+        if (this.count * 2 > insertionPoint) {
+            if (!this.isTempBuffer) {
+                this.buffer = Array.prototype.slice.apply(this.buffer);
+                this.isTempBuffer = true;
+            }
+
+            const target = insertionPoint + pointsRequired;
+            let start = insertionPoint;
+            for (; start < target; start++) {
+                this.buffer.splice(start, 0, 0);
+            }
+        }
+    }
+
+    reset() {
+        this.buffer = new Float32Array(20000);
+        this.count = 0;
+        if (this.offset.x) {
+            this.series.data.forEach(function (point, index) {
+                this.append(point, index, this.series);
+            }, this);
+        }
+    }
+
+    growIfNeeded(pointsRequired) {
+        const remainingPoints = this.buffer.length - this.count * 2;
+        let temp;
+
+        if (remainingPoints <= pointsRequired) {
+            temp = new Float32Array(this.buffer.length + 20000);
+            temp.set(this.buffer);
+            this.buffer = temp;
+        }
+    }
+
+    destroy() {
+        this.stopListening();
+    }
+
+}

src/plugins/plot/vue/single/chart/MctChart.vue

@@ -0,0 +1,449 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, 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.
+-->
+<template>
+<div class="gl-plot-chart-area">
+    <span v-html="canvasTemplate"></span>
+    <span v-html="canvasTemplate"></span>
+</div>
+</template>
+
+<script>
+
+import eventHelpers from "../lib/eventHelpers";
+import { DrawLoader } from '../draw/DrawLoader';
+import MCTChartLineLinear from './MCTChartLineLinear';
+import MCTChartLineStepAfter from './MCTChartLineStepAfter';
+import MCTChartPointSet from './MCTChartPointSet';
+import MCTChartAlarmPointSet from './MCTChartAlarmPointSet';
+import configStore from "../configuration/configStore";
+import PlotConfigurationModel from "../configuration/PlotConfigurationModel";
+
+const MARKER_SIZE = 6.0;
+const HIGHLIGHT_SIZE = MARKER_SIZE * 2.0;
+
+export default {
+    inject: ['openmct', 'domainObject'],
+    props: {
+        rectangles: {
+            type: Array,
+            default() {
+                return [];
+            }
+        },
+        highlights: {
+            type: Array,
+            default() {
+                return [];
+            }
+        }
+    },
+    data() {
+        return {
+            canvasTemplate: '<canvas style="position: absolute; background: none; width: 100%; height: 100%;"></canvas>'
+        };
+    },
+    watch: {
+        highlights() {
+            this.scheduleDraw();
+        },
+        rectangles() {
+            this.scheduleDraw();
+        }
+    },
+    mounted() {
+        eventHelpers.extend(this);
+
+        this.config = this.getConfig();
+        this.isDestroyed = false;
+        this.lines = [];
+        this.pointSets = [];
+        this.alarmSets = [];
+        this.offset = {};
+        this.seriesElements = new WeakMap();
+
+        let canvasEls = this.$parent.$refs.chartContainer.querySelectorAll("canvas");
+        const mainCanvas = canvasEls[1];
+        const overlayCanvas = canvasEls[0];
+        if (this.initializeCanvas(mainCanvas, overlayCanvas)) {
+            this.draw();
+        }
+
+        this.listenTo(this.config.series, 'add', this.onSeriesAdd, this);
+        this.listenTo(this.config.series, 'remove', this.onSeriesRemove, this);
+        this.listenTo(this.config.yAxis, 'change:key', this.clearOffset, this);
+        this.listenTo(this.config.yAxis, 'change', this.scheduleDraw);
+        this.listenTo(this.config.xAxis, 'change', this.scheduleDraw);
+        this.config.series.forEach(this.onSeriesAdd, this);
+    },
+    beforeDestroy() {
+        this.destroy();
+    },
+    methods: {
+        getConfig() {
+            const configId = this.openmct.objects.makeKeyString(this.domainObject.identifier);
+            let config = configStore.get(configId);
+            if (!config) {
+                config = new PlotConfigurationModel({
+                    id: configId,
+                    domainObject: this.domainObject,
+                    openmct: this.openmct
+                });
+                configStore.add(configId, config);
+            }
+
+            return config;
+        },
+        reDraw(mode, o, series) {
+            this.changeInterpolate(mode, o, series);
+            this.changeMarkers(mode, o, series);
+            this.changeAlarmMarkers(mode, o, series);
+        },
+        onSeriesAdd(series) {
+            this.listenTo(series, 'change:xKey', this.reDraw, this);
+            this.listenTo(series, 'change:interpolate', this.changeInterpolate, this);
+            this.listenTo(series, 'change:markers', this.changeMarkers, this);
+            this.listenTo(series, 'change:alarmMarkers', this.changeAlarmMarkers, this);
+            this.listenTo(series, 'change', this.scheduleDraw);
+            this.listenTo(series, 'add', this.scheduleDraw);
+            this.makeChartElement(series);
+        },
+        changeInterpolate(mode, o, series) {
+            if (mode === o) {
+                return;
+            }
+
+            const elements = this.seriesElements.get(series);
+            elements.lines.forEach(function (line) {
+                this.lines.splice(this.lines.indexOf(line), 1);
+                line.destroy();
+            }, this);
+            elements.lines = [];
+
+            const newLine = this.lineForSeries(series);
+            if (newLine) {
+                elements.lines.push(newLine);
+                this.lines.push(newLine);
+            }
+        },
+        changeAlarmMarkers(mode, o, series) {
+            if (mode === o) {
+                return;
+            }
+
+            const elements = this.seriesElements.get(series);
+            if (elements.alarmSet) {
+                elements.alarmSet.destroy();
+                this.alarmSets.splice(this.alarmSets.indexOf(elements.alarmSet), 1);
+            }
+
+            elements.alarmSet = this.alarmPointSetForSeries(series);
+            if (elements.alarmSet) {
+                this.alarmSets.push(elements.alarmSet);
+            }
+        },
+        changeMarkers(mode, o, series) {
+            if (mode === o) {
+                return;
+            }
+
+            const elements = this.seriesElements.get(series);
+            elements.pointSets.forEach(function (pointSet) {
+                this.pointSets.splice(this.pointSets.indexOf(pointSet), 1);
+                pointSet.destroy();
+            }, this);
+            elements.pointSets = [];
+
+            const pointSet = this.pointSetForSeries(series);
+            if (pointSet) {
+                elements.pointSets.push(pointSet);
+                this.pointSets.push(pointSet);
+            }
+        },
+        onSeriesRemove(series) {
+            this.stopListening(series);
+            this.removeChartElement(series);
+            this.scheduleDraw();
+        },
+        destroy() {
+            this.isDestroyed = true;
+            this.stopListening();
+            this.lines.forEach(line => line.destroy());
+            DrawLoader.releaseDrawAPI(this.drawAPI);
+        },
+        clearOffset() {
+            delete this.offset.x;
+            delete this.offset.y;
+            delete this.offset.xVal;
+            delete this.offset.yVal;
+            delete this.offset.xKey;
+            delete this.offset.yKey;
+            this.lines.forEach(function (line) {
+                line.reset();
+            });
+            this.pointSets.forEach(function (pointSet) {
+                pointSet.reset();
+            });
+        },
+        setOffset(offsetPoint, index, series) {
+            if (this.offset.x && this.offset.y) {
+                return;
+            }
+
+            const offsets = {
+                x: series.getXVal(offsetPoint),
+                y: series.getYVal(offsetPoint)
+            };
+
+            this.offset.x = function (x) {
+                return x - offsets.x;
+            }.bind(this);
+            this.offset.y = function (y) {
+                return y - offsets.y;
+            }.bind(this);
+            this.offset.xVal = function (point, pSeries) {
+                return this.offset.x(pSeries.getXVal(point));
+            }.bind(this);
+            this.offset.yVal = function (point, pSeries) {
+                return this.offset.y(pSeries.getYVal(point));
+            }.bind(this);
+        },
+        initializeCanvas(canvas, overlay) {
+            this.canvas = canvas;
+            this.overlay = overlay;
+            this.drawAPI = DrawLoader.getDrawAPI(canvas, overlay);
+            if (this.drawAPI) {
+                this.listenTo(this.drawAPI, 'error', this.fallbackToCanvas, this);
+            }
+
+            return Boolean(this.drawAPI);
+        },
+        fallbackToCanvas() {
+            this.stopListening(this.drawAPI);
+            DrawLoader.releaseDrawAPI(this.drawAPI);
+            // Have to throw away the old canvas elements and replace with new
+            // canvas elements in order to get new drawing contexts.
+            const div = document.createElement('div');
+            div.innerHTML = this.TEMPLATE;
+            const mainCanvas = div.querySelectorAll("canvas")[1];
+            const overlayCanvas = div.querySelectorAll("canvas")[0];
+            this.canvas.parentNode.replaceChild(mainCanvas, this.canvas);
+            this.canvas = mainCanvas;
+            this.overlay.parentNode.replaceChild(overlayCanvas, this.overlay);
+            this.overlay = overlayCanvas;
+            this.drawAPI = DrawLoader.getFallbackDrawAPI(this.canvas, this.overlay);
+            this.$emit('plotReinitializeCanvas');
+        },
+        removeChartElement(series) {
+            const elements = this.seriesElements.get(series);
+
+            elements.lines.forEach(function (line) {
+                this.lines.splice(this.lines.indexOf(line), 1);
+                line.destroy();
+            }, this);
+            elements.pointSets.forEach(function (pointSet) {
+                this.pointSets.splice(this.pointSets.indexOf(pointSet), 1);
+                pointSet.destroy();
+            }, this);
+            if (elements.alarmSet) {
+                elements.alarmSet.destroy();
+                this.alarmSets.splice(this.alarmSets.indexOf(elements.alarmSet), 1);
+            }
+
+            this.seriesElements.delete(series);
+        },
+        lineForSeries(series) {
+            if (series.get('interpolate') === 'linear') {
+                return new MCTChartLineLinear(
+                    series,
+                    this,
+                    this.offset
+                );
+            }
+
+            if (series.get('interpolate') === 'stepAfter') {
+                return new MCTChartLineStepAfter(
+                    series,
+                    this,
+                    this.offset
+                );
+            }
+        },
+        pointSetForSeries(series) {
+            if (series.get('markers')) {
+                return new MCTChartPointSet(
+                    series,
+                    this,
+                    this.offset
+                );
+            }
+        },
+        alarmPointSetForSeries(series) {
+            if (series.get('alarmMarkers')) {
+                return new MCTChartAlarmPointSet(
+                    series,
+                    this,
+                    this.offset
+                );
+            }
+        },
+        makeChartElement(series) {
+            const elements = {
+                lines: [],
+                pointSets: []
+            };
+
+            const line = this.lineForSeries(series);
+            if (line) {
+                elements.lines.push(line);
+                this.lines.push(line);
+            }
+
+            const pointSet = this.pointSetForSeries(series);
+            if (pointSet) {
+                elements.pointSets.push(pointSet);
+                this.pointSets.push(pointSet);
+            }
+
+            elements.alarmSet = this.alarmPointSetForSeries(series);
+            if (elements.alarmSet) {
+                this.alarmSets.push(elements.alarmSet);
+            }
+
+            this.seriesElements.set(series, elements);
+        },
+        canDraw() {
+            if (!this.offset.x || !this.offset.y) {
+                return false;
+            }
+
+            return true;
+        },
+        scheduleDraw() {
+            if (!this.drawScheduled) {
+                requestAnimationFrame(this.draw);
+                this.drawScheduled = true;
+            }
+        },
+        draw() {
+            this.drawScheduled = false;
+            if (this.isDestroyed) {
+                return;
+            }
+
+            this.drawAPI.clear();
+            if (this.canDraw()) {
+                this.updateViewport();
+                this.drawSeries();
+                this.drawRectangles();
+                this.drawHighlights();
+            }
+        },
+        updateViewport() {
+            const xRange = this.config.xAxis.get('displayRange');
+            const yRange = this.config.yAxis.get('displayRange');
+
+            if (!xRange || !yRange) {
+                return;
+            }
+
+            const dimensions = [
+                xRange.max - xRange.min,
+                yRange.max - yRange.min
+            ];
+
+            const origin = [
+                this.offset.x(xRange.min),
+                this.offset.y(yRange.min)
+            ];
+
+            this.drawAPI.setDimensions(
+                dimensions,
+                origin
+            );
+        },
+        drawSeries() {
+            this.lines.forEach(this.drawLine, this);
+            this.pointSets.forEach(this.drawPoints, this);
+            this.alarmSets.forEach(this.drawAlarmPoints, this);
+        },
+        drawAlarmPoints(alarmSet) {
+            this.drawAPI.drawLimitPoints(
+                alarmSet.points,
+                alarmSet.series.get('color').asRGBAArray(),
+                alarmSet.series.get('markerSize')
+            );
+        },
+        drawPoints(chartElement) {
+            this.drawAPI.drawPoints(
+                chartElement.getBuffer(),
+                chartElement.color().asRGBAArray(),
+                chartElement.count,
+                chartElement.series.get('markerSize'),
+                chartElement.series.get('markerShape')
+            );
+        },
+        drawLine(chartElement) {
+            this.drawAPI.drawLine(
+                chartElement.getBuffer(),
+                chartElement.color().asRGBAArray(),
+                chartElement.count
+            );
+        },
+        drawHighlights() {
+            if (this.highlights && this.highlights.length) {
+                this.highlights.forEach(this.drawHighlight, this);
+            }
+        },
+        drawHighlight(highlight) {
+            const points = new Float32Array([
+                this.offset.xVal(highlight.point, highlight.series),
+                this.offset.yVal(highlight.point, highlight.series)
+            ]);
+
+            const color = highlight.series.get('color').asRGBAArray();
+            const pointCount = 1;
+            const shape = highlight.series.get('markerShape');
+
+            this.drawAPI.drawPoints(points, color, pointCount, HIGHLIGHT_SIZE, shape);
+        },
+        drawRectangles() {
+            if (this.rectangles) {
+                this.rectangles.forEach(this.drawRectangle, this);
+            }
+        },
+        drawRectangle(rect) {
+            this.drawAPI.drawSquare(
+                [
+                    this.offset.x(rect.start.x),
+                    this.offset.y(rect.start.y)
+                ],
+                [
+                    this.offset.x(rect.end.x),
+                    this.offset.y(rect.end.y)
+                ],
+                rect.color
+            );
+        }
+    }
+};
+
+</script>