Conditionals feature (#2830)

Introduces conditional styling feature.

src/plugins/condition/ConditionSetViewProvider.js

@@ -0,0 +1,84 @@
+/*****************************************************************************
+ * 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 ConditionSet from './components/ConditionSet.vue';
+import Vue from 'vue';
+
+const DEFAULT_VIEW_PRIORITY = 100;
+
+export default class ConditionSetViewProvider {
+    constructor(openmct) {
+        this.openmct = openmct;
+        this.name = 'Conditions View';
+        this.key = 'conditionSet.view';
+        this.cssClass = 'icon-conditional';
+    }
+
+    canView(domainObject) {
+        return domainObject.type === 'conditionSet';
+    }
+
+    canEdit(domainObject) {
+        return domainObject.type === 'conditionSet';
+    }
+
+    view(domainObject, objectPath) {
+        let component;
+        const openmct = this.openmct;
+        return {
+            show: (container, isEditing) => {
+                component = new Vue({
+                    el: container,
+                    components: {
+                        ConditionSet
+                    },
+                    provide: {
+                        openmct,
+                        domainObject,
+                        objectPath
+                    },
+                    data() {
+                        return {
+                            isEditing
+                        }
+                    },
+                    template: '<condition-set :isEditing="isEditing"></condition-set>'
+                });
+            },
+            onEditModeChange: (isEditing) => {
+                component.isEditing = isEditing;
+            },
+            destroy: () => {
+                component.$destroy();
+                component = undefined;
+            }
+        };
+    }
+
+    priority(domainObject) {
+        if (domainObject.type === 'conditionSet') {
+            return Number.MAX_VALUE;
+        } else {
+            return DEFAULT_VIEW_PRIORITY;
+        }
+    }
+}