add styles get interceptor for overlay plots

src/plugins/conditionWidget/conditionWidgetStylesInterceptor.js

@@ -26,9 +26,11 @@ export default function conditionWidgetStylesInterceptor(openmct) {
       return identifier.key === 'conditionWidget' && !domainObject.configuration?.objectStyles;
     },
     invoke: (identifier, domainObject) => {
-      domainObject.configuration = {
-        objectStyles: {}
-      };
+      if (!domainObject.configuration) {
+        domainObject.configuration = {};
+      }
+
+      domainObject.configuration.objectStyles = {};
 
       openmct.objects.save(domainObject);
 

src/plugins/plot/PlotView.vue

@@ -173,15 +173,6 @@ export default {
   created() {
     eventHelpers.extend(this);
     this.imageExporter = new ImageExporter(this.openmct);
-
-    // Initialize objectStyles for overlay plot if it doesn't exist
-    if (
-      this.domainObject.type === 'telemetry.plot.overlay' &&
-      !this.domainObject.configuration.objectStyles
-    ) {
-      this.domainObject.configuration.objectStyles = {};
-    }
-
     this.loadComposition();
     this.setupClockChangedEvent((domainObject) => {
       this.triggerUnsubscribeFromStaleness(domainObject);

src/plugins/plot/overlayPlot/overlayPlotStylesInterceptor.js

@@ -0,0 +1,43 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2024, 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 overlayPlotStylesInterceptor(openmct) {
+  return {
+    appliesTo: (identifier, domainObject) => {
+      return (
+        identifier.key === 'telemetry.plot.overlay' && !domainObject.configuration?.objectStyles
+      );
+    },
+    invoke: (identifier, domainObject) => {
+      if (!domainObject.configuration) {
+        domainObject.configuration = {};
+      }
+
+      domainObject.configuration.objectStyles = {};
+
+      openmct.objects.save(domainObject);
+
+      return domainObject;
+    },
+    priority: openmct.priority.DEFAULT
+  };
+}

src/plugins/plot/plugin.js

@@ -23,6 +23,7 @@ import PlotViewActions from './actions/ViewActions.js';
 import PlotsInspectorViewProvider from './inspector/PlotsInspectorViewProvider.js';
 import StackedPlotsInspectorViewProvider from './inspector/StackedPlotsInspectorViewProvider.js';
 import OverlayPlotCompositionPolicy from './overlayPlot/OverlayPlotCompositionPolicy.js';
+import overlayPlotStylesInterceptor from './overlayPlot/overlayPlotStylesInterceptor.js';
 import OverlayPlotViewProvider from './overlayPlot/OverlayPlotViewProvider.js';
 import PlotViewProvider from './PlotViewProvider.js';
 import StackedPlotCompositionPolicy from './stackedPlot/StackedPlotCompositionPolicy.js';
@@ -31,6 +32,8 @@ import StackedPlotViewProvider from './stackedPlot/StackedPlotViewProvider.js';
 
 export default function () {
   return function install(openmct) {
+    openmct.objects.addGetInterceptor(overlayPlotStylesInterceptor(openmct));
+
     openmct.types.addType('telemetry.plot.overlay', {
       key: 'telemetry.plot.overlay',
       name: 'Overlay Plot',