Global and Local Clear (#2418)

* first proto of global clear, working on tables

* global clear works on plots

* styling

* Status bar migration to top of layout, WIP

- Refine and remove legacy styles for Indicators;
- Significant cleanup in Indicator markup;
- Remove unnecessary wrapper component StatusBar.vue;
- Move collapse-button styles to a more general location in _controls
.scss;
- New hasMenu mixin to allow easier application of disclosure control
styling;

* Status bar migration to top of layout, WIP

- Refine styles and markup for Indicators;
- Better separation of styles for clickable and non-clickable
Indicators;

* Status bar migration to top of layout, WIP

- Added tracking style to indicator-template;
- Moved click action to button in label of globalClearIndicator;
- Removed unnecessary markup in Indicators.vue;
- Commented out __head collapse button for now in Layout.vue;

* Status Bar Migration WIP

- Significant progress styling Indicators and their hover bubbles;
- Pull back from clickable Indicators to hover approach;
- Better theme-based constants for Indicator menu-related colors;

* Status Bar Migration WIP

- Significant refactor of label element naming in multiple indicator
markup files;
- Refactor label-related CSS;
- Better class naming: no-collapse > no-minify;
- Refactor example *-launch files to use buttons instead of <a> tags;
- Significant progress on expanding shell head and button styling;

* Status Bar Migration WIP

- Cleanups, sanding on Indicator CSS;
- Added local storage retention for head expanded state;
- Adjust dark theme colors for $colorWarningHi for better legibility;
- Other minor tweaks and fixes;

* Status Bar Migration WIP

- Suppress background in Indicators;
- Restore Snow as default theme;

* add a local clear action, rename plugin

* objectViews extends eventemitter, table view provider provides an onClearData function that is called from ObjectView when clear event is emitted. TODO - support plots

* add support for plots via legacy view provider

* add test for clearDataAction

* remove focus from test file

* install the following plugins by default:
Import Export
Folder View
Tabs View
Flexible Layout
LAD Table
Go To Original Action

* update test to include plugin level tests

* remove focus from unit test

src/ui/components/ObjectView.vue

@@ -61,6 +61,8 @@ export default {
             if (this.composition) {
                 this.composition._destroy();
             }
+
+            this.openmct.objectViews.off('clearData', this.clearData);
         },
         invokeEditModeHandler(editMode) {
             this.currentView.onEditModeChange(editMode);
@@ -112,6 +114,8 @@ export default {
                 this.removeSelectable = openmct.selection.selectable(
                     this.$el, this.getSelectionContext(), true);
             }
+
+            this.openmct.objectViews.on('clearData', this.clearData);
         },
         show(object, viewKey, immediatelySelect) {
             if (this.unlisten) {
@@ -187,6 +191,22 @@ export default {
         getComposableDomainObject(event) {
             let serializedDomainObject = event.dataTransfer.getData('openmct/composable-domain-object');
             return JSON.parse(serializedDomainObject);
+        },
+        clearData(domainObject) {
+            if (domainObject) {
+                let clearKeyString = this.openmct.objects.makeKeyString(domainObject.identifier),
+                    currentObjectKeyString = this.openmct.objects.makeKeyString(this.currentObject.identifier);
+                
+                if (clearKeyString === currentObjectKeyString) {
+                    if (this.currentView.onClearData) {
+                        this.currentView.onClearData();
+                    }
+                }
+            } else {
+                if (this.currentView.onClearData) {
+                    this.currentView.onClearData();
+                }
+            }
         }
     }
 }