Lock views and prevent editing (#3094)

* working lock and unlock

* prevent flexible layout drop hints from showing

* fix lint issue

* wip

* disable mousedown when not editing in DisplayLayout

* continued wip

* Cherrypick new glyphs from add-new-glyphs-062320

* More new glyphs, updated art

- New glyphs: icon-unlocked and icon-target;
- Updated art for icon-lock glyph;

* Edit toggle refinements WIP

- Markup, CSS in BrowseBar.vue;

* More new glyphs, updated art

- New glyphs: icon-unlocked and icon-target;
- Updated art for icon-lock glyph;

* Edit toggle refinements

- Replaced toggle switch with button;

* prevent styling changes when locked

* fix lint issues

* fix tests

* make reviewer suggested changes

Co-authored-by: charlesh88 <charlesh88@gmail.com>

src/plugins/flexibleLayout/components/container.vue

@@ -53,6 +53,7 @@
                 :index="i"
                 :container-index="index"
                 :is-editing="isEditing"
+                :object-path="objectPath"
             />
 
             <drop-hint
@@ -105,6 +106,14 @@ export default {
         isEditing: {
             type: Boolean,
             default: false
+        },
+        locked: {
+            type: Boolean,
+            default: false
+        },
+        objectPath: {
+            type: Array,
+            required: true
         }
     },
     computed: {
@@ -130,6 +139,10 @@ export default {
     },
     methods: {
         allowDrop(event, index) {
+            if (this.locked) {
+                return false;
+            }
+
             if (event.dataTransfer.types.includes('openmct/domain-object-path')) {
                 return true;
             }