[Layout] Support sub-object selection in layout (#1811)

Updates to sub object selection, first cut of selection APIs.

* [API] Add inspector view registry to register inspector view providers and show a view in the inspector.

[API] Modify the selection API to register the click event and handle the event. The API will add a class to the selected object and the immediate parent of the selected object.

[Directive] Implemenet mct-selectable directive for making an element selectable.

[Layout] Update the layout controller to use the Selection API. Also, add double click gesture to allow drilling into a selected object.

Populate the Elements pool with contained elements of the selected object. Update toolbar and inspector to listen for the changes in selection.

* [Frontend] Mods to markup and CSS for sub-object selection

* MCTSelectable allows selection in initialization, use to select on navigation

[Frontend] Show grid in first nested layout, hide from deeper nesting. Only show grids when applicable to relative selection.

* Fix checkstyle and lint errors

* Bring back the change that made mct-init-select work

* [Inspector] Make sure the right content is displayed based on whether a view provider exists or not.

* Only show table options when editing

* Make reviewers' requested changes

* Fix broken tests

* [Frontend] Cleanups and tweaks

Fixes #1811
- Cleanups between frame, editor and selecting.scss;
- Hover and selected borders visually pumped up a bit;
- Solid borders on hover and selecting when browsing;
- Dashed borders for layouts when editing;
- Fixed cursor to only show move capability when
element is selected;

* [Frontend] Tweaks to frame.no-frame layout

Fixes #1811
- Margin set to 0;
- Overflow set to hidden;

* [Frontend] Fixed position items border width fixed

Fixes #1811
- Set to 1px;

* Add tests for inspector controller and fix broken tests. Clean up code.

* [Fixed Position] Stop event propagation on click handlers in fixed position to avoid the event reaching the selection click handlers which caused issues with toolbar and selection."

* Fix tests

* Add tests

* Add test

* Remove element from document

platform/commonUI/regions/src/InspectorController.js

@@ -21,44 +21,69 @@
  *****************************************************************************/
 
 define(
-    ['../../browse/src/InspectorRegion'],
-    function (InspectorRegion) {
+    [],
+    function () {
 
         /**
-         * The InspectorController adds region data for a domain object's type
-         * to the scope.
+         * The InspectorController listens for the selection changes and adds the selection
+         * object to the scope.
          *
          * @constructor
          */
-        function InspectorController($scope, policyService) {
-            var domainObject = $scope.domainObject,
-                typeCapability = domainObject.getCapability('type'),
-                statusListener;
+        function InspectorController($scope, openmct, $document) {
+            var self = this;
+            self.$scope = $scope;
 
             /**
-             * Filters region parts to only those allowed by region policies
-             * @param regions
-             * @returns {{}}
+             * Callback handler for the selection change event.
+             * Adds the selection object to the scope. If the selected item has an inspector view,
+             * it puts the key in the scope. If provider view exists, it shows the view.
              */
-            function filterRegions(inspector) {
-                //Dupe so we're not modifying the type definition.
-                return inspector.regions && inspector.regions.filter(function (region) {
-                    return policyService.allow('region', region, domainObject);
-                });
+            function setSelection(selection) {
+                if (selection[0]) {
+                    var view = openmct.inspectorViews.get(selection);
+                    var container = $document[0].querySelectorAll('.inspector-provider-view')[0];
+                    container.innerHTML = "";
+
+                    if (view) {
+                        self.providerView = true;
+                        view.show(container);
+                    } else {
+                        self.providerView = false;
+                        $scope.inspectorKey = selection[0].context.oldItem.getCapability("type").typeDef.inspector;
+                    }
+                }
+
+                self.$scope.selection = selection;
             }
 
-            function setRegions() {
-                $scope.regions = filterRegions(typeCapability.getDefinition().inspector || new InspectorRegion());
-            }
+            openmct.selection.on("change", setSelection);
+
+            setSelection(openmct.selection.get());
 
-            statusListener = domainObject.getCapability("status").listen(setRegions);
             $scope.$on("$destroy", function () {
-                statusListener();
+                openmct.selection.off("change", setSelection);
             });
-
-            setRegions();
         }
 
+        /**
+         * Gets the selected item.
+         *
+         * @returns a domain object
+         */
+        InspectorController.prototype.selectedItem = function () {
+            return this.$scope.selection[0].context.oldItem;
+        };
+
+        /**
+         * Checks if a provider view exists.
+         *
+         * @returns 'true' if provider view exists, 'false' otherwise
+         */
+        InspectorController.prototype.hasProviderView = function () {
+            return this.providerView;
+        };
+
         return InspectorController;
     }
 );