Emit AppEvent when opening Catalog and changing Catalog Category (#5071)

* Emit AppEvent when opening Catalog and changing Catalog Category.

Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Add getName method to CatalogCategory

Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

src/common/__tests__/catalog-entity.test.ts

@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+import { CatalogCategory, CatalogCategorySpec } from "../catalog";
+
+class TestCatalogCategory extends CatalogCategory {
+  public readonly apiVersion = "catalog.k8slens.dev/v1alpha1";
+  public readonly kind = "CatalogCategory";
+  public metadata = {
+    name: "Test Category",
+    icon: "",
+  };
+  public spec: CatalogCategorySpec = {
+    group: "entity.k8slens.dev",
+    versions: [],
+    names: {
+      kind: "Test",
+    },
+  };
+}
+
+describe("CatalogCategory", () => {
+  it("returns name", () => {
+    const category = new TestCatalogCategory();
+
+    expect(category.getName()).toEqual("Test Category");
+  });
+});

src/common/catalog/catalog-entity.ts

@@ -173,6 +173,13 @@ export abstract class CatalogCategory extends (EventEmitter as new () => TypedEm
     return `${this.spec.group}/${this.spec.names.kind}`;
   }
 
+  /**
+   * Get the name of this category
+   */
+  public getName(): string {
+    return this.metadata.name;
+  }
+
   /**
    * Add a filter for menu items of catalogAddMenu
    * @param fn The function that should return a truthy value if that menu item should be displayed