Copy To functionality for notebooks (#141)

* Add Copy To functionality for notebooks

* Fix formatting

* Fix linting errors

* Fixes

* Fix build failure

* Rebase and address feedback

* Increase test coverage

src/Explorer/Tree/ResourceTreeAdapter.tsx

@@ -7,6 +7,7 @@ import * as ViewModels from "../../Contracts/ViewModels";
 import { NotebookContentItem, NotebookContentItemType } from "../Notebook/NotebookContentItem";
 import { ResourceTreeContextMenuButtonFactory } from "../ContextMenuButtonFactory";
 import * as MostRecentActivity from "../MostRecentActivity/MostRecentActivity";
+import CopyIcon from "../../../images/notebook/Notebook-copy.svg";
 import CosmosDBIcon from "../../../images/Azure-Cosmos-DB.svg";
 import CollectionIcon from "../../../images/tree-collection.svg";
 import DeleteIcon from "../../../images/delete.svg";
@@ -33,6 +34,9 @@ import TabsBase from "../Tabs/TabsBase";
 import { userContext } from "../../UserContext";
 
 export class ResourceTreeAdapter implements ReactAdapter {
+  public static readonly MyNotebooksTitle = "My Notebooks";
+  public static readonly GitHubReposTitle = "GitHub repos";
+
   private static readonly DataTitle = "DATA";
   private static readonly NotebooksTitle = "NOTEBOOKS";
   private static readonly PseudoDirPath = "PsuedoDir";
@@ -104,7 +108,7 @@ export class ResourceTreeAdapter implements ReactAdapter {
     };
 
     this.myNotebooksContentRoot = {
-      name: "My Notebooks",
+      name: ResourceTreeAdapter.MyNotebooksTitle,
       path: this.container.getNotebookBasePath(),
       type: NotebookContentItemType.Directory
     };
@@ -118,7 +122,7 @@ export class ResourceTreeAdapter implements ReactAdapter {
 
     if (this.container.notebookManager?.gitHubOAuthService.isLoggedIn()) {
       this.gitHubNotebooksContentRoot = {
-        name: "GitHub repos",
+        name: ResourceTreeAdapter.GitHubReposTitle,
         path: ResourceTreeAdapter.PseudoDirPath,
         type: NotebookContentItemType.Directory
       };
@@ -563,6 +567,11 @@ export class ResourceTreeAdapter implements ReactAdapter {
                 );
               }
             },
+            {
+              label: "Copy to ...",
+              iconSrc: CopyIcon,
+              onClick: () => this.copyNotebook(item)
+            },
             {
               label: "Download",
               iconSrc: NotebookIcon,
@@ -574,6 +583,13 @@ export class ResourceTreeAdapter implements ReactAdapter {
     };
   }
 
+  private copyNotebook = async (item: NotebookContentItem) => {
+    const content = await this.container.readFile(item);
+    if (content) {
+      this.container.copyNotebook(item.name, content);
+    }
+  };
+
   private createDirectoryContextMenu(item: NotebookContentItem): TreeNodeMenuItem[] {
     let items: TreeNodeMenuItem[] = [
       {