Close the browser tab when clicking on "Close and Shut Down Notebook"

packages/application-extension/schema/menus.json

@@ -14,6 +14,14 @@
             "command": "notebook:trust",
             "rank": 20
           },
+          {
+            "type": "separator",
+            "rank": 30
+          },
+          {
+            "command": "filemenu:close-and-cleanup",
+            "rank": 40
+          },
           {
             "command": "application:close",
             "disabled": true

packages/notebook-extension/src/index.ts

@@ -18,6 +18,8 @@ import { Text, Time } from '@jupyterlab/coreutils';
 
 import { IDocumentManager } from '@jupyterlab/docmanager';
 
+import { IMainMenu } from '@jupyterlab/mainmenu';
+
 import {
   NotebookPanel,
   INotebookTracker,
@@ -26,7 +28,7 @@ import {
 
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 
-import { ITranslator } from '@jupyterlab/translation';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 
 import { INotebookShell } from '@jupyter-notebook/application';
 
@@ -126,6 +128,40 @@ const checkpoints: JupyterFrontEndPlugin<void> = {
   },
 };
 
+/**
+ * Add a command to close the browser tab when clicking on "Close and Shut Down"
+ */
+const closeTab: JupyterFrontEndPlugin<void> = {
+  id: '@jupyter-notebook/notebook-extension:close-tab',
+  autoStart: true,
+  requires: [IMainMenu],
+  optional: [ITranslator],
+  activate: (
+    app: JupyterFrontEnd,
+    menu: IMainMenu,
+    translator: ITranslator | null
+  ) => {
+    const { commands } = app;
+    translator = translator ?? nullTranslator;
+    const trans = translator.load('notebook');
+
+    const id = 'notebook:close-and-halt';
+    commands.addCommand(id, {
+      label: trans.__('Close and Halt'),
+      execute: async () => {
+        await commands.execute('notebook:close-and-shutdown');
+        window.close();
+      },
+    });
+    menu.fileMenu.closeAndCleaners.add({
+      id,
+      // use a small rank to it takes precedence over the default
+      // shut down action for the notebook
+      rank: 0,
+    });
+  },
+};
+
 /**
  * The kernel logo plugin.
  */
@@ -402,6 +438,7 @@ const trusted: JupyterFrontEndPlugin<void> = {
  */
 const plugins: JupyterFrontEndPlugin<any>[] = [
   checkpoints,
+  closeTab,
   kernelLogo,
   kernelStatus,
   scrollOutput,

ui-tests/test/notebook.spec.ts

@@ -155,4 +155,24 @@ test.describe('Notebook', () => {
     const imageName = 'notebooktools-right-panel.png';
     expect(await panel.screenshot()).toMatchSnapshot(imageName);
   });
+
+  test('Clicking on "Close and Halt" should close the browser tab', async ({
+    page,
+    tmpPath,
+  }) => {
+    const notebook = 'simple.ipynb';
+    await page.contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${notebook}`),
+      `${tmpPath}/${notebook}`
+    );
+    await page.goto(`notebooks/${tmpPath}/${notebook}`);
+
+    const menuPath = 'File>Close and Halt';
+    await page.menu.clickMenuItem(menuPath);
+
+    // Press Enter to confirm the dialog
+    await page.keyboard.press('Enter');
+
+    expect(page.isClosed());
+  });
 });