Make session dialogs configurable

lint

update notebook example

offer the option to keep no kernel

integrity

lint

fix up merge conflicts

lint

update tests

Update tests

Select a kernel if necessary in the console

examples/notebook/src/commands.ts

@@ -2,6 +2,7 @@
  * Set up keyboard shortcuts & commands for notebook
  */
 import { CommandRegistry } from '@lumino/commands';
+import { sessionContextDialogs } from '@jupyterlab/apputils';
 import { CompletionHandler } from '@jupyterlab/completer';
 import { NotebookPanel, NotebookActions } from '@jupyterlab/notebook';
 import {
@@ -126,12 +127,13 @@ export const SetupCommands = (
   });
   commands.addCommand(cmdIds.restart, {
     label: 'Restart Kernel',
-    execute: async () =>
-      nbWidget.context.sessionContext.session?.kernel?.restart()
+    execute: () =>
+      sessionContextDialogs.restart(nbWidget.context.sessionContext)
   });
   commands.addCommand(cmdIds.switchKernel, {
     label: 'Switch Kernel',
-    execute: async () => nbWidget.context.sessionContext.selectKernel()
+    execute: () =>
+      sessionContextDialogs.selectKernel(nbWidget.context.sessionContext)
   });
   commands.addCommand(cmdIds.runAndAdvance, {
     label: 'Run and Advance',

examples/notebook/src/index.ts

@@ -112,7 +112,7 @@ function createApp(manager: ServiceManager.IManager): void {
   const model = new CompleterModel();
   const completer = new Completer({ editor, model });
   const connector = new KernelConnector({
-    session: nbWidget.sessionContext.session
+    session: nbWidget.context.sessionContext.session
   });
   const handler = new CompletionHandler({ completer, connector });
 

packages/apputils-extension/src/index.ts

@@ -13,10 +13,12 @@ import {
 import {
   Dialog,
   ICommandPalette,
+  ISessionContextDialogs,
   ISplashScreen,
   IWindowResolver,
   WindowResolver,
-  Printing
+  Printing,
+  sessionContextDialogs
 } from '@jupyterlab/apputils';
 
 import { IStateDB, StateDB, URLExt } from '@jupyterlab/coreutils';
@@ -439,6 +441,18 @@ const state: JupyterFrontEndPlugin<IStateDB> = {
   }
 };
 
+/**
+ * The default session context dialogs extension.
+ */
+const sessionDialogs: JupyterFrontEndPlugin<ISessionContextDialogs> = {
+  id: '@jupyterlab/apputils-extension:sessionDialogs',
+  provides: ISessionContextDialogs,
+  autoStart: true,
+  activate: () => {
+    return sessionContextDialogs;
+  }
+};
+
 /**
  * Export the plugins as default.
  */
@@ -450,6 +464,7 @@ const plugins: JupyterFrontEndPlugin<any>[] = [
   settingsPlugin,
   state,
   splash,
+  sessionDialogs,
   themesPlugin,
   themesPaletteMenuPlugin
 ];