Support widget factory

samples/jp_app_launcher_config_2.yaml

@@ -1,6 +1,8 @@
 - title: Notebook example in config 2
-  description: Example of opening a notebook in dashboard mode without Voila
+  description: Example of opening a notebook with Voila Preview
   source: ./sample.ipynb
+  args:
+    widget-type: 'Voila Preview'
   cwd: '.'
   type: notebook
   catalog: Config 2

src/factories/notebook/notebook_factory.ts

@@ -1,6 +1,8 @@
 import { JupyterFrontEnd } from '@jupyterlab/application';
-import { NotebookPanel } from '@jupyterlab/notebook';
 import { IDocumentManager } from '@jupyterlab/docmanager';
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
+import { NotebookPanel } from '@jupyterlab/notebook';
+
 import { ILauncherConfiguration } from '../../schema';
 import { IDict, IPanelFactory } from '../../token';
 
@@ -10,42 +12,44 @@ export class NotebookFactory implements IPanelFactory {
     if (!config.sourceCode) {
       return;
     }
-    const { documentManager } = this.options;
-    const cwd = args['cwd'];
-    const app = this.options.app;
+    const { documentManager, fileBrowser } = this.options;
 
-    const model = await documentManager.newUntitled({
-      path: cwd,
-      type: 'notebook',
-      ext: '.ipynb'
-    });
-    let renamed = false;
+    let found = false;
     let index = 0;
-    let newName = model.path;
-    while (!renamed) {
-      try {
-        newName = `${config.title}${index === 0 ? '' : '-' + index}.ipynb`;
-        await documentManager.rename(model.path, newName);
-        renamed = true;
-      } catch {
+    let newName = config.title;
+    const allFiles = new Set([...fileBrowser.model.items()].map(it => it.name));
+    while (!found) {
+      newName = `${config.title}${index === 0 ? '' : '-' + index}.ipynb`;
+      if (!allFiles.has(newName)) {
+        found = true;
+      } else {
         index += 1;
       }
     }
-    const doc: NotebookPanel = await app.commands.execute('docmanager:open', {
-      path: newName
-    });
+    const fileBlob = new File([config.sourceCode], newName);
+    await fileBrowser.model.upload(fileBlob);
+    const configArgs: IDict = config.args ?? {};
+    const factory = configArgs['widget-type'] ?? 'default';
+    const doc = await documentManager.openOrReveal(newName, factory);
+    if (!doc) {
+      console.error(`Failed to create widget with ${factory} factory`);
+      return;
+    }
     await doc.context.ready;
     doc.context.model.fromString(config.sourceCode);
 
     await doc.context.save();
-    await doc.sessionContext.ready;
-    doc.content.activeCellIndex = 1;
+    if (doc instanceof NotebookPanel) {
+      await doc.sessionContext.ready;
+      doc.content.activeCellIndex = 1;
+    }
   }
 }
 
 export namespace NotebookFactory {
   export interface IOptions {
     app: JupyterFrontEnd;
     documentManager: IDocumentManager;
+    fileBrowser: IDefaultFileBrowser;
   }
 }

src/manager_plugin.ts

@@ -6,7 +6,7 @@ import { IEditorServices } from '@jupyterlab/codeeditor';
 import { INotebookTracker, NotebookPanel } from '@jupyterlab/notebook';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { IThemeManager } from '@jupyterlab/apputils';
-
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
 import { CommandsFactory } from './factories/commands';
 import { LocalServerFactory } from './factories/local_server';
 import { MarkdownFactory } from './factories/markdown';
@@ -27,7 +27,8 @@ export const panelFactoryPlugin: JupyterFrontEndPlugin<IPanelFactoryManager> = {
     INotebookTracker,
     IEditorServices,
     NotebookPanel.IContentFactory,
-    IDocumentManager
+    IDocumentManager,
+    IDefaultFileBrowser
   ],
   optional: [IThemeManager],
   activate: (
@@ -37,6 +38,7 @@ export const panelFactoryPlugin: JupyterFrontEndPlugin<IPanelFactoryManager> = {
     editorServices: IEditorServices,
     contentFactory: NotebookPanel.IContentFactory,
     documentManager: IDocumentManager,
+    fileBrowser: IDefaultFileBrowser,
     themeManager?: IThemeManager
   ): IPanelFactoryManager => {
     const manager = new PanelFactoryManager();
@@ -52,7 +54,8 @@ export const panelFactoryPlugin: JupyterFrontEndPlugin<IPanelFactoryManager> = {
 
     const notebookFactory = new NotebookFactory({
       app,
-      documentManager
+      documentManager,
+      fileBrowser
     });
     manager.registerFactory('notebook', notebookFactory);