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Improve handling of optional notebook tracker #7581

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Merged
merged 1 commit into from
Feb 5, 2025
Merged

Improve handling of optional notebook tracker #7581

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10 changes: 8 additions & 2 deletions packages/lab-extension/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -69,8 +69,9 @@ const interfaceSwitcher: JupyterFrontEndPlugin<void> = {
id: '@jupyter-notebook/lab-extension:interface-switcher',
description: 'A plugin to add custom toolbar items to the notebook page.',
autoStart: true,
requires: [ITranslator, INotebookTracker],
requires: [ITranslator],
optional: [
INotebookTracker,
ICommandPalette,
INotebookPathOpener,
INotebookShell,
Expand All @@ -80,13 +81,18 @@ const interfaceSwitcher: JupyterFrontEndPlugin<void> = {
activate: (
app: JupyterFrontEnd,
translator: ITranslator,
notebookTracker: INotebookTracker,
notebookTracker: INotebookTracker | null,
palette: ICommandPalette | null,
notebookPathOpener: INotebookPathOpener | null,
notebookShell: INotebookShell | null,
labShell: ILabShell | null,
toolbarRegistry: IToolbarWidgetRegistry | null
) => {
if (!notebookTracker) {
// bail if trying to use this plugin without a notebook tracker
return;
}

const { commands, shell } = app;
const baseUrl = PageConfig.getBaseUrl();
const trans = translator.load('notebook');
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