Manager, WidgetManager and plugin refactoring (simplification) . Warning: some signature changes.

Author: Alan Fleming

packages/base-manager/src/manager-base.ts

@@ -217,7 +217,7 @@ export abstract class ManagerBase implements IWidgetManager {
   async get_model(model_id: string): Promise<WidgetModel> {
     let i = 0;
     while (!this._models[model_id] && i < this._sleepTimes.length) {
-      new Promise((r) => setTimeout(r, this._sleepTimes[i++]))
+      new Promise((resolve) => setTimeout(resolve, this._sleepTimes[i++]));
     }
     const modelPromise = this._models[model_id];
     if (modelPromise === undefined) {

python/jupyterlab_widgets/package.json

@@ -64,7 +64,6 @@
     "@jupyterlab/services": "^6.0.0 || ^7.0.0",
     "@jupyterlab/settingregistry": "^3.0.0 || ^4.0.0",
     "@jupyterlab/translation": "^3.0.0 || ^4.0.0",
-    "@lumino/algorithm": "^1.11.1 || ^2.0.0",
     "@lumino/coreutils": "^1.11.1 || ^2.1",
     "@lumino/disposable": "^1.10.1 || ^2.1",
     "@lumino/properties": "^2.0.1",
@@ -76,7 +75,6 @@
   },
   "devDependencies": {
     "@jupyterlab/builder": "^3.0.0 || ^4.0.0",
-    "@jupyterlab/cells": "^3.0.0 || ^4.0.0",
     "@types/jquery": "^3.5.16",
     "@types/semver": "^7.3.6",
     "@typescript-eslint/eslint-plugin": "^5.8.0",