Transpile (optional) TypeScript, support imports (package and relative) and schema

.eslintrc.js

@@ -15,11 +15,11 @@ module.exports = {
     '@typescript-eslint/naming-convention': [
       'error',
       {
-        'selector': 'interface',
-        'format': ['PascalCase'],
-        'custom': {
-          'regex': '^I[A-Z]',
-          'match': true
+        selector: 'interface',
+        format: ['PascalCase'],
+        custom: {
+          regex: '^I[A-Z]',
+          match: true
         }
       }
     ],
@@ -33,7 +33,7 @@ module.exports = {
       { avoidEscape: true, allowTemplateLiterals: false }
     ],
     curly: ['error', 'all'],
-    eqeqeq: 'error',
+    eqeqeq: ['error', 'smart'],
     'prefer-arrow-callback': 'error'
   }
 };

MANIFEST.in

@@ -6,6 +6,7 @@ include package.json
 include install.json
 include ts*.json
 include yarn.lock
+include *.config.js
 
 graft jupyterlab_plugin_playground/labextension
 

README.md

@@ -1,10 +1,10 @@
 # JupyterLab Plugin Playground
 
-[![Github Actions Status](https://github.com/jupyterlab/jupyterlab-plugin-playground/workflows/Build/badge.svg)](https://github.com/jupyterlab/jupyterlab-plugin-playground/actions/workflows/build.yml)[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-plugin-playground/master?urlpath=lab)
+[![Github Actions Status](https://github.com/jupyterlab/jupyterlab-plugin-playground/workflows/Build/badge.svg)](https://github.com/jupyterlab/jupyterlab-plugin-playground/actions/workflows/build.yml)
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-plugin-playground/master?urlpath=lab)
 
 A JupyterLab extension to write and load simple JupyterLab plugins inside JupyterLab.
 
-
 ## Install
 
 This extension requires JupyterLab 3. Install this extension with pip:
@@ -19,20 +19,22 @@ This extension provides a new command, `Load Current File As Extension`, availab
 
 As an example, open the text editor by creating a new text file and paste this small JupyterLab plugin into it. This plugin will create a simple command `My Super Cool Toggle` in the command palette that can be toggled on and off.
 
-```js
-{
-  id: 'MySuperCoolTogglePlugin',
+```typescript
+import { ICommandPalette } from '@jupyterlab/apputils';
+
+const plugin = {
+  id: 'my-super-cool-toggle:plugin',
   autoStart: true, // Activate this plugin immediately
-  requires: ["@jupyterlab/apputils:ICommandPalette"],
-  activate: function(app, palette) {
-    let commandID = "MySuperCoolToggle";
+  requires: [ICommandPalette],
+  activate: function (app, palette) {
+    let commandID = 'my-super-cool-toggle:toggle';
     let toggle = true; // The current toggle state
     app.commands.addCommand(commandID, {
       label: 'My Super Cool Toggle',
-      isToggled: function() {
+      isToggled: function () {
         return toggle;
       },
-      execute: function() {
+      execute: function () {
         // Toggle the state
         toggle = !toggle;
       }
@@ -41,50 +43,69 @@ As an example, open the text editor by creating a new text file and paste this s
     palette.addItem({
       command: commandID,
       // Sort to the top for convenience
-      category: "AAA"
+      category: 'AAA'
     });
   }
-}
+};
+
+export default plugin;
 ```
+
 While in the text editor, load this plugin in JupyterLab by invoking the Command Palette and executing `Load Current File As Extension`. Invoke the Command Palette again and you will see a new command "My Super Cool Toggle". Executing this new command will toggle the checkbox next to the command.
 
 As another more advanced example, we load the [bqplot](https://bqplot.readthedocs.io) Jupyter Widget library from the cloud using RequireJS. This assumes you have the [ipywidgets JupyterLab extension](https://ipywidgets.readthedocs.io/en/stable/user_install.html#installing-in-jupyterlab-3-0) installed.
 
-```js
-{
+```typescript
+// IJupyterWidgetRegistry token is provided with Plugin Playground
+import { IJupyterWidgetRegistry } from '@jupyter-widgets/base';
+// Use RequireJS to load the AMD module. '@*' selects the latest version
+// and `/dist/index.js` loads the corresponding module containing bqplot
+// from the CDN configured in Settings (`requirejsCDN`).
+import bqplot from "bqplot@*/dist/index";
+
+const plugin = {
   id: 'mydynamicwidget',
   autoStart: true,
-  requires: ["jupyter.extensions.jupyterWidgetRegistry"],
-  activate: function(app, widgets) {
-    // Set up RequireJS to pull packages from the jsdelivr CDN.
-    require.config({
-      baseUrl: "https://cdn.jsdelivr.net/npm"
-    });
-    // Use RequireJS to load the AMD module. '@*' selects the latest version
-    // and `/dist/index.js` loads the corresponding module containing bqplot.
-    require(["bqplot@*/dist/index"], function(plugin) {
-      widgets.registerWidget({
-          name: 'bqplot',
-          version: plugin.version,
-          exports: plugin
-      });
+  requires: [IJupyterWidgetRegistry],
+  activate: function(app, widgets: IJupyterWidgetRegistry) {
+    widgets.registerWidget({
+        name: 'bqplot',
+        version: bqplot.version,
+        exports: bqplot
     });
   }
 }
+export default plugin;
 ```
 
 There are a few differences in how to write plugins in the Plugin Playground compared to writing plugins in a JupyterLab extension:
 
-* Plugins cannot import tokens from other packages, so we use the token names as strings in the `requires` and `optional` plugin fields rather than imported tokens. For example, we used the [ICommandPalette](https://github.com/jupyterlab/jupyterlab/blob/4169b7b684f6160b5a9ab093391ec531399dfa82/packages/apputils/src/tokens.ts#L16-L18) token name in the `requires` field above. The Plugin Playground will automatically change the token names to the corresponding tokens registered with the current JupyterLab when it loads the plugin. This means you can use token names for any extension currently loaded in JupyterLab, including non-core extensions.
-* To load code from a separate package, you can use RequireJS as in the example above to load bqplot. RequireJS comes with the Plugin Playground and can be used to load any AMD module.
-* You can only load a plugin with a given id once. If you make changes to your plugin, save it and refresh the JupyterLab page to be able to load it again.
+- The playground is more understanding: you can use JavaScript-like code rather than fully typed TypeScript and it will still compile.
+- You can only load a plugin with a given id more than once, but the previous version will not be unloaded. If you make changes to your plugin, save it and refresh the JupyterLab page to be able to load it afresh again.
+- To load code from an external package, RequireJS is used (it is hidden behind ES6-compatible import syntax) which means that the import statements need to be slightly modified to point to appropriate version or file in the package.
+  - In addition to JupyterLab and Lumino packages, only AMD modules can be imported; ES6 modules and modules compiled for consumption by Webpack/Node will not work in the current version and an attempt to load such modules will result in `Uncaught SyntaxError: Unexpected token 'export'` error.
+- While the playground will attempt to import relative files (with `.ts` suffix), SVG (as strings), and to load `plugin.json` schema, these are experimental features for rapid prototyping and details are subject to change; other resources like CSS styles are not yet supported (but the support is planned)
+
+### Migrating from version 0.3.0
+
+Version 0.3.0 supported only object-based plugins and `require.js` based imports.
+While the object-based syntax for defining plugins remains supported, using `require` global reference is now deprecated.
+
+A future version will remove `require` object to prevent confusion between `require` from `require.js`, and native `require` syntax;
+please use `requirejs` (an alias function with the same signature) instead, or migrate to ES6-syntax plugins.
+Require.js is not available in the ES6-syntax based plugins.
+
+To migrate to the ES6-compatible syntax:
+- assign the plugin object to a variable, e.g. `const plugin = { /* plugin code without changes */ };`,
+- add `export default plugin;` line,
+- convert `require()` calls to ES6 default imports.
 
 ## Advanced Settings
 
 The Advanced Settings for the Plugin Playground enable you to configure plugins to load every time JupyterLab starts up. Automatically loaded plugins can be configured in two ways:
 
-* `urls` is a list of URLs that will be fetched and loaded as plugins automatically when JupyterLab starts up. For example, you can point to a GitHub gist or a file you host on a local server that serves text files like the above examples.
-* `plugins` is a list of strings of plugin text, like the examples above, that are loaded automatically when JupyterLab starts up. Since JSON strings cannot have multiple lines, you will need to encode any newlines in your plugin text directly as `\n\` (the second backslash is to allow the string to continue on the next line). For example, here is a user setting to encode a small plugin to run at startup:
+- `urls` is a list of URLs that will be fetched and loaded as plugins automatically when JupyterLab starts up. For example, you can point to a GitHub gist or a file you host on a local server that serves text files like the above examples.
+- `plugins` is a list of strings of plugin text, like the examples above, that are loaded automatically when JupyterLab starts up. Since JSON strings cannot have multiple lines, you will need to encode any newlines in your plugin text directly as `\n\` (the second backslash is to allow the string to continue on the next line). For example, here is a user setting to encode a small plugin to run at startup:
   ```json5
   {
     plugins: [

RELEASE.md

@@ -2,6 +2,8 @@
 
 The extension can be published to `PyPI` and `npm` manually or using the [Jupyter Releaser](https://github.com/jupyter-server/jupyter_releaser).
 
+To refresh the packages list run `python scripts/modules.py` with the target version of JupyterLab installed.
+
 ## Manual release
 
 ### Python package

binder/overrides.json

@@ -1,4 +1,7 @@
 {
+  "@krassowski/jupyterlab-lsp:plugin": {
+    "loggingLevel": "error"
+  },
   "@krassowski/jupyterlab-lsp:completion": {
     "layout": "detail-below"
   }

binder/postBuild

@@ -52,5 +52,8 @@ SETTINGS = Path(sys.prefix) / "share/jupyter/lab/settings"
 SETTINGS.mkdir(parents=True, exist_ok=True)
 shutil.copy2("binder/overrides.json", SETTINGS / "overrides.json")
 
+# download examples
+_("git", "clone", "https://github.com/jupyterlab/extension-examples.git")
+
 print("JupyterLab with @jupyterlab/plugin-playground is ready to run with:\n")
 print("\tjupyter lab\n")

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@jupyterlab/plugin-playground",
   "version": "0.3.0",
-  "description": "A JupyterLab extension.",
+  "description": "A JupyterLab Plugin Playground.",
   "keywords": [
     "jupyter",
     "jupyterlab",
@@ -37,6 +37,8 @@
     "clean:lib": "rimraf lib tsconfig.tsbuildinfo",
     "clean:labextension": "rimraf jupyterlab_plugin_playground/labextension",
     "clean:all": "jlpm run clean:lib && jlpm run clean:labextension",
+    "prettier": "prettier --list-different --write \"**/*{.ts,.tsx,.css,.json}\"",
+    "lint": "jlpm prettier && jlpm eslint",
     "eslint": "eslint . --ext .ts,.tsx --fix",
     "eslint:check": "eslint . --ext .ts,.tsx",
     "install:extension": "jlpm run build",
@@ -45,19 +47,45 @@
     "watch:labextension": "jupyter labextension watch ."
   },
   "dependencies": {
+    "@jupyter-widgets/base": "^4.0.0",
     "@jupyterlab/application": "^3.0.0",
     "@jupyterlab/apputils": "^3.0.0",
     "@jupyterlab/fileeditor": "^3.0.0",
     "@jupyterlab/settingregistry": "^3.0.0",
-    "@jupyter-widgets/base": "^4.0.0"
+    "requirejs": "^2.3.6",
+    "raw-loader": "^4.0.2",
+    "typescript": "~4.1.3"
   },
   "devDependencies": {
     "@jupyterlab/builder": "^3.0.0",
+    "@jupyterlab/completer": "^3.2.5",
+    "@jupyterlab/console": "^3.2.5",
+    "@jupyterlab/debugger": "^3.2.5",
+    "@jupyterlab/docmanager": "^3.2.5",
+    "@jupyterlab/documentsearch": "^3.2.5",
+    "@jupyterlab/extensionmanager": "^3.2.5",
+    "@jupyterlab/filebrowser": "^3.2.5",
+    "@jupyterlab/imageviewer": "^3.2.5",
+    "@jupyterlab/inspector": "^3.2.5",
+    "@jupyterlab/launcher": "^3.2.5",
+    "@jupyterlab/logconsole": "^3.2.5",
+    "@jupyterlab/mainmenu": "^3.2.5",
+    "@jupyterlab/markdownviewer": "^3.2.5",
+    "@jupyterlab/notebook": "^3.2.5",
+    "@jupyterlab/settingeditor": "^3.2.5",
+    "@jupyterlab/terminal": "^3.2.5",
+    "@jupyterlab/toc": "^5.2.5",
+    "@jupyterlab/tooltip": "^3.2.5",
+    "@lumino/datagrid": "^0.34.1",
+    "@types/codemirror": "^5.6.20",
+    "@types/react": "^17.0.0",
+    "@types/react-dom": "^17.0.0",
+    "@types/requirejs": "^2.1.34",
     "@typescript-eslint/eslint-plugin": "^4.8.1",
     "@typescript-eslint/parser": "^4.8.1",
     "eslint": "^7.14.0",
     "eslint-config-prettier": "^6.15.0",
-    "eslint-plugin-prettier": "^3.1.4", 
+    "eslint-plugin-prettier": "^3.1.4",
     "npm-run-all": "^4.1.5",
     "prettier": "^2.1.1",
     "rimraf": "^3.0.2",
@@ -68,7 +96,8 @@
     "style/index.js"
   ],
   "styleModule": "style/index.js",
-  "jupyterlab": { 
+  "jupyterlab": {
+    "webpackConfig": "./webpack.config.js",
     "extension": true,
     "outputDir": "jupyterlab_plugin_playground/labextension",
     "schemaDir": "schema"

schema/plugin.json

@@ -1,6 +1,21 @@
 {
   "title": "Plugin Playground",
+  "jupyter.lab.setting-icon": "ui-components:extension",
+  "jupyter.lab.setting-icon-label": "Plugin Playground",
   "properties": {
+    "allowCDN": {
+      "title": "Allow execution from CDN?",
+      "description": "Whether to allow execution of modules directly from CDN. The accepted values are `never` and `always-insecure`.",
+      "type": "string",
+      "enum": ["awaiting-decision", "always-insecure", "never"],
+      "default": "awaiting-decision"
+    },
+    "requirejsCDN": {
+      "title": "Base URL of a CDN for requirejs",
+      "description": "URL from which the unknown packages should be loaded, e.g. https://unpkg.com/",
+      "default": "https://cdn.jsdelivr.net/npm/",
+      "type": "string"
+    },
     "urls": {
       "title": "Plugin URLs",
       "description": "List of URL strings that will be fetched and loaded as plugins automatically on startup.",
@@ -10,6 +25,12 @@
         "type": "string"
       }
     },
+    "showIconInLauncher": {
+      "title": "Show icon in launcher",
+      "description": "Whether to show the Plugin Playground icon in the lanucher.",
+      "default": true,
+      "type": "boolean"
+    },
     "plugins": {
       "title": "Plugins",
       "description": "List of strings of plugin text to load automatically. Line breaks are encoded as '\\n'",
@@ -18,8 +39,81 @@
       "items": {
         "type": "string"
       }
+    },
+    "toolbar": {
+      "title": "Toolbar items (for JupyterLab 3.3+)",
+      "items": {
+        "$ref": "#/definitions/toolbarItem"
+      },
+      "type": "array",
+      "default": []
     }
   },
-  "additionalProperties": false,
-  "type": "object"
-}
+  "jupyter.lab.transform": false,
+  "jupyter.lab.toolbars": {
+    "Editor": [
+      {
+        "name": "insert",
+        "command": "plugin-playground:load-as-extension",
+        "rank": 20
+      }
+    ]
+  },
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "plugin-playground:load-as-extension",
+      "keys": ["Ctrl Alt C"],
+      "selector": ".jp-Editor"
+    }
+  ],
+  "additionalProperties": true,
+  "type": "object",
+  "definitions": {
+    "toolbarItem": {
+      "properties": {
+        "name": {
+          "title": "Unique name",
+          "type": "string"
+        },
+        "args": {
+          "title": "Command arguments",
+          "type": "object"
+        },
+        "command": {
+          "title": "Command id",
+          "type": "string",
+          "default": ""
+        },
+        "disabled": {
+          "title": "Whether the item is ignored or not",
+          "type": "boolean",
+          "default": false
+        },
+        "icon": {
+          "title": "Item icon id",
+          "description": "If defined, it will override the command icon",
+          "type": "string"
+        },
+        "label": {
+          "title": "Item label",
+          "description": "If defined, it will override the command label",
+          "type": "string"
+        },
+        "type": {
+          "title": "Item type",
+          "type": "string",
+          "enum": ["command", "spacer"]
+        },
+        "rank": {
+          "title": "Item rank",
+          "type": "number",
+          "minimum": 0,
+          "default": 50
+        }
+      },
+      "required": ["name"],
+      "additionalProperties": false,
+      "type": "object"
+    }
+  }
+}