Fix json/yaml rendering

.eslintrc.js

@@ -34,6 +34,7 @@ module.exports = {
     ],
     '@typescript-eslint/no-unused-vars': ['warn', { args: 'none' }],
     '@typescript-eslint/no-explicit-any': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
     '@typescript-eslint/no-namespace': 'off',
     '@typescript-eslint/no-var-requires': 'off',
     '@typescript-eslint/no-use-before-define': 'off',

notebooks/yaml.ipynb

@@ -0,0 +1,54 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d956aba2-61bc-43b8-810c-82aa31b2af44",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from IPython.display import Markdown, clear_output\n",
+    "from ipywidgets import ToggleButton, Output\n",
+    "import json\n",
+    "import yaml\n",
+    "\n",
+    "STR_JSON=\"\"\"{\"hey\": {\n",
+    "  \"1\": \"hi\",\n",
+    "  \"2\": \"yo\",\n",
+    "  \"a\": {\n",
+    "    \"b\": [\n",
+    "      {\"value\": \"3\"},\n",
+    "      {\"value\": \"5\"},\n",
+    "      {\"value\": \"5\"}\n",
+    "    ]\n",
+    "  }\n",
+    "}}\"\"\"\n",
+    "\n",
+    "parsed = json.loads(STR_JSON)            \n",
+    "s = yaml.dump(parsed, indent=2)\n",
+    "display(Markdown(\"\\n```yaml\\n\" + s + \"\\n```\")) "
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

packages/voila/package.json

@@ -12,6 +12,7 @@
     "@jupyterlab/application": "^4.0.0",
     "@jupyterlab/apputils": "^4.0.0",
     "@jupyterlab/apputils-extension": "^4.0.0",
+    "@jupyterlab/codemirror": "^4.0.3",
     "@jupyterlab/codemirror-extension": "^4.0.0",
     "@jupyterlab/coreutils": "^6.0.0",
     "@jupyterlab/docregistry": "^4.0.0",
@@ -47,7 +48,8 @@
     "@lumino/virtualdom": "^2.0.0",
     "@lumino/widgets": "^2.0.0",
     "react": "^18.2.0",
-    "react-dom": "^18.2.0"
+    "react-dom": "^18.2.0",
+    "style-mod": "^4.0.3"
   },
   "devDependencies": {
     "@jupyterlab/builder": "^4.0.0",

packages/voila/src/plugins/themes/index.ts

@@ -6,11 +6,13 @@
  *                                                                          *
  * The full license is in the file LICENSE, distributed with this software. *
  ****************************************************************************/
+import { StyleModule } from 'style-mod';
 import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import { IThemeManager } from '@jupyterlab/apputils';
+import { jupyterHighlightStyle } from '@jupyterlab/codemirror';
 import { PageConfig, URLExt } from '@jupyterlab/coreutils';
 import { ThemeManager } from './thememanager';
 
@@ -62,6 +64,10 @@ export const themePlugin: JupyterFrontEndPlugin<void> = {
     app: JupyterFrontEnd,
     themeManager: IThemeManager | null
   ) => {
+    if (jupyterHighlightStyle.module) {
+      StyleModule.mount(document, jupyterHighlightStyle.module);
+    }
+
     if (!themeManager) {
       return;
     }

packages/voila/webpack.config.js

@@ -13,6 +13,10 @@ const baseConfig = require('@jupyterlab/builder/lib/webpack.config.base');
 const data = require('./package.json');
 
 const names = Object.keys(data.dependencies).filter((name) => {
+  if (name === 'style-mod') {
+    return false;
+  }
+
   const packageData = require(path.join(name, 'package.json'));
   return packageData.jupyterlab !== undefined;
 });

ui-tests/tests/voila.test.ts

@@ -339,4 +339,11 @@ test.describe('Voila performance Tests', () => {
     await addBenchmarkToTest(notebookName, testFunction, testInfo, browserName);
     expect(await page.screenshot()).toMatchSnapshot(`${notebookName}.png`);
   });
+
+  test('Render yaml.ipynb', async ({ page, browserName }, testInfo) => {
+    const notebookName = 'yaml';
+    await page.goto(`/voila/render/${notebookName}.ipynb`);
+    await page.waitForSelector('span >> text=hey');
+    expect(await page.screenshot()).toMatchSnapshot(`${notebookName}.png`);
+  });
 });

yarn.lock

@@ -5199,6 +5199,7 @@ __metadata:
     "@jupyterlab/apputils": ^4.0.0
     "@jupyterlab/apputils-extension": ^4.0.0
     "@jupyterlab/builder": ^4.0.0
+    "@jupyterlab/codemirror": ^4.0.3
     "@jupyterlab/codemirror-extension": ^4.0.0
     "@jupyterlab/coreutils": ^6.0.0
     "@jupyterlab/docregistry": ^4.0.0
@@ -5243,6 +5244,7 @@ __metadata:
     react-dom: ^18.2.0
     rimraf: ^3.0.2
     style-loader: ~3.3.1
+    style-mod: ^4.0.3
     tsc-watch: ^6.0.0
     typescript: ~5.0.2
     watch: ^1.0.2
@@ -15358,7 +15360,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"style-mod@npm:^4.0.0":
+"style-mod@npm:^4.0.0, style-mod@npm:^4.0.3":
   version: 4.0.3
   resolution: "style-mod@npm:4.0.3"
   checksum: 934556e720bd29026ff8fef43a1a35b58957813025b91f996d886e9405acf934ddb1934def4400b174bd7784c9263eb9c71f07ae83925af9271b7d921d546854