TypeCellOS · nperez0111 · Sep 5, 2025
diff --git a/docs/package.json b/docs/package.json
@@ -102,7 +102,9 @@
     "y-partykit": "^0.0.25",
     "yjs": "^13.6.27",
     "zod": "^3.25.67",
-    "zustand": "^5.0.3"
+    "zustand": "^5.0.3",
+    "@blocknote/math": "latest",
+    "katex": "^0.16.22"
   },
   "devDependencies": {
     "@blocknote/ariakit": "workspace:^",

diff --git a/examples/01-basic/14-math/.bnexample.json b/examples/01-basic/14-math/.bnexample.json
@@ -0,0 +1,10 @@
+{
+  "playground": true,
+  "docs": true,
+  "author": "nperez0111",
+  "tags": ["Basic"],
+  "dependencies": {
+    "@blocknote/math": "latest",
+    "katex": "^0.16.22"
+  }
+}
diff --git a/examples/01-basic/14-math/README.md b/examples/01-basic/14-math/README.md
@@ -0,0 +1,3 @@
+# Math Block
+
+TODO
diff --git a/examples/01-basic/14-math/index.html b/examples/01-basic/14-math/index.html
@@ -0,0 +1,14 @@
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Math Block</title>
+    <script>
+      <!-- AUTO-GENERATED FILE, DO NOT EDIT DIRECTLY -->
+    </script>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="./main.tsx"></script>
+  </body>
+</html>
diff --git a/examples/01-basic/14-math/main.tsx b/examples/01-basic/14-math/main.tsx
@@ -0,0 +1,11 @@
+// AUTO-GENERATED FILE, DO NOT EDIT DIRECTLY
+import React from "react";
+import { createRoot } from "react-dom/client";
+import App from "./src/App.jsx";
+
+const root = createRoot(document.getElementById("root")!);
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
diff --git a/examples/01-basic/14-math/package.json b/examples/01-basic/14-math/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "@blocknote/example-basic-math",
+  "description": "AUTO-GENERATED FILE, DO NOT EDIT DIRECTLY",
+  "private": true,
+  "version": "0.12.4",
+  "scripts": {
+    "start": "vite",
+    "dev": "vite",
+    "build:prod": "tsc && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@blocknote/core": "latest",
+    "@blocknote/react": "latest",
+    "@blocknote/ariakit": "latest",
+    "@blocknote/mantine": "latest",
+    "@blocknote/shadcn": "latest",
+    "react": "^19.1.0",
+    "react-dom": "^19.1.0",
+    "@blocknote/math": "latest",
+    "katex": "^0.16.22"
+  },
+  "devDependencies": {
+    "@types/react": "^19.1.0",
+    "@types/react-dom": "^19.1.0",
+    "@vitejs/plugin-react": "^4.3.1",
+    "vite": "^5.3.4"
+  }
+}
diff --git a/examples/01-basic/14-math/src/App.tsx b/examples/01-basic/14-math/src/App.tsx
@@ -0,0 +1,43 @@
+import { BlockNoteSchema, createCodeBlockSpec } from "@blocknote/core";
+import "@blocknote/core/fonts/inter.css";
+import { BlockNoteView } from "@blocknote/mantine";
+import "@blocknote/mantine/style.css";
+import { useCreateBlockNote } from "@blocknote/react";
+import { createMathBlockSpec } from "@blocknote/math";
+import "katex/dist/katex.min.css";
+import { useEffect } from "react";
+
+export default function App() {
+  // Creates a new editor instance.
+  const editor = useCreateBlockNote({
+    schema: BlockNoteSchema.create().extend({
+      blockSpecs: {
+        math: createMathBlockSpec(),
+      },
+    }),
+    initialContent: [
+      {
+        type: "paragraph",
+        content: "Checkout this math!",
+      },
+      {
+        type: "math",
+        props: {
+          expression: "2x^2",
+        },
+      },
+      {
+        type: "paragraph",
+      },
+    ],
+  });
+  useEffect(() => {
+    return editor.onChange(() => {
+      console.log(editor.blocksToFullHTML(editor.document));
+      console.log(editor.blocksToHTMLLossy(editor.document));
+    });
+  }, []);
+
+  // Renders the editor instance using a React component.
+  return <BlockNoteView editor={editor} />;
+}
diff --git a/examples/01-basic/14-math/tsconfig.json b/examples/01-basic/14-math/tsconfig.json
@@ -0,0 +1,36 @@
+{
+  "__comment": "AUTO-GENERATED FILE, DO NOT EDIT DIRECTLY",
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "lib": [
+      "DOM",
+      "DOM.Iterable",
+      "ESNext"
+    ],
+    "allowJs": false,
+    "skipLibCheck": true,
+    "esModuleInterop": false,
+    "allowSyntheticDefaultImports": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx",
+    "composite": true
+  },
+  "include": [
+    "."
+  ],
+  "__ADD_FOR_LOCAL_DEV_references": [
+    {
+      "path": "../../../packages/core/"
+    },
+    {
+      "path": "../../../packages/react/"
+    }
+  ]
+}
diff --git a/examples/01-basic/14-math/vite.config.ts b/examples/01-basic/14-math/vite.config.ts
@@ -0,0 +1,32 @@
+// AUTO-GENERATED FILE, DO NOT EDIT DIRECTLY
+import react from "@vitejs/plugin-react";
+import * as fs from "fs";
+import * as path from "path";
+import { defineConfig } from "vite";
+// import eslintPlugin from "vite-plugin-eslint";
+// https://vitejs.dev/config/
+export default defineConfig((conf) => ({
+  plugins: [react()],
+  optimizeDeps: {},
+  build: {
+    sourcemap: true,
+  },
+  resolve: {
+    alias:
+      conf.command === "build" ||
+      !fs.existsSync(path.resolve(__dirname, "../../packages/core/src"))
+        ? {}
+        : ({
+            // Comment out the lines below to load a built version of blocknote
+            // or, keep as is to load live from sources with live reload working
+            "@blocknote/core": path.resolve(
+              __dirname,
+              "../../packages/core/src/"
+            ),
+            "@blocknote/react": path.resolve(
+              __dirname,
+              "../../packages/react/src/"
+            ),
+          } as any),
+  },
+}));
diff --git a/packages/core/src/extensions/FormattingToolbar/FormattingToolbarPlugin.ts b/packages/core/src/extensions/FormattingToolbar/FormattingToolbarPlugin.ts
@@ -191,6 +191,7 @@ export class FormattingToolbarView implements PluginView {
       from,
       to,
     });
+    console.log({ shouldShow });
 
     // in jsdom, Range.prototype.getClientRects is not implemented,
     // this would cause `getSelectionBoundingBox` to fail

diff --git a/packages/math/.gitignore b/packages/math/.gitignore
@@ -0,0 +1,23 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
-Original file line number
+Diff line change
@@ Expand Up / @@ -191,6 +191,7 @@ export class FormattingToolbarView implements PluginView { @@
           from,
           to,
         });
+        console.log({ shouldShow });
         // in jsdom, Range.prototype.getClientRects is not implemented,
         // this would cause `getSelectionBoundingBox` to fail
@@ Expand Down @@