chore: merge blocksuite source code (#9213)

blocksuite/playground/apps/starter/data/heavy.ts

@@ -0,0 +1,35 @@
+import { type DocCollection, Text } from '@blocksuite/store';
+
+import type { InitFn } from './utils.js';
+
+const params = new URLSearchParams(location.search);
+
+export const heavy: InitFn = (collection: DocCollection, docId: string) => {
+  const count = Number(params.get('count')) || 1000;
+
+  const doc = collection.createDoc({ id: docId });
+  doc.load(() => {
+    // Add root block and surface block at root level
+    const rootId = doc.addBlock('affine:page', {
+      title: new Text(),
+    });
+    doc.addBlock('affine:surface', {}, rootId);
+
+    // Add note block inside root block
+    const noteId = doc.addBlock('affine:note', {}, rootId);
+    for (let i = 0; i < count; i++) {
+      // Add paragraph block inside note block
+      doc.addBlock(
+        'affine:paragraph',
+        {
+          text: new Text('Hello, world! ' + i),
+        },
+        noteId
+      );
+    }
+  });
+};
+
+heavy.id = 'heavy';
+heavy.displayName = 'Heavy Example';
+heavy.description = 'Heavy example on thousands of paragraph blocks';