chore: merge blocksuite source code (#9213)

blocksuite/affine/model/src/blocks/root/index.ts

@@ -0,0 +1 @@
+export * from './root-block-model.js';

blocksuite/affine/model/src/blocks/root/root-block-model.ts

@@ -0,0 +1,45 @@
+import type { Text } from '@blocksuite/store';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+export type RootBlockProps = {
+  title: Text;
+};
+
+export class RootBlockModel extends BlockModel<RootBlockProps> {
+  constructor() {
+    super();
+    this.created.once(() => {
+      this.doc.slots.rootAdded.on(id => {
+        const model = this.doc.getBlockById(id);
+        if (model instanceof RootBlockModel) {
+          const newDocMeta = this.doc.collection.meta.getDocMeta(model.doc.id);
+          if (!newDocMeta || newDocMeta.title !== model.title.toString()) {
+            this.doc.collection.setDocMeta(model.doc.id, {
+              title: model.title.toString(),
+            });
+          }
+        }
+      });
+    });
+  }
+}
+
+export const RootBlockSchema = defineBlockSchema({
+  flavour: 'affine:page',
+  props: (internal): RootBlockProps => ({
+    title: internal.Text(),
+  }),
+  metadata: {
+    version: 2,
+    role: 'root',
+  },
+  toModel: () => new RootBlockModel(),
+});
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:page': RootBlockModel;
+    }
+  }
+}