chore: merge blocksuite source code (#9213)

blocksuite/affine/block-surface/src/surface-service.ts

@@ -0,0 +1,35 @@
+import { BlockService } from '@blocksuite/block-std';
+import { GfxControllerIdentifier } from '@blocksuite/block-std/gfx';
+
+import { type SurfaceBlockModel, SurfaceBlockSchema } from './surface-model.js';
+
+export class SurfaceBlockService extends BlockService {
+  static override readonly flavour = SurfaceBlockSchema.model.flavour;
+
+  surface!: SurfaceBlockModel;
+
+  get layer() {
+    return this.std.get(GfxControllerIdentifier).layer;
+  }
+
+  override mounted(): void {
+    super.mounted();
+
+    this.surface = this.doc.getBlockByFlavour(
+      'affine:surface'
+    )[0] as SurfaceBlockModel;
+
+    if (!this.surface) {
+      const disposable = this.doc.slots.blockUpdated.on(payload => {
+        if (payload.flavour === 'affine:surface') {
+          disposable.dispose();
+          const surface = this.doc.getBlockById(
+            payload.id
+          ) as SurfaceBlockModel | null;
+          if (!surface) return;
+          this.surface = surface;
+        }
+      });
+    }
+  }
+}