refactor(editor): extract attachment block (#9308)

blocksuite/affine/block-attachment/src/attachment-spec.ts

@@ -0,0 +1,30 @@
+import {
+  BlockViewExtension,
+  type ExtensionType,
+  FlavourExtension,
+} from '@blocksuite/block-std';
+import { literal } from 'lit/static-html.js';
+
+import { AttachmentBlockNotionHtmlAdapterExtension } from './adapters/notion-html.js';
+import {
+  AttachmentBlockService,
+  AttachmentDropOption,
+} from './attachment-service.js';
+import {
+  AttachmentEmbedConfigExtension,
+  AttachmentEmbedService,
+} from './embed.js';
+
+export const AttachmentBlockSpec: ExtensionType[] = [
+  FlavourExtension('affine:attachment'),
+  AttachmentBlockService,
+  BlockViewExtension('affine:attachment', model => {
+    return model.parent?.flavour === 'affine:surface'
+      ? literal`affine-edgeless-attachment`
+      : literal`affine-attachment`;
+  }),
+  AttachmentDropOption,
+  AttachmentEmbedConfigExtension(),
+  AttachmentEmbedService,
+  AttachmentBlockNotionHtmlAdapterExtension,
+];