feat(editor): add sidebar service (#9761)

blocksuite/affine/shared/src/services/index.ts

@@ -13,5 +13,6 @@ export * from './open-doc-config';
 export * from './page-viewport-service';
 export * from './parse-url-service';
 export * from './quick-search-service';
+export * from './sidebar-service';
 export * from './telemetry-service';
 export * from './theme-service';

blocksuite/affine/shared/src/services/sidebar-service.ts

@@ -0,0 +1,18 @@
+import { createIdentifier } from '@blocksuite/global/di';
+import type { ExtensionType } from '@blocksuite/store';
+
+export interface SidebarService {
+  open: (tabId?: string) => void;
+  close: () => void;
+  getTabIds: () => string[];
+}
+
+export const SidebarExtensionIdentifier = createIdentifier<SidebarService>(
+  'AffineSidebarExtension'
+);
+
+export const SidebarExtension = (service: SidebarService): ExtensionType => ({
+  setup: di => {
+    di.addImpl(SidebarExtensionIdentifier, () => service);
+  },
+});