chore: merge blocksuite source code (#9213)

blocksuite/framework/block-std/src/extension/block-view.ts

@@ -0,0 +1,32 @@
+import { BlockViewIdentifier } from '../identifier.js';
+import type { BlockViewType } from '../spec/type.js';
+import type { ExtensionType } from './extension.js';
+
+/**
+ * Create a block view extension.
+ *
+ * @param flavour The flavour of the block that the view is for.
+ * @param view Lit literal template for the view. Example: `my-list-block`
+ *
+ * The view is a lit template that is used to render the block.
+ *
+ * @example
+ * ```ts
+ * import { BlockViewExtension } from '@blocksuite/block-std';
+ *
+ * const MyListBlockViewExtension = BlockViewExtension(
+ *   'affine:list',
+ *   literal`my-list-block`
+ * );
+ * ```
+ */
+export function BlockViewExtension(
+  flavour: BlockSuite.Flavour,
+  view: BlockViewType
+): ExtensionType {
+  return {
+    setup: di => {
+      di.addImpl(BlockViewIdentifier(flavour), () => view);
+    },
+  };
+}