chore: merge blocksuite source code (#9213)

blocksuite/framework/sync/src/blob/impl/indexeddb.ts

@@ -0,0 +1,39 @@
+import { createStore, del, get, keys, set } from 'idb-keyval';
+
+import type { BlobSource } from '../source.js';
+
+export class IndexedDBBlobSource implements BlobSource {
+  readonly mimeTypeStore = createStore(`${this.name}_blob_mime`, 'blob_mime');
+
+  readonly = false;
+
+  readonly store = createStore(`${this.name}_blob`, 'blob');
+
+  constructor(readonly name: string) {}
+
+  async delete(key: string) {
+    await del(key, this.store);
+    await del(key, this.mimeTypeStore);
+  }
+
+  async get(key: string) {
+    const res = await get<ArrayBuffer>(key, this.store);
+    if (res) {
+      return new Blob([res], {
+        type: await get(key, this.mimeTypeStore),
+      });
+    }
+    return null;
+  }
+
+  async list() {
+    const list = await keys<string>(this.store);
+    return list;
+  }
+
+  async set(key: string, value: Blob) {
+    await set(key, await value.arrayBuffer(), this.store);
+    await set(key, value.type, this.mimeTypeStore);
+    return key;
+  }
+}