Web: Enable PowerSync extensions even without worker

Author: simolus3

packages/powersync_core/lib/src/open_factory/web/web_open_factory.dart

@@ -3,15 +3,29 @@ import 'dart:async';
 import 'package:powersync_core/src/open_factory/abstract_powersync_open_factory.dart';
 import 'package:powersync_core/src/uuid.dart';
 import 'package:sqlite_async/sqlite3_common.dart';
+import 'package:sqlite_async/sqlite3_web.dart';
 import 'package:sqlite_async/sqlite_async.dart';
+import 'package:sqlite_async/web.dart';
+
+import '../../web/worker_utils.dart';
 
 /// Web implementation for [AbstractPowerSyncOpenFactory]
-class PowerSyncOpenFactory extends AbstractPowerSyncOpenFactory {
+class PowerSyncOpenFactory extends AbstractPowerSyncOpenFactory
+    implements WebSqliteOpenFactory {
   PowerSyncOpenFactory({
     required super.path,
     super.sqliteOptions,
   });
 
+  @override
+  Future<WebSqlite> openWebSqlite(WebSqliteOptions options) async {
+    return WebSqlite.open(
+      wasmModule: Uri.parse(sqliteOptions.webSqliteOptions.wasmUri),
+      worker: Uri.parse(sqliteOptions.webSqliteOptions.workerUri),
+      controller: PowerSyncAsyncSqliteController(),
+    );
+  }
+
   @override
   void enableExtension() {
     // No op for web

packages/powersync_core/lib/src/web/powersync_db.worker.dart

@@ -4,30 +4,10 @@
 
 library;
 
-import 'dart:js_interop';
-
-import 'package:sqlite_async/sqlite3_web_worker.dart';
 import 'package:sqlite_async/sqlite3_web.dart';
-import 'package:sqlite_async/sqlite3_wasm.dart';
 
 import 'worker_utils.dart';
 
 void main() {
   WebSqlite.workerEntrypoint(controller: PowerSyncAsyncSqliteController());
 }
-
-final class PowerSyncAsyncSqliteController extends AsyncSqliteController {
-  @override
-  Future<WorkerDatabase> openDatabase(
-      WasmSqlite3 sqlite3, String path, String vfs) async {
-    final asyncDb = await super.openDatabase(sqlite3, path, vfs);
-    setupPowerSyncDatabase(asyncDb.database);
-    return asyncDb;
-  }
-
-  @override
-  Future<JSAny?> handleCustomRequest(
-      ClientConnection connection, JSAny? request) {
-    throw UnimplementedError();
-  }
-}

packages/powersync_core/lib/src/web/worker_utils.dart

@@ -1,7 +1,27 @@
-import 'package:powersync_core/sqlite3_common.dart';
+import 'dart:js_interop';
+
 import 'package:powersync_core/src/open_factory/common_db_functions.dart';
+import 'package:sqlite_async/sqlite3_wasm.dart';
+import 'package:sqlite_async/sqlite3_web.dart';
+import 'package:sqlite_async/sqlite3_web_worker.dart';
 import 'package:uuid/uuid.dart';
 
+final class PowerSyncAsyncSqliteController extends AsyncSqliteController {
+  @override
+  Future<WorkerDatabase> openDatabase(
+      WasmSqlite3 sqlite3, String path, String vfs) async {
+    final asyncDb = await super.openDatabase(sqlite3, path, vfs);
+    setupPowerSyncDatabase(asyncDb.database);
+    return asyncDb;
+  }
+
+  @override
+  Future<JSAny?> handleCustomRequest(
+      ClientConnection connection, JSAny? request) {
+    throw UnimplementedError();
+  }
+}
+
 // Registers custom SQLite functions for the SQLite connection
 void setupPowerSyncDatabase(CommonDatabase database) {
   setupCommonDBFunctions(database);