wip

packages/shared_preferences/shared_preferences_web/lib/shared_preferences_web.dart

@@ -4,11 +4,11 @@
 
 import 'dart:async';
 import 'dart:convert' show json;
-import 'dart:html' as html;
 
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
 import 'package:shared_preferences_platform_interface/shared_preferences_platform_interface.dart';
 import 'package:shared_preferences_platform_interface/types.dart';
+import 'package:web/web.dart' as html;
 
 /// The web implementation of [SharedPreferencesStorePlatform].
 ///
@@ -42,8 +42,11 @@ class SharedPreferencesPlugin extends SharedPreferencesStorePlatform {
     // IMPORTANT: Do not use html.window.localStorage.clear() as that will
     //            remove _all_ local data, not just the keys prefixed with
     //            _prefix
-    _getFilteredKeys(filter.prefix, allowList: filter.allowList)
-        .forEach(html.window.localStorage.remove);
+    // ignore: prefer_foreach
+    for (final String item
+        in _getFilteredKeys(filter.prefix, allowList: filter.allowList)) {
+      html.window.localStorage.removeItem(item);
+    }
     return true;
   }
 
@@ -69,29 +72,33 @@ class SharedPreferencesPlugin extends SharedPreferencesStorePlatform {
     final Map<String, Object> allData = <String, Object>{};
     for (final String key
         in _getFilteredKeys(filter.prefix, allowList: filter.allowList)) {
-      allData[key] = _decodeValue(html.window.localStorage[key]!);
+      allData[key] = _decodeValue(html.window.localStorage.getItem(key)!);
     }
     return allData;
   }
 
   @override
   Future<bool> remove(String key) async {
-    html.window.localStorage.remove(key);
+    html.window.localStorage.removeItem(key);
     return true;
   }
 
   @override
   Future<bool> setValue(String valueType, String key, Object? value) async {
-    html.window.localStorage[key] = _encodeValue(value);
+    html.window.localStorage.setItem(key, _encodeValue(value));
     return true;
   }
 
   Iterable<String> _getFilteredKeys(
     String prefix, {
     Set<String>? allowList,
-  }) {
-    return html.window.localStorage.keys.where((String key) =>
-        key.startsWith(prefix) && (allowList?.contains(key) ?? true));
+  }) sync* {
+    for (int i = 0; i < html.window.localStorage.length; i++) {
+      final String key = html.window.localStorage.key(i)!;
+      if (key.startsWith(prefix) && (allowList?.contains(key) ?? true)) {
+        yield key;
+      }
+    }
   }
 
   String _encodeValue(Object? value) {

packages/shared_preferences/shared_preferences_web/pubspec.yaml

@@ -22,6 +22,7 @@ dependencies:
   flutter_web_plugins:
     sdk: flutter
   shared_preferences_platform_interface: ^2.3.0
+  web: ^0.1.4-beta
 
 dev_dependencies:
   flutter_test: