From 310000aad216b6609c031c3296e7effff79c3915 Mon Sep 17 00:00:00 2001
From: Aran Donohue <aran@arandonohue.com>
Date: Wed, 4 Dec 2024 09:00:49 -0800
Subject: [PATCH] Convert grpc-web example to package:web

---
 example/grpc-web/lib/app.dart  | 27 ++++++++++++++++++---------
 example/grpc-web/pubspec.yaml  |  1 +
 example/grpc-web/web/main.dart |  9 ++++-----
 3 files changed, 23 insertions(+), 14 deletions(-)

diff --git a/example/grpc-web/lib/app.dart b/example/grpc-web/lib/app.dart
index fce83c51..8c0d9829 100644
--- a/example/grpc-web/lib/app.dart
+++ b/example/grpc-web/lib/app.dart
@@ -14,8 +14,7 @@
 // limitations under the License.
 
 import 'dart:async';
-import 'dart:html';
-
+import 'package:web/web.dart';
 import 'src/generated/echo.pbgrpc.dart';
 
 class EchoApp {
@@ -56,13 +55,23 @@ class EchoApp {
   }
 
   void _addMessage(String message, String cssClass) {
-    final classes = cssClass.split(' ');
-    querySelector('#first')!.after(DivElement()
-      ..classes.add('row')
-      ..append(Element.tag('h2')
-        ..append(SpanElement()
-          ..classes.add('label')
-          ..classes.addAll(classes)
+    document.querySelector('#first')!.after(HTMLDivElement()
+      ..classList.add('row')
+      ..append(HTMLHeadingElement.h2()
+        ..append(HTMLSpanElement()
+          ..classList.add('label')
+          ..classList.addAll(cssClass)
           ..text = message)));
   }
 }
+
+// The documentation of DOMTokenList.add implies it can handle multiple classes,
+// but in Chrome at least it does not.
+extension AddAll on DOMTokenList {
+  void addAll(String cssClass) {
+    final classes = cssClass.split(' ');
+    for (final c in classes) {
+      add(c);
+    }
+  }
+}
diff --git a/example/grpc-web/pubspec.yaml b/example/grpc-web/pubspec.yaml
index e215c131..11ffa8e5 100644
--- a/example/grpc-web/pubspec.yaml
+++ b/example/grpc-web/pubspec.yaml
@@ -9,6 +9,7 @@ dependencies:
   grpc:
     path: ../../
   protobuf: ^3.0.0
+  web: ^1.1.0
 
 dev_dependencies:
   build_runner: ^2.0.0
diff --git a/example/grpc-web/web/main.dart b/example/grpc-web/web/main.dart
index 24da3b6c..997a4bd3 100644
--- a/example/grpc-web/web/main.dart
+++ b/example/grpc-web/web/main.dart
@@ -12,21 +12,20 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-import 'dart:html';
-
 import 'package:grpc/grpc_web.dart';
 import 'package:grpc_web/app.dart';
 import 'package:grpc_web/src/generated/echo.pbgrpc.dart';
+import 'package:web/web.dart';
 
 void main() {
   final channel = GrpcWebClientChannel.xhr(Uri.parse('http://localhost:8080'));
   final service = EchoServiceClient(channel);
   final app = EchoApp(service);
 
-  final button = querySelector('#send') as ButtonElement;
+  final button = document.querySelector('#send') as HTMLButtonElement;
   button.onClick.listen((e) async {
-    final msg = querySelector('#msg') as TextInputElement;
-    final value = msg.value!.trim();
+    final msg = document.querySelector('#msg') as HTMLInputElement;
+    final value = msg.value.trim();
     msg.value = '';
 
     if (value.isEmpty) return;