Use package:http, drop dart:html (#1038)

* Use package:http, drop dart:html

* Format

.gitignore

@@ -14,6 +14,6 @@ coverage/
 .project
 
 # golden failure diffs
-test/failures
+**/test/failures
 # Flutter crash logs
 /flutter_*.log

packages/flutter_svg/CHANGELOG.md

@@ -1,5 +1,10 @@
 # CHANGES
 
+## 2.0.10
+
+- Use package:http for network requests, and allow injection of the client.
+- Bump vector_graphics dependency.
+
 ## 2.0.9
 
 - Adds back `SvgPicture(theme:)` parameter with a deprecation. Although this

packages/flutter_svg/lib/src/loaders.dart

@@ -3,14 +3,14 @@ import 'dart:convert' show utf8;
 import 'package:flutter/foundation.dart' hide compute;
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
+import 'package:http/http.dart' as http;
 import 'package:vector_graphics/vector_graphics.dart';
 import 'package:vector_graphics_compiler/vector_graphics_compiler.dart' as vg;
 
 import '../svg.dart' show svg;
 import 'default_theme.dart';
 import 'utilities/compute.dart';
 import 'utilities/file.dart';
-import 'utilities/http.dart';
 
 /// A theme used when decoding an SVG picture.
 @immutable
@@ -109,6 +109,7 @@ class _DelegateVgColorMapper extends vg.ColorMapper {
 
 /// A [BytesLoader] that parses a SVG data in an isolate and creates a
 /// vector_graphics binary representation.
+@immutable
 abstract class SvgLoader<T> extends BytesLoader {
   /// See class doc.
   const SvgLoader({
@@ -423,17 +424,21 @@ class SvgNetworkLoader extends SvgLoader<Uint8List> {
     this.headers,
     super.theme,
     super.colorMapper,
-  });
+    http.Client? httpClient,
+  }) : _httpClient = httpClient;
 
   /// The [Uri] encoded resource address.
   final String url;
 
   /// Optional HTTP headers to send as part of the request.
   final Map<String, String>? headers;
 
+  final http.Client? _httpClient;
+
   @override
-  Future<Uint8List?> prepareMessage(BuildContext? context) {
-    return httpGet(url, headers: headers);
+  Future<Uint8List?> prepareMessage(BuildContext? context) async {
+    final http.Client client = _httpClient ?? http.Client();
+    return (await client.get(Uri.parse(url), headers: headers)).bodyBytes;
   }
 
   @override

packages/flutter_svg/lib/svg.dart

@@ -2,6 +2,7 @@ import 'dart:ui' as ui;
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
+import 'package:http/http.dart' as http;
 import 'package:vector_graphics/vector_graphics_compat.dart';
 
 import 'src/cache.dart';
@@ -248,7 +249,13 @@ class SvgPicture extends StatelessWidget {
     this.clipBehavior = Clip.hardEdge,
     @deprecated bool cacheColorFilter = false,
     SvgTheme? theme,
-  })  : bytesLoader = SvgNetworkLoader(url, headers: headers, theme: theme),
+    http.Client? httpClient,
+  })  : bytesLoader = SvgNetworkLoader(
+          url,
+          headers: headers,
+          theme: theme,
+          httpClient: httpClient,
+        ),
         colorFilter = colorFilter ?? _getColorFilter(color, colorBlendMode),
         super(key: key);
 

packages/flutter_svg/pubspec.yaml

@@ -2,14 +2,15 @@ name: flutter_svg
 description: An SVG rendering and widget library for Flutter, which allows painting and displaying Scalable Vector Graphics 1.1 files.
 repository: https://github.com/dnfield/flutter_svg/tree/master/packages/flutter_svg
 issue_tracker: https://github.com/dnfield/flutter_svg/issues
-version: 2.0.9
+version: 2.0.10
 
 dependencies:
   flutter:
     sdk: flutter
-  vector_graphics: ^1.1.9+1
-  vector_graphics_codec: ^1.1.9+1
-  vector_graphics_compiler: ^1.1.9+1
+  http: ^1.2.1
+  vector_graphics: ^1.1.11
+  vector_graphics_codec: ^1.1.11
+  vector_graphics_compiler: ^1.1.11
 
 dev_dependencies:
   flutter_test:

packages/flutter_svg/test/widget_svg_test.dart

@@ -1,12 +1,11 @@
-import 'dart:async';
 import 'dart:convert';
-import 'dart:io';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 
 import 'package:flutter_test/flutter_test.dart';
+import 'package:http/http.dart' as http;
 
 class _TolerantComparator extends LocalFileComparator {
   _TolerantComparator(Uri testFile) : super(testFile);
@@ -39,9 +38,6 @@ Future<void> _checkWidgetAndGolden(Key key, String filename) async {
 }
 
 void main() {
-  late FakeHttpClientResponse fakeResponse;
-  late FakeHttpClientRequest fakeRequest;
-  late FakeHttpClient fakeHttpClient;
   final MediaQueryData mediaQueryData =
       MediaQueryData.fromView(PlatformDispatcher.instance.implicitView!);
 
@@ -54,12 +50,6 @@ void main() {
     goldenFileComparator = newComparator;
   });
 
-  setUp(() {
-    fakeResponse = FakeHttpClientResponse();
-    fakeRequest = FakeHttpClientRequest(fakeResponse);
-    fakeHttpClient = FakeHttpClient(fakeRequest);
-  });
-
   testWidgets(
       'SvgPicture does not use a color filtering widget when no color specified',
       (WidgetTester tester) async {
@@ -306,40 +296,41 @@ void main() {
   });
 
   testWidgets('SvgPicture.network', (WidgetTester tester) async {
-    await HttpOverrides.runZoned(() async {
-      final GlobalKey key = GlobalKey();
-      await tester.pumpWidget(
-        MediaQuery(
-          data: mediaQueryData,
-          child: RepaintBoundary(
-            key: key,
-            child: SvgPicture.network(
-              'test.svg',
-            ),
+    final GlobalKey key = GlobalKey();
+    await tester.pumpWidget(
+      MediaQuery(
+        data: mediaQueryData,
+        child: RepaintBoundary(
+          key: key,
+          child: SvgPicture.network(
+            'test.svg',
+            httpClient: FakeHttpClient(),
           ),
         ),
-      );
-      await tester.pumpAndSettle();
-      await _checkWidgetAndGolden(key, 'flutter_logo.network.png');
-    }, createHttpClient: (SecurityContext? c) => fakeHttpClient);
+      ),
+    );
+    await tester.pumpAndSettle();
+    await _checkWidgetAndGolden(key, 'flutter_logo.network.png');
   });
 
   testWidgets('SvgPicture.network with headers', (WidgetTester tester) async {
-    await HttpOverrides.runZoned(() async {
-      final GlobalKey key = GlobalKey();
-      await tester.pumpWidget(
-        MediaQuery(
-          data: mediaQueryData,
-          child: RepaintBoundary(
-            key: key,
-            child: SvgPicture.network('test.svg',
-                headers: const <String, String>{'a': 'b'}),
+    final GlobalKey key = GlobalKey();
+    final FakeHttpClient client = FakeHttpClient();
+    await tester.pumpWidget(
+      MediaQuery(
+        data: mediaQueryData,
+        child: RepaintBoundary(
+          key: key,
+          child: SvgPicture.network(
+            'test.svg',
+            headers: const <String, String>{'a': 'b'},
+            httpClient: client,
           ),
         ),
-      );
-      await tester.pumpAndSettle();
-      expect(fakeRequest.headers['a']!.single, 'b');
-    }, createHttpClient: (SecurityContext? c) => fakeHttpClient);
+      ),
+    );
+    await tester.pumpAndSettle();
+    expect(client.headers['a'], 'b');
   });
 
   testWidgets('SvgPicture can be created without a MediaQuery',
@@ -361,19 +352,18 @@ void main() {
   });
 
   testWidgets('SvgPicture.network HTTP exception', (WidgetTester tester) async {
-    await HttpOverrides.runZoned(() async {
-      expect(() async {
-        fakeResponse.statusCode = 400;
-        await tester.pumpWidget(
-          MediaQuery(
-            data: mediaQueryData,
-            child: SvgPicture.network(
-              'notFound.svg',
-            ),
+    expect(() async {
+      final http.Client client = FakeHttpClient(400);
+      await tester.pumpWidget(
+        MediaQuery(
+          data: mediaQueryData,
+          child: SvgPicture.network(
+            'notFound.svg',
+            httpClient: client,
           ),
-        );
-      }, isNotNull);
-    }, createHttpClient: (SecurityContext? c) => fakeHttpClient);
+        ),
+      );
+    }, isNotNull);
   });
 
   testWidgets('SvgPicture semantics', (WidgetTester tester) async {
@@ -791,65 +781,19 @@ class FakeAssetBundle extends Fake implements AssetBundle {
   }
 }
 
-class FakeHttpClient extends Fake implements HttpClient {
-  FakeHttpClient(this.request);
+class FakeHttpClient extends Fake implements http.Client {
+  FakeHttpClient([this.statusCode = 200]);
 
-  FakeHttpClientRequest request;
+  final int statusCode;
 
-  @override
-  Future<HttpClientRequest> getUrl(Uri url) async => request;
-}
-
-class FakeHttpHeaders extends Fake implements HttpHeaders {
-  final Map<String, String?> values = <String, String?>{};
-
-  @override
-  void add(String name, Object value, {bool preserveHeaderCase = false}) {
-    values[name] = value.toString();
-  }
+  final Map<String, String> headers = <String, String>{};
 
   @override
-  List<String>? operator [](String key) {
-    return <String>[values[key]!];
-  }
-}
-
-class FakeHttpClientRequest extends Fake implements HttpClientRequest {
-  FakeHttpClientRequest(this.response);
-
-  FakeHttpClientResponse response;
-
-  @override
-  final HttpHeaders headers = FakeHttpHeaders();
-
-  @override
-  Future<HttpClientResponse> close() async => response;
-}
-
-class FakeHttpClientResponse extends Fake implements HttpClientResponse {
-  @override
-  int statusCode = 200;
-
-  @override
-  int contentLength = svgStr.length;
-
-  @override
-  HttpClientResponseCompressionState get compressionState =>
-      HttpClientResponseCompressionState.notCompressed;
-
-  @override
-  StreamSubscription<List<int>> listen(
-    void Function(List<int> event)? onData, {
-    Function? onError,
-    void Function()? onDone,
-    bool? cancelOnError,
-  }) {
-    return Stream<Uint8List>.fromIterable(<Uint8List>[svgBytes]).listen(
-      onData,
-      onDone: onDone,
-      onError: onError,
-      cancelOnError: cancelOnError,
-    );
+  Future<http.Response> get(Uri url, {Map<String, String>? headers}) async {
+    if (headers != null) {
+      this.headers.addAll(headers);
+    }
+    return http.Response(svgStr, statusCode);
   }
 }