Sub6Resources · Sub6Resources · Sep 27, 2022 · Sep 26, 2022 · Sep 26, 2022 · Sep 26, 2022
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -32,3 +32,9 @@ jobs:
           command: melos run gen_coverage
       - codecov/upload:
           file: coverage_report/lcov.info
+      - run:
+          name: Run flutter analyze
+          command: melos run analyze
+      - run:
+          name: Check That Flutter Code is Formatted Correctly
+          command: flutter format -o none --set-exit-if-changed .
diff --git a/analysis_options.yaml b/analysis_options.yaml
@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+  # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+  # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options
diff --git a/example/lib/main.dart b/example/lib/main.dart
@@ -1,31 +1,32 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_html/flutter_html.dart';
 import 'package:flutter_html_all/flutter_html_all.dart';
-import 'package:flutter_math_fork/flutter_math.dart';
 
-void main() => runApp(new MyApp());
+void main() => runApp(const MyApp());
 
 class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
   // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
-    return new MaterialApp(
+    return MaterialApp(
       title: 'Flutter Demo',
-      theme: new ThemeData(
+      theme: ThemeData(
         primarySwatch: Colors.deepPurple,
       ),
-      home: new MyHomePage(title: 'flutter_html Example'),
+      home: const MyHomePage(title: 'flutter_html Example'),
     );
   }
 }
 
 class MyHomePage extends StatefulWidget {
-  MyHomePage({Key? key, required this.title}) : super(key: key);
+  const MyHomePage({Key? key, required this.title}) : super(key: key);
 
   final String title;
 
   @override
-  _MyHomePageState createState() => new _MyHomePageState();
+  MyHomePageState createState() => MyHomePageState();
 }
 
 const htmlData = r"""
@@ -66,9 +67,9 @@ const htmlData = r"""
       <div style="width: 150px; height: 20px; background-color: #ff99ff; margin: 15px auto;">margin: 15px auto</div>
       <div style="width: 150px; height: 20px; background-color: #9999ff; margin-left: auto;">margin-left: auto</div>
       <p>With an image - non-block (should not center):</p>
-      <img style="margin: auto;" src="https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_92x30dp.png">
+      <img alt='' style="margin: auto;" src="https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_92x30dp.png">
       <p>block image (should center):</p>
-      <img style="display: block; margin: auto;" src="https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_92x30dp.png">
+      <img alt='' style="display: block; margin: auto;" src="https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_92x30dp.png">
       <h3>Table support (with custom styling!):</h3>
       <p>
       <q>Famous quote...</q>
@@ -253,18 +254,19 @@ const htmlData = r"""
 
 final staticAnchorKey = GlobalKey();
 
-class _MyHomePageState extends State<MyHomePage> {
+class MyHomePageState extends State<MyHomePage> {
   @override
   Widget build(BuildContext context) {
-    return new Scaffold(
+    return Scaffold(
       appBar: AppBar(
-        title: Text('flutter_html Example'),
+        title: const Text('flutter_html Example'),
         centerTitle: true,
       ),
       floatingActionButton: FloatingActionButton(
-        child: Icon(Icons.arrow_downward),
+        child: const Icon(Icons.arrow_downward),
         onPressed: () {
-          final anchorContext = AnchorKey.forId(staticAnchorKey, "bottom")?.currentContext;
+          final anchorContext =
+              AnchorKey.forId(staticAnchorKey, "bottom")?.currentContext;
           if (anchorContext != null) {
             Scrollable.ensureVisible(anchorContext);
           }
@@ -276,94 +278,111 @@ class _MyHomePageState extends State<MyHomePage> {
           data: htmlData,
           style: {
             "table": Style(
-              backgroundColor: Color.fromARGB(0x50, 0xee, 0xee, 0xee),
+              backgroundColor: const Color.fromARGB(0x50, 0xee, 0xee, 0xee),
             ),
             "tr": Style(
-              border: Border(bottom: BorderSide(color: Colors.grey)),
+              border: const Border(bottom: BorderSide(color: Colors.grey)),
             ),
             "th": Style(
-              padding: EdgeInsets.all(6),
+              padding: const EdgeInsets.all(6),
               backgroundColor: Colors.grey,
             ),
             "td": Style(
-              padding: EdgeInsets.all(6),
+              padding: const EdgeInsets.all(6),
               alignment: Alignment.topLeft,
             ),
             'h5': Style(maxLines: 2, textOverflow: TextOverflow.ellipsis),
           },
           tagsList: Html.tags..addAll(['tex', 'bird', 'flutter']),
           customRenders: {
-            tagMatcher("tex"): CustomRender.widget(widget: (context, buildChildren) => Math.tex(
-              context.tree.element?.innerHtml ?? '',
-              mathStyle: MathStyle.display,
-              textStyle: context.style.generateTextStyle(),
-              onErrorFallback: (FlutterMathException e) {
-                return Text(e.message);
-              },
-            )),
-            tagMatcher("bird"): CustomRender.inlineSpan(inlineSpan: (context, buildChildren) => TextSpan(text: "🐦")),
-            tagMatcher("flutter"): CustomRender.widget(widget: (context, buildChildren) => FlutterLogo(
-              style: (context.tree.element!.attributes['horizontal'] != null)
-                  ? FlutterLogoStyle.horizontal
-                  : FlutterLogoStyle.markOnly,
-              textColor: context.style.color!,
-              size: context.style.fontSize!.value * 5,
-            )),
-            tagMatcher("table"): CustomRender.widget(widget: (context, buildChildren) => SingleChildScrollView(
-              scrollDirection: Axis.horizontal,
-              child: tableRender.call().widget!.call(context, buildChildren),
-            )),
+            tagMatcher("tex"): CustomRender.widget(
+                widget: (context, buildChildren) => Math.tex(
+                      context.tree.element?.innerHtml ?? '',
+                      mathStyle: MathStyle.display,
+                      textStyle: context.style.generateTextStyle(),
+                      onErrorFallback: (FlutterMathException e) {
+                        return Text(e.message);
+                      },
+                    )),
+            tagMatcher("bird"): CustomRender.inlineSpan(
+                inlineSpan: (context, buildChildren) =>
+                    const TextSpan(text: "🐦")),
+            tagMatcher("flutter"): CustomRender.widget(
+                widget: (context, buildChildren) => FlutterLogo(
+                      style: (context.tree.element!.attributes['horizontal'] !=
+                              null)
+                          ? FlutterLogoStyle.horizontal
+                          : FlutterLogoStyle.markOnly,
+                      textColor: context.style.color!,
+                      size: context.style.fontSize!.value * 5,
+                    )),
+            tagMatcher("table"): CustomRender.widget(
+                widget: (context, buildChildren) => SingleChildScrollView(
+                      scrollDirection: Axis.horizontal,
+                      child: tableRender
+                          .call()
+                          .widget!
+                          .call(context, buildChildren),
+                    )),
             audioMatcher(): audioRender(),
             iframeMatcher(): iframeRender(),
-            mathMatcher(): mathRender(onMathError: (error, exception, exceptionWithType) {
-              print(exception);
+            mathMatcher():
+                mathRender(onMathError: (error, exception, exceptionWithType) {
+              debugPrint(exception);
               return Text(exception);
             }),
             svgTagMatcher(): svgTagRender(),
             svgDataUriMatcher(): svgDataImageRender(),
             svgAssetUriMatcher(): svgAssetImageRender(),
             svgNetworkSourceMatcher(): svgNetworkImageRender(),
-            networkSourceMatcher(domains: ["flutter.dev"]): CustomRender.widget(
-                widget: (context, buildChildren) {
-                  return FlutterLogo(size: 36);
-                }),
+            networkSourceMatcher(domains: ["flutter.dev"]):
+                CustomRender.widget(widget: (context, buildChildren) {
+              return const FlutterLogo(size: 36);
+            }),
             networkSourceMatcher(domains: ["mydomain.com"]): networkImageRender(
               headers: {"Custom-Header": "some-value"},
               altWidget: (alt) => Text(alt ?? ""),
-              loadingWidget: () => Text("Loading..."),
+              loadingWidget: () => const Text("Loading..."),
             ),
             // On relative paths starting with /wiki, prefix with a base url
-                (context) => context.tree.element?.attributes["src"] != null
-                && context.tree.element!.attributes["src"]!.startsWith("/wiki"):
-            networkImageRender(mapUrl: (url) => "https://upload.wikimedia.org" + url!),
+            (context) =>
+                context.tree.element?.attributes["src"] != null &&
+                context.tree.element!.attributes["src"]!
+                    .startsWith("/wiki"): networkImageRender(
+                mapUrl: (url) => "https://upload.wikimedia.org${url!}"),
             // Custom placeholder image for broken links
-            networkSourceMatcher(): networkImageRender(altWidget: (_) => FlutterLogo()),
+            networkSourceMatcher():
+                networkImageRender(altWidget: (_) => const FlutterLogo()),
             videoMatcher(): videoRender(),
           },
           onLinkTap: (url, _, __, ___) {
-            print("Opening $url...");
+            debugPrint("Opening $url...");
           },
           onImageTap: (src, _, __, ___) {
-            print(src);
+            debugPrint(src);
           },
           onImageError: (exception, stackTrace) {
-            print(exception);
+            debugPrint(exception.toString());
           },
           onCssParseError: (css, messages) {
-            print("css that errored: $css");
-            print("error messages:");
-            messages.forEach((element) {
-              print(element);
-            });
+            debugPrint("css that errored: $css");
+            debugPrint("error messages:");
+            for (var element in messages) {
+              debugPrint(element.toString());
+            }
+            return '';
           },
         ),
       ),
     );
   }
 }
 
-CustomRenderMatcher texMatcher() => (context) => context.tree.element?.localName == 'tex';
+CustomRenderMatcher texMatcher() =>
+    (context) => context.tree.element?.localName == 'tex';
 
-CustomRenderMatcher birdMatcher() => (context) => context.tree.element?.localName == 'bird';
+CustomRenderMatcher birdMatcher() =>
+    (context) => context.tree.element?.localName == 'bird';
 
-CustomRenderMatcher flutterMatcher() => (context) => context.tree.element?.localName == 'flutter';
+CustomRenderMatcher flutterMatcher() =>
+    (context) => context.tree.element?.localName == 'flutter';
diff --git a/example/pubspec.yaml b/example/pubspec.yaml
@@ -17,6 +17,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
+  flutter_lints: ^2.0.1
 
 flutter: