подсветка кода: парсинг и рендеринг с помощью изолята

from: git-touch/highlight.dart#35

Author: iska9der

lib/presentation/widget/html_view_widget.dart

@@ -379,13 +379,15 @@ abstract class CustomBuildOp {
             constraints: BoxConstraints(
               minWidth: MediaQuery.of(context).size.width,
             ),
-            child: HighlightView(
-              text,
-              language: lang,
-              tabSize: 4,
-              textStyle: codeTextStyle,
-              theme: codeTheme,
-              padding: padding,
+            child: HighlightBackgroundEnvironment(
+              child: HighlightView(
+                text,
+                language: lang,
+                tabSize: 4,
+                textStyle: codeTextStyle,
+                theme: codeTheme,
+                padding: padding,
+              ),
             ),
           );
         }

packages/flutter_highlight/CHANGELOG.md

@@ -44,6 +44,14 @@ class MyWidget extends StatelessWidget {
 }
 ```
 
+### Background processing
+
+Processing large amounts of text can be slow. To perform text processing in the background, add a
+`HighlightBackgroundEnvironment` above any `HighlightView`s in your widget tree.
+
+A background isolate will be automatically started in `HighlightBackgroundEnvironment.initState`, and stopped in
+`HighlightBackgroundEnvironment.dispose`.
+
 ## References
 
 - [All available languages](https://github.com/pd4d10/highlight/tree/master/highlight/lib/languages)
@@ -52,3 +60,12 @@ class MyWidget extends StatelessWidget {
 ## License
 
 MIT
+
+
+## Credits
+
+Original author
+- [pd4d10](https://github.com/pd4d10)
+
+For improvements (background processing)
+- [hacker1024](https://github.com/hacker1024)