feat: introduce EditorLanguage enum for syntax highlighting support

lib/controller/custom_text_controller.dart

@@ -1,11 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_highlight/themes/atom-one-dark-reasonable.dart';
 import 'package:highlight/highlight.dart' show highlight, Node;
+import 'package:phone_ide/models/editor_language.dart';
 
 class TextEditingControllerIDE extends TextEditingController {
-  TextEditingControllerIDE({Key? key, this.font, this.language = 'HTML'});
+  TextEditingControllerIDE({Key? key, this.font, this.language = EditorLanguage.html});
 
-  String language;
+  EditorLanguage language;
   final TextStyle? font;
 
   List<TextSpan> _convert(List<Node> nodes) {
@@ -56,7 +57,7 @@ class TextEditingControllerIDE extends TextEditingController {
     TextStyle? style,
     required bool withComposing,
   }) {
-    var nodes = highlight.parse(text, language: language).nodes!;
+    var nodes = highlight.parse(text, language: language.identifier).nodes!;
     return TextSpan(style: style, children: _convert(nodes));
   }
 }

lib/editor/editor.dart

@@ -6,6 +6,7 @@ import 'package:flutter/services.dart';
 import 'package:phone_ide/controller/custom_text_controller.dart';
 import 'package:phone_ide/editor/editor_options.dart';
 import 'package:phone_ide/editor/linebar.dart';
+import 'package:phone_ide/models/editor_language.dart';
 import 'package:phone_ide/models/textfield_data.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -35,7 +36,7 @@ class Editor extends StatefulWidget {
   final String defaultValue;
 
   // The starting language of the editor
-  final String defaultLanguage;
+  final EditorLanguage defaultLanguage;
 
   // The path e.g. file name "index.html"
   final String path;

lib/main.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:phone_ide/models/editor_language.dart';
 import 'package:phone_ide/phone_ide.dart';
 
 void main() {
@@ -28,7 +29,7 @@ class EditorView extends StatefulWidget {
 
 class EditorViewState extends State<EditorView> {
   Editor editor = Editor(
-    defaultLanguage: 'html',
+    defaultLanguage: EditorLanguage.html,
     defaultValue: '<h1> Hello World</h1>',
     path: 'index.html',
     options: EditorOptions(),

lib/models/editor_language.dart

@@ -0,0 +1,73 @@
+/// Supported programming languages for syntax highlighting in the editor.
+///
+/// This enum represents all languages supported by the highlight.js package
+/// used in the phone_ide editor. Each enum value corresponds to a language
+/// identifier that can be used for syntax highlighting.
+enum EditorLanguage {
+  // Web Development
+  html('html'),
+  css('css'),
+  javascript('javascript'),
+  typescript('typescript'),
+  json('json'),
+  xml('xml'),
+
+  // Markup & Documentation
+  markdown('markdown'),
+  yaml('yaml'),
+
+  // Mobile Development
+  dart('dart'),
+  kotlin('kotlin'),
+  swift('swift'),
+
+  // Systems Programming
+  c('c'),
+  cpp('cpp'),
+  rust('rust'),
+  go('go'),
+
+  // JVM Languages
+  java('java'),
+  scala('scala'),
+  groovy('groovy'),
+
+  // Functional Programming
+  haskell('haskell'),
+  fsharp('fsharp'),
+  clojure('clojure'),
+  elixir('elixir'),
+  erlang('erlang'),
+
+  // Scripting Languages
+  python('python'),
+  ruby('ruby'),
+  php('php'),
+  perl('perl'),
+  lua('lua'),
+
+  // .NET Languages
+  csharp('csharp'),
+
+  // Shell & Config
+  bash('bash'),
+  shell('shell'),
+  powershell('powershell'),
+  dockerfile('dockerfile'),
+
+  // Database
+  sql('sql'),
+  graphql('graphql'),
+
+  // Other Popular Languages
+  r('r'),
+  coffeescript('coffeescript');
+
+  const EditorLanguage(this.identifier);
+
+  /// The language identifier string used by highlight.js
+  final String identifier;
+
+  @override
+  String toString() => identifier;
+}

lib/phone_ide.dart

@@ -2,3 +2,4 @@ library phone_ide;
 
 export './editor/editor.dart';
 export './editor/editor_options.dart';
+export './models/editor_language.dart';