From 8cf55ea0c6c7e59dbe2cae34b44cb334a3a839db Mon Sep 17 00:00:00 2001
From: vovaklh <volodymyr@dellaconnect.com>
Date: Tue, 1 Jul 2025 11:39:40 +0200
Subject: [PATCH] Add onTextChange listener to LanguageToolTextfield

---
 .../example/lib/main.dart                     | 10 +++---
 .../src/reactive_languagetool_textfield.dart  | 33 ++++++++++++++-----
 .../pubspec.yaml                              |  2 +-
 3 files changed, 30 insertions(+), 15 deletions(-)

diff --git a/packages/reactive_languagetool_textfield/example/lib/main.dart b/packages/reactive_languagetool_textfield/example/lib/main.dart
index cbf7eb4e..833b7961 100644
--- a/packages/reactive_languagetool_textfield/example/lib/main.dart
+++ b/packages/reactive_languagetool_textfield/example/lib/main.dart
@@ -68,12 +68,10 @@ class _MyAppState extends State<MyApp> {
                     ElevatedButton(
                       child: const Text('Select all text'),
                       onPressed: () {
-                        if (_controller != null) {
-                          form.control('input').focus();
-
-                          _controller?.selection = TextSelection(
-                            baseOffset: 0,
-                            extentOffset: _controller?.text.length ?? 0,
+                        final value = form.control('input').value;
+                        if (value != null) {
+                          ScaffoldMessenger.of(context).showSnackBar(
+                            SnackBar(content: Text('Selected text: ${value.toString()}')),
                           );
                         }
                       },
diff --git a/packages/reactive_languagetool_textfield/lib/src/reactive_languagetool_textfield.dart b/packages/reactive_languagetool_textfield/lib/src/reactive_languagetool_textfield.dart
index cdd867c8..d162b627 100644
--- a/packages/reactive_languagetool_textfield/lib/src/reactive_languagetool_textfield.dart
+++ b/packages/reactive_languagetool_textfield/lib/src/reactive_languagetool_textfield.dart
@@ -28,6 +28,8 @@ class ReactiveLanguageToolTextField<T> extends ReactiveFormField<T, String> {
   final Duration delay;
   final DelayType delayType;
 
+  final LanguageToolController? _textController;
+
   /// Creates a [ReactiveLanguageToolTextField] that contains a [LanguageToolTextField].
   ///
   /// Can optionally provide a [formControl] to bind this widget to a control.
@@ -98,6 +100,7 @@ class ReactiveLanguageToolTextField<T> extends ReactiveFormField<T, String> {
     super.validationMessages,
     super.valueAccessor,
     super.showErrors,
+    LanguageToolController? controller,
     String language = 'auto',
     MistakePopup? mistakePopup,
     bool alignCenter = true,
@@ -156,7 +159,8 @@ class ReactiveLanguageToolTextField<T> extends ReactiveFormField<T, String> {
     bool enableIMEPersonalizedLearning = true,
     bool scribbleEnabled = true,
     Widget Function(BuildContext context, String error)? errorBuilder,
-  }) : super(
+  })  : _textController = controller,
+        super(
           builder: (ReactiveFormFieldState<T, String> field) {
             final state = field as _ReactiveLanguageToolTextFieldState<T>;
             final effectiveDecoration = decoration
@@ -218,7 +222,6 @@ class ReactiveLanguageToolTextField<T> extends ReactiveFormField<T, String> {
               minLines: minLines,
               expands: expands,
               // maxLength: maxLength,
-              // onChanged: field.didChange,
               onTap: onTap,
               onTapOutside: onTapOutside,
               onTextChange: field.didChange,
@@ -273,22 +276,35 @@ class _ReactiveLanguageToolTextFieldState<T>
 
     final initialValue = value;
 
-    _textController = LanguageToolController(
-      highlightStyle:
-          (widget as ReactiveLanguageToolTextField<T>).highlightStyle,
-      delay: (widget as ReactiveLanguageToolTextField<T>).delay,
-      delayType: (widget as ReactiveLanguageToolTextField<T>).delayType,
-    );
+    final currentWidget = widget as ReactiveLanguageToolTextField<T>;
+    _textController = currentWidget._textController ??
+        LanguageToolController(
+          highlightStyle:
+              (widget as ReactiveLanguageToolTextField<T>).highlightStyle,
+          delay: (widget as ReactiveLanguageToolTextField<T>).delay,
+          delayType: (widget as ReactiveLanguageToolTextField<T>).delayType,
+        );
 
     WidgetsBinding.instance.addPostFrameCallback((_) {
       _textController.text = initialValue?.toString() ?? '';
     });
+    _textController.addListener(_onTextChangeListener);
 
     (widget as ReactiveLanguageToolTextField<T>)
         .onControllerInit
         ?.call(_textController);
   }
 
+  void _onTextChangeListener() {
+    final text = _textController.text;
+    final controlValue = control.value;
+    final stringValue = controlValue?.toString();
+
+    if (stringValue != null && stringValue != text) {
+      didChange(text);
+    }
+  }
+
   @override
   void didUpdateWidget(ReactiveFormField<T, String> oldWidget) {
     final newControl = _resolveFormControl();
@@ -331,6 +347,7 @@ class _ReactiveLanguageToolTextFieldState<T>
 
   @override
   void dispose() {
+    _textController.removeListener(_onTextChangeListener);
     _unregisterFocusController();
     _textController.dispose();
     super.dispose();
diff --git a/packages/reactive_languagetool_textfield/pubspec.yaml b/packages/reactive_languagetool_textfield/pubspec.yaml
index a10c1501..dc8f2a5b 100644
--- a/packages/reactive_languagetool_textfield/pubspec.yaml
+++ b/packages/reactive_languagetool_textfield/pubspec.yaml
@@ -1,6 +1,6 @@
 name: reactive_languagetool_textfield
 description: Wrapper around languagetool_textfield to use with reactive_forms.
-version: 0.0.2
+version: 0.0.3
 repository: https://github.com/artflutter/reactive_forms_widgets/tree/master/packages/reactive_languagetool_textfield
 issue_tracker: https://github.com/artflutter/reactive_forms_widgets/issues