opt win selection

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/common/widgets/text_field/controller.dart

@@ -865,6 +865,26 @@ class RichTextEditingController extends TextEditingController {
     return position;
   }
 
+  int tapOffsetSimple(int offset) {
+    for (var e in items) {
+      final range = e.range;
+      if (offset >= range.end) {
+        continue;
+      }
+      if (offset <= range.start) {
+        break;
+      }
+      if (e.isRich) {
+        if (offset * 2 > range.start + range.end) {
+          return range.end;
+        } else {
+          return range.start;
+        }
+      }
+    }
+    return offset;
+  }
+
   int tapOffset(
     int offset, {
     required TextPainter textPainter,

lib/common/widgets/text_field/cupertino/cupertino_text_field.dart

@@ -117,6 +117,7 @@ class _CupertinoTextFieldSelectionGestureDetectorBuilder
     extends TextSelectionGestureDetectorBuilder {
   _CupertinoTextFieldSelectionGestureDetectorBuilder({
     required _CupertinoRichTextFieldState state,
+    required super.controller,
   }) : _state = state,
        super(delegate: state);
 
@@ -1254,6 +1255,7 @@ class _CupertinoRichTextFieldState extends State<CupertinoRichTextField>
     _selectionGestureDetectorBuilder =
         _CupertinoTextFieldSelectionGestureDetectorBuilder(
           state: this,
+          controller: widget.controller,
         );
     // if (widget.controller == null) {
     //   _createLocalController();

lib/common/widgets/text_field/editable.dart

@@ -2227,6 +2227,15 @@ class RenderEditable extends RenderBox
         lastTapDownPosition: from,
       );
       extentOffset = baseOffset;
+    } else {
+      // select
+      final isNormalized = baseOffset < extentOffset;
+      final newOffset = controller.longPressOffset(
+        isNormalized ? baseOffset : extentOffset,
+        isNormalized ? extentOffset : baseOffset,
+      );
+      baseOffset = isNormalized ? newOffset.startOffset : newOffset.endOffset;
+      extentOffset = isNormalized ? newOffset.endOffset : newOffset.startOffset;
     }
 
     final TextSelection newSelection = TextSelection(

lib/common/widgets/text_field/text_field.dart

@@ -84,9 +84,11 @@ typedef InputCounterWidgetBuilder =
 
 class _TextFieldSelectionGestureDetectorBuilder
     extends TextSelectionGestureDetectorBuilder {
-  _TextFieldSelectionGestureDetectorBuilder({required RichTextFieldState state})
-    : _state = state,
-      super(delegate: state);
+  _TextFieldSelectionGestureDetectorBuilder({
+    required RichTextFieldState state,
+    required super.controller,
+  }) : _state = state,
+       super(delegate: state);
 
   final RichTextFieldState _state;
 
@@ -1373,7 +1375,10 @@ class RichTextFieldState extends State<RichTextField>
   void initState() {
     super.initState();
     _selectionGestureDetectorBuilder =
-        _TextFieldSelectionGestureDetectorBuilder(state: this);
+        _TextFieldSelectionGestureDetectorBuilder(
+          state: this,
+          controller: widget.controller,
+        );
     // if (widget.controller == null) {
     //   _createLocalController();
     // }

lib/common/widgets/text_field/text_selection.dart

@@ -49,7 +49,10 @@ abstract class TextSelectionGestureDetectorBuilderDelegate {
 ///    Cupertino-specific gesture logic of an [EditableText].
 class TextSelectionGestureDetectorBuilder {
   /// Creates a [TextSelectionGestureDetectorBuilder].
-  TextSelectionGestureDetectorBuilder({required this.delegate});
+  TextSelectionGestureDetectorBuilder({
+    required this.delegate,
+    required this.controller,
+  });
 
   /// The delegate for this [TextSelectionGestureDetectorBuilder].
   ///
@@ -62,6 +65,8 @@ class TextSelectionGestureDetectorBuilder {
   @protected
   final TextSelectionGestureDetectorBuilderDelegate delegate;
 
+  final RichTextEditingController controller;
+
   // Shows the magnifier on supported platforms at the given offset, currently
   // only Android and iOS.
   void _showMagnifierIfSupportedByPlatform(Offset positionToShow) {
@@ -177,7 +182,7 @@ class TextSelectionGestureDetectorBuilder {
     );
     final TextSelection selection = renderEditable.selection!;
     final TextSelection nextSelection = selection.copyWith(
-      extentOffset: tappedPosition.offset,
+      extentOffset: controller.tapOffsetSimple(tappedPosition.offset),
     );
 
     editableText.userUpdateTextEditingValue(