Reverts "Add framework-side hitTestBehavior support for Semantics widget and apply to ModalRoute (#177570)"

packages/flutter/lib/src/rendering/custom_paint.dart

@@ -1046,9 +1046,6 @@ class RenderCustomPaint extends RenderProxyBox {
     if (config.validationResult != properties.validationResult) {
       config.validationResult = properties.validationResult;
     }
-    if (properties.hitTestBehavior != null) {
-      config.hitTestBehavior = properties.hitTestBehavior!;
-    }
     if (properties.inputType != null) {
       config.inputType = properties.inputType!;
     }

packages/flutter/lib/src/rendering/object.dart

@@ -4940,10 +4940,6 @@ mixin SemanticsAnnotationsMixin on RenderObject {
       config.validationResult = _properties.validationResult;
     }
 
-    if (_properties.hitTestBehavior != null) {
-      config.hitTestBehavior = _properties.hitTestBehavior!;
-    }
-
     if (_properties.inputType != null) {
       config.inputType = _properties.inputType!;
     }

packages/flutter/lib/src/semantics/semantics.dart

@@ -28,7 +28,6 @@ import 'dart:ui'
         StringAttribute,
         TextDirection,
         Tristate;
-import 'dart:ui' as ui show SemanticsHitTestBehavior;
 
 import 'package:collection/collection.dart';
 import 'package:flutter/foundation.dart';
@@ -1021,7 +1020,6 @@ class SemanticsData with Diagnosticable {
     required this.role,
     required this.controlsNodes,
     required this.validationResult,
-    required this.hitTestBehavior,
     required this.inputType,
     required this.locale,
     this.tags,
@@ -1290,9 +1288,6 @@ class SemanticsData with Diagnosticable {
   /// {@macro flutter.semantics.SemanticsProperties.validationResult}
   final SemanticsValidationResult validationResult;
 
-  /// {@macro flutter.semantics.SemanticsProperties.hitTestBehavior}
-  final ui.SemanticsHitTestBehavior hitTestBehavior;
-
   /// {@macro flutter.semantics.SemanticsNode.inputType}
   final SemanticsInputType inputType;
 
@@ -1420,7 +1415,6 @@ class SemanticsData with Diagnosticable {
         other.role == role &&
         other.validationResult == validationResult &&
         other.inputType == inputType &&
-        other.hitTestBehavior == hitTestBehavior &&
         _sortedListsEqual(other.customSemanticsActionIds, customSemanticsActionIds) &&
         setEquals<String>(controlsNodes, other.controlsNodes);
   }
@@ -1457,7 +1451,8 @@ class SemanticsData with Diagnosticable {
       validationResult,
       controlsNodes == null ? null : Object.hashAll(controlsNodes!),
       inputType,
-      hitTestBehavior,
+      traversalParentIdentifier,
+      traversalChildIdentifier,
     ),
   );
 
@@ -1616,7 +1611,6 @@ class SemanticsProperties extends DiagnosticableTree {
     this.controlsNodes,
     this.inputType,
     this.validationResult = SemanticsValidationResult.none,
-    this.hitTestBehavior,
     this.onTap,
     this.onLongPress,
     this.onScrollLeft,
@@ -2561,13 +2555,6 @@ class SemanticsProperties extends DiagnosticableTree {
   /// {@endtemplate}
   final SemanticsValidationResult validationResult;
 
-  /// {@template flutter.semantics.SemanticsProperties.hitTestBehavior}
-  /// Describes how the semantic node should behave during hit testing.
-  ///
-  /// See [ui.SemanticsHitTestBehavior] for more details.
-  /// {@endtemplate}
-  final ui.SemanticsHitTestBehavior? hitTestBehavior;
-
   /// {@template flutter.semantics.SemanticsProperties.inputType}
   /// The input type for of a editable widget.
   ///
@@ -3240,8 +3227,7 @@ class SemanticsNode with DiagnosticableTreeMixin {
         _headingLevel != config._headingLevel ||
         _linkUrl != config._linkUrl ||
         _role != config.role ||
-        _validationResult != config.validationResult ||
-        _hitTestBehavior != config.hitTestBehavior;
+        _validationResult != config.validationResult;
   }
 
   // TAGS, LABELS, ACTIONS
@@ -3535,10 +3521,6 @@ class SemanticsNode with DiagnosticableTreeMixin {
   SemanticsValidationResult get validationResult => _validationResult;
   SemanticsValidationResult _validationResult = _kEmptyConfig.validationResult;
 
-  /// {@macro flutter.semantics.SemanticsProperties.hitTestBehavior}
-  ui.SemanticsHitTestBehavior get hitTestBehavior => _hitTestBehavior;
-  ui.SemanticsHitTestBehavior _hitTestBehavior = ui.SemanticsHitTestBehavior.defer;
-
   /// {@template flutter.semantics.SemanticsNode.inputType}
   /// The input type for of a editable node.
   ///
@@ -3619,7 +3601,6 @@ class SemanticsNode with DiagnosticableTreeMixin {
     _role = config._role;
     _controlsNodes = config._controlsNodes;
     _validationResult = config._validationResult;
-    _hitTestBehavior = config._hitTestBehavior;
     _inputType = config._inputType;
     _locale = config.locale;
 
@@ -3674,7 +3655,6 @@ class SemanticsNode with DiagnosticableTreeMixin {
     SemanticsRole role = _role;
     Set<String>? controlsNodes = _controlsNodes;
     SemanticsValidationResult validationResult = _validationResult;
-    ui.SemanticsHitTestBehavior hitTestBehavior = _hitTestBehavior;
     SemanticsInputType inputType = _inputType;
     final Locale? locale = _locale;
     final Set<int> customSemanticsActionIds = <int>{};
@@ -3739,10 +3719,6 @@ class SemanticsNode with DiagnosticableTreeMixin {
         if (inputType == SemanticsInputType.none) {
           inputType = node._inputType;
         }
-        if (hitTestBehavior == ui.SemanticsHitTestBehavior.defer &&
-            node._hitTestBehavior != ui.SemanticsHitTestBehavior.defer) {
-          hitTestBehavior = node._hitTestBehavior;
-        }
         if (tooltip == '') {
           tooltip = node._tooltip;
         }
@@ -3834,7 +3810,6 @@ class SemanticsNode with DiagnosticableTreeMixin {
       role: role,
       controlsNodes: controlsNodes,
       validationResult: validationResult,
-      hitTestBehavior: hitTestBehavior,
       inputType: inputType,
       locale: locale,
     );
@@ -4026,7 +4001,6 @@ class SemanticsNode with DiagnosticableTreeMixin {
       role: data.role,
       controlsNodes: data.controlsNodes?.toList(),
       validationResult: data.validationResult,
-      hitTestBehavior: data.hitTestBehavior,
       inputType: data.inputType,
       locale: data.locale,
     );
@@ -6452,14 +6426,6 @@ class SemanticsConfiguration {
     _hasBeenAnnotated = true;
   }
 
-  /// {@macro flutter.semantics.SemanticsProperties.hitTestBehavior}
-  ui.SemanticsHitTestBehavior get hitTestBehavior => _hitTestBehavior;
-  ui.SemanticsHitTestBehavior _hitTestBehavior = ui.SemanticsHitTestBehavior.defer;
-  set hitTestBehavior(ui.SemanticsHitTestBehavior value) {
-    _hitTestBehavior = value;
-    _hasBeenAnnotated = true;
-  }
-
   /// {@macro flutter.semantics.SemanticsProperties.inputType}
   SemanticsInputType get inputType => _inputType;
   SemanticsInputType _inputType = SemanticsInputType.none;
@@ -6568,10 +6534,6 @@ class SemanticsConfiguration {
     if (_hasExplicitRole && other._hasExplicitRole) {
       return false;
     }
-    if (_hitTestBehavior != ui.SemanticsHitTestBehavior.defer ||
-        other._hitTestBehavior != ui.SemanticsHitTestBehavior.defer) {
-      return false;
-    }
     return true;
   }
 
@@ -6682,10 +6644,6 @@ class SemanticsConfiguration {
       child._accessiblityFocusBlockType,
     );
 
-    if (_hitTestBehavior == ui.SemanticsHitTestBehavior.defer) {
-      _hitTestBehavior = child._hitTestBehavior;
-    }
-
     _hasBeenAnnotated = hasBeenAnnotated || child.hasBeenAnnotated;
   }
 
@@ -6731,8 +6689,7 @@ class SemanticsConfiguration {
       .._role = _role
       .._controlsNodes = _controlsNodes
       .._validationResult = _validationResult
-      .._inputType = _inputType
-      .._hitTestBehavior = _hitTestBehavior;
+      .._inputType = _inputType;
   }
 }
 

packages/flutter/lib/src/widgets/basic.dart

@@ -9,9 +9,7 @@
 library;
 
 import 'dart:math' as math;
-import 'dart:ui'
-    as ui
-    show Image, ImageFilter, SemanticsHitTestBehavior, SemanticsInputType, TextHeightBehavior;
+import 'dart:ui' as ui show Image, ImageFilter, SemanticsInputType, TextHeightBehavior;
 
 import 'package:flutter/animation.dart';
 import 'package:flutter/foundation.dart';
@@ -4050,7 +4048,6 @@ sealed class _SemanticsBase extends SingleChildRenderObjectWidget {
     required SemanticsRole? role,
     required Set<String>? controlsNodes,
     required SemanticsValidationResult validationResult,
-    required ui.SemanticsHitTestBehavior? hitTestBehavior,
     required ui.SemanticsInputType? inputType,
     required Locale? localeForSubtree,
   }) : this.fromProperties(
@@ -4136,7 +4133,6 @@ sealed class _SemanticsBase extends SingleChildRenderObjectWidget {
            role: role,
            controlsNodes: controlsNodes,
            validationResult: validationResult,
-           hitTestBehavior: hitTestBehavior,
            inputType: inputType,
          ),
        );
@@ -4386,7 +4382,6 @@ class SliverSemantics extends _SemanticsBase {
     super.role,
     super.controlsNodes,
     super.validationResult = SemanticsValidationResult.none,
-    super.hitTestBehavior,
     super.inputType,
     super.localeForSubtree,
   }) : super(child: sliver);
@@ -7969,7 +7964,6 @@ class Semantics extends _SemanticsBase {
     super.role,
     super.controlsNodes,
     super.validationResult = SemanticsValidationResult.none,
-    super.hitTestBehavior,
     super.inputType,
     super.localeForSubtree,
   });

packages/flutter/lib/src/widgets/routes.dart

@@ -2313,7 +2313,6 @@ abstract class ModalRoute<T> extends TransitionRoute<T> with LocalHistoryRoute<T
     // To be sorted before the _modalBarrier.
     return _modalScopeCache ??= Semantics(
       sortKey: const OrdinalSortKey(0.0),
-      hitTestBehavior: ui.SemanticsHitTestBehavior.opaque,
       child: _ModalScope<T>(
         key: _scopeKey,
         route: this,