Revert TextField.adaptive (flutter#69631)

Author: HansMuller

packages/flutter/lib/src/material/text_field.dart

@@ -25,8 +25,6 @@ import 'theme.dart';
 
 export 'package:flutter/services.dart' show TextInputType, TextInputAction, TextCapitalization, SmartQuotesType, SmartDashesType;
 
-enum _TextFieldType { material, adaptive }
-
 /// Signature for the [TextField.buildCounter] callback.
 typedef InputCounterWidgetBuilder = Widget? Function(
   /// The build context for the TextField.
@@ -382,8 +380,7 @@ class TextField extends StatefulWidget {
     this.scrollPhysics,
     this.autofillHints,
     this.restorationId,
-  }) : _textFieldType = _TextFieldType.material,
-       assert(textAlign != null),
+  }) : assert(textAlign != null),
        assert(readOnly != null),
        assert(autofocus != null),
        assert(obscuringCharacter != null && obscuringCharacter.length == 1),
@@ -430,119 +427,6 @@ class TextField extends StatefulWidget {
          )),
        super(key: key);
 
-  /// Creates a [CupertinoTextField] if the target platform is iOS, creates a
-  /// material design text field otherwise.
-  ///
-  /// To retain the standard look of [CupertinoTextField], this constructor only
-  /// uses the [decoration] property's [decoration.hintText],
-  /// [decoration.hintStyle], [decoration.suffix], and [decoration.prefix] for
-  /// the iOS platform, and all else is ignored in support of the default iOS
-  /// look. For instance, the [decoration.border] cannot override the default
-  /// iOS-style border.
-  ///
-  /// The target platform is based on the current [Theme]: [ThemeData.platform].
-  const TextField.adaptive({
-    Key? key,
-    this.controller,
-    this.focusNode,
-    this.decoration = const InputDecoration(),
-    TextInputType? keyboardType,
-    this.textInputAction,
-    this.textCapitalization = TextCapitalization.none,
-    this.style,
-    this.strutStyle,
-    this.textAlign = TextAlign.start,
-    this.textAlignVertical,
-    this.textDirection,
-    this.readOnly = false,
-    ToolbarOptions? toolbarOptions,
-    this.showCursor,
-    this.autofocus = false,
-    this.obscuringCharacter = '•',
-    this.obscureText = false,
-    this.autocorrect = true,
-    SmartDashesType? smartDashesType,
-    SmartQuotesType? smartQuotesType,
-    this.enableSuggestions = true,
-    this.maxLines = 1,
-    this.minLines,
-    this.expands = false,
-    this.maxLength,
-    this.maxLengthEnforced = true,
-    this.onChanged,
-    this.onEditingComplete,
-    this.onSubmitted,
-    this.onAppPrivateCommand,
-    this.inputFormatters,
-    this.enabled,
-    this.cursorWidth = 2.0,
-    this.cursorHeight,
-    this.cursorRadius,
-    this.cursorColor,
-    this.selectionControls,
-    this.selectionHeightStyle = ui.BoxHeightStyle.tight,
-    this.selectionWidthStyle = ui.BoxWidthStyle.tight,
-    this.keyboardAppearance,
-    this.scrollPadding = const EdgeInsets.all(20.0),
-    this.dragStartBehavior = DragStartBehavior.start,
-    this.enableInteractiveSelection = true,
-    this.onTap,
-    this.mouseCursor,
-    this.buildCounter,
-    this.scrollController,
-    this.scrollPhysics,
-    this.autofillHints,
-    this.restorationId,
-  }) : _textFieldType = _TextFieldType.adaptive,
-       assert(textAlign != null),
-       assert(readOnly != null),
-       assert(autofocus != null),
-       assert(obscuringCharacter != null && obscuringCharacter.length == 1),
-       assert(obscureText != null),
-       assert(autocorrect != null),
-       smartDashesType = smartDashesType ?? (obscureText ? SmartDashesType.disabled : SmartDashesType.enabled),
-       smartQuotesType = smartQuotesType ?? (obscureText ? SmartQuotesType.disabled : SmartQuotesType.enabled),
-       assert(enableSuggestions != null),
-       assert(enableInteractiveSelection != null),
-       assert(maxLengthEnforced != null),
-       assert(scrollPadding != null),
-       assert(dragStartBehavior != null),
-       assert(selectionHeightStyle != null),
-       assert(selectionWidthStyle != null),
-       assert(maxLines == null || maxLines > 0),
-       assert(minLines == null || minLines > 0),
-       assert(
-         (maxLines == null) || (minLines == null) || (maxLines >= minLines),
-         "minLines can't be greater than maxLines",
-       ),
-       assert(expands != null),
-       assert(
-         !expands || (maxLines == null && minLines == null),
-         'minLines and maxLines must be null when expands is true.',
-       ),
-       assert(!obscureText || maxLines == 1, 'Obscured fields cannot be multiline.'),
-       assert(maxLength == null || maxLength == TextField.noMaxLength || maxLength > 0),
-       // Assert the following instead of setting it directly to avoid surprising the user by silently changing the value they set.
-       assert(!identical(textInputAction, TextInputAction.newline) ||
-         maxLines == 1 ||
-         !identical(keyboardType, TextInputType.text),
-         'Use keyboardType TextInputType.multiline when using TextInputAction.newline on a multiline TextField.'),
-       keyboardType = keyboardType ?? (maxLines == 1 ? TextInputType.text : TextInputType.multiline),
-       toolbarOptions = toolbarOptions ?? (obscureText ?
-         const ToolbarOptions(
-           selectAll: true,
-           paste: true,
-         ) :
-         const ToolbarOptions(
-           copy: true,
-           cut: true,
-           selectAll: true,
-           paste: true,
-         )),
-       super(key: key);
-
-  final _TextFieldType _textFieldType;
-
   /// Controls the text being edited.
   ///
   /// If null, this widget will create its own [TextEditingController].
@@ -1192,60 +1076,8 @@ class _TextFieldState extends State<TextField> with RestorationMixin implements
     }
   }
 
-  Widget _buildCupertinoTextField(BuildContext context) {
-    return CupertinoTextField(
-      key: widget.key,
-      controller: widget.controller,
-      focusNode: widget.focusNode,
-      placeholder: widget.decoration?.hintText,
-      placeholderStyle: widget.decoration?.hintStyle ?? const TextStyle(fontWeight: FontWeight.w400, color: CupertinoColors.placeholderText),
-      prefix: widget.decoration?.prefix,
-      suffix: widget.decoration?.suffix,
-      keyboardType: widget.keyboardType,
-      textInputAction: widget.textInputAction,
-      textCapitalization: widget.textCapitalization,
-      style: widget.style,
-      strutStyle: widget.strutStyle,
-      textAlign: widget.textAlign,
-      textAlignVertical: widget.textAlignVertical,
-      readOnly: widget.readOnly,
-      toolbarOptions: widget.toolbarOptions,
-      showCursor: widget.showCursor,
-      autofocus: widget.autofocus,
-      obscuringCharacter: widget.obscuringCharacter,
-      obscureText: widget.obscureText,
-      autocorrect: widget.autocorrect,
-      smartDashesType: widget.smartDashesType,
-      smartQuotesType: widget.smartQuotesType,
-      enableSuggestions: widget.enableSuggestions,
-      maxLines: widget.maxLines,
-      minLines: widget.minLines,
-      expands: widget.expands,
-      maxLength: widget.maxLength,
-      maxLengthEnforced: widget.maxLengthEnforced,
-      onChanged: widget.onChanged,
-      onEditingComplete: widget.onEditingComplete,
-      onSubmitted: widget.onSubmitted,
-      inputFormatters: widget.inputFormatters,
-      enabled: widget.enabled,
-      cursorWidth: widget.cursorWidth,
-      cursorHeight: widget.cursorHeight,
-      cursorColor: widget.cursorColor,
-      selectionHeightStyle: widget.selectionHeightStyle,
-      selectionWidthStyle: widget.selectionWidthStyle,
-      keyboardAppearance: widget.keyboardAppearance,
-      scrollPadding: widget.scrollPadding,
-      dragStartBehavior: widget.dragStartBehavior,
-      enableInteractiveSelection: widget.enableInteractiveSelection,
-      onTap: widget.onTap,
-      scrollController: widget.scrollController,
-      scrollPhysics: widget.scrollPhysics,
-      autofillHints: widget.autofillHints,
-      restorationId: widget.restorationId,
-    );
-  }
-
-  Widget _buildMaterialTextField(BuildContext context) {
+  @override
+  Widget build(BuildContext context) {
     assert(debugCheckHasMaterial(context));
     assert(debugCheckHasMaterialLocalizations(context));
     assert(debugCheckHasDirectionality(context));
@@ -1424,27 +1256,4 @@ class _TextFieldState extends State<TextField> with RestorationMixin implements
       ),
     );
   }
-
-  @override
-  Widget build(BuildContext context) {
-    switch (widget._textFieldType) {
-      case _TextFieldType.material:
-        return _buildMaterialTextField(context);
-
-      case _TextFieldType.adaptive: {
-        final ThemeData theme = Theme.of(context);
-        assert(theme.platform != null);
-        switch (theme.platform) {
-          case TargetPlatform.iOS:
-          case TargetPlatform.macOS:
-            return _buildCupertinoTextField(context);
-          case TargetPlatform.android:
-          case TargetPlatform.fuchsia:
-          case TargetPlatform.linux:
-          case TargetPlatform.windows:
-            return _buildMaterialTextField(context);
-        }
-      }
-    }
-  }
 }