Revert "Added support for MaterialState to InputDecorator (#91182)" (#91448)

This reverts commit 1c374c65.

examples/api/lib/material/input_decorator/input_decoration.material_state.0.dart

-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flutter code sample for InputDecoration
-
-import 'package:flutter/material.dart';
-
-void main() => runApp(const MyApp());
-
-class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
-  static const String _title = 'Flutter Code Sample';
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: _title,
-      home: Scaffold(
-        appBar: AppBar(title: const Text(_title)),
-        body: const MyStatelessWidget(),
-      ),
-    );
-  }
-}
-
-class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return TextFormField(
-      initialValue: 'abc',
-      decoration: InputDecoration(
-        prefixIcon: const Icon(Icons.person),
-        prefixIconColor: MaterialStateColor.resolveWith((Set<MaterialState> states) {
-          if (states.contains(MaterialState.focused)) {
-            return Colors.green;
-          } if (states.contains(MaterialState.error)) {
-            return Colors.red;
-          }
-          return Colors.grey;
-        }),
-      ),
-    );
-  }
-}

examples/api/lib/material/input_decorator/input_decoration.material_state.1.dart

-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flutter code sample for InputDecoration
-
-import 'package:flutter/material.dart';
-
-void main() => runApp(const MyApp());
-
-class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
-  static const String _title = 'Flutter Code Sample';
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: _title,
-      home: Scaffold(
-        appBar: AppBar(title: const Text(_title)),
-        body: const MyStatelessWidget(),
-      ),
-    );
-  }
-}
-
-class MyStatelessWidget extends StatelessWidget {
-  const MyStatelessWidget({Key? key}) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    final ThemeData themeData = Theme.of(context);
-    return Theme(
-      data: themeData.copyWith(
-        inputDecorationTheme: themeData.inputDecorationTheme.copyWith(
-          prefixIconColor: MaterialStateColor.resolveWith((Set<MaterialState> states) {
-            if (states.contains(MaterialState.focused)) {
-              return Colors.green;
-            } if (states.contains(MaterialState.error)) {
-              return Colors.red;
-            }
-            return Colors.grey;
-          }),
-        )
-      ),
-      child: TextFormField(
-        initialValue: 'abc',
-        decoration: const InputDecoration(
-          prefixIcon: Icon(Icons.person),
-        ),
-      ),
-    );
-  }
-}

packages/flutter/test/material/input_decorator_test.dart

@@ -3664,110 +3664,6 @@ void main() {
     expect(decoration.constraints, const BoxConstraints(minWidth: 10, maxWidth: 20, minHeight: 30, maxHeight: 40));
   });
 
-  testWidgets('InputDecorationTheme.inputDecoration with MaterialState', (WidgetTester tester) async {
-    final MaterialStateTextStyle themeStyle =  MaterialStateTextStyle.resolveWith((Set<MaterialState> states) {
-      return const TextStyle(color: Colors.green);
-    });
-
-    final MaterialStateTextStyle decorationStyle =  MaterialStateTextStyle.resolveWith((Set<MaterialState> states) {
-      return const TextStyle(color: Colors.blue);
-    });
-
-    // InputDecorationTheme arguments define InputDecoration properties.
-    InputDecoration decoration = const InputDecoration().applyDefaults(
-      InputDecorationTheme(
-        labelStyle: themeStyle,
-        helperStyle: themeStyle,
-        hintStyle: themeStyle,
-        errorStyle: themeStyle,
-        isDense: true,
-        contentPadding: const EdgeInsets.all(1.0),
-        prefixStyle: themeStyle,
-        suffixStyle: themeStyle,
-        counterStyle: themeStyle,
-        filled: true,
-        fillColor: Colors.red,
-        focusColor: Colors.blue,
-        border: InputBorder.none,
-        alignLabelWithHint: true,
-        constraints: const BoxConstraints(minWidth: 10, maxWidth: 20, minHeight: 30, maxHeight: 40),
-      ),
-    );
-
-    expect(decoration.labelStyle, themeStyle);
-    expect(decoration.helperStyle, themeStyle);
-    expect(decoration.hintStyle, themeStyle);
-    expect(decoration.errorStyle, themeStyle);
-    expect(decoration.isDense, true);
-    expect(decoration.contentPadding, const EdgeInsets.all(1.0));
-    expect(decoration.prefixStyle, themeStyle);
-    expect(decoration.suffixStyle, themeStyle);
-    expect(decoration.counterStyle, themeStyle);
-    expect(decoration.filled, true);
-    expect(decoration.fillColor, Colors.red);
-    expect(decoration.border, InputBorder.none);
-    expect(decoration.alignLabelWithHint, true);
-    expect(decoration.constraints, const BoxConstraints(minWidth: 10, maxWidth: 20, minHeight: 30, maxHeight: 40));
-
-    // InputDecoration (baseDecoration) defines InputDecoration properties
-    final MaterialStateOutlineInputBorder border = MaterialStateOutlineInputBorder.resolveWith((Set<MaterialState> states) {
-      return const OutlineInputBorder();
-    });
-    decoration = InputDecoration(
-      labelStyle: decorationStyle,
-      helperStyle: decorationStyle,
-      hintStyle: decorationStyle,
-      errorStyle: decorationStyle,
-      isDense: false,
-      contentPadding: const EdgeInsets.all(4.0),
-      prefixStyle: decorationStyle,
-      suffixStyle: decorationStyle,
-      counterStyle: decorationStyle,
-      filled: false,
-      fillColor: Colors.blue,
-      border: border,
-      alignLabelWithHint: false,
-      constraints: const BoxConstraints(minWidth: 10, maxWidth: 20, minHeight: 30, maxHeight: 40),
-    ).applyDefaults(
-      InputDecorationTheme(
-        labelStyle: themeStyle,
-        helperStyle: themeStyle,
-        helperMaxLines: 5,
-        hintStyle: themeStyle,
-        errorStyle: themeStyle,
-        errorMaxLines: 4,
-        isDense: true,
-        contentPadding: const EdgeInsets.all(1.0),
-        prefixStyle: themeStyle,
-        suffixStyle: themeStyle,
-        counterStyle: themeStyle,
-        filled: true,
-        fillColor: Colors.red,
-        focusColor: Colors.blue,
-        border: InputBorder.none,
-        alignLabelWithHint: true,
-        constraints: const BoxConstraints(minWidth: 40, maxWidth: 30, minHeight: 20, maxHeight: 10),
-      ),
-    );
-
-    expect(decoration.labelStyle, decorationStyle);
-    expect(decoration.helperStyle, decorationStyle);
-    expect(decoration.helperMaxLines, 5);
-    expect(decoration.hintStyle, decorationStyle);
-    expect(decoration.errorStyle, decorationStyle);
-    expect(decoration.errorMaxLines, 4);
-    expect(decoration.isDense, false);
-    expect(decoration.contentPadding, const EdgeInsets.all(4.0));
-    expect(decoration.prefixStyle, decorationStyle);
-    expect(decoration.suffixStyle, decorationStyle);
-    expect(decoration.counterStyle, decorationStyle);
-    expect(decoration.filled, false);
-    expect(decoration.fillColor, Colors.blue);
-    expect(decoration.border, isA<MaterialStateOutlineInputBorder>());
-    expect(decoration.alignLabelWithHint, false);
-    expect(decoration.constraints, const BoxConstraints(minWidth: 10, maxWidth: 20, minHeight: 30, maxHeight: 40));
-  });
-
   testWidgets('InputDecorator OutlineInputBorder fillColor is clipped by border', (WidgetTester tester) async {
     // This is a regression test for https://github.com/flutter/flutter/issues/15742