Revert "iOS UITextInput autocorrection prompt (#45354)" (#47373)

This reverts commit 0f8c0da0a9ded2a9b7aa3bd01fcc29db80bbab0a.

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

@@ -876,8 +876,6 @@ class _CupertinoTextFieldState extends State<CupertinoTextField> with AutomaticK
       color: enabled ? decorationColor : (decorationColor ?? disabledColor),
     );
 
-    final Color selectionColor = CupertinoTheme.of(context).primaryColor.withOpacity(0.2);
-
     final Widget paddedEditable = Padding(
       padding: widget.padding,
       child: RepaintBoundary(
@@ -904,7 +902,7 @@ class _CupertinoTextFieldState extends State<CupertinoTextField> with AutomaticK
           maxLines: widget.maxLines,
           minLines: widget.minLines,
           expands: widget.expands,
-          selectionColor: selectionColor,
+          selectionColor: CupertinoTheme.of(context).primaryColor.withOpacity(0.2),
           selectionControls: widget.selectionEnabled
             ? cupertinoTextSelectionControls : null,
           onChanged: widget.onChanged,
@@ -919,7 +917,6 @@ class _CupertinoTextFieldState extends State<CupertinoTextField> with AutomaticK
           cursorOpacityAnimates: true,
           cursorOffset: cursorOffset,
           paintCursorAboveText: true,
-          autocorrectionTextRectColor: selectionColor,
           backgroundCursorColor: CupertinoDynamicColor.resolve(CupertinoColors.inactiveGray, context),
           scrollPadding: widget.scrollPadding,
           keyboardAppearance: keyboardAppearance,

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

@@ -942,7 +942,6 @@ class _TextFieldState extends State<TextField> implements TextSelectionGestureDe
     bool cursorOpacityAnimates;
     Offset cursorOffset;
     Color cursorColor = widget.cursorColor;
-    Color autocorrectionTextRectColor;
     Radius cursorRadius = widget.cursorRadius;
 
     switch (themeData.platform) {
@@ -955,7 +954,6 @@ class _TextFieldState extends State<TextField> implements TextSelectionGestureDe
         cursorColor ??= CupertinoTheme.of(context).primaryColor;
         cursorRadius ??= const Radius.circular(2.0);
         cursorOffset = Offset(iOSHorizontalOffset / MediaQuery.of(context).devicePixelRatio, 0);
-        autocorrectionTextRectColor = themeData.textSelectionColor;
         break;
 
       case TargetPlatform.android:
@@ -1015,7 +1013,6 @@ class _TextFieldState extends State<TextField> implements TextSelectionGestureDe
         dragStartBehavior: widget.dragStartBehavior,
         scrollController: widget.scrollController,
         scrollPhysics: widget.scrollPhysics,
-        autocorrectionTextRectColor: autocorrectionTextRectColor,
       ),
     );
 

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

@@ -210,8 +210,6 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin {
     double devicePixelRatio = 1.0,
     bool enableInteractiveSelection,
     EdgeInsets floatingCursorAddedMargin = const EdgeInsets.fromLTRB(4, 4, 4, 5),
-    TextRange promptRectRange,
-    Color promptRectColor,
     @required this.textSelectionDelegate,
   }) : assert(textAlign != null),
        assert(textDirection != null, 'RenderEditable created without a textDirection.'),
@@ -268,13 +266,10 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin {
        _endHandleLayerLink = endHandleLayerLink,
        _obscureText = obscureText,
        _readOnly = readOnly,
-       _forceLine = forceLine,
+       _forceLine = forceLine {
-       _promptRectRange = promptRectRange {
     assert(_showCursor != null);
     assert(!_showCursor.value || cursorColor != null);
     this.hasFocus = hasFocus ?? false;
-    if (promptRectColor != null)
-      _promptRectPaint.color = promptRectColor;
   }
 
   /// Character used to obscure text if [obscureText] is true.
@@ -1118,40 +1113,6 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin {
     return enableInteractiveSelection ?? !obscureText;
   }
 
-  /// The color used to paint the prompt rectangle.
-  ///
-  /// The prompt rectangle will only be requested on non-web iOS applications.
-  Color get promptRectColor => _promptRectPaint.color;
-  set promptRectColor(Color newValue) {
-    // Painter.color can not be null.
-    if (newValue == null) {
-      setPromptRectRange(null);
-      return;
-    }
-
-    if (promptRectColor == newValue)
-      return;
-
-    _promptRectPaint.color = newValue;
-    if (_promptRectRange != null)
-      markNeedsPaint();
-  }
-
-  TextRange _promptRectRange;
-  /// Dismisses the currently displayed prompt rectangle and displays a new prompt rectangle
-  /// over [newRange] in the given color [promptRectColor].
-  ///
-  /// The prompt rectangle will only be requested on non-web iOS applications.
-  ///
-  /// When set to null, the currently displayed prompt rectangle (if any) will be dismissed.
-  void setPromptRectRange(TextRange newRange) {
-    if (_promptRectRange == newRange)
-      return;
-
-    _promptRectRange = newRange;
-    markNeedsPaint();
-  }
-
   /// The maximum amount the text is allowed to scroll.
   ///
   /// This value is only valid after layout and can change as additional
@@ -1951,24 +1912,6 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin {
       canvas.drawRect(box.toRect().shift(effectiveOffset), paint);
   }
 
-  final Paint _promptRectPaint = Paint();
-  void _paintPromptRectIfNeeded(Canvas canvas, Offset effectiveOffset) {
-    if (_promptRectRange == null || promptRectColor == null) {
-      return;
-    }
-
-    final List<TextBox> boxes = _textPainter.getBoxesForSelection(
-      TextSelection(
-        baseOffset: _promptRectRange.start,
-        extentOffset: _promptRectRange.end,
-      ),
-    );
-
-    for (TextBox box in boxes) {
-      canvas.drawRect(box.toRect().shift(effectiveOffset), _promptRectPaint);
-    }
-  }
-
   void _paintContents(PaintingContext context, Offset offset) {
     assert(_textLayoutLastMaxWidth == constraints.maxWidth &&
            _textLayoutLastMinWidth == constraints.minWidth,
@@ -1991,8 +1934,6 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin {
       _paintSelection(context.canvas, effectiveOffset);
     }
 
-    _paintPromptRectIfNeeded(context.canvas, effectiveOffset);
-
     // On iOS, the cursor is painted over the text, on Android, it's painted
     // under it.
     if (paintCursorAboveText)

packages/flutter/lib/src/services/text_input.dart

@@ -753,12 +753,6 @@ abstract class TextInputClient {
   /// Updates the floating cursor position and state.
   void updateFloatingCursor(RawFloatingCursorPoint point);
 
-  /// Requests that this client display a prompt rectangle for the given text range,
-  /// to indicate the range of text that will be changed by a pending autocorrection.
-  ///
-  /// This method will only be called on iOS.
-  void showAutocorrectionPromptRect(int start, int end);
-
   /// Platform notified framework of closed connection.
   ///
   /// [TextInputClient] should cleanup its connection and finalize editing.
@@ -1082,9 +1076,6 @@ class TextInput {
       case 'TextInputClient.onConnectionClosed':
         _currentConnection._client.connectionClosed();
         break;
-      case 'TextInputClient.showAutocorrectionPromptRect':
-        _currentConnection._client.showAutocorrectionPromptRect(args[1], args[2]);
-        break;
       default:
         throw MissingPluginException();
     }

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

@@ -395,7 +395,6 @@ class EditableText extends StatefulWidget {
     this.enableInteractiveSelection = true,
     this.scrollController,
     this.scrollPhysics,
-    this.autocorrectionTextRectColor,
     this.toolbarOptions = const ToolbarOptions(
       copy: true,
       cut: true,
@@ -635,18 +634,6 @@ class EditableText extends StatefulWidget {
   /// Cannot be null.
   final Color cursorColor;
 
-  /// The color to use when painting the autocorrection Rect.
-  ///
-  /// For [CupertinoTextField]s, the value is set to the ambient
-  /// [CupertinoThemeData.primaryColor] with 20% opacity. For [TextField]s, the
-  /// value is null on non-iOS platforms and the same color used in [CupertinoTextField]
-  /// on iOS.
-  ///
-  /// Currently the autocorrection Rect only appears on iOS.
-  ///
-  /// Defaults to null, which disables autocorrection Rect painting.
-  final Color autocorrectionTextRectColor;
-
   /// The color to use when painting the background cursor aligned with the text
   /// while rendering the floating cursor.
   ///
@@ -750,10 +737,6 @@ class EditableText extends StatefulWidget {
   final bool autofocus;
 
   /// The color to use when painting the selection.
-  ///
-  /// For [CupertinoTextField]s, the value is set to the ambient
-  /// [CupertinoThemeData.primaryColor] with 20% opacity. For [TextField]s, the
-  /// value is set to the ambient [ThemeData.textSelectionColor].
   final Color selectionColor;
 
   /// Optional delegate for building the text selection handles and toolbar.
@@ -1229,7 +1212,6 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     if (value.text != _value.text) {
       hideToolbar();
       _showCaretOnScreen();
-      _currentPromptRectRange = null;
       if (widget.obscureText && value.text.length == _value.text.length + 1) {
         _obscureShowCharTicksPending = _kObscureShowLatestCharCursorTicks;
         _obscureLatestCharIndex = _value.selection.baseOffset;
@@ -1752,7 +1734,6 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
       WidgetsBinding.instance.removeObserver(this);
       // Clear the selection and composition state if this widget lost focus.
       _value = TextEditingValue(text: _value.text);
-      _currentPromptRectRange = null;
     }
     updateKeepAlive();
   }
@@ -1831,16 +1812,6 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     }
   }
 
-  // null if no promptRect should be shown.
-  TextRange _currentPromptRectRange;
-
-  @override
-  void showAutocorrectionPromptRect(int start, int end) {
-    setState(() {
-      _currentPromptRectRange = TextRange(start: start, end: end);
-    });
-  }
-
   VoidCallback _semanticsOnCopy(TextSelectionControls controls) {
     return widget.selectionEnabled && copyEnabled && _hasFocus && controls?.canCopy(this) == true
       ? () => controls.handleCopy(this)
@@ -1919,8 +1890,6 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
               enableInteractiveSelection: widget.enableInteractiveSelection,
               textSelectionDelegate: this,
               devicePixelRatio: _devicePixelRatio,
-              promptRectRange: _currentPromptRectRange,
-              promptRectColor: widget.autocorrectionTextRectColor,
             ),
           ),
         );
@@ -1989,8 +1958,6 @@ class _Editable extends LeafRenderObjectWidget {
     this.textSelectionDelegate,
     this.paintCursorAboveText,
     this.devicePixelRatio,
-    this.promptRectRange,
-    this.promptRectColor,
   }) : assert(textDirection != null),
        assert(rendererIgnoresPointer != null),
        super(key: key);
@@ -2031,8 +1998,6 @@ class _Editable extends LeafRenderObjectWidget {
   final TextSelectionDelegate textSelectionDelegate;
   final double devicePixelRatio;
   final bool paintCursorAboveText;
-  final TextRange promptRectRange;
-  final Color promptRectColor;
 
   @override
   RenderEditable createRenderObject(BuildContext context) {
@@ -2069,8 +2034,6 @@ class _Editable extends LeafRenderObjectWidget {
       enableInteractiveSelection: enableInteractiveSelection,
       textSelectionDelegate: textSelectionDelegate,
       devicePixelRatio: devicePixelRatio,
-      promptRectRange: promptRectRange,
-      promptRectColor: promptRectColor,
     );
   }
 
@@ -2106,8 +2069,6 @@ class _Editable extends LeafRenderObjectWidget {
       ..cursorOffset = cursorOffset
       ..textSelectionDelegate = textSelectionDelegate
       ..devicePixelRatio = devicePixelRatio
-      ..paintCursorAboveText = paintCursorAboveText
+      ..paintCursorAboveText = paintCursorAboveText;
-      ..promptRectColor = promptRectColor
-      ..setPromptRectRange(promptRectRange);
   }
 }

packages/flutter/test/rendering/editable_test.dart

@@ -546,44 +546,6 @@ void main() {
     expect(selectionChangedCount, 1);
   }, skip: isBrowser);
 
-  test('promptRect disappears when promptRectColor is set to null', () {
-    const Color promptRectColor = Color(0x12345678);
-    final TextSelectionDelegate delegate = FakeEditableTextState();
-    final RenderEditable editable = RenderEditable(
-      text: const TextSpan(
-        style: TextStyle(height: 1.0, fontSize: 10.0, fontFamily: 'Ahem'),
-        text: 'ABCDEFG',
-      ),
-      startHandleLayerLink: LayerLink(),
-      endHandleLayerLink: LayerLink(),
-      textAlign: TextAlign.start,
-      textDirection: TextDirection.ltr,
-      locale: const Locale('en', 'US'),
-      offset: ViewportOffset.fixed(10.0),
-      textSelectionDelegate: delegate,
-      selection: const TextSelection.collapsed(offset: 0),
-      promptRectColor: promptRectColor,
-      promptRectRange: const TextRange(start: 0, end: 1),
-    );
-    editable.layout(BoxConstraints.loose(const Size(1000.0, 1000.0)));
-
-    expect(
-      (Canvas canvas) => editable.paint(TestRecordingPaintingContext(canvas), Offset.zero),
-      paints..rect(color: promptRectColor),
-    );
-
-    editable.promptRectColor = null;
-
-    editable.layout(BoxConstraints.loose(const Size(1000.0, 1000.0)));
-    pumpFrame();
-
-    expect(editable.promptRectColor, promptRectColor);
-    expect(
-      (Canvas canvas) => editable.paint(TestRecordingPaintingContext(canvas), Offset.zero),
-      isNot(paints..rect(color: promptRectColor)),
-    );
-  });
-
   test('editable hasFocus correctly initialized', () {
     // Regression test for https://github.com/flutter/flutter/issues/21640
     final TextSelectionDelegate delegate = FakeEditableTextState();

packages/flutter/test/services/text_input_test.dart

@@ -72,10 +72,6 @@ void main() {
   });
 
   group('TextInputConfiguration', () {
-    tearDown(() {
-      TextInputConnection.debugResetId();
-    });
-
     test('sets expected defaults', () {
       const TextInputConfiguration configuration = TextInputConfiguration();
       expect(configuration.inputType, TextInputType.text);
@@ -176,28 +172,6 @@ void main() {
 
       expect(client.latestMethodCall, 'connectionClosed');
     });
-
-    test('TextInputClient showAutocorrectionPromptRect method is called', () async {
-      // Assemble a TextInputConnection so we can verify its change in state.
-      final FakeTextInputClient client = FakeTextInputClient();
-      const TextInputConfiguration configuration = TextInputConfiguration();
-      TextInput.attach(client, configuration);
-
-      expect(client.latestMethodCall, isEmpty);
-
-      // Send onConnectionClosed message.
-      final ByteData messageBytes = const JSONMessageCodec().encodeMessage(<String, dynamic>{
-        'args': <dynamic>[1, 0, 1],
-        'method': 'TextInputClient.showAutocorrectionPromptRect',
-      });
-      await ServicesBinding.instance.defaultBinaryMessenger.handlePlatformMessage(
-        'flutter/textinput',
-        messageBytes,
-        (ByteData _) {},
-      );
-
-      expect(client.latestMethodCall, 'showAutocorrectionPromptRect');
-    });
   });
 }
 
@@ -224,11 +198,6 @@ class FakeTextInputClient implements TextInputClient {
     latestMethodCall = 'connectionClosed';
   }
 
-  @override
-  void showAutocorrectionPromptRect(int start, int end) {
-    latestMethodCall = 'showAutocorrectionPromptRect';
-  }
-
   TextInputConfiguration get configuration => const TextInputConfiguration();
 }
 

packages/flutter/test/widgets/editable_text_test.dart

@@ -13,7 +13,6 @@ import 'package:flutter/services.dart';
 import 'package:mockito/mockito.dart';
 import 'package:flutter/foundation.dart';
 
-import '../rendering/mock_canvas.dart';
 import 'editable_text_utils.dart';
 import 'semantics_tester.dart';
 
@@ -1339,86 +1338,6 @@ void main() {
     assert(!onEditingCompleteCalled);
   });
 
-  testWidgets(
-    'iOS autocorrection rectangle should appear on demand'
-    'and dismiss when the text changes or when focus is lost',
-    (WidgetTester tester) async {
-      const Color rectColor = Color(0xFFFF0000);
-
-      void verifyAutocorrectionRectVisibility({ bool expectVisible }) {
-        PaintPattern evaluate() {
-          if (expectVisible) {
-            return paints..something(((Symbol method, List<dynamic> arguments) {
-              if (method != #drawRect)
-                return false;
-              final Paint paint = arguments[1];
-              return paint.color == rectColor;
-            }));
-          } else {
-            return paints..everything(((Symbol method, List<dynamic> arguments) {
-              if (method != #drawRect)
-                return true;
-              final Paint paint = arguments[1];
-              if (paint.color != rectColor)
-                return true;
-              throw 'Expected: autocorrection rect not visible, found: ${arguments[0]}';
-            }));
-          }
-        }
-
-        expect(findRenderEditable(tester), evaluate());
-      }
-
-      final FocusNode focusNode = FocusNode();
-      final TextEditingController controller = TextEditingController(text: 'ABCDEFG');
-
-      final Widget widget = MaterialApp(
-        home: EditableText(
-          backgroundCursorColor: Colors.grey,
-          controller: controller,
-          focusNode: focusNode,
-          style: Typography(platform: TargetPlatform.android).black.subhead,
-          cursorColor: Colors.blue,
-          autocorrect: true,
-          autocorrectionTextRectColor: rectColor,
-          showCursor: false,
-          onEditingComplete: () { },
-        ),
-      );
-
-      await tester.pumpWidget(widget);
-
-      await tester.tap(find.byType(EditableText));
-      await tester.pump();
-      final EditableTextState state = tester.state<EditableTextState>(find.byType(EditableText));
-
-      assert(focusNode.hasFocus);
-
-      // The prompt rect should be invisible initially.
-      verifyAutocorrectionRectVisibility(expectVisible: false);
-
-      state.showAutocorrectionPromptRect(0, 1);
-      await tester.pump();
-
-      // Show prompt rect when told to.
-      verifyAutocorrectionRectVisibility(expectVisible: true);
-
-      // Text changed, prompt rect goes away.
-      controller.text = '12345';
-      await tester.pump();
-      verifyAutocorrectionRectVisibility(expectVisible: false);
-
-      state.showAutocorrectionPromptRect(0, 1);
-      await tester.pump();
-
-      verifyAutocorrectionRectVisibility(expectVisible: true);
-
-      // Unfocus, prompt rect should go away.
-      focusNode.unfocus();
-      await tester.pump();
-      verifyAutocorrectionRectVisibility(expectVisible: false);
-  });
-
   testWidgets('Changing controller updates EditableText', (WidgetTester tester) async {
     final TextEditingController controller1 =
         TextEditingController(text: 'Wibble');