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// 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.
import 'package:flutter/material.dart';
void main() {
// Changes made in https://github.com/flutter/flutter/pull/142151
WidgetState selected = WidgetState.selected;
WidgetState hovered = WidgetState.hovered;
WidgetState focused = WidgetState.focused;
WidgetState pressed = WidgetState.pressed;
WidgetState dragged = WidgetState.dragged;
WidgetState scrolledUnder = WidgetState.scrolledUnder;
WidgetState disabled = WidgetState.disabled;
WidgetState error = WidgetState.error;
final WidgetPropertyResolver<MouseCursor?> resolveCallback;
Color getColor(Set<WidgetState> states) {
if (states.contains(WidgetState.disabled)) {
if (states.contains(WidgetState.selected)) {
return Color(0xFF000002);
}
return Color(0xFF000004);
}
if (states.contains(WidgetState.selected)) {
return Color(0xFF000001);
}
return Color(0xFF000003);
}
final WidgetStateProperty<Color> backgroundColor = WidgetStateColor.resolveWith(getColor);
class _MouseCursor extends WidgetStateMouseCursor {
const _MouseCursor(this.resolveCallback);
final WidgetPropertyResolver<MouseCursor?> resolveCallback;
@override
MouseCursor resolve(Set<WidgetState> states) => resolveCallback(states) ?? MouseCursor.uncontrolled;
}
WidgetStateBorderSide? get side {
return WidgetStateBorderSide.resolveWith((Set<WidgetState> states) {
if (states.contains(WidgetState.disabled)) {
if (states.contains(WidgetState.selected)) {
return const BorderSide(width: 2.0);
}
return BorderSide(width: 1.0);
}
if (states.contains(WidgetState.selected)) {
return const BorderSide(width: 1.5);
}
return BorderSide(width: 0.5);
});
}
class SelectedBorder extends RoundedRectangleBorder implements WidgetStateOutlinedBorder {
const SelectedBorder();
@override
OutlinedBorder? resolve(Set<WidgetState> states) {
if (states.contains(WidgetState.selected)) {
return const RoundedRectangleBorder();
}
return null;
}
}
TextStyle floatingLabelStyle = WidgetStateTextStyle.resolveWith(
(Set<WidgetState> states) {
final Color color =
states.contains(WidgetState.error) ? Theme.of(context).colorScheme.error : Colors.orange;
return TextStyle(color: color, letterSpacing: 1.3);
},
);
final WidgetStateProperty<Icon?> thumbIcon =
WidgetStateProperty.resolveWith<Icon?>((Set<WidgetState> states) {
if (states.contains(WidgetState.selected)) {
return const Icon(Icons.check);
}
return const Icon(Icons.close);
});
final Color backgroundColor = WidgetStatePropertyAll<Color>(
Colors.blue.withOpacity(0.12),
);
final WidgetStatesController statesController =
WidgetStatesController(<WidgetState>{if (widget.selected) WidgetState.selected});
class _MyWidget extends StatefulWidget {
const _MyWidget({
required this.controller,
required this.evaluator,
required this.materialState,
});
final bool Function(_MyWidgetState state) evaluator;
/// Stream passed down to the child [_InnerWidget] to begin the process.
/// This plays the role of an actual user interaction in the wild, but allows
/// us to engage the system without mocking pointers/hovers etc.
final StreamController<bool> controller;
/// The value we're watching in the given test.
final WidgetState materialState;
@override
State createState() => _MyWidgetState();
}
}