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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.
// @dart = 2.8
import 'dart:ui' show window;
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/painting.dart';
import '../rendering/mock_canvas.dart';
RenderBox getMaterialBox(WidgetTester tester) {
return tester.firstRenderObject<RenderBox>(
find.descendant(
of: find.byType(RawChip),
matching: find.byType(CustomPaint),
),
);
}
Material getMaterial(WidgetTester tester) {
return tester.widget<Material>(
find.descendant(
of: find.byType(RawChip),
matching: find.byType(Material),
),
);
}
IconThemeData getIconData(WidgetTester tester) {
final IconTheme iconTheme = tester.firstWidget(
find.descendant(
of: find.byType(RawChip),
matching: find.byType(IconTheme),
),
);
return iconTheme.data;
}
DefaultTextStyle getLabelStyle(WidgetTester tester) {
return tester.widget(
find
.descendant(
of: find.byType(RawChip),
matching: find.byType(DefaultTextStyle),
)
.last,
);
}
void main() {
testWidgets('Chip theme is built by ThemeData', (WidgetTester tester) async {
final ThemeData theme = ThemeData(
platform: TargetPlatform.android,
primarySwatch: Colors.red,
);
final ChipThemeData chipTheme = theme.chipTheme;
expect(chipTheme.backgroundColor, equals(Colors.black.withAlpha(0x1f)));
expect(chipTheme.selectedColor, equals(Colors.black.withAlpha(0x3d)));
expect(chipTheme.deleteIconColor, equals(Colors.black.withAlpha(0xde)));
});
testWidgets('Chip uses ThemeData chip theme if present', (WidgetTester tester) async {
final ThemeData theme = ThemeData(
platform: TargetPlatform.android,
primarySwatch: Colors.red,
backgroundColor: Colors.blue,
);
final ChipThemeData chipTheme = theme.chipTheme;
Widget buildChip(ChipThemeData data) {
return MaterialApp(
locale: const Locale('en', 'us'),
home: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: MediaQueryData.fromWindow(window),
child: Material(
child: Center(
child: Theme(
data: theme,
child: RawChip(
showCheckmark: true,
onDeleted: () { },
tapEnabled: true,
avatar: const Placeholder(),
deleteIcon: const Placeholder(),
isEnabled: true,
selected: false,
label: const Text('Chip'),
onSelected: (bool newValue) { },
onPressed: null,
),
),
),
),
),
));
}
await tester.pumpWidget(buildChip(chipTheme));
await tester.pumpAndSettle();
final RenderBox materialBox = getMaterialBox(tester);
expect(materialBox, paints..path(color: chipTheme.backgroundColor));
});
testWidgets('Chip overrides ThemeData theme if ChipTheme present', (WidgetTester tester) async {
final ThemeData theme = ThemeData(
platform: TargetPlatform.android,
primarySwatch: Colors.red,
);
final ChipThemeData chipTheme = theme.chipTheme;
final ChipThemeData customTheme = chipTheme.copyWith(
backgroundColor: Colors.purple,
deleteIconColor: Colors.purple.withAlpha(0x3d),
elevation: 3.0,
shadowColor: Colors.pink,
);
const bool value = false;
Widget buildChip(ChipThemeData data) {
return MaterialApp(
home: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: MediaQueryData.fromWindow(window),
child: Material(
child: Center(
child: Theme(
data: theme,
child: ChipTheme(
data: customTheme,
child: RawChip(
showCheckmark: true,
onDeleted: () { },
tapEnabled: true,
avatar: const Placeholder(),
deleteIcon: const Placeholder(),
isEnabled: true,
selected: value,
label: const Text('$value'),
onSelected: (bool newValue) { },
onPressed: null,
),
),
),
),
),
),
));
}
await tester.pumpWidget(buildChip(chipTheme));
await tester.pumpAndSettle();
final RenderBox materialBox = getMaterialBox(tester);
final Material material = getMaterial(tester);
expect(materialBox, paints..path(color: Color(customTheme.backgroundColor.value)));
expect(material.elevation, customTheme.elevation);
expect(material.shadowColor, customTheme.shadowColor);
});
testWidgets('ChipThemeData generates correct opacities for defaults', (WidgetTester tester) async {
const Color customColor1 = Color(0xcafefeed);
const Color customColor2 = Color(0xdeadbeef);
final TextStyle customStyle = ThemeData.fallback().textTheme.bodyText1.copyWith(color: customColor2);
final ChipThemeData lightTheme = ChipThemeData.fromDefaults(
secondaryColor: customColor1,
brightness: Brightness.light,
labelStyle: customStyle,
);
expect(lightTheme.backgroundColor, equals(Colors.black.withAlpha(0x1f)));
expect(lightTheme.deleteIconColor, equals(Colors.black.withAlpha(0xde)));
expect(lightTheme.disabledColor, equals(Colors.black.withAlpha(0x0c)));
expect(lightTheme.selectedColor, equals(Colors.black.withAlpha(0x3d)));
expect(lightTheme.secondarySelectedColor, equals(customColor1.withAlpha(0x3d)));
expect(lightTheme.labelPadding, isNull);
expect(lightTheme.padding, equals(const EdgeInsets.all(4.0)));
expect(lightTheme.shape, isA<StadiumBorder>());
expect(lightTheme.labelStyle.color, equals(Colors.black.withAlpha(0xde)));
expect(lightTheme.secondaryLabelStyle.color, equals(customColor1.withAlpha(0xde)));
expect(lightTheme.brightness, equals(Brightness.light));
final ChipThemeData darkTheme = ChipThemeData.fromDefaults(
secondaryColor: customColor1,
brightness: Brightness.dark,
labelStyle: customStyle,
);
expect(darkTheme.backgroundColor, equals(Colors.white.withAlpha(0x1f)));
expect(darkTheme.deleteIconColor, equals(Colors.white.withAlpha(0xde)));
expect(darkTheme.disabledColor, equals(Colors.white.withAlpha(0x0c)));
expect(darkTheme.selectedColor, equals(Colors.white.withAlpha(0x3d)));
expect(darkTheme.secondarySelectedColor, equals(customColor1.withAlpha(0x3d)));
expect(darkTheme.labelPadding, isNull);
expect(darkTheme.padding, equals(const EdgeInsets.all(4.0)));
expect(darkTheme.shape, isA<StadiumBorder>());
expect(darkTheme.labelStyle.color, equals(Colors.white.withAlpha(0xde)));
expect(darkTheme.secondaryLabelStyle.color, equals(customColor1.withAlpha(0xde)));
expect(darkTheme.brightness, equals(Brightness.dark));
final ChipThemeData customTheme = ChipThemeData.fromDefaults(
primaryColor: customColor1,
secondaryColor: customColor2,
labelStyle: customStyle,
);
expect(customTheme.backgroundColor, equals(customColor1.withAlpha(0x1f)));
expect(customTheme.deleteIconColor, equals(customColor1.withAlpha(0xde)));
expect(customTheme.disabledColor, equals(customColor1.withAlpha(0x0c)));
expect(customTheme.selectedColor, equals(customColor1.withAlpha(0x3d)));
expect(customTheme.secondarySelectedColor, equals(customColor2.withAlpha(0x3d)));
expect(customTheme.labelPadding, isNull);
expect(customTheme.padding, equals(const EdgeInsets.all(4.0)));
expect(customTheme.shape, isA<StadiumBorder>());
expect(customTheme.labelStyle.color, equals(customColor1.withAlpha(0xde)));
expect(customTheme.secondaryLabelStyle.color, equals(customColor2.withAlpha(0xde)));
expect(customTheme.brightness, equals(Brightness.light));
});
testWidgets('ChipThemeData lerps correctly', (WidgetTester tester) async {
final ChipThemeData chipThemeBlack = ChipThemeData.fromDefaults(
secondaryColor: Colors.black,
brightness: Brightness.dark,
labelStyle: ThemeData.fallback().textTheme.bodyText1.copyWith(color: Colors.black),
).copyWith(
elevation: 1.0,
labelPadding: const EdgeInsets.symmetric(horizontal: 8.0),
pressElevation: 4.0,
shadowColor: Colors.black,
selectedShadowColor: Colors.black,
checkmarkColor: Colors.black,
);
final ChipThemeData chipThemeWhite = ChipThemeData.fromDefaults(
secondaryColor: Colors.white,
brightness: Brightness.light,
labelStyle: ThemeData.fallback().textTheme.bodyText1.copyWith(color: Colors.white),
).copyWith(
padding: const EdgeInsets.all(2.0),
labelPadding: const EdgeInsets.only(top: 8.0, bottom: 8.0),
elevation: 5.0,
pressElevation: 10.0,
shadowColor: Colors.white,
selectedShadowColor: Colors.white,
checkmarkColor: Colors.white,
);
final ChipThemeData lerp = ChipThemeData.lerp(chipThemeBlack, chipThemeWhite, 0.5);
const Color middleGrey = Color(0xff7f7f7f);
expect(lerp.backgroundColor, equals(middleGrey.withAlpha(0x1f)));
expect(lerp.deleteIconColor, equals(middleGrey.withAlpha(0xde)));
expect(lerp.disabledColor, equals(middleGrey.withAlpha(0x0c)));
expect(lerp.selectedColor, equals(middleGrey.withAlpha(0x3d)));
expect(lerp.secondarySelectedColor, equals(middleGrey.withAlpha(0x3d)));
expect(lerp.shadowColor, equals(middleGrey));
expect(lerp.selectedShadowColor, equals(middleGrey));
expect(lerp.labelPadding, equals(const EdgeInsets.all(4.0)));
expect(lerp.padding, equals(const EdgeInsets.all(3.0)));
expect(lerp.shape, isA<StadiumBorder>());
expect(lerp.labelStyle.color, equals(middleGrey.withAlpha(0xde)));
expect(lerp.secondaryLabelStyle.color, equals(middleGrey.withAlpha(0xde)));
expect(lerp.brightness, equals(Brightness.light));
expect(lerp.elevation, 3.0);
expect(lerp.pressElevation, 7.0);
expect(lerp.checkmarkColor, equals(middleGrey));
expect(ChipThemeData.lerp(null, null, 0.25), isNull);
final ChipThemeData lerpANull25 = ChipThemeData.lerp(null, chipThemeWhite, 0.25);
expect(lerpANull25.backgroundColor, equals(Colors.black.withAlpha(0x08)));
expect(lerpANull25.deleteIconColor, equals(Colors.black.withAlpha(0x38)));
expect(lerpANull25.disabledColor, equals(Colors.black.withAlpha(0x03)));
expect(lerpANull25.selectedColor, equals(Colors.black.withAlpha(0x0f)));
expect(lerpANull25.secondarySelectedColor, equals(Colors.white.withAlpha(0x0f)));
expect(lerpANull25.shadowColor, equals(Colors.white.withAlpha(0x40)));
expect(lerpANull25.selectedShadowColor, equals(Colors.white.withAlpha(0x40)));
expect(lerpANull25.labelPadding, equals(const EdgeInsets.only(left: 0.0, top: 2.0, right: 0.0, bottom: 2.0)));
expect(lerpANull25.padding, equals(const EdgeInsets.all(0.5)));
expect(lerpANull25.shape, isA<StadiumBorder>());
expect(lerpANull25.labelStyle.color, equals(Colors.black.withAlpha(0x38)));
expect(lerpANull25.secondaryLabelStyle.color, equals(Colors.white.withAlpha(0x38)));
expect(lerpANull25.brightness, equals(Brightness.light));
expect(lerpANull25.elevation, 1.25);
expect(lerpANull25.pressElevation, 2.5);
expect(lerpANull25.checkmarkColor, equals(Colors.white.withAlpha(0x40)));
final ChipThemeData lerpANull75 = ChipThemeData.lerp(null, chipThemeWhite, 0.75);
expect(lerpANull75.backgroundColor, equals(Colors.black.withAlpha(0x17)));
expect(lerpANull75.deleteIconColor, equals(Colors.black.withAlpha(0xa7)));
expect(lerpANull75.disabledColor, equals(Colors.black.withAlpha(0x09)));
expect(lerpANull75.selectedColor, equals(Colors.black.withAlpha(0x2e)));
expect(lerpANull75.secondarySelectedColor, equals(Colors.white.withAlpha(0x2e)));
expect(lerpANull75.shadowColor, equals(Colors.white.withAlpha(0xbf)));
expect(lerpANull75.selectedShadowColor, equals(Colors.white.withAlpha(0xbf)));
expect(lerpANull75.labelPadding, equals(const EdgeInsets.only(left: 0.0, top: 6.0, right: 0.0, bottom: 6.0)));
expect(lerpANull75.padding, equals(const EdgeInsets.all(1.5)));
expect(lerpANull75.shape, isA<StadiumBorder>());
expect(lerpANull75.labelStyle.color, equals(Colors.black.withAlpha(0xa7)));
expect(lerpANull75.secondaryLabelStyle.color, equals(Colors.white.withAlpha(0xa7)));
expect(lerpANull75.brightness, equals(Brightness.light));
expect(lerpANull75.elevation, 3.75);
expect(lerpANull75.pressElevation, 7.5);
expect(lerpANull75.checkmarkColor, equals(Colors.white.withAlpha(0xbf)));
final ChipThemeData lerpBNull25 = ChipThemeData.lerp(chipThemeBlack, null, 0.25);
expect(lerpBNull25.backgroundColor, equals(Colors.white.withAlpha(0x17)));
expect(lerpBNull25.deleteIconColor, equals(Colors.white.withAlpha(0xa7)));
expect(lerpBNull25.disabledColor, equals(Colors.white.withAlpha(0x09)));
expect(lerpBNull25.selectedColor, equals(Colors.white.withAlpha(0x2e)));
expect(lerpBNull25.secondarySelectedColor, equals(Colors.black.withAlpha(0x2e)));
expect(lerpBNull25.shadowColor, equals(Colors.black.withAlpha(0xbf)));
expect(lerpBNull25.selectedShadowColor, equals(Colors.black.withAlpha(0xbf)));
expect(lerpBNull25.labelPadding, equals(const EdgeInsets.only(left: 6.0, top: 0.0, right: 6.0, bottom: 0.0)));
expect(lerpBNull25.padding, equals(const EdgeInsets.all(3.0)));
expect(lerpBNull25.shape, isA<StadiumBorder>());
expect(lerpBNull25.labelStyle.color, equals(Colors.white.withAlpha(0xa7)));
expect(lerpBNull25.secondaryLabelStyle.color, equals(Colors.black.withAlpha(0xa7)));
expect(lerpBNull25.brightness, equals(Brightness.dark));
expect(lerpBNull25.elevation, 0.75);
expect(lerpBNull25.pressElevation, 3.0);
expect(lerpBNull25.checkmarkColor, equals(Colors.black.withAlpha(0xbf)));
final ChipThemeData lerpBNull75 = ChipThemeData.lerp(chipThemeBlack, null, 0.75);
expect(lerpBNull75.backgroundColor, equals(Colors.white.withAlpha(0x08)));
expect(lerpBNull75.deleteIconColor, equals(Colors.white.withAlpha(0x38)));
expect(lerpBNull75.disabledColor, equals(Colors.white.withAlpha(0x03)));
expect(lerpBNull75.selectedColor, equals(Colors.white.withAlpha(0x0f)));
expect(lerpBNull75.secondarySelectedColor, equals(Colors.black.withAlpha(0x0f)));
expect(lerpBNull75.shadowColor, equals(Colors.black.withAlpha(0x40)));
expect(lerpBNull75.selectedShadowColor, equals(Colors.black.withAlpha(0x40)));
expect(lerpBNull75.labelPadding, equals(const EdgeInsets.only(left: 2.0, top: 0.0, right: 2.0, bottom: 0.0)));
expect(lerpBNull75.padding, equals(const EdgeInsets.all(1.0)));
expect(lerpBNull75.shape, isA<StadiumBorder>());
expect(lerpBNull75.labelStyle.color, equals(Colors.white.withAlpha(0x38)));
expect(lerpBNull75.secondaryLabelStyle.color, equals(Colors.black.withAlpha(0x38)));
expect(lerpBNull75.brightness, equals(Brightness.light));
expect(lerpBNull75.elevation, 0.25);
expect(lerpBNull75.pressElevation, 1.0);
expect(lerpBNull75.checkmarkColor, equals(Colors.black.withAlpha(0x40)));
});
testWidgets('Chip uses stateful color from chip theme', (WidgetTester tester) async {
final FocusNode focusNode = FocusNode();
const Color pressedColor = Color(0x00000001);
const Color hoverColor = Color(0x00000002);
const Color focusedColor = Color(0x00000003);
const Color defaultColor = Color(0x00000004);
const Color selectedColor = Color(0x00000005);
const Color disabledColor = Color(0x00000006);
Color getTextColor(Set<MaterialState> states) {
if (states.contains(MaterialState.disabled))
return disabledColor;
if (states.contains(MaterialState.pressed))
return pressedColor;
if (states.contains(MaterialState.hovered))
return hoverColor;
if (states.contains(MaterialState.focused))
return focusedColor;
if (states.contains(MaterialState.selected))
return selectedColor;
return defaultColor;
}
final TextStyle labelStyle = TextStyle(
color: MaterialStateColor.resolveWith(getTextColor),
);
Widget chipWidget({ bool enabled = true, bool selected = false }) {
return MaterialApp(
theme: ThemeData(
chipTheme: ThemeData.light().chipTheme.copyWith(
labelStyle: labelStyle,
secondaryLabelStyle: labelStyle,
),
),
home: Scaffold(
body: Focus(
focusNode: focusNode,
child: ChoiceChip(
label: const Text('Chip'),
selected: selected,
onSelected: enabled ? (_) {} : null,
),
),
),
);
}
Color textColor() {
return tester.renderObject<RenderParagraph>(find.text('Chip')).text.style.color;
}
// Default, not disabled.
await tester.pumpWidget(chipWidget());
expect(textColor(), equals(defaultColor));
// Selected.
await tester.pumpWidget(chipWidget(selected: true));
expect(textColor(), selectedColor);
// Focused.
final FocusNode chipFocusNode = focusNode.children.first;
chipFocusNode.requestFocus();
await tester.pumpAndSettle();
expect(textColor(), focusedColor);
// Hovered.
final Offset center = tester.getCenter(find.byType(ChoiceChip));
final TestGesture gesture = await tester.createGesture(
kind: PointerDeviceKind.mouse,
);
await gesture.addPointer();
await gesture.moveTo(center);
await tester.pumpAndSettle();
expect(textColor(), hoverColor);
// Pressed.
await gesture.down(center);
await tester.pumpAndSettle();
expect(textColor(), pressedColor);
// Disabled.
await tester.pumpWidget(chipWidget(enabled: false));
await tester.pumpAndSettle();
expect(textColor(), disabledColor);
// Teardown.
await gesture.removePointer();
});
}