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Revert "Fix divider width in scrollable TabBar for Material 3 and add dividerHeight parameter (#123127)" (#123616)

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Revert "Fix divider width in scrollable `TabBar` for  Material 3 and add `dividerHeight` parameter"
This commit is contained in:
Kate Lovett 2023-03-28 11:45:15 -05:00 committed by GitHub
parent 12b36de8f7
commit 3dfc60c0d1
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 74 additions and 171 deletions
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6
dev/tools/gen_defaults/lib/tabs_template.dart
View file

@ -20,9 +20,6 @@ class _${blockName}PrimaryDefaultsM3 extends TabBarTheme {
late final ColorScheme _colors = Theme.of(context).colorScheme;
late final TextTheme _textTheme = Theme.of(context).textTheme;
@override
double? get dividerHeight => ${tokens['md.comp.primary-navigation-tab.divider.height']};
@override
Color? get dividerColor => ${componentColor("md.comp.primary-navigation-tab.divider")};
@ -84,9 +81,6 @@ class _${blockName}SecondaryDefaultsM3 extends TabBarTheme {
@override
Color? get dividerColor => ${componentColor("md.comp.secondary-navigation-tab.divider")};
@override
double? get dividerHeight => ${tokens['md.comp.primary-navigation-tab.divider.height']};
@override
Color? get indicatorColor => ${componentColor("md.comp.primary-navigation-tab.active-indicator")};

9
packages/flutter/lib/src/material/tab_bar_theme.dart
View file

@ -32,7 +32,6 @@ class TabBarTheme with Diagnosticable {
this.indicatorColor,
this.indicatorSize,
this.dividerColor,
this.dividerHeight,
this.labelColor,
this.labelPadding,
this.labelStyle,
@ -55,9 +54,6 @@ class TabBarTheme with Diagnosticable {
/// Overrides the default value for [TabBar.dividerColor].
final Color? dividerColor;
/// Overrides the default value for [TabBar.dividerHeight].
final double? dividerHeight;
/// Overrides the default value for [TabBar.labelColor].
///
/// If [labelColor] is a [MaterialStateColor], then the effective color will
@ -101,7 +97,6 @@ class TabBarTheme with Diagnosticable {
Color? indicatorColor,
TabBarIndicatorSize? indicatorSize,
Color? dividerColor,
double? dividerHeight,
Color? labelColor,
EdgeInsetsGeometry? labelPadding,
TextStyle? labelStyle,
@ -116,7 +111,6 @@ class TabBarTheme with Diagnosticable {
indicatorColor: indicatorColor ?? this.indicatorColor,
indicatorSize: indicatorSize ?? this.indicatorSize,
dividerColor: dividerColor ?? this.dividerColor,
dividerHeight: dividerHeight ?? this.dividerHeight,
labelColor: labelColor ?? this.labelColor,
labelPadding: labelPadding ?? this.labelPadding,
labelStyle: labelStyle ?? this.labelStyle,
@ -147,7 +141,6 @@ class TabBarTheme with Diagnosticable {
indicatorColor: Color.lerp(a.indicatorColor, b.indicatorColor, t),
indicatorSize: t < 0.5 ? a.indicatorSize : b.indicatorSize,
dividerColor: Color.lerp(a.dividerColor, b.dividerColor, t),
dividerHeight: t < 0.5 ? a.dividerHeight : b.dividerHeight,
labelColor: Color.lerp(a.labelColor, b.labelColor, t),
labelPadding: EdgeInsetsGeometry.lerp(a.labelPadding, b.labelPadding, t),
labelStyle: TextStyle.lerp(a.labelStyle, b.labelStyle, t),
@ -165,7 +158,6 @@ class TabBarTheme with Diagnosticable {
indicatorColor,
indicatorSize,
dividerColor,
dividerHeight,
labelColor,
labelPadding,
labelStyle,
@ -189,7 +181,6 @@ class TabBarTheme with Diagnosticable {
&& other.indicatorColor == indicatorColor
&& other.indicatorSize == indicatorSize
&& other.dividerColor == dividerColor
&& other.dividerHeight == dividerHeight
&& other.labelColor == labelColor
&& other.labelPadding == labelPadding
&& other.labelStyle == labelStyle

3
packages/flutter/lib/src/material/tab_indicator.dart
View file

@ -109,8 +109,7 @@ class _UnderlinePainter extends BoxPainter {
if (borderRadius != null) {
paint = Paint()..color = decoration.borderSide.color;
final Rect indicator = decoration._indicatorRectFor(rect, textDirection)
.inflate(decoration.borderSide.width / 4.0)
.shift(Offset(0.0, -decoration.borderSide.width / 2.0));
.inflate(decoration.borderSide.width / 4.0);
final RRect rrect = RRect.fromRectAndCorners(
indicator,
topLeft: borderRadius!.topLeft,

73
packages/flutter/lib/src/material/tabs.dart
View file

@ -15,7 +15,6 @@ import 'color_scheme.dart';
import 'colors.dart';
import 'constants.dart';
import 'debug.dart';
import 'divider.dart';
import 'ink_well.dart';
import 'material.dart';
import 'material_localizations.dart';
@ -361,6 +360,7 @@ class _IndicatorPainter extends CustomPainter {
required _IndicatorPainter? old,
required this.indicatorPadding,
required this.labelPaddings,
this.dividerColor,
}) : super(repaint: controller.animation) {
if (old != null) {
saveTabOffsets(old._currentTabOffsets, old._currentTextDirection);
@ -372,6 +372,7 @@ class _IndicatorPainter extends CustomPainter {
final TabBarIndicatorSize? indicatorSize;
final EdgeInsetsGeometry indicatorPadding;
final List<GlobalKey> tabKeys;
final Color? dividerColor;
final List<EdgeInsetsGeometry> labelPaddings;
// _currentTabOffsets and _currentTextDirection are set each time TabBar
@ -464,6 +465,10 @@ class _IndicatorPainter extends CustomPainter {
size: _currentRect!.size,
textDirection: _currentTextDirection,
);
if (dividerColor != null) {
final Paint dividerPaint = Paint()..color = dividerColor!..strokeWidth = 1;
canvas.drawLine(Offset(0, size.height), Offset(size.width, size.height), dividerPaint);
}
_painter!.paint(canvas, _currentRect!.topLeft, configuration);
}
@ -677,7 +682,6 @@ class TabBar extends StatefulWidget implements PreferredSizeWidget {
this.indicator,
this.indicatorSize,
this.dividerColor,
this.dividerHeight,
this.labelColor,
this.labelStyle,
this.labelPadding,
@ -727,7 +731,6 @@ class TabBar extends StatefulWidget implements PreferredSizeWidget {
this.indicator,
this.indicatorSize,
this.dividerColor,
this.dividerHeight,
this.labelColor,
this.labelStyle,
this.labelPadding,
@ -846,13 +849,6 @@ class TabBar extends StatefulWidget implements PreferredSizeWidget {
/// [ColorScheme.surfaceVariant] will be used, otherwise divider will not be drawn.
final Color? dividerColor;
/// The height of the divider.
///
/// If null and [ThemeData.useMaterial3] is true, [TabBarTheme.dividerHeight]
/// is used. If that is null and [ThemeData.useMaterial3] is true, 1.0 will be used.
/// Otherwise divider will not be drawn.
final double? dividerHeight;
/// The color of selected tab labels.
///
/// If null, then [TabBarTheme.labelColor] is used. If that is also null and
@ -1100,7 +1096,7 @@ class _TabBarState extends State<TabBar> {
}
}
Decoration _getIndicator(TabBarIndicatorSize indicatorSize) {
Decoration _getIndicator() {
final ThemeData theme = Theme.of(context);
final TabBarTheme tabBarTheme = TabBarTheme.of(context);
@ -1134,24 +1130,17 @@ class _TabBarState extends State<TabBar> {
color = Colors.white;
}
if (theme.useMaterial3 && widget._isPrimary && indicatorSize == TabBarIndicatorSize.label) {
return UnderlineTabIndicator(
borderRadius: const BorderRadius.only(
topLeft: Radius.circular(3.0),
topRight: Radius.circular(3.0),
),
borderSide: BorderSide(
return UnderlineTabIndicator(
borderRadius: theme.useMaterial3 && widget._isPrimary
// TODO(tahatesser): Make sure this value matches Material 3 Tabs spec
// when `preferredSize`and `indicatorWeight` are updated to support Material 3
// https://m3.material.io/components/tabs/specs#149a189f-9039-4195-99da-15c205d20e30,
// https://github.com/flutter/flutter/issues/116136
width: widget.indicatorWeight,
color: color,
),
);
}
return UnderlineTabIndicator(
? const BorderRadius.only(
topLeft: Radius.circular(3.0),
topRight: Radius.circular(3.0),
)
: null,
borderSide: BorderSide(
width: widget.indicatorWeight,
color: color,
@ -1196,18 +1185,17 @@ class _TabBarState extends State<TabBar> {
}
void _initIndicatorPainter() {
final ThemeData theme = Theme.of(context);
final TabBarTheme tabBarTheme = TabBarTheme.of(context);
final TabBarIndicatorSize indicatorSize = widget.indicatorSize
?? tabBarTheme.indicatorSize
?? _defaults.indicatorSize!;
_indicatorPainter = !_controllerIsValid ? null : _IndicatorPainter(
controller: _controller!,
indicator: _getIndicator(indicatorSize),
indicatorSize: indicatorSize,
indicator: _getIndicator(),
indicatorSize: widget.indicatorSize ?? tabBarTheme.indicatorSize ?? _defaults.indicatorSize!,
indicatorPadding: widget.indicatorPadding,
tabKeys: _tabKeys,
old: _indicatorPainter,
dividerColor: theme.useMaterial3 ? widget.dividerColor ?? tabBarTheme.dividerColor ?? _defaults.dividerColor : null,
labelPaddings: _labelPaddings,
);
}
@ -1402,7 +1390,6 @@ class _TabBarState extends State<TabBar> {
);
}
final ThemeData theme = Theme.of(context);
final TabBarTheme tabBarTheme = TabBarTheme.of(context);
final List<Widget> wrappedTabs = List<Widget>.generate(widget.tabs.length, (int index) {
@ -1548,24 +1535,6 @@ class _TabBarState extends State<TabBar> {
);
}
if (theme.useMaterial3) {
tabBar = Stack(
alignment: Alignment.center,
children: <Widget>[
Container(
height: widget.preferredSize.height,
alignment: Alignment.bottomCenter,
child: Divider(
height: 0,
thickness: widget.dividerHeight ?? tabBarTheme.dividerHeight ?? _defaults.dividerHeight,
color: widget.dividerColor ?? tabBarTheme.dividerColor ?? _defaults.dividerColor,
),
),
tabBar,
],
);
}
return tabBar;
}
}
@ -2099,9 +2068,6 @@ class _TabsPrimaryDefaultsM3 extends TabBarTheme {
late final ColorScheme _colors = Theme.of(context).colorScheme;
late final TextTheme _textTheme = Theme.of(context).textTheme;
@override
double? get dividerHeight => 1.0;
@override
Color? get dividerColor => _colors.surfaceVariant;
@ -2163,9 +2129,6 @@ class _TabsSecondaryDefaultsM3 extends TabBarTheme {
@override
Color? get dividerColor => _colors.surfaceVariant;
@override
double? get dividerHeight => 1.0;
@override
Color? get indicatorColor => _colors.primary;

124
packages/flutter/test/material/tab_bar_theme_test.dart
View file

@ -126,30 +126,27 @@ void main() {
final Rect tabTwoRect = tester.getRect(find.byKey(_sizedTabs[1].key!));
// Verify tabOne coordinates.
final double tabOneLeft = (tabBar.width
- (tabOneRect.width + tabTwoRect.width) - kTabLabelPadding.horizontal) / 2;
expect(tabOneRect.left, equals(tabOneLeft));
expect(tabOneRect.left, equals(kTabLabelPadding.left));
expect(tabOneRect.top, equals(kTabLabelPadding.top));
expect(tabOneRect.bottom, equals(tabBar.bottom - kTabLabelPadding.bottom - indicatorWeight));
// Verify tabTwo coordinates.
final double tabTwoRight = tabBar.width
- (tabBar.width - (tabOneRect.width + tabTwoRect.width) - kTabLabelPadding.horizontal) / 2;
expect(tabTwoRect.right, equals(tabTwoRight));
expect(tabTwoRect.right, equals(tabBar.width - kTabLabelPadding.right));
expect(tabTwoRect.top, equals(kTabLabelPadding.top));
expect(tabTwoRect.bottom, equals(tabBar.bottom - kTabLabelPadding.bottom - indicatorWeight));
// Verify tabOne and tabTwo is separated by right padding of tabOne and left padding of tabTwo.
expect(tabOneRect.right, equals(tabTwoRect.left - kTabLabelPadding.left - kTabLabelPadding.right));
// Test default divider color.
final Divider divider = tester.widget<Divider>(find.byType(Divider));
expect(divider.color, equals(theme.colorScheme.surfaceVariant));
expect(divider.thickness, 1.0);
// Test default indicator color.
// Verify divider color and indicator color.
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
expect(tabBarBox, paints..rrect(color: theme.colorScheme.primary));
expect(
tabBarBox,
paints
..line(color: theme.colorScheme.surfaceVariant)
// Indicator is a rrect in the primary tab bar.
..rrect(color: theme.colorScheme.primary),
);
});
testWidgets('Tab bar defaults (secondary)', (WidgetTester tester) async {
@ -180,30 +177,27 @@ void main() {
final Rect tabTwoRect = tester.getRect(find.byKey(_sizedTabs[1].key!));
// Verify tabOne coordinates.
final double tabOneLeft = (tabBar.width
- (tabOneRect.width + tabTwoRect.width) - kTabLabelPadding.horizontal) / 2;
expect(tabOneRect.left, equals(tabOneLeft));
expect(tabOneRect.left, equals(kTabLabelPadding.left));
expect(tabOneRect.top, equals(kTabLabelPadding.top));
expect(tabOneRect.bottom, equals(tabBar.bottom - kTabLabelPadding.bottom - indicatorWeight));
// Verify tabTwo coordinates.
final double tabTwoRight = tabBar.width
- (tabBar.width - (tabOneRect.width + tabTwoRect.width) - kTabLabelPadding.horizontal) / 2;
expect(tabTwoRect.right, equals(tabTwoRight));
expect(tabTwoRect.right, equals(tabBar.width - kTabLabelPadding.right));
expect(tabTwoRect.top, equals(kTabLabelPadding.top));
expect(tabTwoRect.bottom, equals(tabBar.bottom - kTabLabelPadding.bottom - indicatorWeight));
// Verify tabOne and tabTwo is separated by right padding of tabOne and left padding of tabTwo.
expect(tabOneRect.right, equals(tabTwoRect.left - kTabLabelPadding.left - kTabLabelPadding.right));
// Test default divider color.
final Divider divider = tester.widget<Divider>(find.byType(Divider));
expect(divider.color, equals(theme.colorScheme.surfaceVariant));
expect(divider.thickness, 1.0);
// Test default indicator color.
// Verify divider color and indicator color.
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
expect(tabBarBox, paints..line(color: theme.colorScheme.primary));
expect(
tabBarBox,
paints
..line(color: theme.colorScheme.surfaceVariant)
// Indicator is a line in the secondary tab bar.
..line(color: theme.colorScheme.primary),
);
});
testWidgets('Tab bar theme overrides label color (selected)', (WidgetTester tester) async {
@ -384,21 +378,21 @@ void main() {
expect(iconRenderObject.text.style!.color, equals(unselectedLabelColor));
});
testWidgets('Tab bar default tab indicator size (primary)', (WidgetTester tester) async {
testWidgets('Tab bar default tab indicator size', (WidgetTester tester) async {
await tester.pumpWidget(buildTabBar(useMaterial3: true, isScrollable: true));
await expectLater(
find.byKey(_painterKey),
matchesGoldenFile('tab_bar_primary.default.tab_indicator_size.png'),
matchesGoldenFile('tab_bar.default.tab_indicator_size.png'),
);
});
testWidgets('Tab bar default tab indicator size (secondary)', (WidgetTester tester) async {
await tester.pumpWidget(buildTabBar(secondaryTabBar: true, useMaterial3: true, isScrollable: true));
testWidgets('Tab bar default tab indicator size', (WidgetTester tester) async {
await tester.pumpWidget(buildTabBar(useMaterial3: true, isScrollable: true));
await expectLater(
find.byKey(_painterKey),
matchesGoldenFile('tab_bar_secondary.default.tab_indicator_size.png'),
matchesGoldenFile('tab_bar.default.tab_indicator_size.png'),
);
});
@ -470,74 +464,6 @@ void main() {
);
});
testWidgets('TabBar divider can use TabBarTheme.dividerColor & TabBarTheme.dividerHeight', (WidgetTester tester) async {
const Color dividerColor = Colors.yellow;
const double dividerHeight = 10.0;
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
useMaterial3: true,
tabBarTheme: const TabBarTheme(
dividerColor: dividerColor,
dividerHeight: dividerHeight,
),
),
home: Scaffold(
appBar: AppBar(
bottom: TabBar(
controller: TabController(length: 3, vsync: const TestVSync()),
tabs: const <Widget>[
Tab(text: 'Tab 1'),
Tab(text: 'Tab 2'),
Tab(text: 'Tab 3'),
],
),
),
),
),
);
final Divider divider = tester.widget<Divider>(find.byType(Divider));
expect(divider.color, equals(dividerColor));
expect(divider.thickness, dividerHeight);
});
testWidgets('dividerColor & dividerHeight overrides TabBarTheme.dividerColor', (WidgetTester tester) async {
const Color dividerColor = Colors.amber;
const double dividerHeight = 8.0;
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
useMaterial3: true,
tabBarTheme: const TabBarTheme(
dividerColor: Colors.pink,
dividerHeight: 5.0,
),
),
home: Scaffold(
appBar: AppBar(
bottom: TabBar(
dividerColor: dividerColor,
dividerHeight: dividerHeight,
controller: TabController(length: 3, vsync: const TestVSync()),
tabs: const <Widget>[
Tab(text: 'Tab 1'),
Tab(text: 'Tab 2'),
Tab(text: 'Tab 3'),
],
),
),
),
),
);
final Divider divider = tester.widget<Divider>(find.byType(Divider));
expect(divider.color, equals(dividerColor));
expect(divider.thickness, dividerHeight);
});
group('Material 2', () {
// Tests that are only relevant for Material 2. Once ThemeData.useMaterial3
// is turned on by default, these tests can be removed.

30
packages/flutter/test/material/tabs_test.dart
View file

@ -5778,6 +5778,36 @@ void main() {
labelColor.withAlpha(0xB2) // 70% alpha,
);
});
testWidgets('Material3 - TabBar inherits the dividerColor of TabBarTheme', (WidgetTester tester) async {
const Color dividerColor = Colors.yellow;
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
useMaterial3: true,
tabBarTheme: const TabBarTheme(dividerColor: dividerColor),
),
home: Scaffold(
appBar: AppBar(
bottom: TabBar(
controller: TabController(length: 3, vsync: const TestVSync()),
tabs: const <Widget>[
Tab(text: 'Tab 1'),
Tab(text: 'Tab 2'),
Tab(text: 'Tab 3'),
],
),
),
),
),
);
// Test painter's divider color.
final CustomPaint paint = tester.widget<CustomPaint>(find.byType(CustomPaint).last);
// ignore: avoid_dynamic_calls
expect((paint.painter as dynamic).dividerColor, dividerColor);
});
});
}