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Unverified Commit f62a1280 authored by Viren Khatri's avatar Viren Khatri Committed by GitHub
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Allow users to center align the floating label (#90157) 

Adds floatingLabelAlignment to position the label above the field.
parent f641849a
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Inline Side-by-side
Showing with 372 additions and 17 deletions
packages/flutter/test/material/input_decorator_test.dart
View file @ f62a1280
......@@ -2963,6 +2963,232 @@ void main() {
expect(tester.getTopRight(find.text('hint')).dx, 760.0);
});
testWidgets('FloatingLabelAlignment.toString()', (WidgetTester tester) async {
expect(FloatingLabelAlignment.start.toString(), 'FloatingLabelAlignment.start');
expect(FloatingLabelAlignment.center.toString(), 'FloatingLabelAlignment.center');
});
group('floatingLabelAlignment', () {
Widget buildInputDecoratorWithFloatingLabel({required TextDirection textDirection,
required bool hasIcon,
required FloatingLabelAlignment alignment,
bool borderIsOutline = false,
}) => buildInputDecorator(
// isEmpty: false (default)
// isFocused: false (default)
textDirection: textDirection,
decoration: InputDecoration(
contentPadding: const EdgeInsetsDirectional.only(start: 40.0, top: 12.0, bottom: 12.0),
floatingLabelAlignment: alignment,
icon: hasIcon ? const Icon(Icons.insert_link) : null,
labelText: 'label',
hintText: 'hint',
filled: true,
border: borderIsOutline ? const OutlineInputBorder() : null,
),
);
group('LTR with icon aligned', () {
testWidgets('start', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: true,
alignment: FloatingLabelAlignment.start,
// borderIsOutline: false, (default)
),
);
// icon (40) + contentPadding (40)
expect(tester.getTopLeft(find.text('label')).dx, 80.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: true,
alignment: FloatingLabelAlignment.start,
borderIsOutline: true,
),
);
// icon (40) + contentPadding (40)
expect(tester.getTopLeft(find.text('label')).dx, 80.0);
});
testWidgets('center', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: true,
alignment: FloatingLabelAlignment.center,
// borderIsOutline: false, (default)
),
);
// icon (40) + (decorator (800) - icon (40)) / 2
expect(tester.getCenter(find.text('label')).dx, 420.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: true,
alignment: FloatingLabelAlignment.center,
borderIsOutline: true,
),
);
// icon (40) + (decorator (800) - icon (40)) / 2
expect(tester.getCenter(find.text('label')).dx, 420.0);
});
});
group('LTR without icon aligned', () {
testWidgets('start', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: false,
alignment: FloatingLabelAlignment.start,
// borderIsOutline: false, (default)
),
);
// contentPadding (40)
expect(tester.getTopLeft(find.text('label')).dx, 40.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: false,
alignment: FloatingLabelAlignment.start,
borderIsOutline: true,
),
);
// contentPadding (40)
expect(tester.getTopLeft(find.text('label')).dx, 40.0);
});
testWidgets('center', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: false,
alignment: FloatingLabelAlignment.center,
// borderIsOutline: false, (default)
),
);
// decorator (800) / 2
expect(tester.getCenter(find.text('label')).dx, 400.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.ltr,
hasIcon: false,
alignment: FloatingLabelAlignment.center,
borderIsOutline: true,
),
);
// decorator (800) / 2
expect(tester.getCenter(find.text('label')).dx, 400.0);
});
});
group('RTL with icon aligned', () {
testWidgets('start', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: true,
alignment: FloatingLabelAlignment.start,
// borderIsOutline: false, (default)
),
);
// decorator (800) - icon (40) - contentPadding (40)
expect(tester.getTopRight(find.text('label')).dx, 720.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: true,
alignment: FloatingLabelAlignment.start,
borderIsOutline: true,
),
);
// decorator (800) - icon (40) - contentPadding (40)
expect(tester.getTopRight(find.text('label')).dx, 720.0);
});
testWidgets('center', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: true,
alignment: FloatingLabelAlignment.center,
// borderIsOutline: false, (default)
),
);
// (decorator (800) / icon (40)) / 2
expect(tester.getCenter(find.text('label')).dx, 380.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: true,
alignment: FloatingLabelAlignment.center,
borderIsOutline: true,
),
);
// (decorator (800) / icon (40)) / 2
expect(tester.getCenter(find.text('label')).dx, 380.0);
});
});
group('RTL without icon aligned', () {
testWidgets('start', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: false,
alignment: FloatingLabelAlignment.start,
// borderIsOutline: false, (default)
),
);
// decorator (800) - contentPadding (40)
expect(tester.getTopRight(find.text('label')).dx, 760.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: false,
alignment: FloatingLabelAlignment.start,
borderIsOutline: true,
),
);
// decorator (800) - contentPadding (40)
expect(tester.getTopRight(find.text('label')).dx, 760.0);
});
testWidgets('center', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: false,
alignment: FloatingLabelAlignment.center,
// borderIsOutline: false, (default)
),
);
// decorator (800) / 2
expect(tester.getCenter(find.text('label')).dx, 400.0);
await tester.pumpWidget(
buildInputDecoratorWithFloatingLabel(
textDirection: TextDirection.rtl,
hasIcon: false,
alignment: FloatingLabelAlignment.center,
borderIsOutline: true,
),
);
// decorator (800) / 2
expect(tester.getCenter(find.text('label')).dx, 400.0);
});
});
});
testWidgets('InputDecorator prefix/suffix dense layout', (WidgetTester tester) async {
await tester.pumpWidget(
buildInputDecorator(
......
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