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WIP Commits separated as follows: - Update lints in analysis_options files - Run `dart fix --apply` - Clean up leftover analysis issues - Run `dart format .` in the right places. Local analysis and testing passes. Checking CI now. Part of https://github.com/flutter/flutter/issues/178827 - Adoption of flutter_lints in examples/api coming in a separate change (cc @loic-sharma) ## Pre-launch Checklist - [ ] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [ ] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [ ] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [ ] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [ ] I added new tests to check the change I am making, or this PR is [test-exempt]. - [ ] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [ ] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
584 lines
18 KiB
Dart
584 lines
18 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/rendering.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Can size according to aspect ratio', (WidgetTester tester) async {
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final Key outside = UniqueKey();
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final Key inside = UniqueKey();
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: 200.0,
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child: FittedBox(
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key: outside,
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child: SizedBox(key: inside, width: 100.0, height: 50.0),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 200.0);
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expect(outsideBox.size.height, 100.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 100.0);
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expect(insideBox.size.height, 50.0);
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final Offset insidePoint = insideBox.localToGlobal(const Offset(100.0, 50.0));
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final Offset outsidePoint = outsideBox.localToGlobal(const Offset(200.0, 100.0));
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expect(outsidePoint, equals(const Offset(500.0, 350.0)));
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expect(insidePoint, equals(outsidePoint));
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});
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testWidgets('Can contain child', (WidgetTester tester) async {
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final Key outside = UniqueKey();
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final Key inside = UniqueKey();
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: 200.0,
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height: 200.0,
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child: FittedBox(
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key: outside,
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child: SizedBox(key: inside, width: 100.0, height: 50.0),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 200.0);
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expect(outsideBox.size.height, 200.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 100.0);
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expect(insideBox.size.height, 50.0);
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final Offset insidePoint = insideBox.localToGlobal(const Offset(100.0, 0.0));
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final Offset outsidePoint = outsideBox.localToGlobal(const Offset(200.0, 50.0));
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expect(insidePoint, equals(outsidePoint));
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});
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testWidgets('Child can cover', (WidgetTester tester) async {
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final Key outside = UniqueKey();
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final Key inside = UniqueKey();
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: 200.0,
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height: 200.0,
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child: FittedBox(
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key: outside,
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fit: BoxFit.cover,
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child: SizedBox(key: inside, width: 100.0, height: 50.0),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 200.0);
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expect(outsideBox.size.height, 200.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 100.0);
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expect(insideBox.size.height, 50.0);
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final Offset insidePoint = insideBox.localToGlobal(const Offset(50.0, 25.0));
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final Offset outsidePoint = outsideBox.localToGlobal(const Offset(100.0, 100.0));
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expect(insidePoint, equals(outsidePoint));
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});
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testWidgets('FittedBox with no child', (WidgetTester tester) async {
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final Key key = UniqueKey();
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await tester.pumpWidget(
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Center(
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child: FittedBox(key: key, fit: BoxFit.cover),
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),
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);
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final RenderBox box = tester.firstRenderObject(find.byKey(key));
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expect(box.size.width, 0.0);
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expect(box.size.height, 0.0);
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});
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testWidgets('Child can be aligned multiple ways in a row', (WidgetTester tester) async {
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final Key outside = UniqueKey();
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final Key inside = UniqueKey();
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{
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// align RTL
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.rtl,
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child: Center(
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child: SizedBox(
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width: 100.0,
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height: 100.0,
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child: FittedBox(
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key: outside,
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fit: BoxFit.scaleDown,
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alignment: AlignmentDirectional.bottomEnd,
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child: SizedBox(key: inside, width: 10.0, height: 10.0),
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),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 100.0);
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expect(outsideBox.size.height, 100.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 10.0);
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expect(insideBox.size.height, 10.0);
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final Offset insideTopLeft = insideBox.localToGlobal(Offset.zero);
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final Offset outsideTopLeft = outsideBox.localToGlobal(const Offset(0.0, 90.0));
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final Offset insideBottomRight = insideBox.localToGlobal(const Offset(10.0, 10.0));
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final Offset outsideBottomRight = outsideBox.localToGlobal(const Offset(10.0, 100.0));
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expect(insideTopLeft, equals(outsideTopLeft));
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expect(insideBottomRight, equals(outsideBottomRight));
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}
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{
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// change direction
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: SizedBox(
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width: 100.0,
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height: 100.0,
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child: FittedBox(
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key: outside,
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fit: BoxFit.scaleDown,
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alignment: AlignmentDirectional.bottomEnd,
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child: SizedBox(key: inside, width: 10.0, height: 10.0),
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),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 100.0);
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expect(outsideBox.size.height, 100.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 10.0);
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expect(insideBox.size.height, 10.0);
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final Offset insideTopLeft = insideBox.localToGlobal(Offset.zero);
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final Offset outsideTopLeft = outsideBox.localToGlobal(const Offset(90.0, 90.0));
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final Offset insideBottomRight = insideBox.localToGlobal(const Offset(10.0, 10.0));
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final Offset outsideBottomRight = outsideBox.localToGlobal(const Offset(100.0, 100.0));
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expect(insideTopLeft, equals(outsideTopLeft));
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expect(insideBottomRight, equals(outsideBottomRight));
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}
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{
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// change alignment
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: SizedBox(
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width: 100.0,
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height: 100.0,
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child: FittedBox(
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key: outside,
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fit: BoxFit.scaleDown,
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alignment: AlignmentDirectional.center,
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child: SizedBox(key: inside, width: 10.0, height: 10.0),
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),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 100.0);
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expect(outsideBox.size.height, 100.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 10.0);
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expect(insideBox.size.height, 10.0);
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final Offset insideTopLeft = insideBox.localToGlobal(Offset.zero);
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final Offset outsideTopLeft = outsideBox.localToGlobal(const Offset(45.0, 45.0));
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final Offset insideBottomRight = insideBox.localToGlobal(const Offset(10.0, 10.0));
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final Offset outsideBottomRight = outsideBox.localToGlobal(const Offset(55.0, 55.0));
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expect(insideTopLeft, equals(outsideTopLeft));
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expect(insideBottomRight, equals(outsideBottomRight));
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}
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{
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// change size
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: SizedBox(
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width: 100.0,
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height: 100.0,
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child: FittedBox(
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key: outside,
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fit: BoxFit.scaleDown,
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alignment: AlignmentDirectional.center,
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child: SizedBox(key: inside, width: 30.0, height: 10.0),
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),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 100.0);
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expect(outsideBox.size.height, 100.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 30.0);
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expect(insideBox.size.height, 10.0);
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final Offset insideTopLeft = insideBox.localToGlobal(Offset.zero);
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final Offset outsideTopLeft = outsideBox.localToGlobal(const Offset(35.0, 45.0));
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final Offset insideBottomRight = insideBox.localToGlobal(const Offset(30.0, 10.0));
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final Offset outsideBottomRight = outsideBox.localToGlobal(const Offset(65.0, 55.0));
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expect(insideTopLeft, equals(outsideTopLeft));
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expect(insideBottomRight, equals(outsideBottomRight));
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}
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{
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// change fit
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: SizedBox(
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width: 100.0,
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height: 100.0,
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child: FittedBox(
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key: outside,
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fit: BoxFit.fill,
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alignment: AlignmentDirectional.center,
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child: SizedBox(key: inside, width: 30.0, height: 10.0),
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),
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),
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),
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),
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);
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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expect(outsideBox.size.width, 100.0);
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expect(outsideBox.size.height, 100.0);
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(insideBox.size.width, 30.0);
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expect(insideBox.size.height, 10.0);
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final Offset insideTopLeft = insideBox.localToGlobal(Offset.zero);
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final Offset outsideTopLeft = outsideBox.localToGlobal(Offset.zero);
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final Offset insideBottomRight = insideBox.localToGlobal(const Offset(30.0, 10.0));
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final Offset outsideBottomRight = outsideBox.localToGlobal(const Offset(100.0, 100.0));
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expect(insideTopLeft, equals(outsideTopLeft));
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expect(insideBottomRight, equals(outsideBottomRight));
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}
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});
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testWidgets('FittedBox layers - contain', (WidgetTester tester) async {
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await tester.pumpWidget(
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const Center(
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child: SizedBox(
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width: 100.0,
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height: 10.0,
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child: FittedBox(
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child: SizedBox(
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width: 50.0,
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height: 50.0,
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child: RepaintBoundary(child: Placeholder()),
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),
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),
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),
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),
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);
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expect(getLayers(), <Type>[TransformLayer, TransformLayer, OffsetLayer]);
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});
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testWidgets('FittedBox layers - cover - horizontal', (WidgetTester tester) async {
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await tester.pumpWidget(
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const Center(
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child: SizedBox(
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width: 100.0,
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height: 10.0,
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child: FittedBox(
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fit: BoxFit.cover,
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clipBehavior: Clip.hardEdge,
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child: SizedBox(
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width: 10.0,
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height: 50.0,
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child: RepaintBoundary(child: Placeholder()),
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),
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),
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),
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),
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);
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expect(getLayers(), <Type>[TransformLayer, ClipRectLayer, TransformLayer, OffsetLayer]);
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});
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testWidgets('FittedBox layers - cover - vertical', (WidgetTester tester) async {
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await tester.pumpWidget(
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const Center(
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child: SizedBox(
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width: 10.0,
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height: 100.0,
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child: FittedBox(
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fit: BoxFit.cover,
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clipBehavior: Clip.hardEdge,
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child: SizedBox(
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width: 50.0,
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height: 10.0,
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child: RepaintBoundary(child: Placeholder()),
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),
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),
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),
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),
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);
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expect(getLayers(), <Type>[TransformLayer, ClipRectLayer, TransformLayer, OffsetLayer]);
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});
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testWidgets('FittedBox layers - none - clip', (WidgetTester tester) async {
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final values = <double>[10.0, 50.0, 100.0];
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for (final a in values) {
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for (final b in values) {
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for (final c in values) {
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for (final d in values) {
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: a,
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height: b,
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child: FittedBox(
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fit: BoxFit.none,
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clipBehavior: Clip.hardEdge,
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child: SizedBox(
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width: c,
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height: d,
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child: const RepaintBoundary(child: Placeholder()),
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),
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),
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),
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),
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);
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if (a < c || b < d) {
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expect(getLayers(), <Type>[TransformLayer, ClipRectLayer, OffsetLayer]);
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} else {
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expect(getLayers(), <Type>[TransformLayer, OffsetLayer]);
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}
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}
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}
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}
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}
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});
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testWidgets('Big child into small fitted box - hit testing', (WidgetTester tester) async {
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final GlobalKey key1 = GlobalKey();
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var pointerDown = false;
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: 100.0,
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height: 100.0,
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child: FittedBox(
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alignment: FractionalOffset.center,
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child: SizedBox(
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width: 1000.0,
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height: 1000.0,
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child: Listener(
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onPointerDown: (PointerDownEvent event) {
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pointerDown = true;
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},
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child: Container(key: key1, color: const Color(0xFF000000)),
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),
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),
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),
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),
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),
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);
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expect(pointerDown, isFalse);
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await tester.tap(find.byKey(key1));
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expect(pointerDown, isTrue);
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});
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testWidgets('Can set and update clipBehavior', (WidgetTester tester) async {
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await tester.pumpWidget(FittedBox(fit: BoxFit.none, child: Container()));
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final RenderFittedBox renderObject = tester.allRenderObjects.whereType<RenderFittedBox>().first;
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expect(renderObject.clipBehavior, equals(Clip.none));
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await tester.pumpWidget(
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FittedBox(fit: BoxFit.none, clipBehavior: Clip.antiAlias, child: Container()),
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);
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expect(renderObject.clipBehavior, equals(Clip.antiAlias));
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});
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testWidgets('BoxFit.scaleDown matches size of child', (WidgetTester tester) async {
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final Key outside = UniqueKey();
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final Key inside = UniqueKey();
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// Does not scale up when child is smaller than constraints
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: 200.0,
|
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child: FittedBox(
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key: outside,
|
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fit: BoxFit.scaleDown,
|
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child: SizedBox(key: inside, width: 100.0, height: 50.0),
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),
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),
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),
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);
|
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|
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final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
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final RenderBox insideBox = tester.firstRenderObject(find.byKey(inside));
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expect(outsideBox.size.width, 200.0);
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expect(outsideBox.size.height, 50.0);
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Offset outsidePoint = outsideBox.localToGlobal(Offset.zero);
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Offset insidePoint = insideBox.localToGlobal(Offset.zero);
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expect(insidePoint - outsidePoint, equals(const Offset(50.0, 0.0)));
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// Scales down when child is bigger than constraints
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await tester.pumpWidget(
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Center(
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child: SizedBox(
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width: 200.0,
|
|
child: FittedBox(
|
|
key: outside,
|
|
fit: BoxFit.scaleDown,
|
|
child: SizedBox(key: inside, width: 400.0, height: 200.0),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(outsideBox.size.width, 200.0);
|
|
expect(outsideBox.size.height, 100.0);
|
|
|
|
outsidePoint = outsideBox.localToGlobal(Offset.zero);
|
|
insidePoint = insideBox.localToGlobal(Offset.zero);
|
|
|
|
expect(insidePoint - outsidePoint, equals(Offset.zero));
|
|
});
|
|
|
|
testWidgets('Switching to and from BoxFit.scaleDown causes relayout', (
|
|
WidgetTester tester,
|
|
) async {
|
|
final Key outside = UniqueKey();
|
|
|
|
final Widget scaleDownWidget = Center(
|
|
child: SizedBox(
|
|
width: 200.0,
|
|
child: FittedBox(
|
|
key: outside,
|
|
fit: BoxFit.scaleDown,
|
|
child: const SizedBox(width: 100.0, height: 50.0),
|
|
),
|
|
),
|
|
);
|
|
|
|
final Widget coverWidget = Center(
|
|
child: SizedBox(
|
|
width: 200.0,
|
|
child: FittedBox(key: outside, child: const SizedBox(width: 100.0, height: 50.0)),
|
|
),
|
|
);
|
|
|
|
await tester.pumpWidget(scaleDownWidget);
|
|
|
|
final RenderBox outsideBox = tester.firstRenderObject(find.byKey(outside));
|
|
expect(outsideBox.size.height, 50.0);
|
|
|
|
await tester.pumpWidget(coverWidget);
|
|
|
|
expect(outsideBox.size.height, 100.0);
|
|
|
|
await tester.pumpWidget(scaleDownWidget);
|
|
|
|
expect(outsideBox.size.height, 50.0);
|
|
});
|
|
|
|
testWidgets('FittedBox without child does not throw', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const Center(child: SizedBox(width: 200.0, height: 200.0, child: FittedBox())),
|
|
);
|
|
|
|
expect(find.byType(FittedBox), findsOneWidget);
|
|
|
|
// Tapping it also should not throw.
|
|
await tester.tap(find.byType(FittedBox), warnIfMissed: false);
|
|
expect(tester.takeException(), isNull);
|
|
});
|
|
|
|
// Regression test for https://github.com/flutter/flutter/issues/135082
|
|
testWidgets('FittedBox with zero size child does not throw', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const Center(
|
|
child: SizedBox(
|
|
height: 200.0,
|
|
width: 200.0,
|
|
child: FittedBox(fit: BoxFit.scaleDown, child: SizedBox.shrink()),
|
|
),
|
|
),
|
|
);
|
|
expect(tester.takeException(), isNull);
|
|
|
|
await tester.pumpWidget(
|
|
Center(
|
|
child: ConstrainedBox(
|
|
constraints: const BoxConstraints(maxWidth: 200.0, maxHeight: 200.0),
|
|
child: const FittedBox(child: SizedBox.shrink()),
|
|
),
|
|
),
|
|
);
|
|
expect(tester.takeException(), isNull);
|
|
});
|
|
}
|
|
|
|
List<Type> getLayers() {
|
|
final layers = <Type>[];
|
|
Layer? container = RendererBinding.instance.renderView.debugLayer;
|
|
while (container is ContainerLayer) {
|
|
layers.add(container.runtimeType);
|
|
expect(container.firstChild, same(container.lastChild));
|
|
container = container.firstChild;
|
|
}
|
|
return layers;
|
|
}
|